000
ABNT30 KNHC 011137
TWSAT
Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM EDT Sun Oct 1 2023
For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
Tropical cyclone activity in the Atlantic basin was generally above
normal in September with the formation of seven named storms, with
three of those becoming hurricanes, and one becoming a major
hurricane (Lee). In addition, Tropical Storms Gert and Jose and
Hurricane Franklin all completed their life cycle early in
September. 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.
Lee became a category 5 hurricane in the central tropical Atlantic
and later on its large wind field affected portions of coastal New
England in the United States, and Nova Scotia and New Brunswick in
Canada as the hurricane became post-tropical. Later in the month,
Ophelia made landfall in North Carolina as a strong tropical storm.
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 2023 has been about 33 percent above average
compared to 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=2023&basin=atl
Summary Table
Name Dates Max Wind (mph)
-----------------------------------------------------------
Unnamed STS 16-17 Jan 70*
TS Arlene 1-3 Jun 40*
TS Bret 19-24 Jun 70
TS Cindy 22-26 Jun 60*
H Don 14-24 Jul 75
TS Emily 20-21 Aug 50
MH Franklin 20 Aug- 1 Sep 150
TS Gert 19- 4 Sep 60
TS Harold 21-23 Aug 50
MH Idalia 26-31 Aug 130
TS Jose 29 Aug- 1 Sep 60
TS Katia 1- 4 Sep 60
MH Lee 5-16 Sep 165
H Margot 7-17 Sep 90
H Nigel 15-22 Sep 100
TS Ophelia 21-24 Sep 70
TS Philippe 23- Sep 50
TS Rina 28- Sep 50
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* Denotes a storm for which the post-storm analysis is complete.
$$
Hurricane Specialist Unit |
