Timeline of the 2020 Atlantic hurricane season

The 2020 Atlantic hurricane season was the most active and the seventh costliest Atlantic hurricane season on record. In addition, it was the fifth consecutive above average Atlantic hurricane season from 2016 onward, though it was the first extremely active season since 2017. The season officially began on June 1 and ended on November 30. These dates, adopted by convention, historically describe the period in each year when most Atlantic tropical systems form.[1] However, storm formation is possible at any time of the year, as demonstrated in 2020 with the formation of named storms, Tropical Storm Arthur, and Tropical Storm Bertha on May 16 and May 27 respectively.

Timeline of the
2020 Atlantic hurricane season
Season summary map
Season boundaries
First system formedMay 16, 2020
Last system dissipatedNovember 18, 2020
Strongest system
NameIota
Maximum winds160 mph (260 km/h)
Lowest pressure917 mbar (hPa; 27.08 inHg)
Longest lasting system
NamePaulette
Duration18 days
Storm articles

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).[2] In this time line, all information is listed by UTC first with the respective local time included in parentheses.[nb 1]

Timeline

Hurricane IotaHurricane EtaHurricane ZetaHurricane DeltaTropical Storm Gamma (2020)Subtropical Storm Alpha (2020)Tropical Storm Beta (2020)Hurricane TeddyHurricane SallyHurricane PauletteHurricane Nana (2020)Hurricane Marco (2020)Hurricane LauraHurricane IsaiasHurricane Hanna (2020)Tropical Storm Fay (2020)Tropical Storm Cristobal (2020)Tropical Storm Bertha (2020)Tropical Storm Arthur (2020)Saffir–Simpson scale

May

May 16

May 17

May 19

Arthur off the east coast of North Carolina near peak intensity on May 18

May 27

May 28

June

June 1

June 2

June 3

June 4

June 5

June 7

June 8

June 10

June 22

June 23

June 24

July

July 4

July 6

July 9

July 10

July 11

July 21

July 22

July 23

July 24

July 25

Hurricane Hanna at peak intensity making landfall in Texas on July 25.

July 26

July 28

July 29

July 30

July 31

August

Hurricane Isaias near peak intensity over the Bahamas on July 31.

August 1

August 2

August 4

August 5

August 11

August 13

August 14

August 15

August 16

August 20

August 21

August 22

Hurricane Laura near peak intensity while approaching southwestern Louisiana on August 26

August 23

August 24

August 25

August 26

August 27

August 28

August 29

August 31

September

September 1

September 2

September 3

September 4

September 5

September 7

Hurricane Paulette just before its peak intensity north of Bermuda on September 14

September 8

September 9

September 11

September 12

September 13

September 14

Hurricane Sally intensifying before landfall in Alabama on September 16

September 15

September 16

September 17

September 18

October

October 2

October 3

November

November 30

  • The 2020 Atlantic hurricane season officially ends.[1]

See also

Notes

  1. Five such time zones are utilized in the basin: Cape Verde Time for systems south of 25°N and east of 30°W, Greenwich Mean Time north of 25°N and east of 45°W, Eastern Time between 70°W and 85°W, Central Time between 85°W and 100°W, and Atlantic Time in the remainder of the basin.[3]
  2. The figures for maximum sustained winds and position estimates are rounded to the nearest 5 units (knots, miles, or kilometers), following the convention used in the National Hurricane Center's operational products for each storm. All other units are rounded to the nearest digit.

References

  1. Dorst, Neal (June 1, 2018). "Hurricane Season Information". Frequently Asked Questions About Hurricanes. Miami, Florida: NOAA Atlantic Oceanographic and Meteorological Laboratory. Retrieved June 29, 2020.
  2. "Understanding the Date/Time Stamps". miami, Florida: NOAA National Hurricane Center. Retrieved July 10, 2020.
  3. "Update on National Hurricane Center Products and Services for 2020" (PDF). Miami, Florida: National Hurricane Center. April 20, 2020. Retrieved May 17, 2020.
  4. Latto, Andy (September 10, 2020). Tropical Storm Arthur (PDF) (Report). Miami, Florida: NWS National Hurricane Center. Retrieved February 2, 2020.
  5. Cangialosi, John (September 23, 2020). Tropical Storm Bertha (PDF) (Report). Miami, Florida: NWS National Hurricane Center. Retrieved February 4, 2021.
  6. Berg, Robbie (January 13, 2021). Tropical Storm Cristobal (PDF) (Report). Miami, Florida: NWS National Hurricane Center. Retrieved February 5, 2021.
  7. Pasch, Richard (June 4, 2020). Tropical Depression Cristobal Public Advisory Number 12 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 4, 2020.
  8. Pasch, Richard (June 5, 2020). Tropical Storm Cristobal Intermediate Advisory Number 16A (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 6, 2020.
  9. Brown, Daniel; Latto, Andrew (June 7, 2020). Tropical Storm Cristobal Tropical Cyclone Update (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 7, 2020.
  10. Beven, Jack (June 8, 2020). Tropical Depression Cristobal Advisory Number 27 (Report). Miami Florida: NWS National Hurricane Center. Retrieved June 25, 2020.
  11. Burke, Patrick C. (June 9, 2020). Post-Tropical Cyclone Cristobal Advisory Number 34 (Report). College Park, Maryland: NWS Weather Prediction Center. Retrieved June 10, 2020.
  12. Stewart, Stacy (June 22, 2020). Subtropical Depression Four Public Advisory Number 1 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 24, 2020.
  13. Stewart, Stacy (June 23, 2020). Tropical Storm Dolly Tropical Cyclone Update (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 24, 2020.
  14. Latto, Andrew (June 24, 2020). Tropical Depression Dolly Public Advisory Number 8 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 24, 2020.
  15. Latto, Andrew (June 24, 2020). Post-Tropical Cyclone Dolly Public Advisory Number 9 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 24, 2020.
  16. Zelinsky, David (July 4, 2020). Tropical Depression Five Public Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Retrieved July 6, 2020.
  17. Blake, Eric (July 5, 2020). Tropical Storm Edouard Public Advisory Number 7 (Report). Miami, Florida: National Hurricane Center. Retrieved July 6, 2020.
  18. Brown, Daniel (July 6, 2020). Tropical Storm Edouard Public Advisory Number 9 (Report). Miami, Florida: National Hurricane Center. Retrieved July 7, 2020.
  19. Zelinsky, David (July 6, 2020). Post-Tropical Cyclone Edouard Public Advisory Number 10 (Report). Miami, Florida: National Hurricane Center. Retrieved July 7, 2020.
  20. Brown, Daniel (July 9, 2020). Tropical Storm Fay Public Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Retrieved July 9, 2020.
  21. Brennan, Michael (July 10, 2020). Tropical Storm Fay Public Advisory Number 6 (Report). Miami, Florida: National Hurricane Center. Retrieved July 10, 2020.
  22. Pasch, Richard (July 11, 2020). Tropical Depression Fay Intermediate Advisory Number 7A (Report). Miami, Florida: National Hurricane Center. Retrieved July 11, 2020.
  23. Pasch, Richard (July 11, 2020). Post-Tropical Cyclone Fay Public Advisory Number 8 (Report). Miami, Florida: National Hurricane Center. Retrieved July 11, 2020.
  24. Jack Beven (July 21, 2020). Tropical Depression Seven Public Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Retrieved July 21, 2020.
  25. Jack Beven. "Tropical Storm GONZALO Update Statement". www.nhc.noaa.gov. Retrieved 2020-11-17.
  26. Cangialosi, John P. (July 22, 2020). Tropical Depression Eight Public Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Retrieved July 23, 2020.
  27. Stewart, Stacy R. "Hurricane HANNA Public Advisory 10A". www.nhc.noaa.gov. Retrieved 2020-11-17.
  28. Jack Beven (July 28, 2020). Potential Tropical Cyclone Nine Public Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Retrieved July 30, 2020.
  29. Pasch, Richard (July 29, 2020). Tropical Storm Isaias Public Advisory Number 7 (Report). Miami, Florida: National Hurricane Center. Retrieved July 30, 2020.
  30. Pasch, Richard (July 30, 2020). Tropical Storm Isaias Public Advisory Number 10A (Report). Miami, Florida: National Hurricane Center. Retrieved July 30, 2020.
  31. Blake, Eric (July 30, 2020). Tropical Storm Isaias Tropical Cyclone Update (Report). Miami, Florida: National Hurricane Center. Retrieved July 30, 2020.
  32. Daniel Brown (July 31, 2020). Tropical Depression Ten Public Advisory Number 1 (Report). Miami, Florida: National Hurricane Center. Retrieved September 17, 2020.
  33. Stacy R. Stewart (August 1, 2020). "Hurricane Isaias Discussion Number 4". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 1, 2020.
  34. Andrew Latto (August 1, 2020). "Tropical Depression Ten Discussion Number 4". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 1, 2020.
  35. David Zelinsky (August 2, 2020). "Remnants of Ten Discussion Number 6". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved August 2, 2020.
  36. Pasch, Richard. "Tropical Depression Twenty-Five Advisory Number 1". nhc.noaa.gov. Retrieved December 30, 2020.
  37. Cagialosi, John. "Tropical Storm Gamma Intermediate Advisory Number 2A". nhc.noaa.gov. Retrieved December 30, 2020.
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