2024-25 Atlantic Winter Cyclone Season (HurricaneKolby)
| 2024-25 Atlantic Winter Cyclone Season | |
 | |
| Seasonal boundaries | |
|---|---|
| First system formed | November 14, 2024 |
| Last system dissipated | April 28, 2025 |
| Strongest storm | |
| Name | Kylie |
| • Maximum winds | 370 km/h (230 mph) (1-minute sustained) |
| • Lowest pressure | 878 mbar (hPa; 25.93 inHg) |
| Seasonal statistics | |
| Winter depressions | 22 |
| Winter storms | 20 |
| Winter cyclones | 13 |
| Major winter cyclones | 6 |
| Extreme winter cyclones | 1 |
| ACE | ~210 |
| Total fatalities | 242 |
| Total damage | $93 billion (2025-26 USD) |
2024-25 | |
The 2024-25 Atlantic Winter Cyclone Season was a hyperactive, and deadly Winter Cyclone Season. It started on December 1 and ended on April 30. Winter Cyclones are a type of Winter Cyclone that form in the subtropics and are fueled by colder temperatures (similar to how Tropical Cyclones are fueled by warmer temperatures), and produce snow instead of the typical rain. However, a few winter cyclones have been recorded to have other types of precipitation, including rain, mostly in stronger storms, notably Winter Cyclone Evelyn. Winter Cyclones are deadlier than regular tropical cyclones due to extreme cold. Winter Cyclones use the same scale as tropical cyclones. The season started off with two off-season winter cyclones, Aria and Brody. Aria became a Category 2 while Brody became a low end Category 1 at peak intensity. Later came Winter Storm Charlotte which was a short lived winter cyclone that only caused a snowstorms across the east coast of the United States.
On December 13, 2024, Winter Cyclone Evelyn formed and became the first Major, Category 5 Winter Cyclone along with the earliest Winter Cyclone in the Atlantic basin, which caused $21 billion USD worth of damages and 34 deaths in Northern Scotland. A day after Evelyn formed, Dominic formed, making landfall in Ireland, causing $5 billion USD worth of damages and 24 deaths. Then came Winter Depression Six (06L) on December 25, which was a short lived depression that dissipated a day later. Fabian later formed making landfall on the Azores, causing 3 deaths and 4 million USD worth of damages.
Later, Gabrielle formed becoming the season's second major, fortunately didn't cause any deaths, or damages, despite reaching a Category 4 speeds. However, in Mid-January 3 storms formed at once, Iris, Gabrielle, and Holden. Neither 3 storms caused any damages or fatalities, mainly due to staying in waters. Later on January 21, Enzo formed from the remnants of the historic winter storm that affected the Gulf Coast, making two landfalls, one in France and another in England. Enzo caused 49 deaths, and caused $15 billion USD (2025 USD) total, along with bringing 11 inches of snowfall across France, Britain, and between 1-6 inches between Norway and Denmark.
Later in February so far, two storms, one subwinter and one winter formed. Julian, stayed in the ocean just south of Iceland, and dissipated 3 days later. Then formed Kylie, which dethroned Evelyn as the strongest storm of the season, reached Category 6 status on the Saffir-Simpson-Strauss Hurricane Wind Scale (SSSHWS).
Shortly after Julian, Kylie formed along the east coast of the United States, which later dethroned Evelyn as the strongest winter cyclone of the season, reaching peak intensity of 310 km/h (200 mph), also becoming the season's first "extreme" winter cyclone, a day after Kylie's dissipation, Luke formed becoming the season's third category 5, before making landfall in Ontario causing 84 deaths and $46 billion USD worth of damages on February 17.
Following Luke, Winter Cyclone Mariah formed, reaching a peak intensity of 112 mph (180 km/h) with a pressure of 979 mbars. Then Nolan formed almost a week later, causing minor damages and bringing snow showers to the United Kingdom as an extratropical cyclone. No deaths were recorded from Nolan. Meanwhile in the central Atlantic Ocean on March 18, Winter Cyclone Oasis formed, also reaching category 2 status. A day after Oasis' formation, Winter Cyclone Philippe formed impacting Iceland as a winter depression, and caused no deaths and no damages due to the size of the storm at the time. Additionally, Philippe peaked at a category 3, and dissipated on March 25.
In April, both Rylee and Sebestian formed, Rylee formed on April 10 did not cause any damages or deaths, due to it's very small size and unfavorable conditions including wind shear preventing it's further intensification, later dissipating on Apri 12. Sebestian, the 22nd and final system of the season, formed on April 25, peaked as a category 2, and later impacted Portugal, Spain, and Morocco as an extratropical cyclone, causing only 2 deaths and $1 million USD worth of damages.
Seasonal summary
Systems
Winter Cyclone Aria
| Category 2 winter cyclone (FHWS) | |
|---|---|
  | |
| Duration | November 14 – November 18 |
| Peak intensity | 165 km/h (105 mph) (1-min); 954 mbar (hPa) |
On November 12, The NHC noticed an extratropical cyclone producing unusual snowfall and thunder. The extratropical cyclone was later classified as "Invest 90L", as it continued showing signs of formation. On November 14, this extratropical cyclone became a subwinter storm with speeds of around 65 km/h, being named Aria. A few hours later, the storm became a winter storm, with speeds of 85 km/h. Aria continued to show signs of strengthening due to favorable conditions and low wind shear, later strengthening into a category 1 with speeds of 130 km/h.
Later the same day, It strengthened into a category 2 equivalent winter cyclone, with speeds of 170 km/h. The storm remained a C2 for around 12 hours before weakening rapidly due to sudden wind shear, before being weakened into a winter storm with speeds of 70 km/h. The storm later dissipated on November 18th.
Winter Cyclone Brody
| Category 1 winter cyclone (FHWS) | |
|---|---|
  | |
| Duration | November 28 – December 2 |
| Peak intensity | 120 km/h (75 mph) (1-min); 972 mbar (hPa) |
On November 28, The NHC spotted unusual disorganized thundersnows, which showed signs of rapid intensification. The disturbance then formed into a winter depresssion 22 hours later, being deemed Winter Depression 02L on November 29 8pm EST with speeds of 50 km/h. 02L strengthened into a Winter Storm (75 km/h), being named Brody at 3PM EST on November 30. Brody continued to show signs of strengthening before strengthening into a category 1 winter cyclone with speeds of 125 km/h, and making landfall in Newfoundland and Labordor 9PM EST. Brody weakened into a Winter Storm before making a second landfall in mainland Newfoundland, before dissipating into a Winter Depression on December 1, and then later dissipating on December 2 10AM EST.
Winter Storm Charlotte
| Winter storm (FHWS) | |
|---|---|
 | |
| Duration | December 12 – December 14 |
| Peak intensity | 85 km/h (50 mph) (1-min); 989 mbar (hPa) |
On December 11, The NHC detected an unusual winter wave on the east coast of the United States, east of Florida, which later become an extratropical cyclone, producing disorganized thundersnows and was classified as "Invest 94L". Later on December 12 9pm EST, It became a Winter Storm with speeds of 70 km/h. Charlotte later moved on across the east coast of the United States, reaching a peak intensity of 85 km/h on December 13, 3pm EST. It later on moved into the subtropics before dissipating on December 14.
Winter Cyclone Dominic
| Category 1 winter cyclone (FHWS) | |
|---|---|
 | |
| Duration | December 14 – December 18 |
| Peak intensity | 130 km/h (80 mph) (1-min); 974 mbar (hPa) |
On December 12, A winter disturbance was detected by satellites, with disorganized thundersnows, which later became subtropical not long after, being called 05L. 05L strengthened a few hours later becoming subwinter storm Dominic, later becoming a winter storm. Dominic intensified into a Category 1 on December 18, right before landfall in Ireland, before rapidly weakening into a winter depression and dissipating just a few hours after landfall.
Major Winter Cyclone Evelyn
| Category 5 winter cyclone (FHWS) | |
|---|---|
  | |
| Duration | December 13 – December 19 |
| Peak intensity | 280 km/h (175 mph) (1-min); 882 mbar (hPa) |
On December 11, The NHC saw unusual formation in the central Atlantic ocean, which later became Invest 95L, which later became a winter depression the next day, On December 13, It was named Evelyn. Evelyn begun to rapidly intensify becoming the season's first major winter cyclone overnight. Evelyn continued to northeast, affecting Northern Ireland and Scotland as a category 3 with speeds of 185 km/h, later continuing to weaken before dissipating on December 19.
Severe Winter Storm Fabian
| Severe winter storm (FHWS) | |
|---|---|
 | |
| Duration | January 6 – January 12 |
| Peak intensity | 110 km/h (70 mph) (1-min); 986 mbar (hPa) |
On January 4, the NHC located unusual thundersnows just south of the Azores, which showed more signs of intensification through the next day, before becoming a winter depression on January 6. Later the same day it strengthened into a winter storm, with speeds of 75 km/h. Fabian reached a peak intensity of 110 km/h around the start of January 7, and also making landfall in the Azores, bringing snowfall, and 3 deaths before weakening. Later on January 8, Fabian became subtropical, before becoming a European windstorm with the same name on January 9. Fabian became a European snowstorm, bringing winds and snowfall towards Spain, France, and other nearby countries. Finally, on January 12 Fabian dissipated just south of Norway.
Tropical / Winter Storm Andrea
| Winter storm (FHWS) | |
|---|---|
 | |
| Duration | January 15 – January 21 |
| Peak intensity | 75 km/h (45 mph) (1-min); 982 mbar (hPa) |
On January 14, an unusual tropical wave formed in the Gulf of Mexico, which later became Tropical Depression 01L on January 16. The next day around 14:30 UTC, 01L was named Andrea. Andrea later reached a peak intensity of 70 km/h, before making landfall in Tampa, FL, weakening down to a Tropical Depression, which it's remnants later became a winter depression on January 19. Andrea continued to show signs of strengthening later becoming a winter storm, which made landfall on January 20, before rapidly weakening, and dissipating on January 22.
Major Winter Cyclone Gabrielle
| Category 4 winter cyclone (FHWS) | |
|---|---|
 | |
| Duration | January 24 – January 28 |
| Peak intensity | 215 km/h (130 mph) (1-min); 964 mbar (hPa) |
On January 23, The NHC noted an extratropical cyclone, just northeast of Newfoundland & Labrador producing snowfall and thunder before organizing into a winter storm on January 24, being named Gabrielle. Around a day later, Gabrielle started to rapidly intensify, reaching almost major winter cyclone strength on January 25, and later becoming a major winter cyclone later in the morning of January 26. Later on, the winter cyclone reached a peak intensity of 130 mph (215 km/h), before later weakening due to wind shear. Throughout the next few days, Gabrielle weakened before briefly reaching category 2 for 12 hours, before becoming extratropical another 12 hours later. Gabrielle later dissipated on January 28, causing minimal effects north of Iceland.
Winter Cyclone Holden
| Category 1 winter cyclone (FHWS) | |
|---|---|
 | |
| Duration | January 16 – January 20 |
| Peak intensity | 140 km/h (85 mph) (1-min); 986 mbar (hPa) |
On January 13, The NHC noted a winter disturbance in the central Atlantic Ocean, showing signs of organization throughout the next 2 days, then becoming Winter Depression 10L. On January 17, 10L reached tropical storm strength being named Holden, later strengthening to a category 1 winter cyclone. The next day, Holden weakened remaining a tropical storm until January 19. Holden later dissipated fully on January 22.
Winter Storm Iris
| Winter storm (FHWS) | |
|---|---|
 | |
| Duration | January 16 – January 22 |
| Peak intensity | 65 km/h (40 mph) (1-min); 995 mbar (hPa) |
On January 15, The NHC detected an unusual disturbance, producing heavy snowfall, before rapidly intensifying into a Winter Depression on January 16, being numbered 08L. 08L later became a Winter Storm, with speeds of 65 km/h, being named Iris. Iris continued to intensify reaching a peak intensity of 80 km/h on January 17. Wind shear later caused the system to weaken, before dissipating on January 18.
Major Winter Cyclone Enzo
| Category 3 winter cyclone (FHWS) | |
|---|---|
  | |
| Duration | January 24 – January 28 |
| Peak intensity | 195 km/h (120 mph) (1-min); 973 mbar (hPa) |
On January 22, the remnants of Winter Storm Enzo (unofficially named Enzo by the Weather channel), formed a disturbance, later forming into a Winter Cyclone, which later reached a peak intensity of 195 km/h (121 mph), and brought 11 inches of snowfall across France, Britain, and between 1-6 inches between Norway and Denmark. This is recorded to be one of the most smallest, but also deadliest winter cyclones to strike Europe, right after Evelyn. Enzo later dissipated on January 28.
Subwinter Storm Julian
| Subwinter storm (FHWS) | |
|---|---|
 | |
| Duration | February 4 – February 7 |
| Peak intensity | 75 km/h (45 mph) (1-min); 991 mbar (hPa) |
On February 4, The NHC spotted a tropical depression-strength subwinter cyclone, which later was classified as Subwinter Storm 13L. On the morning of February 5, 13L became Tropical Storm Strength, before being named "Julian" a few hours after becoming tropical storm strength. Julian continued to move southeast towards the British Isles, before dissipating on February 7.
Extreme Winter Cyclone Kylie
| Category 6 winter cyclone (FHWS) | |
|---|---|
 | |
| Duration | February 10 – February 16 |
| Peak intensity | 325 km/h (200 mph) (1-min); 878 mbar (hPa) |
On February 9, A winter disturbance, located east of Newfoundland & Labrador, showed signs of rapid intensification, which later became Winter Depression 14L on February 10. On February 11, 14L was named "Kylie" after being unnamed despite having speeds of 75 km/h. Later on February 12, Kylie continued to rapidly intensify becoming a category 3 on the Saffir-Simpson scale with speeds of 180 km/h. On February 13, Kylie strengthend to a Category 5 with speeds of 260 km/h, while continuing to gain speed. Overnight on February 14, It weakened to a 4, due to slight wind shear before strengthening back into a 5, along with dethroning Evelyn as the strongest storm in the season. The same day, in the afternoon, It reached speeds of 310 km/h, becoming Category 6 on the Saffir-Simpson-Strauss Hurricane Wind Scale (SSSHWS). The storm then rapidly begun to weaken due to wind shear, before dissipating on February 16.
Winter Depression 16L
| Winter depression (FHWS) | |
|---|---|
 | |
| Duration | February 18 – February 19 |
| Peak intensity | 45 km/h (30 mph) (1-min); 1005 mbar (hPa) |
On February 18, A winter depression formed near the west coast of Africa. However, due to unfavorable conditions and high wind shear, it dissipated the next day.
Major Winter Cyclone Luke
| Category 5 winter cyclone (FHWS) | |
|---|---|
 | |
| Duration | February 16 – February 19 |
| Peak intensity | 270 km/h (168 mph) (1-min); 944 mbar (hPa) |
On February 14, The NHC noted an unusual winter disturbance located in the Hudson Bay, which later began to under go rapid intensification, reaching a peak intensity of 270 km/h on February 18. Luke weakened to a speed of 240 km/h, before making a catastrophic landfall on northern Ontario, causing $46 billion USD worth of damages and 84 deaths. Following landfall, Luke started to rapidly weaken, transitioning into an extratropical cyclone 12 hours later, and later dissipated a few miles off the coast of Maryland.
Winter Cyclone Mariah
| Category 3 winter cyclone (FHWS) | |
|---|---|
 | |
| Duration | February 27 – March 3 |
| Peak intensity | 175 km/h (112 mph) (1-min); 979 mbar (hPa) |
On February 26, the NHC noted an extratropical cyclone, which later developed into winter depression 18L. On February 28, 18L reached tropical storm strength, being named Mariah. This winter cyclone later intensified into a category 1before strengthening into a Category 2. Mariah later weakened back to a Category 1, due to minor wind shear. This system later restrengthened back into a category 2, for around a day before gradually weakening over time, eventually weakening to a winter depression on March 2, and dissipated the following day.
Winter Storm Nolan
| Winter storm (FHWS) | |
|---|---|
 | |
| Duration | March 9 – March 11 |
| Peak intensity | 75 km/h (47 mph) (1-min); 992 mbar (hPa) |
On March 9, A winter depression, designated winter depression 19L, briefly formed. The system strengthened to a weak winter storm on March 10 being named Nolan, reaching a peak intensity of 75 km/h. Nolan weakened rapidly before going extratropical on the 11th, then later dissipated fully on March 12.
Winter Cyclone Oasis
| Category 2 winter cyclone (FHWS) | |
|---|---|
 | |
| Duration | March 18 – March 23 |
| Peak intensity | 165 km/h (106 mph) (1-min); 962 mbar (hPa) |
Major Winter Cyclone Philippe
| Category 3 winter cyclone (FHWS) | |
|---|---|
 | |
| Duration | March 19 – March 25 |
| Peak intensity | 195 km/h (121 mph) (1-min); 953 mbar (hPa) |
Severe Winter Storm Rylee
| Severe winter storm (FHWS) | |
|---|---|
 | |
| Duration | April 10 – April 12 |
| Peak intensity | 95 km/h (56 mph) (1-min); 984 mbar (hPa) |
Winter Cyclone Sebestien
| Category 2 winter cyclone (FHWS) | |
|---|---|
 | |
| Duration | April 25 – April 28 |
| Peak intensity | 155 km/h (96 mph) (1-min); 974 mbar (hPa) |
Season Names
The following list of names is being used for named storms that form in the North Atlantic in 2024-25. Names retired, if any will be announced in Mid 2025.
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For storms that form from Winter Storms or a tropical cyclone becoming a winter cyclone, it will retain it's name given. So far, There was two instances of this in 2024-25.
- Andrea (formed from an off season tropical cyclone which was named Andrea)
- Enzo (formed from the January 2025 Gulf Coast Blizzard, unofficially named Enzo by The Weather Channel)
Retirement
On June 15, 2025, The World Meteorological Organization retired the names Dominic, Evelyn, Enzo, Kylie, and Luke from its rotating name lists due to the widespread destruction (especially from Enzo) and loss of life from the 5 storms, particularly in France, Ireland and northern Scotland, and they will not be used again in the North Atlantic basin. They were replaced with Dylan, Emilia, Kayla, and Leon respectively, which will first appear on the 2030-31 season list. Despite Enzo being retired, it was not replaced with a name due to not being on any lists, but will never be used again in the North Atlantic basin for any future hurricanes or winter cyclones.
Season Effects
This is a table of all of the storms that formed in the 2024-25 Atlantic Winter Cyclone season. It includes their name, duration, peak classification and intensities, areas affected, damage, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but were still related to that storm. Damage and deaths include totals while the storm was extratropical, a wave, or a low, and all of the damage figures are in 2024/2025 USD.
[WIP]