Timeline of the 2020 Atlantic hurricane season

The 2020 Atlantic hurricane season was the most active Atlantic hurricane season on record in terms of number of named storms. Additionally, it was as an above-average season for tropical cyclones for the fifth consecutive year.[nb 2][2] The season officially began on June 1, 2020, and ended on November 30, 2020. These dates, adopted by convention, historically delimit the period each year when most Atlantic tropical systems form.[3] However, storm formation is possible at any time of the year, as was the case this season, when its first two named storms, Tropical Storm Arthur and Tropical Storm Bertha, formed on May 16 and May 27, respectively. The final storm, Hurricane Iota, dissipated on November 18.

Timeline of the
2020 Atlantic hurricane season
A map of the tracks of all the storms 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 winds155 mph (250 km/h)
Lowest pressure917 mbar (hPa; 27.08 inHg)
Longest lasting system
NameEta
Duration11.75[nb 1] days
Storm articles
Other years
2018, 2019, 2020, 2021, 2022

Altogether, the season produced 31 tropical or subtropical cyclones, all but one of which became a named storm. Of the 30 named storms, 14 became hurricanes, and seven further intensified into major hurricanes.[nb 3] It was the second and final season to use the Greek letter storm naming system, the first being 2005.[5] Hurricane Laura produced catastrophic storm surge levels, heavy rainfall, and spawned over a dozen tornadoes after striking Louisiana on August 27 with winds of 150 mph (240 km/h). The storm was responsible for 81 deaths and it caused over US$19 billion in damage across the Greater Antilles and the Southern United States.[6] Causing significant late-season loss of life and widespread destruction were November hurricanes Eta and Iota, which made landfall in Central America as Category 4 storms just two weeks apart.[2] The storms left a toll of 184 deaths and 110 missing across the region, and thousands of families lost their homes and livelihoods.[7] In March 2021, the names Laura, Eta and Iota were retired from reuse in the North Atlantic by the World Meteorological Organization due to the extraordinary amount of damage and number of fatalities they caused.[8]

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).[9] 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.[10] 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

Hurricane IotaHurricane EtaHurricane ZetaHurricane Epsilon (2020)Hurricane DeltaHurricane GammaTropical Storm Beta (2020)Subtropical Storm Alpha (2020)Hurricane TeddyHurricane SallyHurricane PauletteHurricane Nana (2020)Hurricane Marco (2020)Hurricane LauraHurricane IsaiasHurricane Hanna (2020)Tropical Storm Fay (2020)Tropical storms Amanda and CristobalTropical Storm Bertha (2020)Tropical Storm Arthur (2020)Saffir–Simpson scale

May

May 16

May 17

May 19

Tropical Storm Arthur off the North Carolina coast near peak intensity on May 18

May 27

May 28

June

June 1

June 2

June 3

Tropical Storm Cristobal shortly after landfall in Campeche on June 3

June 4

June 5

June 6

June 7

June 8

June 9

June 10

June 22

June 23

June 24

July

July 4

July 6

July 7

July 9

July 10

Tropical Storm Fay at peak intensity shortly before landfall in New Jersey on 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 30

July 31

August

August 1

Hurricane Isaias intensifying near the Carolinas on August 3

August 2

August 3

August 4

August 5

August 11

August 13

August 14

August 15

August 16

August 20

August 21

August 22

August 23

Marco over the Gulf of Mexico and Laura over Hispaniola on August 23

August 24

August 25

August 26

August 27

August 28

August 29

August 31

September

September 1

September 3

Infrared imagery of Hurricane Nana at peak intensity while making landfall in Belize on September 3

September 4

September 5

September 7

Map plotting the track and the intensity of Paulette, the season's longest-lived storm

September 8

September 9

September 10

September 11

September 12

September 13

September 14

Five simultaneous tropical cyclones active in the Atlantic on September 14: Sally (left), Paulette (center left), Rene (center right), Teddy (bottom right), and Vicky (far right)

September 15

September 16

September 17

September 18

September 19

September 20

September 21

September 22

September 23

October

October 2

Hurricane Gamma making landfall on the Yucatán Peninsula at peak intensity on October 3

October 3

October 4

October 5

October 6

October 7

October 8

Hurricane Delta nearing its secondary peak intensity on October 8

October 9

October 10

October 19

October 21

October 22

October 24

October 25

October 26

October 27

October 28

October 29

October 31

November

November 1

November 2

November 3

Hurricane Eta shortly before landfall in Nicaragua on November 3

November 4

November 5

November 6

November 7

November 8

November 9

November 10

November 11

November 12

November 13

November 15

November 16

Satellite loop of Hurricane Iota rapidly strengthening to near peak intensity while approaching Nicaragua on November 16

November 17

November 18

November 30

  • The 2020 Atlantic hurricane season officially ends.[3]

See also

Notes

References

External links