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Type of cyclone
Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones are low-pressure areas which, along with anticyclones, drive the weather
Extratropical_cyclone
Large scale rotating air mass
and Neptune. Cyclogenesis is the process of cyclone formation and intensification. Extratropical cyclones begin as waves in large regions of enhanced
Cyclone
October 2022 Southern Ocean cyclone, also referred to as the Peter I storm or EC2022 was the most intense extratropical cyclone on record. Forming as a weak
October 2022 Southern Ocean cyclone
October_2022_Southern_Ocean_cyclone
Tropical cyclone that has lost tropical characteristics
former tropical cyclone undergoing extratropical transition or a tropical cyclone degenerating into a remnant low. A tropical cyclone degenerating into
Post-tropical_cyclone
Cyclonic storm with tropical and extratropical characteristics
A subtropical cyclone is a weather system that has some characteristics of both tropical and extratropical cyclones. As early as the 1950s, meteorologists
Subtropical_cyclone
Nor'easter and Category 1 Atlantic hurricane in 1991
lasted from October 28 to November 2, 1991. While initially an extratropical cyclone, it absorbed Hurricane Grace to its south, later evolving into a
1991_Perfect_Storm
Extratropical cyclone in the Bering Sea
Sea cyclone (also referred to as Post-Tropical Cyclone Nuri by the U.S. government) was the most intense extratropical cyclone (also a bomb cyclone) ever
November 2014 Bering Sea cyclone
November_2014_Bering_Sea_cyclone
Rapidly deepening extratropical cyclonic low-pressure area
meteorological bomb, explosive development, bomb cyclone, or bombogenesis) is the rapid deepening of an extratropical cyclonic low-pressure area. The change in pressure
Explosive_cyclogenesis
Development or strengthening of cyclonic circulation in the atmosphere
a warm core. Extratropical cyclones form as waves along weather fronts before occluding later in their life cycle as cold core cyclones. Mesocyclones
Cyclogenesis
The effects of tropical cyclones in Europe and their extratropical remnants include strong winds, heavy rainfall, and in rare instances, tornadoes or snowfall
List of European tropical cyclones
List_of_European_tropical_cyclones
Prevailing winds from the west
degrees) and trend towards the poles and steer extratropical cyclones in this general manner. Tropical cyclones which cross the subtropical ridge axis into
Westerlies
1000-km-order method of measuring weather systems
to a horizontal scale typical of mid-latitude depressions (e.g. extratropical cyclones). Most high- and low-pressure areas seen on weather maps (such as
Synoptic_scale_meteorology
government financial aid for farmers. July 7 - An exceptionally deep extratropical cyclone tracks across the South Atlantic Ocean, bringing destructive, hurricane-force
Weather_of_2026
Pacific typhoon in 1979
southern Japan on October 19, and became an extratropical cyclone shortly after its landfall. The system's extratropical remnants continued moving east-northeastward
Typhoon_Tip
Category 4 Atlantic hurricane in 2022
intensity, Fiona quickly transitioned into a large and powerful extratropical cyclone and struck Nova Scotia with sustained winds of 100 mph (155 km/h)
Hurricane_Fiona
Category 4 South Pacific cyclone in 1988
Severe Tropical Cyclone Bola was one of the costliest cyclones in the history of New Zealand, causing severe damage as an extratropical cyclone when it passed
Cyclone_Bola
Type of cyclone occurring in the northern Atlantic coast of North America
A nor'easter (also northeaster; see below) is a large-scale extratropical cyclone in the western North Atlantic Ocean. The name derives from the direction
Nor'easter
Mediterranean tropical-like cyclone in 2026
Mediterranean in March 2026. The storm was first identified as a cold-core extratropical cyclone and, on 15 March, was named Samuel by National Meteorological Service
Storm_Samuel
several hours before becoming extratropical about 320 mi (515 km) south of Sable Island, Nova Scotia. The extratropical cyclone continued northeastward until
2025 Atlantic hurricane season
2025_Atlantic_hurricane_season
Category 1 Atlantic hurricane in 2019
the larger extratropical storm. On October 25, the embedded cyclone developed into a subtropical cyclone, receiving the name Pablo. The cyclone continued
Hurricane_Pablo
Pacific Northwest windstorm
Freda weakened into a tropical storm, before transitioning into an extratropical cyclone on the next day. On October 11, Freda turned eastward and accelerated
Columbus_Day_storm_of_1962
Leading edge of a cooler mass of air
pronounced surface trough of low pressure. It often forms behind an extratropical cyclone (to the west in the Northern Hemisphere, to the east in the Southern)
Cold_front
Pacific typhoon in 2025
Halong was a powerful tropical cyclone that affected Japan before affecting western Alaska as an extratropical cyclone in early October 2025. The twenty-second
Typhoon_Halong_(2025)
Center of a tropical cyclone
structure to tropical cyclones, featuring a clear eye surrounded by an eyewall and bands of rain and snow. Extratropical cyclones are areas of low pressure
Eye_(cyclone)
Hurricane-like storms in the Mediterranean Sea
cyclone European windstorm (fully extratropical) South Atlantic tropical cyclone Subtropical Cyclone Katie Subtropical Cyclone Lexi Subtropical Storm 96C Tropical
Mediterranean tropical-like cyclone
Mediterranean_tropical-like_cyclone
Category 2 Atlantic hurricane in 2009
winds of 105 mph (170 km/h). Hurricane Ida weakened and became an extratropical cyclone in the northern Gulf of Mexico, before spreading across the southeastern
Hurricane_Ida_(2009)
lasted until 1 February, when the cyclone became extratropical. On 8 March 2010, a previously extratropical cyclone developed tropical characteristics
List of South Atlantic tropical and subtropical cyclones
List_of_South_Atlantic_tropical_and_subtropical_cyclones
Damaging and Deadly South Pacific cyclone in 2026
MetService's area of responsibility, which it was reclassified as an extratropical cyclone. At the same time, the JTWC classified it as a subtropical storm
Cyclone_Urmil_(2026)
Unusual storm system in 1996
The 1996 Lake Huron cyclone, commonly referred to as Hurricane Huron and Hurroncane, was an extremely rare, strong cyclonic storm system that developed
1996_Lake_Huron_cyclone
and 2, and Cyclone Narelle formed March 17. A week after Narelle became extratropical, Cyclone Maila formed. It was the first tropical cyclone in TCWC Port
Tropical_cyclones_in_2026
Category 5 Australian region cyclone in 2026
Category 3 cyclone on the Australian scale. Narelle weakened into a remnant low overnight, eventually becoming a broad extratropical cyclone south of Australia
Cyclone_Narelle_(2026)
Pacific severe tropical storm in 2026
morning local time, Jangmi had completed its transition into an extratropical cyclone, and ultimately ceased to exist as a weather system on June 6. Damage
Tropical_Storm_Jangmi_(2026)
Meteorological phenomenon involving two cyclones circling each other
can cause the development of a larger cyclone or cause two cyclones to merge into one. Extratropical cyclones typically engage in binary interaction
Fujiwhara_effect
Category 5 Atlantic hurricane in 1989
accelerated north over the Eastern United States, transitioning into an extratropical cyclone on September 23 before it was last noted in the far northern Atlantic
Hurricane_Hugo
several tropical cyclones. Due to the state's high northern latitude, tropical cyclones influence Alaska as remnant extratropical cyclones and their impacts
List of Alaska tropical cyclones
List_of_Alaska_tropical_cyclones
Category 5 Atlantic hurricane in 2018
into an extratropical cyclone over southern Virginia late on October 11. Michael subsequently strengthened into a powerful extratropical cyclone and eventually
Hurricane_Michael
Category 4 Atlantic hurricane in 1958
weakened, and transitioned into an extratropical cyclone as it passed over Newfoundland on September 29. Helene's extratropical remnants traversed eastwards
Hurricane_Helene_(1958)
Rapidly rotating storm system
frequently, an extratropical cyclone can transform into a subtropical storm, and from there into a tropical cyclone. From space, extratropical storms have
Tropical_cyclone
Category 4 Atlantic hurricane
Hurricane Kirk, known as Storm Kirk while extratropical, was a large and powerful tropical cyclone that caused significant damage in portions of Western
Hurricane_Kirk_(2024)
Category 5 Pacific hurricane and typhoon in 2006
and northward, and by September 6, it had transitioned into an extratropical cyclone. The remnants of Ioke accelerated northeastward and ultimately crossed
Hurricane_Ioke
evening, Higos completed its extratropical transition, and shortly after, it was absorbed into another extratropical cyclone system to the north. On June
2026_Pacific_typhoon_season
Thunderstorm during which there is snowfall
in regions of strong upward motion within the cold sector of an extratropical cyclone. Thermodynamically, it is not different from any other type of thunderstorm
Thundersnow
Tropical cyclone season
underwent extratropical transition, and ultimately dissipated later that day as it was absorbed into another extratropical cyclone. Cyclone Jenna crossed
2025–26 South-West Indian Ocean cyclone season
2025–26_South-West_Indian_Ocean_cyclone_season
Category 4 Atlantic hurricane in 2010
Newfoundland. The remnants of Igor were later absorbed by another extratropical cyclone over the Labrador Sea on September 23. While the hurricane was over
Hurricane_Igor
Category 4 Atlantic hurricane in 1963
northeastward, becoming an extratropical cyclone on October 12. Due to its slow movement across Cuba, Flora is the wettest known tropical cyclone for Cuba, Haiti
Hurricane_Flora
Cyclone season in the Southwest Indian Ocean
Indian Ocean cyclone seasons: 1969, 1970 "Global tropical/Extratropical cyclone climatic atlas". "Global tropical/Extratropical cyclone climatic atlas"
1969–70 South-West Indian Ocean cyclone season
1969–70_South-West_Indian_Ocean_cyclone_season
North American Bomb Cyclone in 2024
A powerful extratropical cyclone developed c. November 18, 2024, in the Northeast Pacific and struck the Western United States and Western Canada. The
November 2024 Northeast Pacific bomb cyclone
November_2024_Northeast_Pacific_bomb_cyclone
1993 Atlantic extratropical cyclone
The Braer Storm was the most intense extratropical cyclone ever recorded over the northern Atlantic Ocean. Developing as a weak frontal wave on 8 January
Braer_Storm
1984 cyclone impacting Florida, United States
the United States' Thanksgiving Day, November 22, 1984. A deep extratropical cyclone located just off the shore of Florida led to significant beach erosion
Late_November_1984_nor'easter
Extratropical cyclone in Scotland in 2011
Hurricane Bawbag, also known as Cyclone Friedhelm was an intense extratropical cyclone which brought hurricane-force winds to Scotland at the beginning
Hurricane_Bawbag
Category 4 Atlantic hurricane
began losing tropical characteristics and transitioned into an extratropical cyclone at 0000 UTC on August 22, while located about 325 miles (525 km)
1899_San_Ciriaco_hurricane
Pacific typhoon in 2022
Merbok tracked northward, becoming an extratropical cyclone early on September 15. As an extratropical cyclone, it deepened before entering the Bering
Typhoon_Merbok_(2022)
Newfoundland as an extratropical storm, resulting in major damage and at least 50 offshore deaths. September 26, 1937: The extratropical remnant of a hurricane
List_of_hurricanes_in_Canada
Category 5-equivalent Atlantic hurricane in 1944
September 15. The storm eventually became an extratropical cyclone, moving northeast, and merged with another extratropical system off Greenland on September 16
1944_Great_Atlantic_hurricane
Category 5 Pacific hurricane in 1997
unusually high latitude of 41.8°N before transitioning into an extratropical cyclone. The remnants persisted for more than a week as they tracked towards
Hurricane_Guillermo_(1997)
Pacific hurricane and typhoon in 2014
International Date Line again, until they were absorbed by another extratropical cyclone on August 15. The National Hurricane Center (NHC) began to monitor
Hurricane_Genevieve_(2014)
Category 3 Atlantic hurricane in 1991
New Brunswick a few hours later, where it transitioned into an extratropical cyclone. By August 21, the remnants of Bob crossed Newfoundland and re-emerged
Hurricane_Bob
Category 5 Atlantic hurricane
winds to the islands. Lorenzo became fully extratropical by 12:00 UTC on 2 October. The extratropical cyclone continued moving quickly northeastward, maintaining
Hurricane_Lorenzo_(2019)
Category 2 South Atlantic hurricane in 2004
combination of the two led to a slow transition from an extratropical cyclone to a subtropical cyclone by 24 March. The storm continued to obtain tropical
Hurricane_Catarina
Category 4 Atlantic hurricane in 2025
Gabrielle while extratropical, was a powerful tropical cyclone that threatened Bermuda, and later affected the Azores as a post-tropical cyclone in September 2025
Hurricane_Gabrielle_(2025)
Meteorological model describing the development of cyclones
The older of the models of extratropical cyclone development is known as the Norwegian cyclone model, developed during and shortly after World War I within
Norwegian_cyclone_model
Category 5 Atlantic hurricane in 1992
northeastward after landfall and rapidly lost its intensity, becoming an extratropical cyclone on August 28, and merging with the remnants of Hurricane Lester
Hurricane_Andrew
transitioning into an extratropical cyclone on October 31, almost a month before the official end. Although several tropical cyclones impacted land, only
2018 Atlantic hurricane season
2018_Atlantic_hurricane_season
Category 3 Atlantic hurricane in 2021
hurricane, becoming an extratropical cyclone later that same day. On September 13, the storm was absorbed by a larger extratropical cyclone near Greenland. Larry
Hurricane_Larry
Pacific typhoon in 1983
its extratropical transition, with the JTWC issuing their final advisory on the system early on the next day. After becoming an extratropical cyclone the
Typhoon_Forrest
Pacific typhoon in 2018
early on September 4. Jebi quickly weakened over land and became an extratropical cyclone later that day over the Sea of Japan. Its remnants moved over the
Typhoon_Jebi
Category 1 Atlantic hurricane in 2008
South Carolina, before moving up the Eastern Seaboard to become an extratropical cyclone as it moved by New England into Atlantic Canada early on September 7
Hurricane_Hanna_(2008)
Atlantic nor'easter and tropical storm
the northern Atlantic Ocean in early November 2021. The powerful extratropical cyclone affected much of the East Coast, causing significant flooding in
October_2021_nor'easter
Narrow airstream of strong winds in cyclones
surface in some extratropical cyclones. When present, sting jets produce some of the strongest surface-level winds in extratropical cyclones and can generate
Sting_jet
Category 5 Atlantic hurricane in 2005
accelerating northeastward. By October 26, Wilma transitioned into an extratropical cyclone southeast of Nova Scotia. Early in Wilma's duration, flooding and
Hurricane_Wilma
Category 1 Atlantic hurricane in 2014
1 hurricane. A colder environment transitioned Cristobal into an extratropical cyclone on August 29, but it retained much of its strength as it sped across
Hurricane_Cristobal
November 2021 storm in Europe
Storm Arwen was a powerful extratropical cyclone that was part of the 2021–22 European windstorm season. It affected the United Kingdom, Ireland and France
Storm_Arwen
2012 Extratropical cyclone in Arctic
Cyclone, or "Great Arctic Cyclone of 2012", was a powerful extratropical cyclone that was centered on the Arctic Ocean in early August 2012. Cyclones
Great_Arctic_Cyclone_of_2012
Category 4 Pacific hurricane and typhoon in 2015
tropical cyclone that traveled more than 4,000 miles (6,400 kilometers) from its formation point southeast of the Hawaiian Islands to its extratropical transition
Hurricane_Kilo
Category 5 Pacific hurricane in 2026
Hurricane Polo is a strong tropical cyclone currently threatening the Baja California Peninsula. The eighteenth named storm, seventh hurricane, fifth
Hurricane_Polo
Dangerous meteorological phenomena
thunderstorms, downbursts, tornadoes, waterspouts, tropical cyclones, and extratropical cyclones. Regional and seasonal phenomena include blizzards, snowstorms
Severe_weather
Category 4 Pacific hurricane in 1978
as it turned to the northwest over cooler waters, and became an extratropical cyclone on July 28 to the northeast of Midway Island. Swells from Fico,
Hurricane_Fico
Pacific tropical storm in 1991
paralleled the southeastern Japan coastline before transitioning into an extratropical cyclone. Overall, 12 people were killed and 23 others were injured. A total
Tropical_Storm_Luke
Type of extratropical cyclone
Northwest windstorms, sometimes colloquially known as Big Blows, are extratropical cyclones which form in the Pacific basin, and affect land areas in the Pacific
Pacific_Northwest_windstorm
Short-term state of the atmosphere
the jet stream. Weather systems in the middle latitudes, such as extratropical cyclones, are caused by instabilities of the jet streamflow. Because Earth's
Weather
Category 5 Atlantic hurricane in 2025
Bermuda. Melissa completed its transition to a hurricane-force extratropical cyclone that day, dissipating fully on November 1 as it opened into a trough
Hurricane_Melissa
Category 1 Atlantic hurricane
Hurricane Leslie (known as Storm Leslie or Cyclone Leslie while extratropical) was the strongest post-tropical cyclone to strike the Iberian Peninsula since
Hurricane_Leslie_(2018)
then later made multiple landfalls in Atlantic Canada as a strong extratropical cyclone. Later that month, Tropical Storm Ophelia made landfall in North
2023 Atlantic hurricane season
2023_Atlantic_hurricane_season
Category 1 Atlantic hurricane in 1956
into an extratropical cyclone on September 25. It was the first hurricane to affect oil refining in the Gulf of Mexico. The tropical cyclone led to flooding
Hurricane_Flossy_(1956)
Pacific typhoon in 2024
while beginning its extratropical transition. By November 1, the JMA reported that Kong-rey had transitioned into an extratropical low as it moved north-northeastward
Typhoon_Kong-rey_(2024)
Tropical cyclone that forms in the Atlantic Ocean
Sandy was a Category 3 hurricane that later transitioned into an extratropical cyclone before hitting New Jersey, causing $68.7 billion in damage. Costliest
Atlantic_hurricane
English extratropical cyclone
The Great storm of 1703 was a destructive extratropical cyclone that struck south Wales and central and southern England on 26 November 1703. High winds
Great_storm_of_1703
Global tropical/extratropical cyclone climatic atlas. 1996. Retrieved February 12, 2019. Sébastien Langlade. The SouthWest Indian Ocean cyclone basin (PDF)
Tropical cyclones in the Mascarene Islands
Tropical_cyclones_in_the_Mascarene_Islands
2026 windstorm over northwestern Europe
Goretti, known as Storm Elli in Germany, was a powerful and damaging extratropical cyclone that affected parts of Western Europe. The seventh named (using
Storm_Goretti
1941 European windstorm in Southwestern Europe
cyclone, also known as Cyclone 41, was a deadly and catastrophic extratropical cyclone that affected Portugal and Spain severely in 1941. The cyclone
1941_Iberia_cyclone
three weeks later than when the first one typically forms. As an extratropical cyclone it became the strongest storm in Canadian history, as measured by
2022 Atlantic hurricane season
2022_Atlantic_hurricane_season
Area with air pressures lower than adjacent areas
are cold-core polar cyclones and extratropical cyclones which lie on the synoptic scale. Warm-core cyclones such as tropical cyclones, mesocyclones, and
Low-pressure_area
North American bomb cyclone in 2021
An extremely powerful extratropical cyclone began in late October 2021 in the Northeast Pacific and struck the Western United States and Western Canada
October 2021 Northeast Pacific bomb cyclone
October_2021_Northeast_Pacific_bomb_cyclone
Pacific typhoon in 1959
extratropical cyclone. Consequently, the JMA officially reclassified the system as an extratropical storm at 1200 UTC that day. Vera's extratropical remnants
Typhoon_Vera
the final system, also a tropical depression, was absorbed by an extratropical cyclone well south of Newfoundland on October 22. Of the six tropical storms
1915 Atlantic hurricane season
1915_Atlantic_hurricane_season
Category 5 Pacific hurricane in 2015
Hurricane Patricia was the most powerful tropical cyclone on record worldwide in terms of maximum sustained winds. It was also the second-most intense
Hurricane_Patricia
Category 3 Atlantic hurricane in 2012
the damage it caused was after it became a Category 1–equivalent extratropical cyclone off the coast of the Northeastern United States. Sandy developed
Hurricane_Sandy
Category 4 Atlantic hurricane in 1957
as it reached higher latitudes, the storm transitioned into an extratropical cyclone on September 23, prior to affecting areas of the British Isles,
Hurricane_Carrie
Type of Pacific seasonal cyclone
direction. They are mainly cold core cyclones, which places them in the extratropical cyclone rather than the subtropical cyclone category. Hawaii typically experiences
Kona_storm
Atlantic tropical cyclone
extratropical cyclone. The extratropical remnants tracked up the East Coast of the United States, and were absorbed by a larger extratropical cyclone
Tropical_Storm_Barry_(2007)
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EXTRATROPICAL CYCLONE
EXTRATROPICAL CYCLONE
EXTRATROPICAL CYCLONE
EXTRATROPICAL CYCLONE
EXTRATROPICAL CYCLONE
EXTRATROPICAL CYCLONE
EXTRATROPICAL CYCLONE
EXTRATROPICAL CYCLONE
EXTRATROPICAL CYCLONE
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