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 1924 Cuba hurricane is the first officially recorded Category 5 Atlantic hurricane on the Saffir–Simpson scale (SSHWS), as well as the first Atlantic hurricane with sustained wind speeds of at least 135, 140, and 145 knots. It is also one of two hurricanes to make landfall on Cuba at Category 5 intensity, the other being Hurricane Irma in 2017 – both are also tied for the strongest Cuban landfall in terms of maximum sustained winds. The hurricane formed on October 14 in the western Caribbean, slowly organizing as it tracked northwestward. By October 16, the storm attained hurricane status to the east of the Yucatán Peninsula, and subsequently executed a small counterclockwise loop. On Friday, October 18, the hurricane intensified rapidly and, on the next day, reached an estimated peak intensity of 165 mph (266 km/h). Shortly thereafter, it struck extreme western Cuba at peak intensity, becoming the strongest hurricane on record to hit the country. Later the hurricane weakened greatly, striking southwestern Florida with winds of 90 mph (140 km/h) in a sparsely populated region. While crossing the state it weakened to tropical storm status, and after accelerating east-northeastward, it was absorbed by a cold front on October 23, to the south of Bermuda.
The 2015 Pacific hurricane season is 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 Northeast Pacific Ocean between the International Date Line 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 290 units. The season 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 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.
Mediterranean tropical-like cyclones, often referred to as Mediterranean cyclones or Mediterranean hurricanes, and informally as medicanes, are meteorological phenomena occasionally observed over the Mediterranean Sea. On a few rare occasions, some storms have been observed reaching the strength of a Category 1 hurricane, on the Saffir–Simpson scale, and a storm in 2020 was recorded reaching Category 2 intensity. The main societal hazard posed by medicanes is not usually from destructive winds, but through life-threatening torrential rains and flash floods.
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.
Typhoon Clara, known in the Philippines as Typhoon Rubing, left flooding in the northern Philippines and southern China during September 1981. An area of disturbed weather was first detected on September 11 near Ponape. After moving westward, the system gradually became better organized and thunderstorm activity increased. On September 16, the system attained tropical storm status. Two days later, Clara attained typhoon intensity and subsequently began to deepen at a faster rate. On September 19, Clara reached maximum intensity, before making landfall along the northern tip of Luzon. Clara steadily weakened after interacting with land, but by late on September 20, Clara leveled off in intensity over the South China Sea. The next day, Clara moved ashore to the east-northeast of Hong Kong while still at typhoon intensity before rapidly dissipating over land.
The 2020 Atlantic hurricane season was the most active Atlantic hurricane season on record, in terms of number of systems. It featured a total of 31 tropical or subtropical cyclones, with all but one cyclone becoming a named storm. Of the 30 named storms, 14 developed into hurricanes, and a record-tying seven further intensified into major hurricanes. It was the second and final season to use the Greek letter storm naming system, the first being 2005, the previous record. Of the 30 named storms, 11 of them made landfall in the contiguous United States, breaking the record of nine set in 1916. During the season, 27 tropical storms established a new record for earliest formation date by storm number. This season also featured a record ten tropical cyclones that underwent rapid intensification, tying it with 1995, as well as tying the record for most Category 4 hurricanes in a singular season in the Atlantic Basin. This unprecedented activity was fueled by a La Niña that developed in the summer months of 2020, continuing a stretch of above-average seasonal activity that began in 2016. Despite the record-high activity, this was the first season since 2015 in which no Category 5 hurricanes formed.
The 1940 Louisiana hurricane caused record flooding across much of the Southern United States in August 1940. The second tropical cyclone and hurricane of the annual hurricane season, it formed from a frontal low off the west coast of Florida on August 3. Initially a weak disturbance, it moved generally westward, slowly gaining in intensity. Early on August 4, the depression attained tropical storm intensity. Ships in the vicinity of the storm reported a much stronger tropical cyclone than initially suggested. After reaching hurricane strength on August 5 south of the Mississippi River Delta, the storm strengthened further into a Category 2 hurricane with maximum sustained winds of 100 mph and a minimum barometric pressure of 972 mbar at 0600 UTC on August 7. The hurricane moved ashore near Sabine Pass, Texas later that day at peak strength. Once inland, the storm executed a sharp curve to the north and quickly weakened, degenerating into a tropical storm on August 8 before dissipating over Arkansas on August 10.
Tropical Storm Rolf, also known as Tropical Storm 01M, was an unusual Mediterranean tropical storm that brought flooding to Italy, France, Spain, and Switzerland in November 2011. Rolf originated from an extratropical system near western France on 4 November. Despite the generally unfavorable conditions in the Mediterranean Sea, Rolf transitioned into a subtropical depression on 7 November, before becoming a tropical storm later that day. On 8 November, Rolf reached its peak intensity, with 1-minute sustained winds peaking at 85 km/h (53 mph) and a minimum central pressure of 991 mb (29.3 inHg). During the next day, the storm made landfall on the island of Île du Levant, in France, and soon afterward, near Hyères in southeastern France. Following its second landfall, Rolf quickly weakened and dissipated on 10 November. Rolf was the first tropical cyclone ever to be officially monitored by the NOAA in the Mediterranean Sea.
Typhoon Khanun, known in the Philippines as Typhoon Kiko, was the strongest tropical cyclone to make landfall on Zhejiang Province since Wanda in 1956. Khanun developed from an area of convection east-southeast of Yap on September 5, thereafter tracking northwestward. The precursor reached tropical storm status on September 7 and typhoon intensity the next day. The tropical cyclone reached its peak intensity on September 10 with winds estimated at 155 km/h (100 mph) and a minimum barometric pressure of 945 mbar. After weakening slightly, Khanun moved ashore Zhejiang Province the next day, weakening further as it tracked over land. After recurving into the Yellow Sea on September 12, Khanun became extratropical; these remnants continued to track into the open North Pacific before they were last noted on September 16.
Cyclone Qendresa, also known as Medicane Qendresa, was one of the most intense Mediterranean tropical-like cyclones on record, which struck Malta and the Italian island of Sicily in 2014. The storm formed on 5 November and rapidly intensified two days later, reaching peak intensity on 7 November, due to a cold-core low aloft. Qendresa directly hit Malta in the afternoon and then crossed the eastern coast of Sicily on 8 November. Later, the cyclone weakened significantly and dissipated over Crete on 11 November. Academic sources indicate that Qendresa transitioned into a subtropical cyclone, prior to reaching peak intensity. Qendresa caused three fatalities, and at least $250 million in damages in Italy.
Cyclone Julia brought heavy flooding and hurricane conditions to parts of Europe, the Mediterranean region, and North Africa in February 2012. The second tropical or subtropical cyclone, second named storm, and the strongest storm of the 2011–12 Mediterranean hurricane season, Julia originated from an extratropical system that split off from its parent storm, in the western Mediterranean Sea on February 2. Despite the unfavorable conditions in the Mediterranean Sea, Julia strengthened into a powerful subtropical cyclone, with winds peaking at 61 mph (98 km/h), and a minimum pressure of 982 mbar (29.0 inHg) on February 6. On February 7, the storm made landfall on the Peloponnesian Peninsula, and eventually dissipated over Turkey. Cyclone Julia caused at least $6.4 million in damages, and resulted in at least 12 deaths. The storm also worsened the effects of the Early 2012 European cold wave across Europe and North Africa.
Cyclone Numa, also known as Medicane Numa, was a Mediterranean tropical-like cyclone with the properties of a subtropical cyclone. Numa formed on 11 November 2017 west of the British Isles, out of the extratropical remnants of Tropical Storm Rina, the seventeenth named storm of the 2017 Atlantic hurricane season. Subsequently, on 17 November, Numa acquired subtropical characteristics before reaching peak intensity on 18 November, becoming a rare "medicane". After making landfall in Greece on 18 November, Numa rapidly weakened, and was later absorbed into another extratropical storm on 20 November. The flooding triggered by Numa became the worst weather event Greece had experienced since 1977, and the storm caused an estimated $100 million in damages in Europe.
Typhoon Alice was a typhoon that brought severe flooding to Guam during the latter part of the 1953 Pacific typhoon season. The system was first tracked near the Marshall Islands on October 11 by the Fleet Weather Central (FWC) as a tropical storm, and the Central Meteorological Observatory (CMO) as a tropical depression. The CMO upgraded Alice to a tropical storm east of Guam on October 14. One day later, and the FWC reported that the storm had intensified to 65 knots, equivalent to a Category 1 typhoon on the Saffir–Simpson scale. Near Iwo Jima, the typhoon traveled northeastwards, reaching its peak of 100 kn late on October 18. Alice then steadily weakened down to a tropical storm on October 20. The storm became extratropical on October 23 near the International Date Line, and both agencies ceased tracking the cyclone.
There were 30 tropical cyclones in the western Pacific Ocean in 1931, including 19 typhoons, as well as one that developed in December of the previous year. The most significant typhoon was one that struck eastern China near Shanghai in the midst of the country's worst floods on record; heavy rainfall caused levees to collapse along the Grand Canal, killing an estimated 300,000 people, including about 2,000 people overnight in the city of Gaoyou.
Cyclone Ianos, also known as Medicane Ianos, was a rare medicane that impacted the eastern Mediterranean on 17 and 18 September 2020, especially Greece. Ianos developed from an area of low pressure over the Gulf of Sidra that quickly began tropical cyclogenesis while moving over warm waters. After receiving various names from different meteorological centers, the storm, dubbed Ianos by the METEO unit of the National Observatory of Athens, rapidly intensified while moving northeastward. After scraping Italy, the storm went on to strike Malta and Crete with tropical storm-force winds. Despite land interaction, the small cyclone reached its peak intensity of 159 km/h (99 mph) with wind gusts up to 195 km/h (121 mph) on 18 September, equivalent to a Category 2 hurricane on the Saffir–Simpson scale, immediately before making landfall in southwestern Greece. After landfall, Ianos turned back out to sea and moved south-southeastward, before dissipating on 21 September.
During 1996, tropical cyclones formed within seven different tropical cyclone basins, located within various parts of the Atlantic, Pacific, and Indian Oceans. During the year, a total of 139 tropical cyclones formed in bodies of water known as tropical cyclone basins. 90 of them were named by various weather agencies when they attained maximum sustained windS of 35 knots. The strongest tropical cyclone of the year was Cyclone Daniella, peaking with a pressure of 915 hPa (27.02 inHg) in the open waters of the Indian Ocean. Hurricane Fran and Typhoon Herb tie for the costliest storm of the year, both with a damage cost of $5 billion. The deadliest tropical cyclone of the year was the 1996 Andhra Pradesh cyclone, which was blamed for over 1,000 fatalities as it directly affected the state of Andhra Pradesh in India. Five Category 5 tropical cyclones were formed in 1996. The accumulated cyclone energy (ACE) index for the 1996, as calculated by Colorado State University was 960 units.
Cyclone Apollo, also known as Medicane Nearchus, was a powerful Mediterranean tropical-like cyclone that affected many countries on the Mediterranean coast, especially Italy, in 2021. The storm killed 7 people total, due to flooding from the cyclone, in the countries of Tunisia, Algeria, Malta, and Italy, where the worst of the effects have been felt, especially on the island of Sicily. Damage estimates by the Aon Benfield were set at more than $245 million.
Storm Ballos was a notable extratropical cyclone that caused devastating floods across Greece during mid-October 2021. The second storm to be officially named in conjunction with the naming list of the former, Israel and Cyprus, Ballos formed on 13 October over the Mediterranean Sea from the combination of a frontal system and a circulation which first developed, two days earlier. It then moved over Greece, before proceeding into the Aegean Sea, where it slowly weakened and dissipated by 16 October. However, despite the HNMC naming the system, the Free University of Berlin (FUB) didn’t assign any name on it along with its weather maps.
