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Timeline of the 2023 Atlantic hurricane season

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Timeline of the
2023 Atlantic hurricane season
Season summary map
Season boundaries
First system formedJanuary 16, 2023
Last system dissipatedOctober 28, 2023
Strongest system
NameLee
Maximum winds165 mph (270 km/h)
(1-minute sustained)
Lowest pressure926 mbar (hPa; 27.35 inHg)
Longest lasting system
NamePhilippe
Duration13.25 days
Storm articles
Other years
2021, 2022, 2023, 2024, 2025

The 2023 Atlantic hurricane season saw an above average number of named storms and an average number of hurricanes and major hurricanes (category 3 or higher on the 5-level Saffir–Simpson wind speed scale). There were twenty named storms during the season;[nb 1] seven of them strengthened into hurricanes, and three of those reached major hurricane intensity.[1] The season officially began on June 1, 2023, and ended on November 30. These dates, adopted by convention, historically describe the period in each year when most subtropical or tropical cyclones form in the Atlantic.[2] 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.[3] The last system to dissipate was Hurricane Tammy, on October 28.

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).[4] 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.[5] 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

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Hurricane TammyTropical Storm Philippe (2023)Tropical Storm Ophelia (2023)Hurricane Lee (2023)Hurricane IdaliaTropical Storm HaroldHurricane Franklin (2023)Tropical Storm Bret (2023)Saffir–Simpson scale

January

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January 16

The unnamed subtropical storm off the coast of New England on January 16

January 17

June

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June 1

June 2

June 3

June 19

June 22

Tropical Storm Bret (left) and Tropical Depression Four (right) approaching the Windward Islands on June 22

June 23

June 24

June 26

July

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July 14

July 16

July 17

Hurricane Don off the coast of Atlantic Canada on July 22

July 18

July 22

  • 18:00 UTC (2:00 p.m. AST) at 39°30′N 50°06′W / 39.5°N 50.1°W / 39.5; -50.1 – Tropical Storm Don strengthens into a Category 1 hurricane and simultaneously reaches peak intensity with maximum sustained winds of 75 mph (120 km/h) and a minimum central pressure of 986 mbar (29.12 inHg), about 1,230 mi (1,980 km) west-northwest of the Azores.[12]

July 23

July 24

August

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August 19

August 20

August 21

August 22

August 23

August 26

August 27

August 28

August 29

Hurricane Franklin displaying annular characteristics on August 29

August 30

August 31

September

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September 1

Three tropical cyclones, Franklin (top center), Gert (bottom center), and Jose (right), simultaneously active in the open Atlantic on September 1; Post‑Tropical Cyclone Idalia (left) is also visible

September 2

September 3

September 4

September 5

September 6

September 7

September 8

Hurricane Lee at peak intensity on September 8

September 9

September 10

September 11

September 12

September 13

September 14

September 15

September 16

September 17

September 18

September 19

Hurricane Nigel nearing Category 2 strength, as viewed from the International Space Station on September 19

September 20

September 22

September 23

September 24

September 25

September 28

September 29

Infrared satellite loop of tropical storms Philippe (left) and Rina (right) early on September 29

October

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October 1

October 2

October 6

October 10

October 11

October 12

October 14

October 15

October 18

October 20

October 22

October 23

October 24

October 25

Hurricane Tammy at near-peak intensity on October 25

October 26

October 27

October 29

November

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  • No tropical cyclones form in the basin during the month of November.[nb 10]

November 30

  • The Atlantic hurricane season officially ends.[2]

See also

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Notes

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  1. ^ The total includes an unnamed, belatedly recognized subtropical storm in January.
  2. ^ This system was not given the subtropical storm designation by the National Hurricane Center until May 11, 2023, following a review of data gathered on it operationally. While retroactively recognized as the first storm of the 2023 Atlantic hurricane season, it was not given a name.[3]
  3. ^ The National Hurricane Center continued to monitor Cindy's remnants until June 28 due to potential for regeneration.[10]
  4. ^ The National Hurricane Center continued to monitor Emily's remnants until August 25 due to potential for regeneration.[16]
  5. ^ Due to the threat the developing system posed to south Texas, the National Hurricane Center initiated advisories on it, designating it Potential Tropical Cyclone Nine at 15:00 UTC (10:00 a.m. CDT) on August 21.[17]
  6. ^ The National Hurricane Center continued to monitor ex-Franklin until September 7 due to potential for regeneration.[34]
  7. ^ At 20:00 UTC (4:00 p.m. AST) on September 16, Extratropical Cyclone Lee made landfall with sustained winds of 65 mph (100 km/h) on Long Island in southwestern Nova Scotia. It then moved across New Brunswick, Prince Edward Island, and Newfoundland, before dissipating late on September 18.[36]
  8. ^ Due to the threat the developing system posed to the southeastern U.S. coast, the National Hurricane Center initiated advisories on it, designating it Potential Tropical Cyclone Sixteen at 15:00 UTC (11:00 a.m. EDT) on September 21.[43]
  9. ^ The remnants of the depression crossed over Central America and contributed to the formation of Tropical Storm Pilar in the Eastern Pacific.[52]
  10. ^ At 21:00 UTC on November 16 (4:00 p.m. EST), the National Hurricane Center initiated advisories on a disturbance over the southwestern Caribbean Sea due to the threat it posed to Jamaica, eastern Cuba, Haiti, southeastern Bahamas, and Turks and Caicos Islands, designating it Potential Tropical Cyclone Twenty-Two.[53] The last advisory on the system was issued at 03:00 UTC on November 18 (10:00 p.m. EST, November 17), after it became evident that the disturbance would not become a tropical cyclone or bring sustained tropical-storm-force winds to land areas along its projected path.[54]

References

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  1. ^ Henson, Bob; Masters, Jeff (November 30, 2023). "The unusual 2023 Atlantic hurricane season ends". New Haven, Connecticut: Yale Climate Connections. Archived from the original on November 30, 2023. Retrieved November 30, 2023.
  2. ^ a b c "Hurricanes Frequently Asked Questions". Miami, Florida: Atlantic Oceanographic and Meteorological Laboratory. June 1, 2023. Archived from the original on July 4, 2024. Retrieved June 1, 2023.
  3. ^ a b Barker, Aaron (May 11, 2023). "First storm of 2023 hurricane season formed in January, NHC says". Fox Weather. Archived from the original on May 12, 2023. Retrieved May 12, 2022.
  4. ^ "Understanding the Date/Time Stamps". Miami, Florida: NOAA National Hurricane Center. Archived from the original on April 12, 2021. Retrieved July 10, 2020.
  5. ^ "Update on National Hurricane Center Products and Services for 2020" (PDF). Miami, Florida: National Hurricane Center. April 20, 2020. Archived (PDF) from the original on August 27, 2021. Retrieved May 12, 2023.
  6. ^ a b c d Papin, Philippe; Cangialosi, John; Beven, John (July 6, 2023). Tropical Cyclone Report: Unnamed Subtropical Storm (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on July 6, 2023. Retrieved July 6, 2023.
  7. ^ a b c d e Reinhart, Brad (July 13, 2023). Tropical Cyclone Report: Tropical Storm Arlene (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on July 13, 2023. Retrieved July 13, 2023.
  8. ^ a b c d e Brown, Daniel; Kelly, Larry (October 24, 2023). Tropical Cyclone Report: Tropical Storm Bret (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on November 28, 2023. Retrieved November 1, 2023.
  9. ^ a b c Cangialosi, John (July 27, 2023). Tropical Cyclone Report: Tropical Storm Cindy (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on July 27, 2023. Retrieved July 27, 2023.
  10. ^ Berg, Robbie (June 28, 2023). Seven-Day Graphical Tropical Weather Outlook (Report). Miami, Florida: National Hurricane Center. Archived from the original on July 23, 2023. Retrieved July 23, 2023.
  11. ^ Beven, John (June 25, 2023). Remnants of Cindy Advisory Number 16 (Report). Miami, Florida: National Hurricane Center. Archived from the original on January 28, 2024. Retrieved June 26, 2023.
  12. ^ a b c d e f g Landsea, Christopher (November 15, 2023). Tropical Cyclone Report: Hurricane Don (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on December 4, 2023. Retrieved December 5, 2023.
  13. ^ a b c d e f g h Kelly, Larry (November 30, 2023). Tropical Cyclone Report: Tropical Storm Gert (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on December 1, 2023. Retrieved December 2, 2023.
  14. ^ a b c Cangialosi, John (November 8, 2023). Tropical Cyclone Report: Tropical Storm Emily (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on November 9, 2023. Retrieved November 9, 2023.
  15. ^ Papin, Philippe (August 20, 2023). Tropical Storm Franklin Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Retrieved August 21, 2023.
  16. ^ Reinhart, Brad (August 25, 2023). Seven-Day Graphical Tropical Weather Outlook (Report). Miami, Florida: National Hurricane Center. Archived from the original on August 26, 2023. Retrieved August 26, 2023.
  17. ^ Cangialosi, John (August 21, 2023). Potential Tropical Cyclone Nine Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Archived from the original on August 21, 2023. Retrieved August 22, 2023.
  18. ^ a b c d e Pasch, Richard; Mahoney, Aiden; Nepaul, Heather (January 30, 2024). Tropical Cyclone Report: Tropical Storm Harold (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on January 31, 2024. Retrieved February 1, 2024.
  19. ^ Berg, Robbie (August 23, 2023). Tropical Storm Franklin Intermediate Advisory Number 11A (Report). Miami, Florida: National Hurricane Center. Archived from the original on January 28, 2024. Retrieved August 23, 2023.
  20. ^ a b c d e f g h i j Cangialosi, John; Alaka, Laura (February 13, 2024). Tropical Cyclone Report: Hurricane Idalia (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on February 14, 2024. Retrieved March 10, 2024.
  21. ^ Kelly, Larry; Pasch, Richard (August 26, 2023). Hurricane Franklin Advisory Number 24 (Report). Miami, Florida: National Hurricane Center. Retrieved August 26, 2023.
  22. ^ Kelly, Larry; Pasch, Richard (August 27, 2023). Hurricane Franklin Advisory Number 28 (Report). Miami, Florida: National Hurricane Center. Retrieved August 27, 2023.
  23. ^ Papin, Philippe (August 28, 2023). Hurricane Franklin Advisory Number 31 (Report). Miami, Florida: National Hurricane Center. Archived from the original on August 28, 2023. Retrieved August 28, 2023.
  24. ^ Kelly, Larry; Brown, Daniel (August 28, 2023). Hurricane Franklin Tropical Cyclone Update (Report). Miami, Florida: National Hurricane Center. Archived from the original on August 28, 2023. Retrieved August 28, 2023.
  25. ^ Cangialosi, John (August 28, 2023). Hurricane Franklin Intermediate Advisory Number 33A (Report). Miami, Florida: National Hurricane Center. Archived from the original on August 29, 2023. Retrieved August 29, 2023.
  26. ^ a b c d Brown, Daniel (December 19, 2023). Tropical Cyclone Report: Tropical Storm Jose (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on December 19, 2023. Retrieved December 19, 2023.
  27. ^ Blake, Eric (August 29, 2023). Hurricane Idalia Advisory Number 10A (Report). Miami, Florida: National Hurricane Center. Archived from the original on August 29, 2023. Retrieved March 10, 2024.
  28. ^ Kelly, Larry (August 29, 2023). Hurricane Franklin Intermediate Advisory Number 36A (Report). Miami, Florida: National Hurricane Center. Archived from the original on September 4, 2023. Retrieved August 29, 2023.
  29. ^ Blake, Eric (August 30, 2023). Hurricane Idalia Intermediate Advisory Number 14A (Report). Miami, Florida: National Hurricane Center. Archived from the original on August 30, 2023. Retrieved August 30, 2023.
  30. ^ Papin, Philippe (August 30, 2023). Hurricane Franklin Advisory Number 39 (Report). Miami, Florida: National Hurricane Center. Archived from the original on September 27, 2024. Retrieved August 30, 2023.
  31. ^ Berg, Robbie (August 30, 2023). Tropical Storm Idalia Advisory Number 16A (Report). Miami, Florida: National Hurricane Center. Archived from the original on March 10, 2024. Retrieved March 10, 2024.
  32. ^ a b c d e Papin, Philippe (January 30, 2024). Tropical Cyclone Report: Tropical Storm Katia (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on January 31, 2024. Retrieved February 1, 2024.
  33. ^ Reinhart, Brad (August 31, 2023). Hurricane Franklin Advisory Number 45 (Report). Miami, Florida: National Hurricane Center. Archived from the original on August 31, 2023. Retrieved August 31, 2023.
  34. ^ Kelly, Larry (September 7, 2023). Seven-Day Graphical Tropical Weather Outlook (Report). Miami, Florida: National Hurricane Center. Archived from the original on September 27, 2024. Retrieved September 7, 2023.
  35. ^ Reinhart, Brad (September 1, 2023). Post-Tropical Storm Franklin Advisory Number 49 (Report). Miami, Florida: National Hurricane Center. Retrieved September 1, 2023.
  36. ^ a b c d e f g h i j k l m n o Blake, Eric; Nepaul, Heather (March 21, 2024). Tropical Cyclone Report: Hurricane Lee (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on April 18, 2024. Retrieved March 22, 2024.
  37. ^ a b c d e f Berg, Robbie (January 11, 2024). Tropical Cyclone Report: Hurricane Margot (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on January 27, 2024. Retrieved February 1, 2024.
  38. ^ Cangialosi, John; Konarik, Stephen (September 13, 2023). Hurricane Lee Intermediate Advisory Number 32A (Report). Miami, Florida: National Hurricane Center. Archived from the original on March 23, 2024. Retrieved March 22, 2024.
  39. ^ Brown, Daniel (September 14, 2023). Hurricane Lee Advisory Number 36A (Report). Miami, Florida: National Hurricane Center. Archived from the original on March 23, 2024. Retrieved March 22, 2024.
  40. ^ a b c d e f g Kelly, Larry (December 19, 2023). Tropical Cyclone Report: Hurricane Nigel (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on December 19, 2023. Retrieved December 21, 2023.
  41. ^ Berg, Robbie (September 16, 2023). Hurricane Lee Intermediate Advisory Number 43A (Report). Miami, Florida: National Hurricane Center. Archived from the original on March 23, 2024. Retrieved March 22, 2024.
  42. ^ a b c d Brown, Daniel; Hagen, Andrew; Alaka, Laura (February 23, 2024). Tropical Cyclone Report: Tropical Storm Ophelia (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on September 27, 2024. Retrieved March 10, 2024.
  43. ^ Brown, Daniel (September 21, 2023). Potential Tropical Cyclone Sixteen Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Archived from the original on September 30, 2023. Retrieved September 22, 2023.
  44. ^ Reinhart, Brad (September 22, 2023). Tropical Storm Ophelia Intermediate Advisory Number 5A (Report). Miami, Florida: National Hurricane Center. Archived from the original on September 27, 2024. Retrieved September 22, 2023.
  45. ^ Kelly, Larry; Cangialosi, John (September 23, 2023). Tropical Storm Ophelia Advisory Number 7A (Report). Miami, Florida: National Hurricane Center. Archived from the original on March 10, 2024. Retrieved March 10, 2024.
  46. ^ a b c d e Papin, Philippe (April 3, 2024). Tropical Cyclone Report: Tropical Storm Philippe (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on April 4, 2024. Retrieved April 3, 2024.
  47. ^ Berg, Robbie (September 23, 2023). Tropical Depression Ophelia Intermediate Advisory Number 10A (Report). Miami, Florida: National Hurricane Center. Archived from the original on September 26, 2023. Retrieved September 23, 2023.
  48. ^ a b c Reinhart, Brad (November 22, 2023). Tropical Cyclone Report: Tropical Storm Rina (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on November 22, 2023. Retrieved November 22, 2023.
  49. ^ a b c d e f g Kelly, Larry (February 21, 2024). Tropical Cyclone Report: Tropical Storm Sean (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on February 26, 2024. Retrieved March 10, 2024.
  50. ^ a b c d e f g h Kelly, Larry (March 8, 2024). Tropical Cyclone Report: Hurricane Tammy (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on March 9, 2024. Retrieved March 10, 2024.
  51. ^ a b c Hagen, Andrew (February 15, 2024). Tropical Cyclone Report: Tropical Depression Twenty-One (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on March 10, 2024. Retrieved March 10, 2024.
  52. ^ Blake, Eric (March 8, 2024). Tropical Cyclone Report: Tropical Storm Pilar (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on March 8, 2024. Retrieved March 10, 2024.
  53. ^ Berg, Robbie (November 16, 2023). Potential Tropical Cyclone Twenty-Two Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Archived from the original on November 16, 2023. Retrieved November 18, 2023.
  54. ^ Reinhart, Brad (November 17, 2023). Potential Tropical Cyclone Twenty-Two Discussion Number 6 (Report). Miami, Florida: National Hurricane Center. Archived from the original on November 18, 2023. Retrieved November 18, 2023.
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