ZCZC MIATWOAT ALL
TTAA00 KNHC DDHHMM
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 PM EDT Wed Sep 29 2021
For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
The National Hurricane Center is issuing advisories on Hurricane
Sam, located several hundred miles east-northeast of the northern
Leeward Islands, and on newly formed Tropical Depression Twenty,
located over the eastern tropical Atlantic.
1. Showers and thunderstorms remain disorganized in association with a
trough of low pressure located several hundred miles southwest of
the Cabo Verde Islands. Some slow development of this system is
possible during the next couple of days while it drifts
west-northwestward across the central tropical Atlantic.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...low...30 percent.
2. An area of low pressure associated with the remnants of Peter
located several hundred miles south of the coast of Newfoundland
continues to produce disorganized showers and thunderstorms. This
system is moving northeastward over cooler waters and into a region
of very strong upper-level winds, and significant development is
not anticipated. Additional information on this system can be found
in High Seas Forecasts issued by the National Weather Service.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...10 percent.
Public Advisories on Tropical Depression Twenty are issued under
WMO header WTNT35 KNHC and under AWIPS header MIATCPAT5.
Forecast/Advisories on Tropical Depression Twenty are issued under
WMO header WTNT25 KNHC and under AWIPS header MIATCMAT5.
High Seas Forecasts issued by the National Weather Service can be
found under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and
online at ocean.weather.gov/shtml/NFDHSFAT1.php
Forecaster Cangialosi
Original author: NHC
