010
ABNT30 KNHC 011155
TWSAT

Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM EDT Tue Oct 1 2024

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

Tropical cyclone activity this September was close to average in
terms of the number of named storms and hurricanes that formed in
the basin.  Six named storms formed in September with three of
them becoming hurricanes, and one of those becoming a major
hurricane (Helene). Based on a 30-year climatology (1991-2020),
between 4-5 named storms typically develop in September, with
three of them becoming hurricanes, and one of those becoming a
major hurricane.

During the month, Hurricane Francine made landfall in southern
Louisiana as a category 2 hurricane, and Helene made landfall as a
category 4 hurricane along the coast of the Florida Big Bend.

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 2024 is about 80 percent of the long-term
(1991-2020) mean.

Reports on individual cyclones, when completed, are available at the
National Hurricane Center website at
www.hurricanes.gov/data/tcr/index.php?season=2024&basin=atl

Summary Table

Name                     Dates               Max Wind (mph)
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TS Alberto              19-20 Jun                 50*
MH Beryl             28 Jun-9 Jul                165
TS Chris     30 Jun-1 Jul                 45*
H  Debby                  3-9 Aug                 80
H  Ernesto              12-20 Aug                100
H  Francine              9-12 Sep                100
TS Gordon               11-17 Sep                 45
MH Helene               24-27 Sep                140
H  Isaac                26-30 Sep                105
TS Joyce                27-30 Sep                 50
TS Kirk              29 Sep-                      60

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Dates are based on Coordinated Universal Time (UTC).
* Denotes a storm for which the post-storm analysis is complete.

$$
Hurricane Specialist Unit