000
ABNT30 KNHC 011159
TWSAT
Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM EDT Wed Nov 1 2023
For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
Tropical cyclone activity in the Atlantic basin was near normal in
October with the formation of two named storms, with one of those
becoming a hurricane (Tammy). One tropical depression also formed.
In addition, Tropical Storms Philippe and Rina both completed their
life cycle early in October. Based on a 30-year climatology
(1991-2020), between 2-3 named storms typically develop in October,
with one of them becoming a hurricane, and one a major hurricane.
Philippe which formed in September affected portions of the northern
Leeward Islands as a tropical storm early in the month. Tammy also
affected portions of the Leeward Islands in October. Tammy made
landfall as a hurricane on Barbuda during the evening of 21 October.
Tropical Depression Twenty-One moved inland over Nicaragua a few
days later bringing heavy rainfall with flash and urban flooding.
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 30 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- 6 Oct 50
TS Rina 28 Sep- 1 Oct 50
TS Sean 11-15 Oct 45
H Tammy 18-29 Oct 105
TD Twenty-One 23-24 Oct 30
-----------------------------------------------------------
* Denotes a storm for which the post-storm analysis is complete.
$$
Hurricane Specialist Unit |
