Wed, 01 Sep 2021 12:43:05 +0000 Wed, 01 Sep 2021 12:43:05 +0000 National Hurricane Center - Atlantic Monthly Tropical Weather Summary https://www.nhc.noaa.gov/ none nhcwebmaster@noaa.gov (nhcwebmaster) en-us nhcwebmaster@noaa.gov (nhcwebmaster) https://www.nhc.noaa.gov/gifs/xml_logo_nhc.gif https://www.nhc.noaa.gov/ NOAA logo 95 45 000
ABNT30 KNHC 011242
TWSAT

Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM EDT Wed Sep 1 2021

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

Tropical cyclone activity in the Atlantic basin during August was
above normal in terms of the numbers of named storms, hurricanes,
and major hurricanes. Six named storms formed in the Atlantic basin
in August, with three of them becoming hurricanes, and two of those
becoming major hurricanes. Grace was a category 3 hurricane when it
made landfall just south of Tuxpan, Mexico, on 22 August, and Ida
was a category 4 hurricane when it made landfall near Port Fourchon,
Louisiana, on 29 August. One tropical depression formed on the last
day of the month. Based on a 30-year climatology (1991-2020), 3 or
4 named storms typically develop in August, with one or two of them
becoming hurricanes. A major hurricane forms in August every 1 to 2
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 2021 is above normal, almost 25 percent
above the long-term mean. The 11 named storms through the end of
August is well above the 30-year (1991-2020) average of 6 to 7
named storms by the end of the month.

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

Summary Table

Name Dates Max Wind (mph)
---------------------------------------------------
TS Ana 22-23 May 45*
TS Bill 14-16 Jun 60
TS Claudette 19-22 Jun 45
TS Danny 28-29 Jun 45
H Elsa 1-9 Jul 85
TS Fred 11-18 Aug 65
MH Grace 13-21 Aug 125
H Henri 16-23 Aug 75
MH Ida 26 Aug- 150
TS Kate 28 Aug- 45
TS Julian 29-30 Aug 60
TD Twelve 31 Aug- 35
---------------------------------------------------

* Denotes a storm for which the post-storm analysis is complete.

$$
Hurricane Specialist Unit

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