Atlantic Summary for November 2020
Monthly Summary

000 ABNT30 KNHC 011149 TWSAT Monthly Tropical Weather Summary NWS National Hurricane Center Miami FL 700 AM EST Sun Nov 1 2020 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: Tropical cyclone activity in the Atlantic basin during the month of October was quite busy with five tropical cyclones developing during the month. All five systems were named -- Gamma, Delta, Epsilon, Zeta, and Eta -- although Eta had become a tropical depression on October 31 and then was named early on November 1 (UTC time). Three of the storms became hurricanes with two, Delta and Epsilon, reaching major hurricane strength. Based on a 30-year climatology (1981-2010), two named storms typically form in the basin in October, with one of them becoming a hurricane. A major hurricane forms in the basin in October about once every three years. In terms of Accumulated Cyclone Energy (ACE), which measures the strength and duration of tropical storms and hurricanes, activity in the basin so far in 2020 has been well above average, more than 40 percent above the long-term mean. Reports on individual cyclones, when completed, are available at the National Hurricane Center website at www.hurricanes.gov/data/tcr/index.php?season=2020&basin=atl Summary Table Name Dates Max Wind (mph) --------------------------------------------------- TS Arthur 16-19 May 60* TS Bertha 27-28 May 50* TS Cristobal 1-9 Jun 60 TS Dolly 22-24 Jun 45 TS Edouard 4-6 Jul 45 TS Fay 9-11 Jul 60 TS Gonzalo 21-25 Jul 65 H Hanna 23-27 Jul 90 H Isaias 30 Jul-5 Aug 85 TD Ten 31 Jul-1 Aug 35 TS Josephine 11-16 Aug 45 TS Kyle 14-16 Aug 50 MH Laura 20-28 Aug 150 H Marco 20-25 Aug 75 H Nana 1-4 Sep 75 TS Omar 31 Aug-5 Sep 40 H Paulette 7-22 Sep 105 TS Rene 7-14 Sep 50 H Sally 11-17 Sep 105 MH Teddy 12-22 Sep 140 TS Vicky 14-17 Sep 50 TS Wilfred 18-20 Sep 40 SS Alpha 18 Sep 50 TS Beta 17-22 Sep 60 TS Gamma 2-5 Oct 70 MH Delta 4-10 Oct 145 MH Epsilon 19-26 Oct 115 H Zeta 24-29 Oct 110 TS Eta 31 Oct- 40 --------------------------------------------------- * Denotes a storm for which the post-storm analysis is complete. $$ Hurricane Specialist Unit
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