The 1957 Atlantic hurricane season featured one of the longest-travelling tropical cyclones in the Atlantic basin, Hurricane Carrie. Nevertheless, the season was generally inactive, with eight tropical storms – two of which went unnamed – and three hurricanes, two of which intensified further to attain major hurricane intensity. The season officially began on June 15 and ended on November 15, though the year's first tropical cyclone developed prior to the start of the season on June 8. The final storm dissipated on October 27, well before the official end of the season. The strongest hurricane of the year was Carrie, which reached the equivalent of a Category 4 hurricane on the Saffir–Simpson hurricane scale on two separate occasions in the open Atlantic; Carrie later caused the sinking of the German ship Pamir southwest of the Azores, resulting in 80 deaths.
The 1942 Atlantic hurricane season was one of seven seasons to feature multiple hurricane landfalls in Texas. The season officially lasted from June 16, 1942, to October 31, 1942. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. A total of 11 tropical storms from 1943 are listed in the Atlantic hurricane database, with two additional tropical depressions. The first system of the year, a tropical depression, developed over the central Gulf of Mexico on June 3, while the last system, the Belize hurricane, dissipated over the Yucatán Peninsula on November 11. After the depression dissipated on June 3, the season remained dormant until the next system developed two months later. In mid-August, a hurricane struck Texas, causing about $790,000 (1942 USD) in damage.
The 1940 Atlantic hurricane season was a generally average period of tropical cyclogenesis in 1940. Though the season had no official bounds, most tropical cyclone activity occurred during August and September. Throughout the year, fourteen tropical cyclones formed, of which nine reached tropical storm intensity; six were hurricanes. None of the hurricanes reached major hurricane intensity. Tropical cyclones that did not approach populated areas or shipping lanes, especially if they were relatively weak and of short duration, may have remained undetected. Because technologies such as satellite monitoring were not available until the 1960s, historical data on tropical cyclones from this period are often not reliable. As a result of a reanalysis project which analyzed the season in 2012, an additional hurricane was added to HURDAT. The year's first tropical storm formed on May 19 off the northern coast of Hispaniola. At the time, this was a rare occurrence, as only four other tropical disturbances were known to have formed prior during this period; since then, reanalysis of previous seasons has concluded that there were more than four tropical cyclones in May before 1940. The season's final system was a tropical disturbance situated in the Greater Antilles, which dissipated on November 8.
The 1939 Atlantic hurricane season was the least active since 1930. The season had below normal activity, with only six tropical storms, of which three became hurricanes and one became a major hurricane, equivalent to Category 3 status or higher on the modern-day Saffir–Simpson scale. The first tropical cyclone formed on June 12, and the last dissipated on November 6. These dates are within the period of each year when most tropical cyclones form in the Atlantic basin.
The 1997 Pacific hurricane season was a very active hurricane season. With hundreds of deaths and hundreds of millions of dollars in damage, this was one of the deadliest and costliest Pacific hurricane seasons on record. This was due to the exceptionally strong 1997–98 El Niño event. The season 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 almost all tropical cyclones form in the northeastern Pacific Ocean.
The 1996 Pacific hurricane season had below normal tropical cyclone activity, producing 9 tropical storms, of which 5 became hurricanes, with 2 of those intensifying into major hurricanes. With an Accumulated cyclone energy (ACE) index of 53.9, the season ranks among the least intense Pacific hurricane seasons on record. It officially began May 15, 1996, in the eastern north Pacific and on June 1, 1996, in the central north Pacific. It ended on November 30, 1996. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean. The season slightly exceeded these bounds when tropical storm One-E formed on May 13.
The 2000 Pacific typhoon season marked the first year using names contributed by the World Meteorological Organization. It was a rather below-average season, producing a total of 23 tropical storms, 13 typhoons and 4 intense typhoons. The season ran throughout 2000, though typically most tropical cyclones develop between May and October. The season's first named storm, Damrey, developed on May 7, while the season's last named storm, Soulik, dissipated on January 4 of the next year.
The 1974 Pacific hurricane season featured one of the most active periods of tropical cyclones on record with five storms existing simultaneously. The season officially started May 15 in the eastern Pacific, and 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 northeast 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.
The 1992 Pacific typhoon season is the fourth consecutive above-average season, producing 31 tropical storms, 16 typhoons and five super typhoons. It had no official bounds; it ran year-round in 1992. Despite this, 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.
The 1971 Pacific typhoon season was an extremely active season that featured the second highest typhoon count on record. It has no official bounds; it ran year-round in 1971, 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.
The 1966 Pacific typhoon season was an active season, with many tropical cyclones having severe impacts in China, Japan, and the Philippines. Overall, there were 49 tropical depressions declared officially or unofficially, of which 30 officially became named storms; of those, 20 reached typhoon status, while 3 further became super typhoons by having winds of at least 240 km/h (150 mph). Throughout the year, storms were responsible for at least 997 fatalities and $377.6 million in damage; however, a complete record of their effects is unavailable.
The 1960 Pacific typhoon season had no official bounds; it ran year-round in 1960, 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.
The 1958 Pacific typhoon season was an event in the annual cycle of tropical cyclone formation. The season had no official bounds, but tropical cyclones in the Western Pacific Ocean normally develop between May and October. The season was below average in storms, with only twenty-three forming. However, all but two of those storms developed into typhoons, resulting in a well above-average number of typhoons, and a very high ACE figure of 445.8 units. In addition, there were also nine tropical storms tracked only by the JMA. The season began very early, with a very rare super typhoon in January, Typhoon Ophelia, and ended in early December with Typhoon Olga. It also featured Typhoon Ida, the strongest storm ever recorded at that time.
The 1957 Pacific typhoon season has no official bounds; it ran year-round in 1957, 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.
The 1956 Pacific typhoon season has no official bounds; it ran year-round in 1956, 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.
The 1978–79 Australian region cyclone season was the only season in which a reconnaissance aircraft flew into a tropical cyclone. Operationally, Australia's Bureau of Meteorology (BOM) tracked eleven tropical cyclones, while two additional systems were later added to the United States's Joint Typhoon Warning Center (JTWC) best track. Prior to 1985, the Australian region basin was defined as in the southern hemisphere between 80°E and 160°E, with the modern day season boundaries ranging from 1 November to 30 April of the following year. The first storm, an unnamed system, developed on 19 November 1978. The final cyclone, Kevin, dissipated by 12 May 1979. Tropical cyclones in this area were monitored by three Tropical Cyclone Warning Centres (TCWCs): the BOM in Perth, Darwin, and Brisbane.
Typhoon Forrest, known in the Philippines as Typhoon Ising, was the fastest-intensifying tropical cyclone on record, with its minimum barometric pressure dropping 100 mbar (3.0 inHg) from September 22 to September 23, in less than a day. Forrest formed from a tropical disturbance far from land in the western Pacific Ocean. On September 20, the system was classified as a tropical storm, and thereafter began to intensify. The next day, Forrest reached typhoon status, and the intensification process accelerated. The storm prudently strengthened on September 22, and the following morning, attained peak intensity following a pressure drop of 100 mbar (3.0 inHg) in slightly less than 24 hours. Thereafter, Forrest began to weaken slowly as it moved northwest. Approaching Japan, Super Typhoon Forrest first hit Okinawa on September 27. Nearby, a tornado hit Inza Island, destroying 26 homes and injuring 26 people. Forrest then moved north, impaling the Japanese archipelago before transitioning into an extratropical cyclone on September 28, before eventually dissipating on October 4. The torrential rainfall caused by the typhoon triggered deadly landslides and flooding across Japan. In all, the typhoon killed at least 21 people, left 17 listed as missing, and injured 86. Forrest flooded 46,000 homes in muddy water, over 100 dwellings were destroyed, and 2,560 people were rendered as homeless. Seven flights were called off and 27,000 people were stranded. In addition, 67 bridges and 818 roads were damaged.
Hurricane Patricia was the most intense tropical cyclone ever recorded in the Western Hemisphere and the second-most intense worldwide in terms of barometric pressure. It also featured the highest one-minute maximum sustained winds ever recorded in a tropical cyclone. Originating from a sprawling disturbance near the Gulf of Tehuantepec in mid-October 2015, Patricia was first classified a tropical depression on October 20. Initial development was slow, with only modest strengthening within the first day of its classification. The system later became a tropical storm and was named Patricia, the twenty-fourth named storm of the annual hurricane season. Exceptionally favorable environmental conditions fueled explosive intensification on October 22. A well-defined eye developed within an intense central dense overcast and Patricia grew from a tropical storm to a Category 5 hurricane in just 24 hours—a near-record pace. The magnitude of intensification was poorly forecast and both forecast models and meteorologists suffered from record-high prediction errors.
