000
ABPZ30 KNHC 011549
TWSEP
Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM PST Tue Dec 1 2020
For the eastern North Pacific, east of 140 degrees west longitude:
Two tropical storms, Odalys and Polo, formed in the basin in
November. Although the long-term (1981-2010) average is one
tropical storm forming in the basin every second or third year, this
is the third straight November with at least one named storm
forming. In fact, named storms have formed in November in six of
the past seven years in the basin.
Overall, the 2020 eastern Pacific hurricane season featured an
average number of named storms, but below average hurricane and
major hurricane activity. There were sixteen named storms, of which
four became hurricanes and three became major hurricanes - category
3 or higher on the Saffir-Simpson Hurricane Wind Scale. This
compares to the long-term averages of fifteen named storms, eight
hurricanes, and four major hurricanes. There were also five tropical
depressions that did not reach tropical storm strength.
In terms of Accumulated Cyclone Energy (ACE), which measures the
strength and duration of tropical storms and hurricanes, activity in
the basin for 2020 was below normal, more than 40 percent below the
long-term 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=2020&basin=epac
Summary Table
Name Dates Max Wind (mph)
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TD One-E 25-26 Apr 35*
TS Amanda 30-31 May 40*
TS Boris 24-27 Jun 40
TD Four-E 30 Jun 35
TS Cristina 6-12 Jul 70*
TD Six-E 13-14 Jul 35
TD Seven-E 20-21 Jul 35
MH Douglas 20-28 Jul 130*
H Elida 8-12 Aug 100*
TD Ten-E 13-16 Aug 35
TS Fausto 16-17 Aug 40
MH Genevieve 16-21 Aug 130
TS Hernan 26-28 Aug 45
TS Iselle 26-30 Aug 60
TS Julio 5-7 Sep 45
TS Karina 13-16 Sep 60
TS Lowell 20-25 Sep 50
MH Marie 29 Sep-6 Oct 130
TS Norbert 5-15 Oct 50
TS Odalys 3-6 Nov 50
TS Polo 17-19 Nov 45
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* Denotes a storm for which the post-storm analysis is complete.
$$
Hurricane Specialist Unit