Meteorological history | |
---|---|
Formed | August 28,2006 |
Dissipated | September 4,2006 |
Category 4 major hurricane | |
1-minute sustained (SSHWS/NWS) | |
Highest winds | 130 mph (215 km/h) |
Lowest pressure | 948 mbar (hPa);27.99 inHg |
Overall effects | |
Fatalities | 5 direct |
Damage | $60.9 million (2006 USD) |
Areas affected | Guerrero,Michoacán,Baja California Sur,Arizona,California,New Mexico,Texas |
IBTrACS | |
Part of the 2006 Pacific hurricane season |
Hurricane John was a Category 4 hurricane that caused heavy flooding and extensive damage across most of the Pacific coast of Mexico in late August through early September 2006. John was the eleventh named storm,seventh hurricane,and fifth major hurricane of the 2006 Pacific hurricane season. Hurricane John developed on August 28 from a tropical wave to the south of Mexico. Favorable conditions allowed the storm to intensify quickly,and it attained peak winds of 130 mph (210 km/h) on August 30. Eyewall replacement cycles and land interaction with western Mexico weakened the hurricane,and John made landfall on southeastern Baja California Sur with winds of 110 mph (180 km/h) on September 1. It slowly weakened as it moved northwestward through the Baja California peninsula,and dissipated on September 4. Moisture from the remnants of the storm entered the southwest United States.
The hurricane threatened large portions of the western coastline of Mexico,resulting in the evacuation of tens of thousands of people. In coastal portions of western Mexico,strong winds downed trees,while heavy rain resulted in mudslides. Hurricane John caused moderate damage on the Baja California peninsula,including the destruction of more than 200 houses and thousands of flimsy shacks. The hurricane killed five people in Mexico,and damage totaled $663 million (2006 MXN,$60.8 million 2006 USD). In the southwest United States,moisture from the remnants of John produced heavy rainfall. The rainfall aided drought conditions in portions of northern Texas,although it was detrimental in locations that had received above-normal rainfall throughout the year.
The tropical wave that would become John moved off the coast of Africa on August 17. It entered the eastern Pacific Ocean on August 24, and quickly showed signs of organization. That night, Dvorak classifications were initiated on the system while it was just west of Costa Rica, [1] and it moved west-northwestward at 10–15 mph (16–24 km/h). [2] Conditions appeared favorable for further development, [3] and convection increased late on August 26 over the area of low pressure. [4] Early on August 27, the system became much better organized about 250 miles (400 km) south-southwest of Guatemala, [5] although convection remained minimal. [6] Early on August 28, banding increased within its organizing convection, and the system developed into Tropical Depression Eleven-E. [7]
Due to low amounts of vertical shear, very warm waters, and abundant moisture, steady intensification was forecast, [7] and the depression strengthened to Tropical Storm John later on August 28. [8] Deep convection continued to develop over the storm, [9] while an eye feature developed within the expanding central dense overcast. [10] The storm continued to intensify, and John attained hurricane status on August 29 while 190 miles (310 km) south-southeast of Acapulco. Banding features continued to increase as the hurricane moved west-northwestward around the southwest periphery of a mid- to upper-level ridge over northern Mexico. [11] The hurricane underwent rapid intensification, and John attained major hurricane status 12 hours after becoming a hurricane. [1] Shortly thereafter, the eye became obscured, and the intensity remained at 115 mph (185 km/h) [12] due to an eyewall replacement cycle. Another eye formed, [13] and based on Reconnaissance data, the hurricane attained Category 4 status on the Saffir-Simpson Hurricane Scale on August 30 about 160 miles (260 km) west of Acapulco, or 95 miles (153 km) south of Lázaro Cárdenas, Michoacán. [14] Hours later, the hurricane underwent another eyewall replacement cycle, [15] and subsequently weakened to Category 3 status as it paralleled the Mexican coastline a short distance offshore. [16]
Due to land interaction and its eyewall replacement cycle, Hurricane John weakened to a 105 mph (169 km/h) hurricane by late on August 31, [1] but restrengthened to a major hurricane shortly after as its eye became better defined. [17] After completing another eyewall replacement cycle, the hurricane again weakened to Category 2 status, [18] and on September 1, it made landfall on Cabo del Este on the southern tip of Baja California Sur, with winds of 110 mph (180 km/h). [19] John passed near La Paz as a weakening Category 1 hurricane on September 2, [1] and weakened to a tropical storm shortly thereafter over land. [20] John continued to weaken, and late on September 3, the system deteriorated to a tropical depression while still over land. [21] By September 4, most of the convection decoupled from the circulation towards mainland Mexico, and a clear circulation had not been discernible for 24 hours. Based on the disorganization of the system, the National Hurricane Center issued its last advisory on the system. [22]
The Mexican army and emergency services were stationed near the coast, while classes at public schools in and around Acapulco were canceled. Officials in Acapulco advised residents in low-lying areas to be on alert, and also urged fishermen to return to harbor. Authorities in the twin resort cities of Ixtapa and Zihuatanejo closed the port to small ocean craft. [23] Government officials in the state of Jalisco declared a mandatory evacuation for 8,000 citizens in low-lying areas to 900 temporary shelters. Temporary shelters were also set up near Acapulco. [24] The state of Michoacán was on a yellow alert, the middle of a five-level alert system. [25] Carnival Cruise Lines diverted the path of one cruise ship traveling along the Pacific waters off Mexico. [26]
On August 31, the Baja California Sur state government ordered the evacuation of more than 10,000 residents. Those who refused to follow the evacuation order would have been forced to evacuate by the army. Shelters were set up to allow local residents and tourists to ride out the storm. [27] Just weeks after a major flood in the area, officials evacuated hundreds of citizens in Las Presas in northern Mexico area near a dam. All public schools in the area were closed, as well. [28]
On September 4, the United States' National Weather Service issued flood watches and warnings for portions of Texas and the southern two-thirds of New Mexico. [29]
The powerful winds of Hurricane John produced heavy surf and downed trees near Acapulco. The hurricane produced a 10-foot (3.0 m) storm surge in Acapulco that flooded coastal roads. [1] In addition, John caused heavy rainfall along the western coast of Mexico, peaking at 12.5 inches (320 mm) in Los Planes, Jalisco. [1] The rainfall resulted in mudslides in the Costa Chica region of Guerrero, leaving around 70 communities isolated. [30]
In La Paz, capital of Baja California Sur, the hurricane downed 40 power poles. Authorities cut off the power supply to the city to prevent electrocutions from downed wires. Strong winds downed trees and destroyed many advertisement signs. [31] Heavy rainfall totaling more than 20 inches (510 mm) in isolated areas [29] resulted in ankle-deep flooding, closing many roads in addition to the airport in La Paz. [31] In La Paz, 300 families received damage to their homes, with another 200 families left homeless after their houses were destroyed. [32] The combination of winds and rain destroyed thousands of flimsy houses across the region. The rainfall also destroyed large areas of crops, and also killed many livestock. [33] The rainfall caused the Iguagil dam in Comondú to overflow, isolating 15 towns due to 4 feet (1.2 m) floodwaters. [34] In the coastal city of Mulegé, flash flooding caused widespread damage throughout the town and the death of a United States citizen. More than 250 homes were damaged or destroyed in the town, leaving many people homeless. [32] Severe flooding blocked portions of Federal Highway 1, and damaged an aqueduct in the region. [35]
In all, Hurricane John destroyed hundreds of houses and blew off the roofs of 160 houses on the Baja California peninsula. [36] Five people were killed, [1] and damage in Mexico amounted to $663 million (2006 MXN, $60.8 million 2006 USD). [37]
In Ciudad Juárez, Chihuahua, across the U.S. border from El Paso, Texas, rainfall from the storm's remnants flooded 20 neighborhoods, downed power lines, and resulted in several traffic accidents. [29] Rainfall from John, combined with continual precipitation during the two weeks before the storm, left thousands of people homeless. [38]
Moisture from the remnants of John combined with an approaching cold front to produce moderate amounts of rainfall across the southwest United States, including a total of 8 inches (200 mm) in Whitharral [39] and more than 3 inches (76 mm) in El Paso, Texas. The rainfall flooded many roads in southwestern Texas, [29] including a 1⁄2 mile (800 m) portion of Interstate 10 in El Paso. [40] A slick runway at El Paso International Airport delayed a Continental Airlines jet when its tires were stuck in mud. [29] Rainfall from John in El Paso, combined with an unusually wet year, resulted in twice the normal annual rainfall, and caused 2006 to be the ninth wettest year on record by September. [41] Damage totaled about $100,000 (2006 USD) in the El Paso area from the precipitation. [42] In northern Texas, the rainfall alleviated a severe drought, [28] caused the Double Mountain Fork Brazos River to swell and Lake Alan Henry to overflow. [43] The Texas Department of Transportation closed numerous roads due to flooding from the precipitation, including a portion of U.S. Route 385 near Levelland. Several other roads were washed out. [39]
Moisture derived from John also produced rainfall across southern New Mexico, peaking at 5.25 inches (133 mm) at Ruidoso. The rainfall overflowed rivers, forcing people to evacuate along the Rio Ruidoso. [44] The rainfall also caused isolated road flooding. [29] Rainfall in New Mexico canceled an annual wine festival in Las Cruces and caused muddy conditions at the All American Futurity at the Ruidoso Downs, the biggest day of horse racing in New Mexico. [45] Flooding was severe in Mesquite, Hatch, and Rincon, where many homes experienced 4 feet (1.2 m) of flooding and mud. [46] Some homeowners lost all they owned. [47] Tropical moisture from the storm also produced rainfall in Arizona [29] and Southern California. In California, the rainfall produced eight separate mudslides, trapping 19 vehicles, but caused no injuries. [48]
Branches of the Mexican Red Cross in Guerrero, Oaxaca and Michoacán were put on alert. The organization's national emergency response team was on stand-by to assist the most affected areas. [30] Navy helicopters delivered food and water to remote areas of the Baja California peninsula. [33] The Mexican Red Cross dispatched 2,000 food parcels to the southern tip of Baja California Sur. [49] In the city of Mulegé, gas supply, which was necessary to run generators, was low, drinking water was gone, and the airstrip was covered with mud. Many homeless residents initially stayed with friends or in government-run shelters. [32] Throughout the Baja California peninsula, thousands remained without water or electricity two days after the storm, [35] although a pilot from Phoenix prepared to fly to the disaster area with 100 gallons (380 litres) of water. Other pilots were expected to execute similar flights, as well. [32] The office of Baja California Sur Tourism stated that minimal damage occurred to the tourism infrastructure, with only minor delays to airports, roads, and maritime facilities. [50] The Episcopal Relief and Development delivered food, clothing, medicine, and transportation to about 100 families, and gave mattresses to about 80 families. [38]
Many residents in Tucson, including more than 50 students, delivered supplies to flood victims in New Mexico, including clothing and other donations. [47]
Hurricane Juliette was a powerful Pacific hurricane that struck Mexico in September 2001. A long-lived tropical cyclone, Juliette originated from a tropical wave that exited western Africa, the same wave that earlier spawned Atlantic Tropical Depression Nine near Nicaragua on September 19. Two days later, a new tropical depression developed offshore Guatemala, which became Hurricane Juliette by September 22 as it rapidly intensified off western Mexico. On September 24 it strengthened into a Category 4 hurricane on the Saffir-Simpson scale, only to weaken due to an eyewall replacement cycle, then re-intensified a day later to attain maximum sustained winds of 230 km/h (145 mph), with a minimum barometric pressure of 923 mbar (27.3 inHg). Juliette weakened as it moved toward the Baja California peninsula, producing hurricane-force winds and torrential rainfall across Baja California Sur. On September 30 after the hurricane had weakened, Juliette made landfall near San Carlos as a minimal tropical storm. After drifting across the Gulf of California, Juliette dissipated on October 3.
Tropical Storm Chris was the fourth tropical storm of the 2006 Atlantic hurricane season. Forming on July 31 in the Atlantic Ocean east of the Leeward Islands from a tropical wave, Chris moved generally to the west-northwest, skirting the northern fringes of the Caribbean islands. Chris was a relatively short-lived storm, reaching a peak intensity with winds at 65 mph (105 km/h) on August 2, while positioned north of St. Martin. The storm gradually weakened before finally dissipating on August 5, near eastern Cuba. Overall impact was minimal, amounting to moderate amounts of rainfall throughout its path. No deaths were reported.
Hurricane Lane was a powerful tropical cyclone which is tied as the ninth-strongest landfalling Pacific hurricane on record. The thirteenth named storm, ninth hurricane, and sixth major hurricane of the 2006 Pacific hurricane season, Lane developed on September 13 from a tropical wave to the south of Mexico. It moved northwestward, parallel to the coast of Mexico, and steadily intensified in an area conducive to further strengthening. After turning to the northeast, Lane attained peak winds of 125 mph (201 km/h), and made landfall in the state of Sinaloa at peak strength. It rapidly weakened and dissipated on September 17, and later brought precipitation to southern part of the U.S. state of Texas.
Hurricane Paul was a Category 2 Pacific hurricane that struck Mexico as a tropical depression in October 2006. The seventeenth named storm and tenth hurricane of the annual hurricane season, Paul developed from an area of disturbed weather on October 21. The cyclone slowly intensified as it moved into an area of warm waters and progressively decreasing wind shear. Paul attained hurricane status on October 23, and later that day the storm reached its peak intensity with maximum sustained winds of 105 mph (169 km/h), a strong Category 2 hurricane on the Saffir-Simpson scale. A strong trough turned the hurricane to the north and northeast into an area of strong vertical shear, and Paul weakened to a tropical storm on October 24. It accelerated northeastward, and after passing a short distance south of Baja California Sur the low level circulation became decoupled from the rest of the convection. Paul weakened to a tropical depression on October 25 a short distance off the coast of Mexico, and after briefly turning away from the coast it made landfall on northwestern Sinaloa on October 26. The depression dissipated shortly thereafter.
Tropical Storm Emilia was a rare tropical cyclone that affected the Baja California Peninsula in July 2006. The sixth tropical depression and fifth tropical storm of the 2006 Pacific hurricane season, it developed on July 21 about 400 miles (640 km) off the coast of Mexico. It moved northward toward the coast, reaching peak winds of 65 mph (105 km/h) before turning westward and encountering unfavorable conditions. Emilia later turned to the north, passing near Baja California as a strong tropical storm. Subsequently, the storm moved further away from the coast, and on July 27 it dissipated.
The 2008 Pacific hurricane season was a near-average Pacific hurricane season which featured seventeen named storms, though most were rather weak and short-lived. Only seven storms became hurricanes, of which two intensified into major hurricanes. This season was also the first since 1996 to have no cyclones cross into the central Pacific. The season officially began on May 15 in the eastern Pacific and on June 1 in the central Pacific. It ended in both regions on November 30. These dates, adopted by convention, historically describe the period in each year when most tropical cyclone formation occurs in these regions of the Pacific. This season, the first system, Tropical Storm Alma, formed on May 29, and the last, Tropical Storm Polo, dissipated on November 5.
Tropical Storm Norman was a weak tropical cyclone that brought heavy rainfall to southwestern Mexico in October 2006. The fifteenth named storm of the 2006 Pacific hurricane season, Norman developed on October 9 from a tropical wave well to the southwest of Mexico. Unfavorable conditions quickly encountered the system, and within two days of forming, Norman dissipated as its remnants turned to the east. Thunderstorms gradually increased again, as it interacted with a disturbance to its east, and on October 15 the cyclone regenerated just off the coast of Mexico. The center became disorganized and quickly dissipated, bringing a large area of moisture which dropped up to 6 inches (150 mm) of rainfall to southwestern Mexico. Rainfall from the storm flooded about 150 houses, of which 20 were destroyed. One person was injured, and initially there were reports of two people missing due to the storm; however, it was not later confirmed.
Tropical Storm Julio was a tropical storm that made landfall on the southern tip of Baja California Sur in August 2008. The eleventh named storm of the 2008 Pacific hurricane season, it developed from a tropical wave on August 23 off the coast of Mexico. It moved parallel to the coast, reaching peak winds of 50 mph (85 km/h) before moving ashore and weakening. On August 26 it dissipated in the Gulf of California. Julio was the third tropical cyclone to make landfall in the Eastern Pacific tropical cyclone basin during the season, after Tropical Storm Alma, which struck Nicaragua in May, and Tropical Depression Five-E, which moved ashore along southwestern Mexico in July. The storm brought locally heavy rainfall to southern Baja California, killing one person and leaving several towns isolated. Moisture from Julio reached Arizona, producing thunderstorms, including one which damaged ten small planes in Chandler.
The 2006 Pacific hurricane season was the first above-average season since 1997 which produced twenty-five tropical cyclones, with nineteen named storms, though most were rather weak and short-lived. There were eleven hurricanes, of which six became major hurricanes. Following the inactivity of the previous seasons, forecasters predicted that season would be only slightly above active. It was also the first time since 2003 in which one cyclone of at least tropical storm intensity made landfall. The season officially began on May 15 in the East Pacific Ocean, and on June 1 in the Central Pacific; they ended on November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Pacific basin. However, the formation of tropical cyclones is possible at any time of the year.
Hurricane Hernan was the fourth and final tropical cyclone to strike Mexico at hurricane intensity during the 1996 Pacific hurricane season. The thirteenth tropical cyclone, eighth named storm, and fifth hurricane of the season, Hernan developed as a tropical depression from a tropical wave to the south of Mexico on September 30. The depression quickly strengthened, and became Tropical Storm Hernan later that day. Hernan curved north-northwestward the following day, before eventually turning north-northeastward. Still offshore of the Mexican coast on October 2, Hernan intensified into a hurricane. Six hours later, Hernan attained its peak as an 85 mph (140 km/h) Category 1 hurricane on the Saffir-Simpson Hurricane Wind Scale (SSHWS). After weakening somewhat, on 1000 UTC October 3, Hurricane Hernan made landfall near Barra de Navidad, Jalisco, with winds of 75 mph (120 km/h). Only two hours after landfall, Hernan weakened to a tropical storm. By October 4, Tropical Storm Hernan had weakened into a tropical depression, and dissipated over Nayarit on the following day.
Hurricane Norbert is tied with Hurricane Jimena as the strongest tropical cyclone to strike the west coast of Baja California Sur in recorded history. The fifteenth named storm, seventh hurricane, and second major hurricane of the 2008 hurricane season, Norbert originated as a tropical depression from a tropical wave south of Acapulco on October 3. Strong wind shear initially prevented much development, but the cyclone encountered a more favorable environment as it moved westward. On October 5, the National Hurricane Center (NHC) upgraded the depression to Tropical Storm Norbert, and the system intensified further to attain hurricane intensity by October 6. After undergoing a period of rapid deepening, Norbert reached its peak intensity as a Category 4 on the Saffir–Simpson hurricane wind scale, with maximum sustained winds of 135 mph (217 km/h) and a minimum barometric pressure of 945 mbar. As the cyclone rounded the western periphery of a subtropical ridge over Mexico, it began an eyewall replacement cycle which led to steady weakening. Completing this cycle and briefly reintensifying into a major hurricane, a Category 3 or higher on the Saffir–Simpson hurricane wind scale, Norbert moved ashore Baja California Sur as a Category 2 hurricane late on October 11. After a second landfall at a weaker intensity the following day, the system quickly weakened over land and dissipated that afternoon.
Tropical Storm Odile was a late season tropical storm that formed during the 2008 Pacific hurricane season and affected parts of southern Mexico. A tropical depression formed on October 8, and became Tropical Storm Odile 18 hours later. The storm paralleled the south coast of Mexico, with the center located only several miles offshore. After peaking in intensity, increasing southeasterly vertical wind shear induced a trend of rapid weakening on the storm. Correspondingly, Odile was downgraded to a tropical depression early on 12 October, subsequently degenerating into a remnant low about 55 mi (85 km) south of Manzanillo, Colima. From thereon, the low proceeded slowly south-southwestward before dissipating on October 13. Since Odile stayed at sea, its effects along coastlines were limited. The most notable damages were caused by flooding along the southern coast of Mexico, mostly in Chiapas, Oaxaca, Guerrero and Michoacán. The exact amount of damage, however, remains unknown, and no fatalities were reported as a result of the storm.
The 2009 Pacific hurricane season was the most active Pacific hurricane season since 1997. 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 Eastern Pacific tropical cyclone basin; however, tropical cyclone formation is possible at any time of the year. The first system of the season, Tropical Depression One-E, developed on June 18, and the last, Hurricane Neki, dissipated on October 27, keeping activity well within the bounds of the season.
Hurricane Howard was a powerful Category 4 hurricane which produced large swells along the coasts of the Baja California Peninsula and southern California. The cyclone was the eighth named storm, fourth hurricane, and second major hurricane of the 2004 Pacific hurricane season. Howard originated out of a tropical wave off the coast of Mexico on August 30. Traveling towards the northwest, the storm gradually strengthened, becoming a hurricane on September 1 and reaching its peak intensity the following day with winds of 140 mph (220 km/h). Decreasing sea surface temperatures then caused the storm to weaken. By September 4, Howard was downgraded to a tropical storm. The next day, it degenerated into a non-convective remnant low-pressure area which persisted for another five days before dissipating over open waters.
Tropical Storm Carlos was the first of five tropical cyclones to make landfall during the 2003 Pacific hurricane season. It formed on June 26 from a tropical wave to the south of Mexico. It quickly strengthened as it approached the coast, and early on June 27 Carlos moved ashore in Oaxaca with winds of 65 mph (105 km/h). The storm rapidly deteriorated to a remnant low, which persisted until dissipating on June 29. Carlos brought heavy rainfall to portions of southern Mexico, peaking at 337 mm (13.3 in) in two locations in Guerrero. Throughout its path, the storm damaged about 30,000 houses, with a monetary damage total of 86.7 million pesos. At least nine people were killed throughout the country, seven due to mudslides and two from river flooding; there was also a report of two missing fishermen.
Hurricane Rick was the third-most intense Pacific hurricane on record and the second-most intense tropical cyclone worldwide in 2009, only behind Typhoon Nida. Developing off the southern coast of Mexico on October 15, Rick traversed an area with favorable environmental conditions, favoring rapid intensification, allowing it to become a hurricane within 24 hours of being declared a tropical depression. An eye began to form during the afternoon of October 16; once fully formed, the storm underwent another period of rapid strengthening. During the afternoon of October 17, the storm attained Category 5 status on the Saffir–Simpson hurricane wind scale. Several hours later, Rick attained its peak intensity as the third-strongest Pacific hurricane on record with winds of 180 mph (290 km/h) and a barometric pressure of 906 mbar.
The 2021 Pacific hurricane season was a moderately active Pacific hurricane season, with above-average activity in terms of number of named storms, but below-average activity in terms of major hurricanes, as 19 named storms, 8 hurricanes, and 2 major hurricanes formed in all. It also had a near-normal accumulated cyclone energy (ACE). The season officially began on May 15, 2021 in the Eastern Pacific Ocean, and on June 1, 2021, in the Central Pacific in the Northern Hemisphere. The season ended in both regions on November 30, 2021. These dates historically describe the period each year when most tropical cyclogenesis occurs in these regions of the Pacific and are adopted by convention. However, the formation of tropical cyclones is possible at any time of the year, as illustrated by the formation of Tropical Storm Andres on May 9, which was the earliest forming tropical storm on record in the Eastern Pacific. Conversely, 2021 was the second consecutive season in which no tropical cyclones formed in the Central Pacific.
Tropical Storm Ileana was a small tropical cyclone that affected western Mexico in early August 2018, causing deadly flooding. The eleventh tropical cyclone and ninth named storm of the 2018 Pacific hurricane season, Ileana originated from a tropical wave that the National Hurricane Center began monitoring on July 26 as the wave left the west coast of Africa. The wave traveled across the Atlantic Ocean with no thunderstorm activity, before crossing into the Eastern Pacific Ocean early on August 4. Rapidly developing, the disturbance organized into a tropical depression on the evening of the same day. Initially, the depression was well-defined, but it soon degraded due to northerly wind shear. Despite the unfavorable conditions, the system began to strengthen on August 5, becoming Tropical Storm Ileana. A day later, on August 6, Ileana began to develop an eyewall structure as it reached its peak intensity with winds of 65 mph (100 km/h) and a pressure of 998 mbar (29.47 inHg). The storm gradually became intertwined with the nearby Hurricane John; over the next day, the circulation of John disrupted Ileana before ultimately absorbing it on August 7.
Hurricane Dolores was a powerful and moderately damaging tropical cyclone whose remnants brought record-breaking heavy rains and strong winds to California. The seventh named storm, fourth hurricane, and third major hurricane of the record-breaking 2015 Pacific hurricane season, Dolores formed from a tropical wave on July 11. The system gradually strengthened, attaining hurricane status on July 13. Dolores rapidly intensified as it neared the Baja California peninsula, finally peaking as a Category 4 hurricane on the Saffir–Simpson scale with winds of 130 mph (215 km/h) on July 15. An eyewall replacement cycle began and cooler sea-surface temperatures rapidly weakened the hurricane, and Dolores weakened to a tropical storm two days later. On July 18, Dolores degenerated into a remnant low west of the Baja California peninsula.
Hurricane Genevieve was a strong tropical cyclone that almost made landfall on the Baja California Peninsula in August 2020. Genevieve was the twelfth tropical cyclone, eighth named storm, third hurricane, and second major hurricane of the 2020 Pacific hurricane season. The cyclone formed from a tropical wave that the National Hurricane Center (NHC) first started monitoring on August 10. The wave merged with a trough of low pressure on August 13, and favorable conditions allowed the wave to intensify into Tropical Depression Twelve-E at 15:00 UTC. Just six hours later, the depression became a tropical storm and was given the name Genevieve. Genevieve quickly became a hurricane by August 17, and Genevieve began explosive intensification the next day. By 12:00 UTC on August 18, Genevieve reached its peak intensity as a Category 4 hurricane, with maximum 1-minute sustained winds of 130 mph and a minimum central pressure of 950 millibars (28 inHg). Genevieve began to weaken on the next day, possibly due to cooler waters caused by Hurricane Elida earlier that month. Genevieve weakened below tropical storm status around 18:00 UTC on August 20, as it passed close to Baja California Sur. Soon afterward, Genevieve began to lose its deep convection and became a post-tropical cyclone by 21:00 UTC on August 21, eventually dissipating off the coast of Southern California late on August 24.