000
ABNT30 KNHC 011119
TWSAT
Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM EDT Fri Oct 1 2021
For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
Tropical cyclone activity in the Atlantic basin during September was
above normal in terms of the numbers of named storms, and major
hurricanes. Nine named storms formed in the Atlantic basin in
September, with three of them becoming hurricanes, and two of those
becoming major hurricanes. Larry was a long-lived category 3
hurricane that ultimately made landfall in Newfoundland as a
Category 1 hurricane, while Nicholas made landfall near Sargent
Beach, Texas, as a Category 1 hurricane. Based on a 30-year
climatology (1991-2020), four named storms typically develop in
September, with three of them becoming hurricanes, and one of those
becoming a major hurricane.
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 has also been above normal, almost 50
percent above the long-term mean. The 20 named storms through the
end of September is well above the 30-year (1991-2020) average of 9
to 10 named storms by the end of September.
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 14-15 Jun 65*
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-2 Sep 150
TS Kate 28 Aug-1 Sep 45
TS Julian 29-30 Aug 60
MH Larry 31 Aug-11 Sep 125
TS Mindy 8-10 Sep 45
H Nicholas 12-17 Sep 75
TS Odette 17-18 Sep 45
TS Peter 18-22 Sep 50
TS Rose 19-23 Sep 50
MH Sam 22 Sep- 150
STS Teresa 24-25 Sep 45
TS Victor 29 Sep- 60
---------------------------------------------------
* Denotes a storm for which the post-storm analysis is complete.
$$
Hurricane Specialist Unit |
