Timeline of the 2023 Atlantic hurricane season
The 2023 Atlantic hurricane season is the current hurricane season, the annual period of tropical cyclogenesis in the Atlantic Ocean in the Northern Hemisphere. The season officially began on June 1, 2023, and will end on November 30, 2023. These dates, adopted by convention, historically describe the period in each year when most subtropical or tropical cyclones form in the Atlantic. However, tropical cyclone formation is possible at any time of the year, as was the case this season, when an unnamed subtropical storm formed on January 16. This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season. It includes information that was not released throughout the season, meaning that data from post-storm reviews by the National Hurricane Center, such as a storm that was not initially warned upon, has been included. By convention, meteorologists use one time zone when issuing forecasts and making observations: Coordinated Universal Time (UTC), and also use the 24-hour clock (where 00:00 = midnight UTC). The National Hurricane Center uses both UTC and the time zone where the center of the tropical cyclone is currently located. The time zones utilized (east to west) are: Greenwich, Cape Verde, Atlantic, Eastern, and Central. In this timeline, all information is listed by UTC first, with the respective regional time zone included in parentheses. Additionally, figures for maximum sustained winds and position estimates are rounded to the nearest 5 units (knots, miles, or kilometers), following National Hurricane Center practice. Direct wind observations are rounded to the nearest whole number. Atmospheric pressures are listed to the nearest millibar and nearest hundredth of an inch of mercury. Timeline

January
January 16

12:00 UTC (8:00 a.m. AST) at A subtropical storm forms about  southeast of Nantucket, Massachusetts. January 17
00:00 UTC (8:00 p.m. AST, January 16) at The unnamed subtropical storm reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  south-southeast of Halifax, Nova Scotia. 12:45 UTC (8:45 a.m. AST) at The unnamed subtropical storm makes landfall at Louisbourg, Nova Scotia, with sustained winds of . 18:00 UTC (2:00 p.m. AST) at The unnamed subtropical storm transitions to a post-tropical low south of the coast of far eastern Quebec, and subsequently dissipates. June 
June 1
 The Atlantic hurricane season officially begins. 12:00 UTC (7:00 a.m. CDT) at Tropical Depression Two forms off the western coast of Florida. June 2
18:00 UTC (1:00 p.m. CDT) at Tropical Depression Two strengthens into Tropical Storm Arlene. June 3
00:00 UTC (7:00 p.m. CDT, June 2) at Tropical Storm Arlene reaches peak intensity with maximum sustained winds of  and a minimum central pressure of . 06:00 UTC (1:00 a.m. CDT) at Tropical Storm Arlene weakens to a tropical depression. 12:00 UTC (8:00 a.m. EDT) at Tropical Depression Arlene degenerates into a remnant low, and subsequently dissipates. June 19
06:00 UTC (2:00 a.m. AST) at Tropical Depression Three forms from a tropical wave about  east of Barbados. 18:00 UTC (2:00 p.m. AST) at Tropical Depression Three strengthens into Tropical Storm Bret about  east of Barbados. June 22

00:00 UTC (8:00 p.m. AST, June 21) at Tropical Depression Four forms from a tropical wave over the central tropical Atlantic. 06:00 UTC (2:00 a.m. AST) at Tropical Storm Bret reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , east of Barbados. June 23
00:00 UTC (8:00 p.m. AST, June 22) at Tropical Depression Four strengthens into Tropical Storm Cindy east of the Lesser Antilles. 03:15 UTC (2:15 a.m. AST) at Tropical Storm Bret makes landfall with sustained winds of  on Saint Vincent, Saint Vincent and the Grenadines. June 24
06:00 UTC (2:00 a.m. AST) at Tropical Storm Cindy reaches peak intensity with maximum sustained winds of  and a minimum central pressure of . 12:00 UTC (8:00 a.m. EDT) at Tropical Storm Bret opens into a trough about  northwest of Aruba, and subsequently dissipates. June 26
 03:00 UTC (11:00 p.m. AST, June 25) at Tropical Storm Cindy degenerates to an open wave about  north-northeast of the Northern Leeward Islands. July 
July 14
09:00 UTC (5:00 a.m. AST) at Subtropical Storm Don forms from an area of low pressure about  west-southwest of the Azores. July 16
15:00 UTC (11:00 a.m. AST) at Subtropical Storm Don weakens to a subtropical depression about  west of the Azores. July 17

15:00 UTC (3:00 p.m. GMT) at Subtropical Depression Don transitions to a tropical depression about  west of the Azores. July 18
03:00 UTC (3:00 a.m. GMT) at Tropical Depression Don strengthens into a tropical storm about  west of the Azores. July 22
21:00 UTC (5:00 p.m. AST) at Tropical Storm Don strengthens into a Category 1 hurricane and simultaneously reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  south-southeast of Cape Race, Newfoundland. July 23
09:00 UTC (5:00 a.m. AST) at Hurricane Don weakens to a tropical storm about  southeast of Cape Race. July 24
15:00 UTC (3:00 p.m. GMT) at Tropical Storm Don transitions to a post-tropical cyclone about  east of Cape Race. August 
August 19
 21:00 UTC (5:00 p.m. AST) at Tropical Depression Six forms from a tropical wave about  east of the northern Leeward Islands. August 20
 15:00 UTC (11:00 a.m. AST) at Tropical Storm Emily forms from a tropical disturbance and simultaneously reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  west-northwest of Cabo Verde. 21:00 UTC (5:00 p.m. AST) at Tropical Storm Franklin forms from an area of low pressure about  south-southeast of Isla Saona, Dominican Republic. August 21
 04:00 UTC (12:00 a.m. AST) at Tropical Depression Six strengthens into Tropical Storm Gert about  east of the northern Leeward Islands. 15:00 UTC (11:00 a.m. AST) at Tropical Storm Emily degenerates to a remnant low about  west-northwest of Cabo Verde. 21:00 UTC (4:00 p.m. AST) at Tropical Depression Nine forms about  east-southeast of Port Mansfield, Texas. 21:00 UTC (5:00 p.m. AST) at Tropical Storm Gert weakens to a tropical depression about  east of the northern Leeward Islands. August 22
 06:00 UTC (1:00 a.m. CDT) at Tropical Depression Nine strengthens into Tropical Storm Harold about  east-southeast of Port Mansfield. 15:00 UTC (10:00 a.m. CDT) at Tropical Storm Harold reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , and simultaneously makes landfall at Padre Island, Texas, about  north of Port Mansfield. 15:00 UTC (11:00 a.m. AST) at Tropical Depression Gert degenerates to a remnant low about  east-southeast of the northern Leeward Islands. 21:00 UTC (4:00 p.m. CDT) at Tropical Storm Harold weakens to a tropical depression about  east of Laredo, Texas. August 23
 12:00 UTC (8:00 a.m. EDT) at Tropical Storm Franklin makes landfall with sustained winds of , about  south-southwest of Barahona, Dominican Republic. 15:00 UTC (10:00 a.m. CDT) at Tropical Depression Harold degenerates to a remnant low about  southeast of El Paso, Texas. August 26
 15:00 UTC (11:00 a.m. AST) at Tropical Storm Franklin strengthens into a Category 1 hurricane about  east-northeast of Grand Turk Island. 21:00 UTC (4:00 p.m. CDT) at Tropical Depression Ten forms about  northeast of Cozumel, Quintana Roo. August 27
 15:00 UTC (11:00 a.m. AST) at Hurricane Franklin intensifies to Category 2 strength about  north-northeast of Grand Turk Island. 15:15 UTC (10:15 a.m. CDT) at Tropical Depression Ten strengthens into Tropical Storm Idalia about  east-southeast of Cozumel. August 28
 09:00 UTC (5:00 a.m. EDT) at Hurricane Franklin intensifies to Category 3 strength about  north of Grand Turk Island. 11:35 UTC (7:35 a.m. EDT) at Hurricane Franklin intensifies to Category 4 strength about  north of Grand Turk Island. August 29

 00:00 UTC (8:00 p.m. EDT, August 28) at Hurricane Franklin reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  west-southwest of Bermuda. 09:00 UTC (4:00 a.m. CDT) at Tropical Storm Idalia strengthens into a Category 1 hurricane about  north of the western tip of Cuba. 15:00 UTC (11:00 a.m. AST) at Tropical Depression Eleven forms from an area of low pressure about  east-southeast of Bermuda. 18:00 UTC (2:00 p.m. EDT) at Hurricane Franklin weakens to Category 3 strength about  west-southwest of Bermuda. 21:00 UTC (5:00 p.m. EDT) at Hurricane Idalia intensifies to Category 2 strength about  southwest of Tampa, Florida. August 30
 06:00 UTC (2:00 a.m. EDT) at Hurricane Idalia intensifies to Category 3 strength about  southwest of Cedar Key, Florida. 09:00 UTC (5:00 a.m. EDT) at Hurricane Idalia intensifies to Category 4 strength and simultaneously reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  west of Cedar Key. 09:00 UTC (5:00 a.m. AST) at Hurricane Franklin weakens to Category 2 strength about  west-northwest of Bermuda. 11:00 UTC (7:00 a.m. EDT) at Hurricane Idalia weakens to Category 3 strength about  northwest of Cedar Key. 11:45 UTC (7:45 a.m. EDT) at Hurricane Idalia makes landfall with sustained winds of , about  south of Perry, Florida. 13:00 UTC (9:00 a.m. EDT) at Hurricane Idalia weakens to Category 2 strength about  south-southwest of Madison, Florida. 15:00 UTC (11:00 a.m. EDT) at Hurricane Idalia weakens to Category 1 strength about  south-southeast of Valdosta, Georgia. 21:00 UTC (5:00 p.m. EDT) at Hurricane Idalia weakens to a tropical storm about  west of Savannah, Georgia. August 31
 09:00 UTC (5:00 a.m. AST) at Tropical Depression Eleven strengthens into Tropical Storm Jose about  east-southeast of Bermuda. 21:00 UTC (5:00 p.m. AST) at Hurricane Franklin weakens to Category 1 strength about  northeast of Bermuda. 21:00 UTC (5:00 p.m. EDT) at Tropical Storm Idalia transitions to an extratropical cyclone about  southeast of Cape Hatteras, North Carolina. September
September 1

 09:00 UTC (5:00 a.m. AST) at Remnants of Gert regenerate into a tropical depression about  east-southeast of Bermuda. 09:00 UTC (5:00 a.m. AST) at Tropical Storm Jose reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  east-northeast of Bermuda. 15:00 UTC (2:00 p.m. CVT) at Tropical Depression Twelve forms from an area of low pressure about  northwest of Cabo Verde. 21:00 UTC (5:00 p.m. AST) at Tropical Depression Gert re-strengthens to a tropical storm about  east-southeast of Bermuda. 21:00 UTC (5:00 p.m. AST) at Hurricane Franklin transitions to an extratropical cyclone about  northeast of Bermuda. September 2
 03:00 UTC (11:00 p.m. AST, September 1) at Tropical Storm Jose is absorbed into PostTropical Cyclone Franklin about  northeast of Bermuda. 09:00 UTC (8:00 a.m. CVT) at Tropical Depression Twelve strengthens into Tropical Storm Katia about  northwest of Cabo Verde. 21:00 UTC (5:00 p.m. AST) at Tropical Storm Katia reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  north-northwest of Cabo Verde. September 3
 15:00 UTC (11:00 a.m. AST) at Tropical Storm Gert reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  east of Bermuda. September 4
 03:00 UTC (3:00 a.m. GMT) at Tropical Storm Katia weakens to a tropical depression about  northwest of Cabo Verde. 15:00 UTC (11:00 a.m. AST) at Tropical Storm Gert dissipates about  northeast of Bermuda. 21:00 UTC (9:00 p.m. GMT) at Tropical Depression Katia degenerates to a remnant low about  northwest of Cabo Verde. September 5
 15:00 UTC (11:00 a.m. AST) at Tropical Depression Thirteen forms from a tropical wave about  east of the Lesser Antilles. 21:00 UTC (5:00 p.m. AST) at Tropical Depression Thirteen strengthens into Tropical Storm Lee about  east of the Lesser Antilles. September 6
 21:00 UTC (5:00 p.m. AST) at Tropical Storm Lee strengthens into a Category 1 hurricane about  east of the northern Leeward Islands. September 7
 15:00 UTC (11:00 a.m. AST) at Hurricane Lee intensifies to Category 2 strength about  northeast of the northern Leeward Islands. 15:00 UTC (2:00 p.m. CVT) at Tropical Depression Fourteen forms from a tropical wave about  west of Cabo Verde. 21:00 UTC (5:00 p.m. AST) at Hurricane Lee rapidly intensifies to Category 4 strength about  east of the northern Leeward Islands. 21:00 UTC (8:00 p.m. CVT) at Tropical Depression Fourteen strengthens into Tropical Storm Margot about  west-northwest of Cabo Verde. September 8

 03:00 UTC (11:00 p.m. AST, September 7) at Hurricane Lee intensifies to Category 5 strength about  east of the northern Leeward Islands. 09:00 UTC (5:00 a.m. AST) at Hurricane Lee reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  east of the northern Leeward Islands. 15:00 UTC (11:00 a.m. AST) at Hurricane Lee weakens to Category 4 strength about  east of the northern Leeward Islands. September 9
 03:00 UTC (11:00 p.m. AST, September 8) at Hurricane Lee weakens to Category 3 strength about  east of the northern Leeward Islands. September 10
 03:00 UTC (11:00 p.m. AST, September 9) at Hurricane Lee weakens to Category 2 strength about  northeast of the northern Leeward Islands. 21:00 UTC (5:00 p.m. AST) at Hurricane Lee re-intensifies to Category 3 strength and simultaneously reaches a secondary peak with maximum sustained winds of  about  north-northeast of the northern Leeward Islands. September 11
 21:00 UTC (9:00 p.m. GMT) at Tropical Storm Margot strengthens into a Category 1 hurricane about  northwest of Cabo Verde. September 13
 15:00 UTC (3:00 p.m. GMT) at Hurricane Margot reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  west-southwest of the Azores. 18:00 UTC (2:00 p.m. AST) at Hurricane Lee weakens to Category 2 strength about  south-southwest of Bermuda. September 14
 15:00 UTC (11:00 a.m. AST) at Hurricane Lee weakens to Category 1 strength about  west-southwest of Bermuda. September 15
 09:00 UTC (9:00 a.m. GMT) at Hurricane Margot weakens to a tropical storm about  west of the Azores. 15:00 UTC (11:00 a.m. AST) at Tropical Depression Fifteen forms about  east of the Lesser Antilles. September 16
 09:00 UTC (5:00 a.m. AST) at Hurricane Lee transitions to an extratropical cyclone about  south-southwest of Halifax, Nova Scotia. September 17
 03:00 UTC (11:00 p.m. AST, September 16) at Tropical Depression Fifteen strengthens into Tropical Storm Nigel about  east-northeast of the Lesser Antilles. 15:00 UTC (3:00 p.m. GMT) at Tropical Storm Margot transitions to a post-tropical cyclone about  west of the Azores. September 18
 09:00 UTC (5:00 a.m. AST) at Tropical Storm Nigel strengthens into a Category 1 hurricane about  east-southeast of Bermuda. September 19

 21:00 UTC (5:00 p.m. AST) at Hurricane Nigel intensifies to Category 2 strength about  east of Bermuda. September 20
 03:00 UTC (11:00 p.m. AST, September 19) at Hurricane Nigel reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  east of Bermuda. 15:00 UTC (11:00 a.m. AST) at Hurricane Nigel weakens to Category 1 strength about  east-northeast of Bermuda. September 22
 09:00 UTC (9:00 a.m. GMT) at Hurricane Nigel transitions to an extratropical cyclone about  north-northwest of the Azores. 18:00 UTC (2:00 p.m. EDT) at Tropical Storm Ophelia forms from a non-tropical area of low pressure about  southeast of Cape Fear, North Carolina. September 23
 09:00 UTC (5:00 a.m. EDT) at Tropical Storm Ophelia reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  southwest of Cape Lookout, North Carolina. 10:15 UTC (6:15 a.m. EDT) at Tropical Storm Ophelia makes landfall near Emerald Isle, North Carolina with sustained winds of , about  west-northwest of Cape Lookout. 15:00 UTC (11:00 a.m. AST) at Tropical Depression Seventeen forms about  west of Cape Verde. 21:00 UTC (5:00 p.m. AST) at Tropical Depression Seventeen strengthens into Tropical Storm Philippe about  west of Cabo Verde. September 24
 00:00 UTC (8:00 p.m. EDT, September 23) at Tropical Storm Ophelia weakens to a tropical depression about  south-southwest of Richmond, Virginia. 03:00 UTC (11:00 p.m. EDT, September 23) at Tropical Depression Ophelia degenerates to a remnant low about  south-southwest of Richmond, Virginia. September 27
 15:00 UTC (11:00 a.m. AST) at Tropical Storm Philippe reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  east of the northern Leeward Islands. September 28
 15:00 UTC (11:00 a.m. AST) at Tropical Storm Rina forms about  east of the northern Leeward Islands. September 30

 03:00 UTC (11:00 p.m. AST, September 29) at Tropical Storm Rina reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  east-northeast of the northern Leeward Islands. October
October 1
 21:00 UTC (5:00 p.m. AST) at Tropical Storm Rina weakens to a tropical depression about  northeast of the northern Leeward Islands. October 2
 03:00 UTC (11:00 p.m. AST, October 1) at Tropical Depression Rina degerates into a remnant low about  northeast of the northern Leeward Islands. 22:00 UTC (6:00 p.m. AST) at Tropical Storm Philippe makes landfall on Barbuda with sustained winds of , about  north of Antigua. October 6
 15:00 UTC (11:00 a.m. AST) at Tropical Storm Philippe transitions to a post-tropical cyclone about  south of Bermuda. October 11
 03:00 UTC (11:00 p.m. AST, October 10) at Tropical Depression Nineteen forms about  southwest of Cabo Verde. 09:00 UTC (5:00 a.m. AST) at Tropical Depression Nineteen strengthens into Tropical Storm Sean about  west-southwest of Cabo Verde. October 12
 03:00 UTC (11:00 p.m. AST, October 11) at Tropical Storm Sean weakens to a tropical depression about  west-southwest of Cabo Verde. 15:00 UTC (11:00 a.m. AST) at Tropical Depression Sean re-strengthens to a tropical storm about  west of Cabo Verde. October 13
 09:00 UTC (5:00 a.m. AST) at Tropical Storm Sean reaches peak intensity with maximum sustained winds of  and a minimum central pressure of , about  west of Cabo Verde. October 14
 15:00 UTC (11:00 a.m. AST) at Tropical Storm Sean weakens to a tropical depression about  east of the northern Leeward Islands. October 16
 03:00 UTC (11:00 p.m. AST, October 15) at Tropical Depression Sean degenerates into a remnant low about  east of the northern Leeward Islands. October 18
 21:00 UTC (5:00 p.m. AST) at Tropical Storm Tammy forms about  east of the Windward Islands. October 20
 14:00 UTC (10:00 a.m. AST) at Tropical Storm Tammy strengthens into a Category 1 hurricane about  northeast of the Barbados. October 22
 01:15 UTC (9:15 p.m. AST October 21) at Hurricane Tammy makes landfall with sustained winds of  on the island of Barbuda. October 23
 21:00 UTC (5:00 p.m. EDT) at Tropical Depression Twenty-One forms about  southeast of Bluefields, Nicaragua. October 24
 09:00 UTC (5:00 a.m. EDT) at Tropical Depression Twenty-One makes landfall about  north of Bluefields. 15:00 UTC (11:00 a.m. EDT) at Tropical Depression Twenty-One dissipates inland about  north-northwest of Bluefields. October 25

 09:00 UTC (5:00 a.m. AST) at Hurricane Tammy intensifies to Category 2 strength about  south-southeast of Bermuda. 15:00 UTC (11:00 a.m. AST) at Hurricane Tammy reaches peak intensity with maximum sustained winds of  and a minimum central pressure of  about  southeast of Bermuda. October 26
 03:00 UTC (11:00 p.m. AST, October 25) at Hurricane Tammy weakens to Category 1 strength about  east-southeast of Bermuda. 09:00 UTC (5:00 a.m. AST) at Hurricane Tammy transitions into a post-tropical cyclone about  east-southeast of Bermuda. October 27
 15:00 UTC (11:00 a.m. AST) at Extratropical Cyclone Tammy redevelops into a tropical storm about  east of Bermuda. October 29
 09:00 UTC (5:00 a.m. AST) at Tropical Storm Tammy transitions into a post-tropical cyclone about  east of Bermuda. November 
November 30
 The Atlantic hurricane season officially ends. See also

 Timeline of the 2023 Pacific hurricane season
 Tropical cyclones in 2023
 Lists of Atlantic hurricanes

Notes

References

External links 

 National Hurricane Center

2023
2023
Articles which contain graphical timelines