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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM 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 of the northern Leeward 
Islands.

1. Shower and thunderstorm activity associated with an area of 
low pressure located several hundred miles south of the Cabo
Verde Islands continues to gradually become better organized.  
Environmental conditions are conducive for additional development, 
and a tropical depression or tropical storm is likely to form later 
today or tonight while the disturbance moves west-northwestward at 
10 to 15 mph over the eastern tropical Atlantic.  Additional 
information on this system, including gale warnings, can be found 
in High Seas Forecasts issued by Meteo France. 
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 5 days...high...90 percent.

2. Showers and thunderstorms remain disorganized in association with a 
a broad and elongated area of low pressure located several hundred 
miles southwest of the Cabo Verde Islands. Although environmental 
conditions are generally conducive for development during the next 
day or so, interaction of this system with the low pressure area 
located to its east is likely to hinder development after that time. 
The system is forecast to drift west-northwestward over the next 
few days.  
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 5 days...medium...50 percent.

3. An area of low pressure associated with the remnants of Peter is 
located several hundred miles east-northeast of Bermuda. Recent 
satellite wind data indicate that the circulation of the low has 
become less defined, and shower activity remains limited. The system 
is moving northeastward into a region of very strong upper-level 
winds, and significant development of this system is no longer 
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.

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

High Seas Forecasts issued by Meteo France can be found under WMO 
header FQNT50 LFPW and available on the web at
www.meteofrance.com/previsions-meteo-marine/bulletin/grandlarge/
metarea2

Forecaster Brown