Timeline of the 2020 Atlantic hurricane season
The 2020 Atlantic hurricane season is an ongoing event in the annual tropical cyclone season in the north Atlantic Ocean. NOAA's Climate Prediction Center is forecasting a hyperactive 2020 Atlantic hurricane season.[nb 1][1] The season officially began on June 1 and will end on November 30. These dates, adopted by convention, historically describe the period in each year when most Atlantic tropical systems form.[2] However, storm formation is possible at any time of the year, as demonstrated in 2020 by the formation of the season's first named storm, Tropical Storm Arthur, on May 16.
| Timeline of the 2020 Atlantic hurricane season | |||||
|---|---|---|---|---|---|
 Season summary map | |||||
| Season boundaries | |||||
| First system formed | May 16, 2020 | ||||
| Last system dissipated | Season ongoing | ||||
| Strongest system | |||||
| Name | Hanna | ||||
| Maximum winds | 90 mph (150 km/h) | ||||
| Lowest pressure | 973 mbar (hPa; 28.73 inHg) | ||||
| Longest lasting system | |||||
| Name | Cristobal | ||||
| Duration | 8 days | ||||
| |||||
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).[3] In this time line, all information is listed by UTC first with the respective local time included in parentheses.[nb 2]
Timeline
May
May 16
- 21:00 UTC (5:00 p.m. EDT) at 28.4°N 78.6°W – Tropical Depression One forms about 125 mi (200 km)[nb 3] east of Melbourne, Florida.[5]
May 17
- 03:00 UTC (11:00 p.m. EDT May 16) at 29.4°N 77.7°W – Tropical Depression One intensifies into Tropical Storm Arthur approximately 195 mi (305 km) east-northeast of Cape Canaveral, Florida.[6]
May 19
- 03:00 UTC (11:00 p.m. EDT May 18) at 36.4°N 72.4°W – Tropical Storm Arthur reaches its peak intensity with maximum sustained winds of 60 mph (95 km/h) and a minimum barometric pressure of 991 mbar (hPa; 29.27 inHg) about 190 mi (310 km) east-northeast of Cape Hatteras, North Carolina.[7]
- 15:00 UTC (11:00 a.m. AST) at 36.8°N 68.6°W – Tropical Storm Arthur transitions into an extratropical cyclone roughly 380 mi (610 km) northwest of Bermuda.[8]
May 27
- 12:30 UTC (8:30 a.m. EDT) at 32.7°N 79.4°W – Tropical Storm Bertha forms near the South Carolina coast, just 30 mi (50 km) east-southeast of Charleston, South Carolina.[9]
- 13:30 UTC (9:30 a.m. EDT) at 32.9°N 79.7°W – Tropical Storm Bertha makes landfall about 20 mi (30 km) east of Charleston, South Carolina, at peak intensity with winds of 50 mph (85 km/h) and a central pressure of 1004 mbar (hPa; 29.65 inHg).[10]
- 18:00 UTC (2:00 p.m. EDT) at 33.7°N 80.2°W – Tropical Storm Bertha weakens to a tropical depression approximately 65 mi (105 km) north-northwest of Charleston, South Carolina.[11]
May 28
- 09:00 UTC (5:00 a.m. EDT) at 38.3°N 80.8°W – Tropical Depression Bertha transitions to an extratropical cyclone roughly 80 mi (130 km) north-northwest of Roanoke, Virginia.[12]
June
June 1
- The 2020 Atlantic hurricane season officially begins.[2]
- 21:00 UTC (4:00 p.m. CDT) at 19.6°N 91.2°W – Tropical Depression Three forms about 50 mi (80 km) west-southwest of Campeche, Mexico.[13]
June 2
- 18:00 UTC (1:00 p.m. CDT) at 19.2°N 92.8°W – Tropical Depression Three intensifies into Tropical Storm Cristobal roughly 155 mi (255 km) west-southwest of Campeche, Mexico.[14]
June 3
- 13:35 UTC (8:35 a.m. CDT) at 18.7°N 92.1°W – Tropical Storm Cristobal makes first landfall about 20 mi (30 km) west of Ciudad del Carmen, Mexico, at peak intensity with winds of 60 mph (95 km/h) and a central pressure of 994 mbar (hPa; 29.35 inHg).[15]
June 4
- 15:00 UTC (10:00 a.m. CDT) at 17.6°N 91.0°W – Tropical Storm Cristobal weakens to a tropical depression roughly 160 mi (260 km) south-southwest of Campeche, Mexico.[16]
June 5
- 18:00 UTC (1:00 p.m. CDT) at 20.5°N 89.8°W – Tropical Depression Cristobal strengthens to a tropical storm about 35 mi (60 km) south-southeast of Mérida, Mexico.[17]
June 7
- 22:00 UTC (5:00 p.m. CDT) at 29.3°N 89.8°W – Tropical Storm Cristobal makes second landfall about 50 mi (80 km) south-southeast of New Orleans, Louisiana at peak intensity with winds of 50 mph (85 km/h) and a central pressure of 992 mbar (hPa; 29.29 inHg).[18]
June 8
- 09:00 UTC (4:00 a.m. CDT) at 31.0°N 91.2°W – Tropical Storm Cristobal weakens to a tropical depression about 40 mi (65 km) north of Baton Rouge, Louisiana.[19]
June 10
- 03:00 UTC (10:00 p.m. CDT June 9) at 43.5°N 90.4°W – Tropical Depression Cristobal becomes a post-tropical cyclone about 60 mi (110 km) northwest of Madison, Wisconsin with maximum sustained winds of 35 mph (85 km/h) and a central pressure of 986 mbar (hPa; 29.21 inHg).[20]
June 22
- 21:00 UTC (5:00 p.m. AST) at 38.2°N 65.7°W – Subtropical Depression Four forms about 310 mi (495 km) southeast of Nantucket, Massachusetts.[21]
June 23
- 16:15 UTC (12:15 p.m. AST) at 39.4°N 61.9°W – Subtropical Depression Four transitions to a tropical cyclone, simultaneously intensifies into Tropical Storm Dolly, and reaches its peak intensity with maximum sustained winds of 45 mph (75 km/h) and a minimum barometric pressure of 1002 mbar (hPa; 29.59 inHg) about 370 mi (600 km) south-southeast of Halifax, Nova Scotia.[22]
June 24
- 09:00 UTC (5:00 a.m. AST) at 41.7°N 59.0°W – Tropical Storm Dolly weakens into a tropical depression roughly 450 mi (725 km) southwest of Cape Race, Newfoundland.[23]
- 15:00 UTC (11:00 a.m. AST) at 42.5°N 57.8°W – Tropical Depression Dolly degenerates into a remnant low about 370 mi (595 km) southwest of Cape Race, Newfoundland.[24]
July
July 4
- 15:00 UTC (11:00 a.m. AST) at 31.1°N 68.7°W – Tropical Depression Five forms about 245 mi (390 km) west-southwest of Bermuda.[25]
July 6
- 03:00 UTC (11:00 p.m. AST July 5) at 37.2°N 56.9°W – Tropical Depression Five strengthens into Tropical Storm Edouard about 685 mi (1100 km) south-southwest of Cape Race, Newfoundland.[26]
- 15:00 UTC (11:00 a.m. AST) at 40.8°N 50.0°W – Tropical Storm Edouard intensifies to a peak intensity of 1007 mb (29.74 inHg) and with maximum sustained winds of 45 mph (75 km/h) roughly 435 mi (700 km) south-southeast of Cape Race, Newfoundland.[27]
- 21:00 UTC (5:00 p.m. AST) at 42.7°N 46.0°W – Tropical Storm Edouard becomes post-tropical about 445 mi (715 km) southeast Cape Race, Newfoundland.[28]
July 9
- 21:00 UTC (5:00 p.m. EDT) at 35.5°N 74.9°W – A complex of thunderstorms associated with a low-pressure area located near the Outer Banks of North Carolina develops into Tropical Storm Fay about 195 mi (310 km) south of Ocean City, Maryland.[29][30]
July 10
- 21:00 UTC (5:00 p.m. EDT) at 39.5°N 74.3°W – Tropical Storm Fay makes landfall about 10 mi (15 km) north-northeast of Atlantic City, New Jersey, about 90 mi (145 km) south of New York City, with maximum sustained winds of 50 mph (85 km/h) and a minimium central pressure of 998 mb (29.47 inHg).[31]
July 11
- 06:00 UTC (2:00 a.m. EDT) at 41.5°N 74.0°W – Tropical Storm Fay weakens to a tropical depression while over southeastern New York, roughly 50 mi (80 km) north of New York City, as its maximum sustained wind speed drops to 35 mph (55 km/h).[32]
- 09:00 UTC (5:00 a.m. EDT) at 42.4°N 73.9°W – Tropical Depression Fay degenerates into a post-tropical low about 30 mi (45 km) south of Albany, New York.[33]
July 21
- 21:00 UTC (5:00 p.m. AST) at 9.8°N 40.4°W – Tropical Depression Seven forms about 1185 mi (1905 km) west-southwest of the Cabo Verde Islands.[34]
July 22
- 12:50 UTC (8:50 a.m. AST) at 9.9°N 43.1°W – Tropical Depression Seven intensifies into Tropical Storm Gonzalo about 1290 mi (2075 km) west-southwest of the Cabo Verde Islands.
July 23
- 03:00 UTC (10:00 p.m. CDT, July 22) at 25.9°N 88.2°W – Tropical Depression Eight forms about 530 mi (855 km) east-southeast of Port O'Connor, Texas.[35]
July 24
- 03:00 UTC (10:00 p.m. CDT, July 23) at 26.2°N 91.4°W – Tropical Depression Eight strengthens into Tropical Storm Hanna about 380 mi (610 km) east-southeast of Port O'Connor, Texas.
July 25
- 12:00 UTC (7:00 a.m. CDT) at 27.1°N 96.0°W – Tropical Storm Hanna intensifies into a Category 1 hurricane about 90 miles east-northeast of Port Mansfield, Texas.
- 18:00 UTC (2:00 p.m. AST) at 10.8°N 61.9°W – Tropical Storm Gonzalo weakens to a tropical depression.
- 21:00 UTC (5:00 p.m. AST) at 11.0°N 63.0°W – Tropical Depression Gonzalo opens up into a tropical wave.
- 22:00 UTC (5:00 p.m. CDT) at 26.8°N 97.4°W – Hurricane Hanna makes landfall about 15 mi (20 km) north of Port Mansfield, Texas, about 70 mi (110 km) south of Corpus Christi, Texas, with maximum sustained winds of 90 mph (150 km/h) and a minimium central pressure of 973 mb (28.74 inHg).
July 26
- 06:00 UTC (2:00 a.m. EDT) at 26.5°N 98.5°W – Hurricane Hanna weakens to a tropical storm while over southern Texas, roughly 30 mi (50 km) northwest of McAllen, Texas, as its maximum sustained wind speed drops to 70 mph (115 km/h).
- 21:00 UTC (4:00 p.m. CDT) at 25.6°N 100.6°W – Tropical Storm Hanna weakens to a tropical depression while over Northeastern Mexico, roughly 35 mi (55 km) west-southwest of Monterrey, Mexico, as its maximum sustained wind speed drops to 35 mph (55 km/h).
July 28
- 15:00 UTC (11:00 a.m. AST) at 13.8°N 53.7°W – Potential Tropical Cyclone Nine forms about 585 mi (940 km) east-southeast of the Leeward Islands.[36]
July 29
- 03:00 UTC (11:00 p.m. AST) at 15.8°N 67.0°W – Potential Tropical Cyclone Nine organizes into Tropical Storm Isaias about 155 mi (250 km) south of Ponce, Puerto Rico, about 265 mi (430 km) southeast of Santo Domingo, Dominican Republic.[37]
July 30
- 00:00 UTC (8:00 p.m. AST) at 19.9°N 71.2°W – Tropical Storm Isaias makes landfall on the southern coast of Dominican Republic.[38]
- 03:40 UTC (11:40 p.m. AST) at 20.3°N 72.1°W – Tropical Storm Isaias strengthens into a hurricane about (70 mi) (110 mi) of Great Inagua Island.[39]
August
September
October
See also
- Timeline of the 2020 Pacific hurricane season
- Timeline of the 2020 Pacific typhoon season
Notes
- An average hurricane season produces 12 named storms, of which 6 become hurricanes, including 3 major hurricanes.[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.[4]
- 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
- Gaches, Lauren (May 21, 2020). "Busy Atlantic hurricane season predicted for 2020". noaa.gov. Retrieved July 2, 2020.
- 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.
- "Understanding the Date/Time Stamps". miami, Florida: NOAA National Hurricane Center. Retrieved July 10, 2020.
- "Update on National Hurricane Center Products and Services for 2020" (PDF). Miami, Florida: National Hurricane Center. April 20, 2020. Retrieved May 17, 2020.
- Cangialosi, John (May 16, 2020). Tropical Depression One Advisory Number 1 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved May 17, 2020.
- Stewart, Stacy (May 16, 2020). Tropical Storm Arthur Advisory Number 2 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved May 17, 2020.
- Stewart, Stacy (May 18, 2020). Tropical Storm Arthur Advisory Number 10 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved May 19, 2020.
- Blake, Eric (May 19, 2020). Post-Tropical Cyclone Arthur Advisory Number 12 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved May 19, 2020.
- Brennan, Michael (May 27, 2020). Tropical Storm Bertha Special Advisory Number 1 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved May 28, 2020.
- Beven, Jack (May 27, 2020). Tropical Storm Bertha Tropical Cyclone Update (Report). Miami, Florida: NWS National Hurricane Center. Retrieved May 28, 2020.
- Latto, Andrew (May 27, 2020). Tropical Depression Bertha Intermediate Advisory Number 2A (Report). Miami, Florida: NWS National Hurricane Center. Retrieved May 28, 2020.
- Burke, Patrick C. (May 28, 2020). Post-Tropical Cyclone Bertha Advisory Number 5 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved May 28, 2020.
- Brown, Daniel (June 1, 2020). Tropical Depression Three Public Advisory Number 1 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 4, 2020.
- Pasch, Richard (June 2, 2020). Tropical Storm Cristobal Intermediate Advisory Number 4A (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 4, 2020.
- Pasch, Richard; Berg, Robbie (June 3, 2020). Tropical Storm Cristobal Tropical Cyclone Update (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 4, 2020.
- Pasch, Richard (June 4, 2020). Tropical Depression Cristobal Public Advisory Number 12 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 4, 2020.
- Pasch, Richard (June 5, 2020). Tropical Storm Cristobal Intermediate Advisory Number 16A (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 6, 2020.
- Brown, Daniel; Latto, Andrew (June 7, 2020). Tropical Storm Cristobal Tropical Cyclone Update (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 7, 2020.
- Beven, Jack (June 8, 2020). Tropical Depression Cristobal Advisory Number 27 (Report). Miami Florida: NWS National Hurricane Center. Retrieved June 25, 2020.
- 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.
- Stewart, Stacy (June 22, 2020). Subtropical Depression Four Public Advisory Number 1 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 24, 2020.
- Stewart, Stacy (June 23, 2020). Tropical Storm Dolly Tropical Cyclone Update (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 24, 2020.
- Latto, Andrew (June 24, 2020). Tropical Depression Dolly Public Advisory Number 8 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 24, 2020.
- Latto, Andrew (June 24, 2020). Post-Tropical Cyclone Dolly Public Advisory Number 9 (Report). Miami, Florida: NWS National Hurricane Center. Retrieved June 24, 2020.
- Zelinsky, David (July 4, 2020). Tropical Depression Five Advisory Number 1 (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 6, 2020.
- Blake, Eric (July 5, 2020). Tropical Storm Edouard Advisory Number 7 (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 6, 2020.
- Brown, Daniel (July 6, 2020). Tropical Storm Edouard Advisory Number 9 (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 7, 2020.
- Zelinsky, David (July 6, 2020). Post-Tropical Cyclone Edouard Advisory Number 10 (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 7, 2020.
- Brown, Daniel (July 9, 2020). Tropical Weather Outlook (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 9, 2020.
- Brown, Daniel (July 9, 2020). Tropical Storm Fay Advisory Number 1 (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 9, 2020.
- Brennan, Michael (July 10, 2020). Tropical Storm Fay Advisory Number 6 (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 10, 2020.
- Pasch, Richard (July 11, 2020). Tropical Depression Fay Intermediate Advisory Number 7A (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 11, 2020.
- Pasch, Richard (July 11, 2020). Post-Tropical Cyclone Fay Advisory Number 8 (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 11, 2020.
- Beven, John L. (July 21, 2020). Tropical Depression Seven Advisory Number 1 (Report). Miami Florida: NWS National Hurricane Center. Retrieved July 21, 2020.
- Cangialosi, John P. (July 22, 2020). "Tropical Depression Eight Advisory Number 1". Miami Florida: NWS National Hurricane Center. Retrieved July 23, 2020.
- Beven, John L. (July 28, 2020). "Potential Tropical Cyclone Nine Advisory Number 1". Miami Florida: NWS National Hurricane Center. Retrieved July 30, 2020.
- Pasch, Richard (July 29, 2020). "Tropical Storm Isaias Advisory Number 7". Miami Florida: NWS National Hurricane Center. Retrieved July 30, 2020.
- Pasch, Richard (July 30, 2020). "Tropical Storm Isaias Advisory Number 10A". Miami Florida: NWS National Hurricane Center. Retrieved July 30, 2020.
- Blake, Eric (July 30, 2020). "Tropical Storm Isaias Tropical Cyclone Update". Miami Florida: NWS National Hurricane Center. Retrieved July 30, 2020.
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