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ABPZ30 KNHC 011532
TWSEP

Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM PST Wed Dec 1 2021

For the eastern North Pacific, east of 140 degrees west longitude:

Two tropical cyclones formed in November in the eastern Pacific basin (Sandra and Terry). Based on a 30-year climatology (1991-2020), one named storm typically forms in November every second or third year. However, this is the fourth straight November with at least one named storm forming. In addition, both Sandra and Terry were tropical storms simultaneously, which is the first time this has occurred in the eastern Pacific in November.

Overall, the 2021 eastern Pacific hurricane season featured an above average number of named storms, an average amount of hurricanes, but a below average number of major hurricanes. There were nineteen named storms, eight hurricanes, and two major hurricanes. This compares to the long-term averages of fifteen named storms, eight hurricanes, and four major hurricanes. In terms of Accumulated Cyclone Energy (ACE), which measures the strength and duration of tropical storms and hurricanes, the activity in the Eastern Pacific was about 30 percent below the long-term (1991-2020) average.

Reports on individual cyclones, when completed, are available at the National Hurricane Center website at: www.nhc.noaa.gov/data/tcr/index.php?season=2021&basin=epac

Summary Table

Name Dates Max Wind (mph)
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TS Andres 9-11 May 40* TS Blanca 30 May- 3 Jun 60* TS Carlos 12-16 Jun 50 TS Dolores 18-20 Jun 70 H Enrique 25-30 Jun 90* MH Felicia 14-20 Jul 145* TS Guillermo 17-19 Jul 60* H Hilda 30 Jul- 6 Aug 85 TS Jimena 30 Jul- 6 Aug 40 TS Ignacio 1- 3 Aug 40* TS Kevin 7-12 Aug 60 MH Linda 10-20 Aug 130 TS Marty 23-24 Aug 45* H Nora 25-30 Aug 85 H Olaf 7-11 Sep 100 H Pamela 10-13 Oct 75* H Rick 22-26 Oct 105 TS Terry 4-10 Nov 45 TS Sandra 7- 9 Nov 40
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* Denotes a storm for which the post-storm analysis is complete.

$$ Hurricane Specialist Unit

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