2023 Atlantic Hurricane Season

2023 Atlantic hurricane season
Season summary map
First system formed August 1
Last system dissipated December 26
Strongest storm Emily – 901 mbar (hPa) (26.62 inHg), 185 mph (295 km/h)
Total depressions 22
Total storms 22
Hurricanes 8
Major hurricanes (Cat. 3+) 6
Total fatalities >2000
Total damage $59 billion (2023 USD)
Atlantic hurricane seasons
2021 2022 2023 2024 2025

The 2023 Atlantic hurricane season was a hyperactive season in which 22 notal storms formed, 8 of which became hurricanes, 6 became majors, 5 Category 4s and 3 Category 5s.

It had a late start in August, but due to the active late season full of weak storms the number skyrocketed. It was a destructive and deadly season, however most storms capable of causing massive damage missed land, with only Arlene making a major landfall. It was the first time a hurricane made landfall in Europe, with Arlene making landfall as a Category 4 storm, causing 57 billion dollars of damages and 51 fatalities.

The season had a late end, with Alpha dissipating over Central America on the second day of Christmas. Alpha was the deadliest storm, causing more than 2000 fatalities in Central America during the holiday period due to rain and mudslides.

The season had an unusually inactive Gulf Of Mexico, but the MDR was hyperactive, and the Carribean was a bit above average.

It was thought that due to the El Nino event of 2018 - 2023 the season would be inactive, but during winter it became neutral, and eventually flipped to a super Nina, which fueled the activity that would follow.

This season is one of only 7 to feature multiple Category 5 hurricanes. It had 3 - Don, Emily and Harold.

The season produced 243.6625 ACE units, 69.17 of those were produced by Hurricane Emily. It makes the season the 3rd most active since 1851, behind 2005 and 1933, and the second in the satellite era, only behind 2005. Emily came close to beating the single storm ACE record, but came a bit short. It also was one of five years since 1950 to have multiple storms above 40 ACE, with Don and Emily both reaching above 40.

This season started the 2023 - 2026 active La Nina streak.

Seasonal forecasts

Source Date Named


Hurricanes Major


TSR December 5, 2022 5 1 0
TSR April 5, 2023 4 0 0
NOAA April 5, 2023 15 6 3
CSU April 5, 2023 9 2 0
CSU June 1, 2023 6 1 0
TSR June 1, 2023 3 0 0
NOAA June 1, 2023 11 5 2
UKMO July 5, 2023 2 2 0
NOAA August 1, 2023 16 7 2
CSU August 11, 2023 9 6 2
TSR August 11, 2023 8 6 3
Actual activity 22 8 6

Seasonal summary

wikipedia:Saffir-Simpson Hurricane Scale

Hurricane Arlene

Category 4 hurricane (NHC)
Arlene-0.png Hurricane Arlene CT.png
Duration August 1 – August 13
Peak intensity 140 mph (220 km/h) (1-min)  935 mbar (hPa)

On the 29th of July, the NHC noted a Tropical Wave forming over Africa. Over a couple of days, the wave formed into a Tropical Low. On the 1st of August, the low was classified as a Tropical Depression and given the designation 01L. On the 2nd, the depression intensified to Tropical Storm status. The storm, against all predictions, intensified to Category 4 intensity and made landfall on Portuguese soil at peak intensity on the 12th of August. Then it rapidly degenerated, and affected large parts of Europe as a Remnant Low. The storm caused 57 billion $ (2023) of damage and killed 51 people. It holds the record for the northeasternmost hurricane and major hurricane, landfall, hurricane landfall, major landfall, most powerful storm to affect Europe and northeasternmost retired storm.

Tropical Storm Bret

Tropical storm (NHC)
800px-Jose 2005-08-23 Terra.jpg Tropical Storm Bret CT.png
Duration August 4 – August 5
Peak intensity 50 mph (85 km/h) (1-min)  998 mbar (hPa)

On the 3rd of August NHC gave a disturbance 80 / 80 chances of formation. On the 4th it became Tropical Storm Bret. It then quickly made landfall in Mexico. It dissipated as a remnant low on the 5th of August. It was an insignificant storm, only causing less than 5 million dollars of damages and 2 fatalities.

Tropical Storm Cindy

Tropical storm (NHC)
Julia 2016-09-13 1825Z.jpg Tropical Storm Cindy CT.png
Duration August 6 – August 7
Peak intensity 45 mph (75 km/h) (1-min)  1007 mbar (hPa)

On the 4th of August the NHC noted a well organized area of thunderstorms. On the 6th it became TS Cindy and immediately landfalled in Florida. Then it became extratropical and dissipated on the 7th of August. It caused less than 1 million dollars of damages and 0 fatalities due to small size and weak intensity.

Hurricane Don

Category 5 hurricane (NHC)
Donsim2023.png Hurricane Don CT.png
Duration August 13 – August 22
Peak intensity 175 mph (280 km/h) (1-min)  925 mbar (hPa)

The NHC began tracking a disturbance on August 10th. It gradually organized, becoming a TD on August 13th. It then got the name Don and TS status. It quickly intensified to Category 5 status. An EWRC then weakened it back to Cat 4, later restrenghtening back to Cat 5. It then began to get carried away by the jet stream, but made an unusual turn and made landfall in New Jersey as a tropical storm. It then rapidly dissipated. It caused less than 250 million dollars of damages and 2 fatalities, due to small size and weak intensity at landfall.

Hurricane Emily

Category 5 hurricane (NHC)
Emilysim2023.png Hurricane Emily CT.png
Duration August 23 – September 8
Peak intensity 185 mph (295 km/h) (1-min)  901 mbar (hPa)

On the 23rd of August the NHC began tracking a tropical wave. It rapidly organized, becoming named a day later. It then intensified to Cat 5 status before weakening due to an EWRC, while doing a cyclonic loop. It then reintensified and peaked, but another EWRC weakened it to Cat 4 intensity again. It then got carried away in the jet stream while weakening. Due to it's failure at affecting land, it only did less than 1 million dollars of damage.

Tropical Storm Franklin

Tropical storm (NHC)
TS Ernesto 2006.jpg Tropical Storm Franklin CT.png
Duration August 25 – August 28
Peak intensity 60 mph (95 km/h) (1-min)  991 mbar (hPa)

An organized area of thunderstorms formed near Hispaniola on the 25th of August. A day later it became a tropical depression. It then crossed Cuba before becoming a tropical storm. It made landfall at peak intensity in Florida. It then rapidly degenerated and dissipated on the 29th of August. It did less than 200 million dollars of damages and 10 fatalities, because the region is prepared for storms.

Tropical Storm Gert

Tropical storm (NHC)
Bonnie 2010 (Model series).jpg Tropical Storm Gert CT.png
Duration August 29 – August 30
Peak intensity 50 mph (85 km/h) (1-min)  997 mbar (hPa)

An area of thunderstorms rapidly organized and became Tropical Storm Gert on the 29th of August. It then made landfall in Texas at peak intensity and then rapidly dissipated. It caused less than 525 million dollars of damages and 12 fatalities, mostly due to flooding.

Hurricane Harold

Category 5 hurricane (NHC)
HurrHaroldstronker.png Hurricane Harold CT.png
Duration September 8 – September 20
Peak intensity 160 mph (260 km/h) (1-min)  929 mbar (hPa)
A tropical low formed on the 8th of September. It became a tropical storm the next day. It quickly intensified, becoming a hurricane on the 10th of September. It peaked as a Cat 5 just off the Georgian coastline, but due to small size it didn't affect land too much. It then weakened and turned east, Eventually turning post tropical and moving north, affecting Greenland. It only did less than 100 million dollars of damages and 5 fatalities, mostly due to rainfall.

Hurricane Idalia

Category 3 hurricane (NHC)
Idaliasim2023.png Hurricane Idalia CT.png
Duration September 20 – September 29
Peak intensity 125 mph (205 km/h) (1-min)  949 mbar (hPa)

On the 20th of September at 18:00 UTC a tropical depression formed. The next day at 00:00 UTC it became TS Idalia. It then intensified and peaked for the first time as a Cat 2, before hitting Jamaica as a Cat 1 on the 23rd of September at 18:00 UTC. It then reintensified and peaked as a Cat 2 for the second time while making landfall in Cuba on the 24th of September at 12:00 UTC. After landfall it weakened to TS status but then reintensified. It had it's main peak as a strong Cat 3 on the 26th of September at 00:00 UTC. It then had a close approach to Bermuda and weakened while moving north. It made landfall in Canada on the 29th of September as a high end TD at 12:00 UTC and shortly thereafter dissipated. It caused less than 500 million in damages and 17 fatalities, mostly in Cuba.

Hurricane Jose

Category 4 hurricane (NHC)
Josesim2023.png Hurricane Jose CT.png
Duration September 30 – October 10
Peak intensity 155 mph (250 km/h) (1-min)  938 mbar (hPa)

On the 30th of September a TD formed. it quickly became TS Jose, and later, while doing a cyclonic loop, on the 2nd of October, Hurricane Jose. It then became a major for the first time, as a high end Cat 3. It peaked on the 4th of September for the first time. An EWRC then caused weakening. It weakened to Cat 2 status before reintensifying. It became a major again on the 5th of September. It became a Cat 4 on the 6th. It peaked at 00:00 UTC September 7 as a very high end Category 4 hurricane. Another EWRC then caused weakening, and the storm dissipated on the 10th of October. It caused no damages or fatalities due to minor land effects.

Tropical Storm Katia

Tropical storm (NHC)
Katiasim2023.png Tropical Storm Katia CT.png
Duration October 11 – October 15
Peak intensity 60 mph (95 km/h) (1-min)  992 mbar (hPa)

On the 11th of October a TD formed. The next day, at 06:00 UTC October 12th, it became a tropical storm and was named Katia. It then intensified, peaking at 06:00 October 13th as a moderate TS. It then weakened and dissipated on the 15th of October at 00:00 UTC. It caused a very small amount of damage due to not affecting land much.

Tropical Storm Lee

Tropical storm (NHC)
Iris 1995 WMHB.jpg Tropical Storm Lee CT.png
Duration October 15 – October 17
Peak intensity 50 mph (85 km/h) (1-min)  995 mbar (hPa)

On the 15th of October a TD became designated. On the 16th, at 12:00 UTC it became TS Lee. It landfalled near Miami at peak intensity at 03:00 UTC, on the 17th of October. It then swiftly dissipated. The storm caused insignificant damage and 1 death.

Tropical Storm Margot

Tropical storm (NHC)
H1 Fiona.jpg Tropical Storm Margot CT.png
Duration October 18 – October 21
Peak intensity 70 mph (110 km/h) (1-min)  989 mbar (hPa)

Subtropical Storm Nigel

Subtropical storm (NHC)
Nigelsim2023.png Subtropical Storm Nigel Crop.png
Duration October 22 – October 24
Peak intensity 45 mph (75 km/h) (1-min)  1005 mbar (hPa)

Tropical Storm Ophelia

Tropical storm (NHC)
Counterclockwise vortex Tropical Storm Ophelia Crop.png
Duration October 25 – October 27
Peak intensity 40 mph (65 km/h) (1-min)  1008 mbar (hPa)

Tropical Storm Philippe

Tropical storm (NHC)
Philippesim2023.png Tropical Storm Philippe Crop.png
Duration October 27 – October 31
Peak intensity 70 mph (110 km/h) (1-min)  991 mbar (hPa)

Tropical Storm Rina

Tropical storm (NHC)
Rinasim2023.png Tropical Storm Rina Crop.png
Duration November 1 – November 3
Peak intensity 50 mph (85 km/h) (1-min)  1001 mbar (hPa)

Hurricane Sean

Category 1 hurricane (NHC)
Seansim2023.png Hurricane Sean Crop.png
Duration November 4 – November 11
Peak intensity 90 mph (150 km/h) (1-min)  981 mbar (hPa)

Tropical Storm Tammy

Tropical storm (NHC)
Counterclockwise vortex Tropical Storm Tammy Crop.png
Duration November 15 – November 16
Peak intensity 40 mph (65 km/h) (1-min)  1007 mbar (hPa)

Tropical Storm Vince

Tropical storm (NHC)
Tropical Storm Bret (2017).jpg Tropical Storm Vince Crop.png
Duration November 24 – November 25
Peak intensity 40 mph (65 km/h) (1-min)  1008 mbar (hPa)

Tropical Storm Whitney

Tropical storm (NHC)
Whitneysim2023.png Tropical Storm Whitney Crop.png
Duration December 5 – December 8
Peak intensity 50 mph (85 km/h) (1-min)  1002 mbar (hPa)

Hurricane Alpha

Category 1 hurricane (NHC)
Alphasim2023.png Hurricane Alpha Crop.png
Duration December 22 – December 26
Peak intensity 75 mph (120 km/h) (1-min)  988 mbar (hPa)

Storm names

The following names will be used to name tropical and subtropical cyclones in the 2029 season. This is the same list used in the 2017 season, except for Harold, Idalia, Margot and Nigel, which replaced retired names Harvey, Irma, Maria and Nate.

  • Arlene
  • Bret
  • Cindy
  • Don
  • Emily
  • Franklin
  • Gert
  • Harold
  • Idalia
  • Jose
  • Katia
  • Lee
  • Margot
  • Nigel
  • Ophelia
  • Philippe
  • Rina
  • Sean
  • Tammy
  • Vince
  • Whitney
  • Alpha

Due to caused damage and deaths, on April 13, 2024, Arlene was retired and replaced by Abby.

Season effects

Saffir–Simpson hurricane wind scale
TD TS C1 C2 C3 C4 C5

This is a table of the storms and their effects in the 2023 Atlantic hurricane season. This table includes the storm's names, duration, peak intensity, Areas affected (bold indicates made landfall in that region at least once), damages, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but are still storm-related. Damage and deaths include totals while the storm was extratropical, a wave or a low. All of the damage figures are in 2023 USD (the listed damage figure is in millions).

2023 North Atlantic tropical cyclone statistics
Dates active Storm category

at peak intensity

Max 1-min
mph (km/h)
Areas affected Damage
(millions USD)

Arlene August 1 – August 13 Category 4 hurricane 140 935 Spain, Portugal 57000 51
Bret August 4 – August 5 Tropical storm 50 998 Mexico <5 2
Cindy August 6 – August 7 Tropical storm 45 1007 Florida <1 0
Don August 13 – August 22 Category 5 hurricane 175 925 New Jersey <250 2
Emily August 23 – September 8 Category 5 hurricane 185 901 None <1 0
Franklin August 25 – August 28 Tropical storm 60 991 Hispaniola, Cuba, Florida <200 20
Gert August 29 – August 30 Tropical storm 50 997 Texas <525 12
Harold September 8 – September 20 Category 5 hurricane 160 929 Leeward Islands, Puerto Rico, Hispaniola, The Bahamas, US East Coast >100 5
Idalia September 20 – September 29 Category 3 hurricane 125 949 Venezuela, Jamaica, Cuba, The Bahamas, Canada <500 17
Jose September 30 – October 10 Category 4 hurricane 155 938 None 0 0
Katia October 11 – October 15 Tropical storm 60 992 Leeward Islands <1 0
Lee October 15 – October 17 Tropical storm 50 995 Florida, Cuba, The Bahamas <1 1
Margot October 18 – October 21 Tropical storm 70 989 Central America >10 15
Nigel October 22 – October 24 Tropical storm 45 1005 None 0 0
Ophelia October 25 – October 27 Tropical storm 40 1008 Costa Rica, Nicaragua <10 40
Philippe October 27 – October 31 Tropical storm 70 991 None 0 0
Rina November 1 – November 3 Tropical storm 50 1001 Costa Rica, Nicaragua <10 35
Sean November 4 – November 11 Category 1 hurricane 90 981 Leeward Islands, Puerto Rico <100 15
Tammy November 15 – November 16 Tropical storm 40 1007 Costa Rica, Nicaragua <10 20
Vince November 24 – November 25 Tropical storm 40 1008 Northern South America <10 10
Whitney December 5 – December 8 Tropical storm 50 1002 Hispaniola <10 25
Alpha December 22 – December 26 Category 1 hurricane 75 988 Latin America <100 2000