1983 Pacific hurricane season

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1983 Pacific hurricane season
1983 Pacific hurricane season summary.png
Season summary map
Seasonal boundaries
First system formedMay 21, 1983
Last system dissipatedDecember 7, 1983
Strongest storm
NameKiko and Raymond
  Maximum winds145 mph (230 km/h)
(1-minute sustained)
Seasonal statistics
Total depressions26
Total storms21
Hurricanes12
Major hurricanes
(Cat. 3+)
8
Total fatalities170
Total damage$773.8 million (1983 USD)
Related articles
Pacific hurricane seasons
1981, 1982, 1983, 1984, 1985

The 1983 Pacific hurricane season was the longest season ever recorded at that time, which was later surpassed by the 2015 and 2016 seasons. The 1983 Pacific hurricane season started on May 15, 1983 in the eastern Pacific, and on June 1, 1983 in the central Pacific, and lasted until November 30, 1983. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean. [1] During the 1983 season, there were 21 named storms, which was slightly less than the previous season. Furthermore, eight storms reached major hurricane status, or Category 3 or higher on the Saffir–Simpson hurricane wind scale (SSHWS). The decaying 1982–83 El Niño event likely contributed to this level of activity. That same El Niño influenced a very quiet Atlantic hurricane season.

2015 Pacific hurricane season hurricane season in the Pacific Ocean

The 2015 Pacific hurricane season was the second-most active Pacific hurricane season on record, with 26 named storms, only behind the 1992 season. A record-tying 16 of those storms became hurricanes, and a record 11 storms further intensified into major hurricanes throughout the season. The central Pacific, the portion of the eastern Pacific between the International Dateline and the 140th meridian west, had its most active year on record, with 16 tropical cyclones forming in or entering the basin. Moreover, the season was the third-most active season in terms of accumulated cyclone energy, amassing a total of 287 units. The season officially started on May 15 in the east Pacific Ocean and on June 1 in the central Pacific; they both ended on November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Northeast Pacific basin. However, the formation of tropical cyclones is possible at any time of the year. This was shown when a tropical depression formed on December 31. The above-average activity during the season was attributed in part to the very strong 2014–16 El Niño event.

2016 Pacific hurricane season hurricane season in the Pacific Ocean

The 2016 Pacific hurricane season was tied as the fifth-most active season on record, alongside the 2014 season. Throughout the course of the year, a total of 22 named storms, 13 hurricanes and six major hurricanes were observed within the basin. Although the season was very active, it was considerably less active than the previous season, with large gaps of inactivity at the beginning and towards the end of the season. It officially started on May 15 in the eastern Pacific, and on June 1 in the central Pacific; they both ended on November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Pacific basin. However, as illustrated by Hurricane Pali, which became the earliest Central Pacific tropical cyclone on record, the formation of tropical cyclones is possible at any time of the year. After Pali, however, the active season had a slow start, becoming the first season since 2011 in which no tropical cyclones occurred in May, and also the first since 2007 in which no named storms formed in the month of June.

Tropical cyclones and subtropical cyclones are named by various warning centers to provide ease of communication between forecasters and the general public regarding forecasts, watches, and warnings. The names are intended to reduce confusion in the event of concurrent storms in the same basin. Generally once storms produce sustained wind speeds of more than 33 knots, names are assigned in order from predetermined lists depending on which basin they originate. However, standards vary from basin to basin: some tropical depressions are named in the Western Pacific, while tropical cyclones must have a significant amount of gale-force winds occurring around the centre before they are named in the Southern Hemisphere.

Contents

The first storm of the season, Hurricane Adolph became the southernmost-forming east Pacific tropical cyclone on record after forming at a latitude of 7.1°N. After a slow start, activity picked up in July, when Hurricane Gil moved through the Hawaiian Islands, resulting in moderate damage. In early August, Hurricane Ismael was responsible for three deaths and $19 million (1983 USD) in damage. During early September, Hurricanes Kiko and Lorena brought significant damage and seven deaths to southern Mexico. About a month later, Tropical Storm Octave became the worst tropical cyclone on record to affect Arizona. Octave killed 15 people, and caused $500 million in damage to Arizona and $12.5 million to New Mexico. Later in October, Hurricane Tico was a very intense hurricane at the time of its landfall and thus left 25,000 homeless. Damage throughout the country was estimated at $200 million while 135 deaths were reported in Mexico. Although most of its impact occurred in Mexico, Tico's remnants brought significant flooding in the Central United States, resulting in six deaths and $42 million in damage. A few days later, Hurricane Raymond posed a threat to Hawaii, but did little actual damage. The final storm of the season, Hurricane Winnie, was a rare December cyclone.

Hurricane Gil (1983)

Hurricane Gil was the first of several tropical cyclones to affect Hawaii during the 1983 Pacific hurricane season. Gil originated from a tropical depression that developed near Clipperton Island on July 23. Steadily intensifying, it attained tropical storm status six hours later and was upgraded to a hurricane on July 26. After attaining peak intensity on July 27, Gil encountered cooler sea surface temperatures and began to weaken. Moving west-northwest, the weakening system also accelerated and on July 31, was downgraded to a tropical depression. However, Gil began to re-intensify on August 1, becoming a tropical storm again later that day. Initially expected to veer north of Hawaii, it continued west-northwest and began to approach the Hawaiian group on August 3. While passing through the island group, Gil reached its secondary peak intensity. Subsequently, Gil began to weaken once again as it threatened the Northwestern Hawaiian Islands. After passing through the islands, Gil was downgraded to a tropical depression on August 5. Several hours later, the storm dissipated. The remnants of the storm moved into the West Pacific late on August 6 and were last noted the next morning while passing south of Midway Island.

Hawaiian Islands An archipelago in the North Pacific Ocean, currently administered by the US state of Hawaii

The Hawaiian Islands are an archipelago of eight major islands, several atolls, numerous smaller islets, and seamounts in the North Pacific Ocean, extending some 1,500 miles from the island of Hawaiʻi in the south to northernmost Kure Atoll. Formerly the group was known to Europeans and Americans as the Sandwich Islands, a name chosen by James Cook in honor of the then First Lord of the Admiralty John Montagu, 4th Earl of Sandwich. The contemporary name is derived from the name of the largest island, Hawaii Island.

Hurricane Ismael (1983)

Hurricane Ismael was responsible for significant flooding throughout the Inland Empire of the United States in August 1983. The origins of Hurricane Ismael were from a northward bulge of the Intertropical Convergence Zone (ITCZ) in early August, which resulted in the formation of a tropical depression on August 8. Six hours later, it was upgraded into Tropical storm Ismael. Continuing to intensify, Ismael was upgraded into a hurricane late on August 10 and subsequently developed an eye. After bypassing the Revillagigedo Islands, the storm reached its peak wind speed of 100 mph (160 km/h). Late on August 11, Hurricane Ismael began to weaken as it encountered cooler waters. The following day, Ismael was downgraded into a tropical storm. On August 14, the storm was downgraded into a tropical depression approximately 250 mi (400 km) west of Point Ensenada. After turning north, Ismael dissipated later that day near Guadalupe Island.

Seasonal summary

Hurricane TicoTropical Storm Octave (1983)Hurricane Ismael (1983)Hurricane Gil (1983)Saffir-Simpson Hurricane Scale1983 Pacific hurricane season
Most intense Pacific
hurricane seasons
Rank Season ACE
1 2018 318
2 1992 295
3 2015 287
4 1990 245
5 1978 207
6 1983 206
7 1993 201
8 2014 199
9 1984 193
10 1985 192

During the 1983 season, a total of 21 named storms formed, [2] which was well-above the long-term average of 15. [3] However, this total was slightly less active than the 1982 Pacific hurricane season, which saw a then-record 22 storms form. [4] [5] However, 1983 was at that time the most active season in the Eastern Pacific Hurricane Center (EPHC) warning zone, [6] but this record itself was surpassed during the 1985 Pacific hurricane season, [7] and again in the 1992 Pacific hurricane season. [8] Additionally, 12 storms reached hurricane intensity, which was above the average of eight. [6] Of the 12 hurricanes, eight attained Category 3 intensity or higher on the SSHWS. [3] The season started on May 21 with the formation of Adolph and ended on December 9, with the dissipation of Hurricane Winnie. Lasting 201 days, 1983 was the longest season on record. There were a total of 1,238 storm hours, which was the most in four years. [6] Despite the activity in the EPHC's warning responsibility, only two storms formed in the Central Pacific Hurricane Center (CPHC)'s area of responsibility, both of which stayed depressions. [9] A moderate El Niño was present throughout the season, with water temperatures across the equatorial Central Pacific was nearly 5 °F (0.6 °C) above normal. [10] The Pacific decadal oscillation (PDO) was in a warm phase during this time period. [11] Both of these factors are known to enhance Pacific hurricane season activity. Furthermore, 1983 was in the middle of an era where all but the 1988 Pacific hurricane season was near or above average. [12]

1982 Pacific hurricane season hurricane season in the Pacific Ocean

The 1982 Pacific hurricane season, with 23 named storms, ranks as the fourth-most active Pacific hurricane season on record, tied with 2018. It was at that time the most active season in the basin until it was later surpassed by the 1992 season. It officially started June 1, 1982, in the eastern Pacific, and June 1, 1982, in the central Pacific, and lasted until October 31, 1982, in the central Pacific and until November 15, 1982, in the Eastern Pacific. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean. At that time, the season was considered as the most active season within the basin; however, the 1992 season surpassed these numbers a decade later.

The Eastern Pacific Hurricane Center was formerly the center responsible for forecasting Pacific hurricanes in the eastern north Pacific east of 140°W. It was part of the Weather Bureau Forecast Office San Francisco and was based in Redwood City.

1985 Pacific hurricane season hurricane season in the Pacific Ocean

The 1985 Pacific hurricane season is the third-most active Pacific hurricane season on record. It officially started on May 15, 1985, in the eastern Pacific, and on June 1, 1985, in the central Pacific, and lasted until November 30, 1985. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean. At the time, the 1985 season was the most active on record in the eastern north Pacific, with 28 tropical cyclones forming. Of those, 24 were named, 13 reached hurricane intensity, and 8 became major hurricanes by attaining Category 3 status or higher on the Saffir-Simpson Hurricane Scale. At that time, the 24 named storms was a record; however, this record was broken seven years later in 1992, and was therefore recognized as the second busiest season within the basin, until it was surpassed exactly thirty years later by the 2015 season.

One storm in 1983 formed in May, an event the occurs every other year on average. Another storm formed in June, which was below the average of 1.7 storms per June. Despite a somewhat slow start, activity picked up in July, where 6 storms formed. This was twice the average, though only two of the storm thus far had exceeded hurricane intensity. Although August was less active, with only 3 storms developing, compared to the average of 4, two of the storms that formed in July lasted into the early part of the month. However, activity picked back up again in September, with 5 storms forming, which was above the average of 3. Three storms also formed in October, which was two storms above normal. One storm developed in November as well, a somewhat unusual occurrence. For the first time since 1947, a hurricane developed in December. [6]

Three storms during the season made landfall on Mexico. The first, Adolph did so in May. The second, Tico, hit near Mazatlán as a powerful hurricane, resulting in severe damage. Around this time, a weak tropical depression made landfall along the western portion of the nation as well. [6] In addition, Tropical Depression Raymond made landfall on Hawaii in late October. [9] Hurricane Hunters flew into 2 storms within the EPHC zone (Manuel and Ismael). [6] Moreover, they flew into 3 storms in CPHC's area of responsibility, Tropical Storms Gil and Narda, and Hurricane Raymond. [9]

Mazatlán Place in Sinaloa, Mexico

Mazatlán is a city in the Mexican state of Sinaloa. The city serves as the municipal seat for the surrounding municipio, known as the Mazatlán Municipality. It is located at 23°13′N106°25′W on the Pacific coast, across from the southernmost tip of the Baja California Peninsula.

Systems

Hurricane Adolph

Category 2 hurricane (SSHWS)
Adolph 1983-05-24 1800Z.png   Adolph 1983 track.png
DurationMay 21 – May 28
Peak intensity110 mph (175 km/h) (1-min) 

On May 21, a tropical depression formed 500 mi (805 km) southwest of Managua, [6] at a latitude of 7.1°N, becoming the southernmost-forming tropical cyclone in the east Pacific basin. [13] As the depression headed gradually west-northwestward over extremely warm sea surface temperatures, it steadily intensified. Later that day, the depression intensified into Tropical Storm Adolph. Further intensification occurred as Adolph headed west-northwestward; by May 24, the EPHC reported that Adolph had strengthened into a hurricane, [6] setting a then-record for the earliest known hurricane in the basin, though this was later surpassed by Hurricane Alma in May 1990. [14] Shortly thereafter, the storm turned northwestward and intensified into a Category 2 hurricane on the SSHWS. Around that time, Adolph attained its peak intensity with winds of 110 mph (175 km/h) [6] as the storm briefly developed a well-defined eye. [15] At that time, Adolph was the strongest May hurricane on record. However, this record was broken by a hurricane in 2001 that was also named Adolph. [16]

Managua Place in Nicaragua

Managua is the capital and largest city of Nicaragua, and the center of an eponymous department. Located on the southwestern shore of Lake Managua, it had an estimated population 1,042,641 in 2016 within the city's administrative limits and a population of 1,401,687 in the metropolitan area, which additionally includes the municipalities of Ciudad Sandino, El Crucero, Nindirí, Ticuantepe and Tipitapa.

Tropical cyclones are unofficially ranked on one of five tropical cyclone intensity scales, according to their maximum sustained winds and which tropical cyclone basin(s) they are located in. Only a few scales of classifications are used officially by the meteorological agencies monitoring the tropical cyclones, but some alternative scales also exist, such as accumulated cyclone energy, the Power Dissipation Index, the Integrated Kinetic Energy Index, and the Hurricane Severity Index.

1990 Pacific hurricane season hurricane season in the Pacific Ocean

The 1990 Pacific hurricane season was a very active season which observed 21 named storms within the basin. The season also produced the fourth highest ACE index value on record. The season was officially started on May 15 in the eastern Pacific, and on June 1 in the central Pacific, and lasted until November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean. However, these bounds were slightly exceeded when Hurricane Alma formed on May 12.

Following peak intensity, Adolph gradually weakened to a Category 1 hurricane. [2] By May 25, Adolph curved sharply north-northeastward, as a result of being steered by anticyclonic deep-layer mean. Despite being situated over fairly warm waters, Adolph weakened considerably due to increased wind shear. [6] Although the EPHC expected the storm to stay at sea, [17] Adolph curved north-northeastward. It was then downgraded to a tropical storm on May 25. [2] Rapidly weakening, Tropical Storm Adolph moved onshore near Puerto Vallarta early the next day. After briefly moving offshore, it again made landfall near Mazatlán at 0800 UTC that day. Adolph soon dissipated over land, [6] becoming the first of two storms to strike the Pacific coast of Mexico during the season. [3] Because Hurricane Adolph weakened significantly prior to landfall, [6] no deaths or major damage occurred. [6] However, the remnants of the storm brought heavy showers and gusty winds to Florida. [18] Although a modern Pacific hurricane season begins May 15, [1] one newspaper considered Adolph a "pre-season" storm. [19]

Hurricane Barbara

Category 4 hurricane (SSHWS)
Barbara 1983-06-14 2115Z.png   Barbara 1983 track.png
DurationJune 9 – June 18
Peak intensity130 mph (215 km/h) (1-min) 

A tropical disturbance was first observed in early June about 210 mi (340 km) south of Guatemala, and headed westward. The tropical disturbance intensified, and became the second tropical depression of the season on June 9. After staying a tropical depression for 24 hours, the system was subsequently upgraded to Tropical Storm Barbara. [6] Initially, Barbara was expected to come very close to the Mexican coast; however, this failed to happen. [17] At first, Tropical Storm Barbara moved west-northwest, though on June 11, the cyclone turned west-northwest [6] while gradually gaining intensity. [2] At 1800 UTC on June 12, Barbara was estimated to have attained hurricane status while centered 175 mi (280 km) north of Clipperton Island. [6] Shortly after becoming a hurricane, rapid deepening commenced, and by early the next morning, the hurricane was a high-end Category 1. Six hours later, Barbara skipped Category 2 status, and became a major hurricane. At 1800 UTC on June 13, Hurricane Barbara was upgraded into a category 4 hurricane on the SSHWS [2] while its peak strength of 135 mph (215 km/h). [6] At peak, Barbara had a "fantastic eye". [15]

Hurricane Barbara held on to peak intensity for a day. [2] Thereafter, Barbara slowly weakened after peak intensity as it began to encounter cooler water temperatures, while moving slowly northward around the western edge of a high pressure area over central Mexico. By the early morning hours of June 16, the hurricane was positioned 380 km (235 mi) west-southwest of Socorro Island and about 500 mi (805 km) west of the coast of Mexico. Later that day, Barbara weakened into a tropical storm due to strong wind shear. Barbara was downgraded to a tropical depression early on June 17. Further weakening persisted, and Barbara dissipated on June 18. [6] At the time of dissipation, the system was situated several hundred miles west-southwest of the Baja California peninsula. [2]

Tropical Storm Cosme

Tropical storm (SSHWS)
Cosme 3 July 1983.jpg   Cosme 1983 track.png
DurationJuly 2 – July 5
Peak intensity40 mph (65 km/h) (1-min) 

A westward-moving low-latitude tropical disturbance was declared a tropical depression early on July 2. After making a turn northwest, the depression maintained its intensity for 42 hours. By 1200 UTC on July 4, the system was finally upgraded into a tropical storm after convection increased in coverage. However, Cosme failed to intensify further, and after encountering cooler waters, the storm rapidly dissipated. The EPHC declared Cosme dissipated at 1800 UTC on July 5. [6]

Tropical Storm Dalilia

Tropical storm (SSHWS)
Dalilia 1983-07-07 2030Z.png   Dalilia 1983 track.png
DurationJuly 5 – July 12
Peak intensity70 mph (110 km/h) (1-min) 

An intense area of thunderstorms developed 230 mi (370 km) south of the Gulf of Tehuantepec on July 4. The system was first classified as a tropical depression at 1800 UTC on July 5 roughly 345 mi (555 km) south-southeast of Acapulco. Turning west-northwest and then northwest while accelerating, the EPHC upgraded the depression into Tropical Storm Dalilia at 1800 UTC on July 6. Continuing to gain strength, Dalilia reached its peak intensity as a strong tropical storm early on July 8. After turning west the tropical storm started to lose strength while encountering colder water. At 0600 UTC on July 10, Tropical Storm Dalilia had been downgraded into a tropical depression. Two days later, the EPHC reported that the tropical cyclone had dissipated. [6]

Tropical Storm Erick

Tropical storm (SSHWS)
Erick 1983-07-14 1815Z.png   Erick 1983 track.png
DurationJuly 12 – July 16
Peak intensity65 mph (100 km/h) (1-min) 

Tropical Storm Erick originated from a tropical wave that crossed Central America on July 9 and July 10. At 0600 UTC on July 12, the EPHC reported that it had upgraded the disturbance into a tropical depression. The depression moved steadily west-northwest under the influence of an anticyclone over the Yucatán Peninsula. The system gradually intensified over waters as warm as 86 °F (30 °C) and at 0000 UTC on July 13, the agency upgraded the low into a tropical storm. Tropical Storm Erick reached its peak intensity on July 14 as a high-end tropical storm. The storm maintained peak intensity for 24 hours, before encountering cooler water. Rapidly weakening, Erick dissipated on July 16 far from land. [6]

Tropical Storm Flossie

Tropical storm (SSHWS)
Flossie 19 July 1983.jpg   Flossie 1983 track.png
DurationJuly 17 – July 21
Peak intensity60 mph (95 km/h) (1-min) 

A tropical disturbance developed 70 mi (115 km) southwest of Manzanillo late on July 16. Several hours later, the disturbance was classified as a tropical depression. Initially, the depression drifted southward, but at 1800 UTC on July 17, the system suddenly turned west-northwest and accelerated. The storm gradually intensified while passing northeast of Socorro Island. Midday on July 19, the tropical depression was upgraded into Tropical Storm Flossie. Six hours later, Tropical Storm Flossie reached its peak wind speed of 60 mph (95 km/h). While the storm approached the Baja California peninsula, the storm ultimately turned west into an area of cool water and high amounts of wind shear. By 0000 UTC on July 21, Flossie weakened into a tropical storm. Twelve hours later, Flossie ceased to exist as a tropical cyclone. [6]

Hurricane Gil

Category 1 hurricane (SSHWS)
Gil 27 July 1983.jpg   Gil 1983 track.png
DurationJuly 23 – August 5
Peak intensity90 mph (150 km/h) (1-min) 

The seventh tropical cyclone of the season developed during the afternoon hours of July 23 north of Clipperton Island. Thereafter, the EPHC upgraded the depression to Tropical Storm Gil on July 24. Gil subsequently began to intensify; on 0000 UTC July 26, the storm was upgraded into a Category 1 hurricane. Early on July 27, the storm attained its peak intensity of 90 mph (145 km/h). Despite turning west-northwest, Hurricane Gil maintained hurricane intensity until July 29 when the storm began to encounter cooler waters. Two days later, Gil was downgraded a tropical depression. [6] After entering CPHC's warning zone on August 1, the CPHC Gil was re-upgraded into a tropical storm. [9] Gil accelerated while approaching the Hawaiian Islands; on August 3, the tropical cyclone reached its secondary peak of 45 mph (70 km/h). After passing through the Hawaiian islands, Gil passed very close to French Frigate Shoals on August 4 as a marginal tropical storm. Early on August 5, the system was downgraded into a tropical depression and degenerated into a trough about 300 mi (485 km) west-northwest of Tern Island later that day. [9]

Prior to arrival of Gil, gale warnings were issued for much of the islands, but on August 2, these warnings were discontinued for all islands except for Kauai. [20] [21] Jellyfish stung 50 tourists. [20] [22] On the northern part of the island, 70 mph (115 km/h) winds were reported, resulting in extensive damage in some areas, but slight damage to others. [23] A minor power outage on the island briefly left 2,400 customers without electricity. In Maui, the outer rainbands of Gil led to minor flooding. [24] Overall, damage from Gil was minimal and less than expected. [9] [25] Offshore, one person was presumed to have died when a 19 ft (5 m) catamaran, named Hurricane, went missing. [9] Additionally, the 30-foot ship Adad nearly sunk in the storm and all three people on board sustained injuries. [26]

Hurricane Henriette

Category 4 hurricane (SSHWS)
Henriette 1983-07-30 2000Z.png   Henriette 1983 track.png
DurationJuly 27 – August 6
Peak intensity130 mph (215 km/h) (1-min) 

A tropical disturbance developed about 180 mi (290 km) south of the Guatemala coastline. After developing a circulation, the system was upgraded into a tropical depression on July 27. Moving west-northwest, the depression strengthened into Tropical Storm Henriette at 1800 UTC that day. [6] Henriette continued to deepen, and by late on July 28, the storm attained winds of 65 mph (105 km/h). [2] Although initially expected to pose a threat to Hawaii, [17] this did not occur. It rapidly intensified, [2] and late on July 28, the EPHC upgraded the storm into a hurricane. While turning west-southwest on a track similar to Gil's, [6] it attained Category 2 intensity on July 29. At 0000 UTC on July 30, Henriette was upgraded into a Category 3 hurricane. After leveling off in intensity, [2] the storm passed within 70 mi (115 km) within Clipperton Island. [6] Hurricane Henriette attained its peak intensity early on July 31, with winds of 135 mph (215 km/h), a Category 4 system. [2] At peak, Henriette displayed a well-defined eye. [6]

After continuing west-northwest for 12 hours, it then veered northwest and began to encounter cooler ocean temperatures. Henriette was slow to weaken, [6] and by August 2, it was downgraded into a Category 2 hurricane. [2] Two days later, Henriette was downgraded into a tropical storm. A strong trough of low pressure pulled Henriette northwest, and later north. On August 5, the storm was downgraded into a tropical depression. The storm dissipated the next day at a high latitude, though the remnants of Henriette brought cloud cover to Oregon and Washington. [6]

Tropical Depression Nine

Tropical depression (SSHWS)
Tropical Depression Nine-E 1983.jpg  
DurationAugust 3 – August 7
Peak intensity35 mph (55 km/h) (1-min) 

On July 30 and 31, a tropical disturbance crossed Central America. At a low latitude, a tropical depression was declared on August 3. [6] At first, the storm was expected to turn west-northwest, [17] but it continued west instead. [6] Nine failed to intensify despite being situated over warm water. The depression dissipated on August 7 later over somewhat cooler water. [6]

Hurricane Ismael

Category 2 hurricane (SSHWS)
Ismael 10 August 1983.jpg   Ismael 1983 track.png
DurationAugust 8 – August 14
Peak intensity100 mph (155 km/h) (1-min) 

The origins of Hurricane Ismael were from a northward bulge of the Intertropical Convergence Zone (ITCZ) in early August, which resulted in the formation of a tropical depression on August 8. Six hours later, it was upgraded into Tropical storm Ismael. Continuing to intensity, Ismael was upgraded into a hurricane late on August 10 and subsequently developed an eye. The storm soon reached its peak of 100 mph (160 km/h). Late on August 11, Hurricane Ismael began to weaken as it encountered cooler waters and the hurricane was soon downgraded to a Category 1 on the SSHWS. The following day, Ismael was downgraded into a tropical storm about 380 mi (610 km) west of the Baja California peninsula. On August 14, the storm was downgraded into a tropical depression while centered about 250 mi (400 km) west of Point Ensenada. [6] Ismael dissipated that day. [2]

While still out at sea, Ismael brought 6–9 ft (1.8–2.7 m) waves to much of Southern California, though waves from the storm were less than expected. [27] One person was swept away at a beach. [28] The remnants of the storm later moved over South California, [29] resulting in moderate rainfall. [30] The Yucca Valley was the worst hit by the storm, [31] where nearly every road was washed out. [32] Almost 50,000 residents in Palm Springs were isolated due to rains. [31] A tornado near Los Angeles led to minor damage. [31] In San Bernardino, many buildings were destroyed, forcing numerous evacuations. [33] Around 80,000 homes were left without power across the Inland Empire. [34] Moreover, three interstates were closed. In all, minor injuries were reported and three people died in San Bernardino when their car swept into a channel. [33] [35] Damage from the storm totaled $19 million (1983 USD). [36] After affecting California, the remnants of the hurricane moved into Nevada. Many parking lots in Laughlin were flooded. [35] Two small towns were also isolated. [33] Several major streets in the outskirts of Las Vegas were closed because of flooding. [35]

Tropical Depression Eleven

Tropical depression (SSHWS)
Tropical Depression Eleven-E 1983.jpg  
DurationAugust 15 – August 16
Peak intensity35 mph (55 km/h) (1-min) 

The eleventh cyclone of the 1983 season formed from an intense area of thunderstorms located over the Yucatán Peninsula on August 11 and 12. After crossing the Mexican mainland, it emerged into the Pacific basin near Guadalajara early on August 13. After turning northwest, it intensified into a depression two days later after showing sign of a circulation. The depression continued northwest with little change in wind speed, and on August 16, about 24 hours after formation, the depression dissipated after its circulation ceased very close to landfall on the Baja California peninsula. [6]

Tropical Depression One-C

Tropical depression (SSHWS)
Tropical Depression One-C 1983.jpg  
DurationAugust 19 – August 20
Peak intensity35 mph (55 km/h) (1-min) 

Tropical Depression One-C formed on August 19 far from land, with winds of 35 mph (56 km/h). It moved steadily west. Despite being over warm waters, One-C quickly weakened and lost deep convection. The depression dissipated on August 20 after briefly developing a closed circulation. [9]

Tropical Storm Juliette

Tropical storm (SSHWS)
Juliette 26 August 1983.jpg   Juliette 1983 track.png
DurationAugust 24 – September 1
Peak intensity60 mph (95 km/h) (1-min) 

Tropical Storm Juliette originated from a tropical depression that first formed on August 24 130 mi (210 km) east-northeast of Clipperton Island. Moving west-northwest and briefly west, the depression gradually intensified. The system then turned northwest around a ridge off the west coast of Baja California Sur. At 1800 UTC on August 26, the EPHC announced that the depression had strengthened into a tropical storm. Moving toward a strong trough off the west coast of the peninsula, Juliette reached its peak intensity as a mid-level tropical storm early on August 29, with winds of 60 mph (95 km/h). Upon attaining peak intensity, Juliette developed an eye. However, Juliette began to weaken over cooler water. Meanwhile, the trough weakened and Tropical Storm Juliette headed west. On August 30, the EPHC remarked that Juliette was downgraded into a depression. Two days later, Tropical Depression Juliette had dissipated over cold water. [6]

Tropical Depression Two-C

Tropical depression (SSHWS)
Tropical Depression Two-C 1983.jpg  
DurationAugust 31 – September 1
Peak intensity35 mph (55 km/h) (1-min) 

A disturbance in the ITCZ developed a circulation on August 29 and organized into a tropical depression two days later. Traveling west-northwest, Two-C was initially in a favorable environment, and was thus expected to become a tropical storm. However, it soon encountered a trough and dry air, which arrested development. It crossed the international dateline on September 1 and the Joint Typhoon Warning Center began issuing advisories on the system. The depression gradually weakened and dissipated on September 8. Its remnants lingered near the Marshall Islands for a few more days. [9]

Hurricane Kiko

Category 4 hurricane (SSHWS)
Hurricane Kiko Sep 3 1983 1915Z.jpg   Kiko 1983 track.png
DurationAugust 31 – September 9
Peak intensity145 mph (230 km/h) (1-min) 

Hurricane Kiko originated from a tropical disturbance that crossed Central America on August 26 and 27. After emerging into the Pacific, the disturbance moved steadily westward. At 0600 UTC on August 31, the EPHC classified the system as a tropical depression about 300 mi (485 km) south of Salina Cruz. A well-developed ridge was centered over New Mexico and was moving southward, causing light wind shear over the system. At 1800 UTC on August 31, the depression intensified into Tropical Storm Kiko. [6] Initially expected to turn west and head out to sea, [17] the storm moved northwest while paralleling the Mexican coast. Early on September 1, Kiko began to explosively deepen, and by 1800 UTC, it intensified into a Category 3 hurricane on the SSHWS, bypassing both Category 1 and 2 status. Six hours later, the EPHC reported that Kiko had intensified into a low-end Category 4. After remaining at this intensity for 30 hours, the hurricane resumed intensification, attaining its peak intensity of 145 mph (235 km/h) late on September 3 about 400 mi (645 km) west of Lázaro Cárdenas. [2]

Shortly after its peak, a combination of cooler waters and increased wind shear associated with the subtropical jetstream [6] resulted in rapid weakening. Hurricane Kiko was soon downgraded to Category 3 status on the SSHWS, before briefly re-intensifying on September 4. That day, Kiko resumed weakening and was downgraded to a Category 2 as the storm turned west-northwest away from the Mexican coast. On September 5, the storm was downgraded into a Category 1 system; [2] by this time, the EPHC revised their forecast and expected the storm to accelerate and approach Baja California. [17] On September 7, Kiko weakened into a tropical storm. [6] Subsequently, the system turned north [2] and was downgraded to a tropical depression the next day. Now devoid of convection, Kiko dissipated early on September 9 [6] about 450 mi (725 km) west-southwest of Baja California. [2]

The outer rainbands of Hurricane Kiko caused considerable damage to homes and hotels situated near the coast of Mexico, forcing the evacuation of hundreds. The resorts of Tecomán and Manzanillo were the worst hit by the storm. Outside of Colima, however, little damage was reported. [37] Kiko brought high clouds to the extreme southwestern portion of the Baja California Peninsula for four days. [38] While at sea, Hurricane Kiko was responsible for 12 ft (3.7 m) waves along Newport Beach, California, resulting in more than 100 lifeguard rescues. [39] [40] As a weakening tropical system, Kiko brought subtropical moisture [41] and high clouds to California. [42]

Hurricane Lorena

Category 3 hurricane (SSHWS)
Lorena 1983-09-08 1845Z.png   Lorena 1983 track.png
DurationSeptember 6 – September 14
Peak intensity115 mph (185 km/h) (1-min) 

Towards the end of the first week of September, the next cyclone of the season was starting to form south of the Mexican coast. A disturbance moved westward and was classified as a tropical depression about 90 mi (145 km) south of Acapulco early on September 6. Like Kiko, the storm deepened rapidly, and was upgraded into a tropical storm at 1800 UTC that day. [6] Initially moving very slowly, the storm made a sharp turn northwest, parallel to the coast of Mexico. Accelerating, [2] a poorly defined eye first became visible on satellite imagery around 1500 UTC on September 7. The EPHC upgraded Lorena into a hurricane three hours later. [6] Early the next day, Lorena intensified into a Category 2 hurricane. [2] At 1200 UTC on September 8, Lorena attained winds of a Category 3 hurricane on the SSHWS; [2] simultaneously, the storm reached its peak intensity, with winds of 115 mph (185 km/h). [6]

After maintaining peak intensity for six hours, [2] Lorena began to weaken over cooler waters. [6] Very early on September 9, the EPHC downgraded Lorena weakened into a Category 1 hurricane; [2] the storm was expected to emerge into the southern Gulf of California in about 48 hours and thereafter meander. However, this did not occur. [17] Meanwhile, Lorena was re-upgraded into a Category 2 hurricane, an intensity of which it held on to for 12 hours. After briefly weakening back to a Category 1 hurricane, [2] Lorena moved west-northwest and into a low wind shear environment. [6] Subsequently, Lorena attained its secondary peak with winds of 105 mph (170 km/h) while passing about 150 mi (240 km) south of Cabo San Lucas. [2] However, cooler water began to take its toll on the storm and on September 12, [6] the storm was downgraded into a Category 1. [2] Later that day, Lorena weakened into a tropical storm due to a combination of strong shear and cold sea surface temperatures. Midday on September 13, the EPHC downgraded the system into a tropical depression. Furthermore, the system dissipated 18 hours later. At the time of dissipation, Lorena was centered about 750 mi (1,205 km) west-southwest of San Diego. [6]

Hurricane Lorena brought rough surf and squally weather to much of the coast of Mexico, particularly Manzanillo. [43] Furthermore, it was also responsible for $33,000 in damage to Acapulco. Seven people died due to flooding. Four ships drowned in the storm; as a result, many local ports were closed. In addition, a mudslide blocked a portion of the Pan-American Highway. [44]

Hurricane Manuel

Category 3 hurricane (SSHWS)
Hurricane Manuel Sep 17 1983 0615Z.jpg   Manuel 1983 track.png
DurationSeptember 12 – September 20
Peak intensity115 mph (185 km/h) (1-min) 

A vigorous tropical disturbance was first noted on September 10 south of the Gulf of Tehuantepec. Despite the presence of wind shear, the EPHC upgraded system into a tropical depression at 0600 UTC on September 12 and a tropical storm at 1200 UTC that day [6] while centered around 300 mi (485 km) south of Puerto Escondido. Manuel reached hurricane strength early on September 14. Several hours later, Manuel reached a secondary peak wind speed of 90 mph (145 km/h). However, this trend was short lived, and very early on September 15, the storm's wind diminished to 75 mph (120 km/h), only to reintensify again that evening. [2] Early on September 16, Manuel turned towards the north while developing a small eye. [6] Hurricane Manuel maintained winds of 90 mph (145 km/h) for a day before the EPHC upgraded Manuel into a Category 2 hurricane. [2] On September 17, however, Manuel developed a much larger and well-defined eye; [6] that afternoon; Manuel reaching its peak intensity of 115 mph (185 km/h) as a major hurricane. [6]

The storm held onto major hurricane winds for 12 hours before subsequently weakening. [2] At 0000 UTC on September 18, the eye collapsed as it began to encounter colder ocean temperatures. [6] Manuel was intercepted by a Hurricane Hunter aircraft that day, which found no evidence of an eyewall, thus, Manuel was downgraded into a tropical storm [6] about 600 mi (965 km) south of San Diego. After turning north-northeast, [2] Hurricane Hunters penetrated the storm for the second time, noting that the storm was a swirl of clouds. [6] On September 19, the EPHC downgraded the system into a depression. The following day, Manuel made landfall along the eastern portion of Guadalupe Island [2] before dissipating at 1200 UTC. [6]

The remnants of Hurricane Manuel later brought rain to the southwestern United States. The outer rainbands of Manuel began to produce moisture over the region on September 18, and continued until September 21. [45] In the mountains and deserts of California, the storm brought heavy rains across. [46] [47] A laboratory near Palm Springs recorded a peak rainfall total of 2.85 in (72 mm). [45] A total 3,000 customers lost electricity in Porterville because of high winds, heavy rains, which led to minor damage. Numerous fires occurred in Kern County, but none of these fires caused major damage. [48] Further east, in Arizona, isolated rain showers were reported, peaking at 2.56 in (65 mm) at the Alamo Dam. [45] Along the northern portion of Baja California, Manuel brought showers and high waves. [49] In all, impact from the storm was less than anticipated. [50]

Tropical Storm Narda

Tropical storm (SSHWS)
Narda 28 September 1983.jpg   Narda 1983 track.png
DurationSeptember 21 – October 1
Peak intensity70 mph (110 km/h) (1-min) 

Several hours after Manuel dissipated on September 20, a tropical disturbance formed 200 mi (320 km) south of Socorro Island. While situated south of a ridge, the disturbance started to deepen. After developing a circulation, the system was declared a tropical depression the morning of September 21. Later that morning, the EPHC upgraded the disturbance into a tropical storm. [6] Narda held on to marginal tropical storm intensity for 36 hours before quickly intensifying, and by September 23, the storm had attained winds of 60 mph (95 km/h). [2] Thereafter, the storm turned west-northwest and weakened steadily after encountering cooler water. On September 26, the EPHC downgraded Narda into a depression. After accelerating, the storm entered the CPHC zone the next day. [6]

Tropical Storm Narda then began to encounter slightly warmer waters, and thus began to restrengthen. At 1800 UTC on September 27, the CPHC announced that Narda had regained tropical storm strength. It quickly intensified and early on September 29, a Hurricane Hunter aircraft reported winds of 70 mph (115 km/h) and the formation of an eye. At this time, Narda was located about 300 mi (485 km) southeast of Hilo. That evening, the storm start to show signs of weakening as it turned southwest away from the Hawaiian group. On September 30, however, Narda, with winds of 50 mph (80 km/h), made its closest approach the Hawaii, passing 150 mi (240 km) south of South Point. After briefly intensifying on October 1, it suddenly dissipated hours later. [9]

Because of data from tropical cyclone forecast models, which showed Narda passing very near the Hawaiian islands, [9] and fears of a repeat of Hurricane Iwa, [51] a hurricane watch was posted for all the Hawaiian Islands at 0700 UTC on September 28. [9] Gale warnings and high surf advisories were issued for the entire state. [51] Officials urged many Hawaiians to complete preparations by the night of September 28. [52] [53] Campers at coastal parks were also ordered by police to find shelter on higher ground. [54] [55] However, the hurricane watch was discontinued after Narda veered away on September 29. [9] Meanwhile, gale warnings and high surf advisories were dropped that day for all islands except for the Big Island. [56] The outer rainbands of Narda brought locally heavy rain to the state. [51] Flooding was reported of eastern areas of the Big Island. [57] Nine families were evacuated to shelters. [58] Higher than normal surf was also observed on southeast and east facing beaches. Overall, damage from Narda was minor. [9]

Tropical Storm Octave

Tropical storm (SSHWS)
Octave 28 September 1983.jpg   Octave 1983 track.png
DurationSeptember 27 – October 2
Peak intensity50 mph (85 km/h) (1-min) 

A tropical disturbance formed south of the Gulf of Tehuantepec on September 23, which moved west for four days prior to attaining tropical depression status. Initially, the depression was situated over warm waters; however, wind shear subsequently increased in the vicinity of the storm. However, on September 28, the depression strengthened into Tropical Storm Octave. Six hours later, Octave attained its peak intensity of 45 mph (70 km/h) and decreased in forward speed while turning to the northeast. On September 30, began to weaken due to cooler waters and increasing vertical wind shear. At 1200 UTC on October 2, the EPHC issued their last advisory on the storm, as the surface circulation had dissipated. [6]

Due to the threat for flooding, local flood warnings were issued for much of Arizona. [59] In the end, the highest rainfall associated with Octave was 12.0 in (300 mm) at Mount Graham. [60] [61] Throughout the state, excessive rainfall caused many rivers to overflow. [62] [63] The Santa Cruz, Rillito, and Gila rivers experienced their highest crests on record. [64] Runoff from both the Rillito and Santa Cruz rivers flooded Marana. [65] Major flooding was reported along the Gila River, [65] and two of its tributaries, the San Francisco River and the San Pedro River. These rains devastated Clifton along the San Francisco River valley. [65] Over 700 homes were destroyed in Clifton. [60] Further south along the Gila River, major flooding was reported in extreme southeastern Arizona. [66] Willcox was nearly flooded. [67] Further west, in Phoenix, 150 people were evacuated from an apartment complex. [68] Throughout the greater Phoenix area, eight fires were started via lighting. [69]

Tropical Storm Octave was considered the worst flood in Pima County history. [70] Octave is also regarded as the worst tropical system to affect Arizona. [71] Around 3,000 buildings were damaged due to Octave. [68] A total of 853 structures were destroyed by Octave while 2,052 others were damaged. [67] About 10,000 people were temporarily displaced. [72] Damage in Arizona totaled $500 million. Fourteen people drowned and 975 persons were injured. [73] Elsewhere, in New Mexico, a peak total of 5.42 in (138 mm) of rain was recorded, [74] resulting in flooding. New Mexico governor Toney Anaya declared a state of emergency in Catron County. [75] Damage in New Mexico was estimated at $12.5 million. [76] In Mexico, 12 in (300 mm) of rain was reported in Altar. [61] In Sonora, many roads were closed. [77] On October 3, Arizona Governor Bruce Babbitt declared a state of emergency. [78] President Ronald Reagan declared eight Arizona counties a "major disaster area" on October 5. [79]

Hurricane Priscilla

Category 3 hurricane (SSHWS)
Priscilla 1983-10-03 2015Z.png   Priscilla 1983 track.png
DurationSeptember 30 – October 7
Peak intensity115 mph (185 km/h) (1-min) 

While Tropical Storm Octave was still active, a tropical disturbance formed on September 29 near Clipperton Island. The disturbance moved northwest, and was upgraded into a depression at 1800 UTC. While moving beneath the southwest side of a ridge, Priscilla steadily intensified. [6] Early on October 3, Priscilla was upgraded into a hurricane. After remaining a Category 1 hurricane for most of the day, it was upgraded into a Category 2 hurricane that evening, and subsequently, began to rapidly intensify. At 0000 UTC on October 4, about 24 hours after first becoming a hurricane, Priscilla was upgraded into a major hurricane, with winds of 115 mph (185 km/h). [2] While at peak, which it held on for 12 hours, Priscilla displayed a well-defined eye. Additionally, the hurricane began a sharp turn to the north-northwest [2] due to a strong trough off the Southern California coast [6] and the storm was initially expected to move onshore Baja California and bring flooding rains to Arizona. [17]

Shortly after its peak, Priscilla began to encounter cooler waters and thus it start to slowly lose strength. [6] During the pre-dawn hours of October 5, Priscilla weakened into a Category 2. Later that day, it was downgraded into a Category 1 system. [2] By 0000 UTC on October 6, the EPHC downgraded the system into a tropical storm. [6] By this time, it was anticipated that the system would make landfall as a tropical system on California. [80] Quickly weakening, Priscilla was downgraded into a depression that day. Early on October 7, Priscilla dissipated about 150 mi (240 km) southwest of Guadalupe Island. [6]

Due to the storm's threat to California, flash flood watches were issued for much of the southern portion of the state. [81] In Arizona, heavy equipment was evacuated from flood-prone areas. [82] Along the central Baja California peninsula, showers were reported. [83] While still a Category 2 hurricane, the outer rainbands of Priscilla brought rains to California, resulting in power outages, hail, and traffic accidents. In Los Angeles, a daily rainfall record was set. [84] Some streets in Anaheim and Santa Ana were flooded. The roof of a church was also damaged. Consequently, flash flood warnings were posted for parts of Los Angeles, Riverside, and San Bernardino Counties. [85] Offshore, rough seas were generated. [80] Across northwestern Arizona and Nevada, heavy showers and thunderstorms occurred. [81] The remnants of the storm moved over the area on October 7. [46] Rainfall totals were less than expected and most weather stations recorded less than .1 in (5 mm) of precipitation. A peak total of .35 in (8.9 mm) was measured in Ely. [17]

Hurricane Raymond

Category 4 hurricane (SSHWS)
Raymond 1983-10-11 2015Z.png   Raymond 1983 track.png
DurationOctober 8 – October 20
Peak intensity145 mph (230 km/h) (1-min) 

A tropical wave crossed Nicaragua on October 5, moving westward. A ridge center was over Mexico and a well-developed ridge extended westward towards the Hawaiian Islands. [6] Despite the presence of strong wind shear, it was upgraded to a tropical depression 764 mi (1,230 km) south-southeast of Cabo San Lucas on October 8. The depression moved over 84 to 86 °F (29 to 30 °C) waters, intensifying into Tropical Storm Raymond on October 9. Intensifying quickly, Raymond attained hurricane status on October 10. Hurricane Raymond subsequently developed a small but distinct eye. [6] Rapidly intensifying, the storm rapidly moved west. Raymond was upgraded into a major hurricane late on October 10. [2] Raymond reached its peak winds of 145 mph (235 km/h) as a moderate Category 4 hurricane roughly 24 hours after becoming a hurricane. [6] At the time of its peak, the hurricane was located about 800 mi (1,285 km) south of San Diego. [2] Raymond is believed to have held on to peak intensity for almost two days. [6]

The hurricane subsequently weakened and was only a Category 2 by October 13, but it re-intensified over the next few days. [2] With continued warm waters, the system crossed into the CPHC warning zone, [6] reaching a secondary peak of 140 mph (230 km/h) on October 14 while becoming one of the strongest storms ever recorded in the region. By then, Raymond had begun a movement to the northwest. The eye later became poorly defined while the symmetric shape of the hurricane became elongated. The Hurricane Hunters confirmed the weakening trend, reporting a pressure of 968 mbar (28.6 inHg). Hurricane Raymond weakened to a tropical storm on October 16 as wind shear took its toll on the storm. Meanwhile, the storm drifted northwest and underwent several loops. Two days later the storm resumed its westward motion as it weakened to a tropical depression. It became devoid of deep convection, and made landfall on Molokai on October 20 while still tropical depression. Shortly thereafter, Raymond dissipated inland. [86]

Because meteorologists were predicting that the storm may pose a threat to the Hawaiian island group, the CPHC issued a hurricane watch for Hawaii. [9] A high-surf advisory also was issued. As Raymond approached Hawaii, the cyclone kicked up very high surfs that pounded the big island. On the east end of the Hawaiian Island chain was battered by 10–15 ft (3.0–4.6 m) waves. [87] In addition, Raymond brought beneficial rains and gusty winds on all islands. Precipitation ranged from 1 to 2 in (25 to 51 mm) on Maui. There was one casualty when a sailor, Richard Sharp, was killed overboard off the 44-foot yacht "Hazana"; the boat, which was dismasted, was traveling from Tahiti to San Diego, but the course was altered to Hawaii because of the storm. [88] [89] [90]

Tropical Storm Sonia

Tropical storm (SSHWS)
Sonia 1983-10-13 2045Z.png   Sonia 1983 track.png
DurationOctober 9 – October 14
Peak intensity45 mph (75 km/h) (1-min) 

Situated several hundred miles west of Hurricane Raymond, a tropical disturbance formed on October 8. Moving west-northwest, the disturbance was upgraded into a tropical depression on October 9. After moving west-northwest for 12 hours, it turned west. Despite warm waters, strong westerly wind shear prevented much further development. On October 10, the EPHC upgraded Sonia into a tropical storm. That day, Sonia reached its peak intensity of 45 mph (75 km/h). However, this was short-lived as the thunderstorm activity quickly became displaced from the center. At 0000 UTC on October 11, Sonia weakened into a tropical depression. [6] About 24 hours later, Sonia weakened into a tropical disturbance after it failed to maintain a closed circulation. Thereafter, the storm entered the CPHC's warning zone, where it began to encounter warmer waters and lighter wind shear, and thus began to deepen. On October 13, Sonia regained tropical storm intensity and briefly posed a threat to Hawaii. Despite remaining small and disorganized, Sonia reached its peak intensity of 45 mph (75 km/h) for a second time that evening. However, outflow from Hurricane Raymond weakened the system and Sonia dissipated on October 14 over 1,000 miles (1,610 km) south-southeast of the Big Island. [9]

Hurricane Tico

Category 4 hurricane (SSHWS)
Tico 1983-10-18 2030Z.png   Tico 1983 track.png
DurationOctober 11 – October 19
Peak intensity130 mph (215 km/h) (1-min) 

The origins of Hurricane Tico were from a weak tropical disturbance that crossed Costa Rica into the Pacific Ocean on October 7. Over warm waters, the system was sufficiently organized to be declared Tropical Depression Twenty-One on October 11, about 575 mi (930 km) south of Acapulco. On October 12 it turned sharply northward; the depression was upgraded to Tropical Storm Tico on October 13. Tropical Storm Tico continued to intensify. Two days after becoming a tropical storm, Tico strengthened further to attain hurricane status. By October 16, Tico had reached major hurricane status. [6] Early on October 19, it reached peak winds of 130 mph (215 km/h). It weakened slightly as it approached the coast, and at about 1500  UTC that day Tico made landfall near Mazatlán with winds of 125 mph (205 km/h). [6] It rapidly weakened over land and merged with a cold front. The remnants of Tico were last observed on October 24 over Ohio. [91]

Moderate rainfall was reported around the landfall location, peaking at 8.98 in (228 mm) in Pueblo Nuevo, Durango; lighter precipitation of 13 in (2575 mm) occurred further inland toward the Mexico/United States border. [91] Two 328 ft (100 m) anchored ships were washed aground by strong waves and swells, [92] with a total of seven ships reported missing. [93] Overall, the hurricane sank nine small ships, and nine fishermen were killed. Hurricane Tico was responsible severe flooding and heavy damage due to strong winds. Throughout the state of Sinaloa, the hurricane destroyed nearly 19,000 acres (77 km²) of bean and corn, although most of the agricultural damage occurred south of Mazatlán. [6] In addition, the hurricane disrupted the flow of drinking water. A total of 13 hotels received extensive damage and 14 people were hurt. [94] Twenty-five thousand people were left homeless and damage throughout the country was estimated at $200 million (1983  USD). [95] Hurricane Tico caused a total of 135 deaths in Mexico. [96]

Rain from Tico continued into the South-Central United States; [91] serious flooding was reported along the lower Washita River. [97] Across Guthire, 5% of the town's population, sought three emergency shelter due to 7 ft (2.1 m) deep water. [98] [99] Throughout Oklahoma and Texas, 200 people were displaced and six people were killed. [100] [101] A total of $77 million in crop damage occurred in Oklahoma. Total damage in the state was estimated at $84 million. [102] Elsewhere, one person was killed in the Kansas. [94] [98]

Tropical Depression Twenty-Two

Tropical depression (SSHWS)
Tropical Depression Twenty-Two-E 1983.jpg  
DurationOctober 18 – October 18
Peak intensity35 mph (55 km/h) (1-min) 

On October 18, a tropical disturbance was noted about 300 mi (485 km) south of the Gulf of Tehuantepec. Moving west-northwest, the disturbance was upgraded into a depression. After turning northwest, the depression dissipated an hour before moving ashore. Lasting less than 24 hours, Twenty-Two was the shortest-lived storm of the season. Despite the lack of damage, [6] 10 in (250 mm) of rain was measured along portions of the Southern Mexico coast. [91]

Tropical Storm Velma

Tropical storm (SSHWS)
Velma 1983-11-01 1845Z.png   Velma 1983 track.png
DurationNovember 1 – November 3
Peak intensity40 mph (65 km/h) (1-min) 

A tropical disturbance developed within the ITCZ during October 31. Despite unfavorable conditions, the system began to organize, and became Tropical Depression Twenty-Three on November 1. It quickly intensified, and was upgraded to Tropical Storm Velma six hours later. No further intensification occurred; Velma peaked as a minimal tropical storm. The tropical storm began to weaken after 18 hours, and was downgraded to a tropical depression on November 2. The following day, the EPHC issued the final advisory on Tropical Depression Velma. [6]

Hurricane Winnie

Category 1 hurricane (SSHWS)
Winnie 1983-12-05 2000Z.png   Winnie 1983 track.png
DurationDecember 4 – December 7
Peak intensity90 mph (150 km/h) (1-min) 

Due to a combination of unusually warm sea surface temperatures and the displacement of the ITCZ to north, a small area of disturbed weather formed in early December. [103] Situated south-southwest of Acapulco, the disturbance organized into a tropical depression on December 4. It slowly headed north, and intensified into a tropical storm. [6] Winnie peaked in intensity on December 6, and became the strongest Pacific hurricane in December since records began. [2] . Initially expected to continue north, [104] the storm stalled instead. Due to wind shear caused by a trough, Winnie began to rapidly deteriorate, and it was downgraded into a tropical storm that night. After weakening further into a depression, Winnie dissipated on December 7. [6] Its remnant disturbance then moved west. Winnie was an out of season storm, and is the only known December tropical cyclone in the east Pacific proper since the modern record began in 1949. [105] Winnie is the latest hurricane on record in the eastern North Pacific. [106]

Although the tropical cyclone never made landfall, it caused rain in parts of Mexico. The highest total of 3.6 in (91 mm) was recorded in Caleta de Campos. [105] Furthermore, the storm brought strong winds to the region, [107] but damage was less than expected. [108]

Storm names

The following names were used for named storms that formed in the eastern Pacific in 1983. All the names on the list were used this year. No names were retired, so it was used again in the 1989 season. This was the first time most of these names were used since the modern lists began, except for the name Priscilla which was previously used in the old four-year lists. No central Pacific names were used; the first name used would have been Keli. [109]

  • Adolph
  • Barbara
  • Cosme
  • Dalilia
  • Erick
  • Flossie
  • Gil
  • Henriette
  • Ismael
  • Juliette
  • Kiko
  • Lorena
  • Manuel
  • Narda

See also

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The 1980 Pacific hurricane season officially started May 15, 1980, in the eastern Pacific and June 1, 1980, in the central Pacific, lasting until November 30, 1980. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern and central Pacific Ocean. This season was relatively uneventful; since no tropical cyclones made landfall, there were no reports of casualties or damage.

2005 Pacific typhoon season typhoon season in the Pacific Ocean

The 2005 Pacific typhoon season was the least active typhoon season since 2000, featuring only 24 tropical storms, 13 typhoons and three super typhoons. The season ran throughout 2005, though most tropical cyclones typically develop between May and October. The season's first named storm, Kulap, developed on January 15, while the season's last named storm, Bolaven, dissipated on November 20.

1979 Pacific hurricane season hurricane season in the Pacific Ocean

The 1979 Pacific hurricane season was an inactive Pacific hurricane season. It officially started on May 15, 1979, in the eastern Pacific, and June 1, 1979, in the central Pacific, and lasted until November 30, 1979. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeast Pacific Ocean.

1975 Pacific hurricane season hurricane season in the Pacific Ocean

The 1975 Pacific hurricane season officially started May 15, 1975, in the eastern Pacific, and June 1, 1975, in the central Pacific, and lasted until November 30, 1975. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeast Pacific Ocean.

1987 Pacific typhoon season typhoon season in the Pacific Ocean

The 1987 Pacific typhoon season has no official bounds; it ran year-round in 1987, but most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean. Tropical storms formed in the entire west pacific basin were assigned a name by the Joint Typhoon Warning Center. Tropical depressions that enter or form in the Philippine area of responsibility are assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA. This can often result in the same storm having two names.

1979 Pacific typhoon season typhoon season in the Pacific Ocean

The 1979 Pacific typhoon season featured the most intense tropical cyclone recorded globally, Typhoon Tip. The season also experienced above-average tropical cyclone activity. The season had no official bounds; it ran year-round in 1979, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.

1978 Pacific hurricane season hurricane season in the Pacific Ocean

The 1978 Pacific hurricane season officially began May 15, 1978, in the eastern Pacific, June 1, 1978, in the central Pacific, and officially ended on November 30, 1978. These dates conventionally delimit the period of time when tropical cyclones form in the eastern north Pacific Ocean.

1968 Pacific hurricane season hurricane season in the Pacific Ocean

The 1968 Pacific hurricane season ties the record for having the most active August in terms of tropical storms. It officially started on May 15, 1968, in the eastern Pacific and June 1 in the central Pacific and lasted until November 30, 1968. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean.

Hurricane Ramon

Hurricane Ramon was a very intense Pacific hurricane that generated heavy rains in Southern California. The 19th named storm and final hurricane of the above-average 1987 Pacific hurricane season, Ramon originated from a tropical disturbance that formed in early October. On October 5, a tropical storm had developed several hundred miles southwest of Manzanillo, bypassing the tropical depression stage. Tropical Storm Ramon turned to the west-northwest after initially moving west. It intensified into a hurricane on October 7. Two days later, Hurricane Ramon peaked in intensity with winds of 140 mph (220 km/h). After peaking, Ramon turned to the northwest and rapidly weakened over cooler waters. It weakened into a tropical storm on October 11 and a depression on October 12. Ramon dissipated shortly thereafter. While at sea, Ramon brought light rainfall to the Baja California Peninsula. The remnants of Hurricane Ramon produced heavy rainfall that caused flooding in California, indirectly contributing to five traffic-related fatalities. Rainfall was reported as far inland as Utah.

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