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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Wed Sep 21 2022
For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
The National Hurricane Center is issuing advisories on Hurricane
Fiona, located northeast of the southeastern Bahamas, and on
Tropical Storm Gaston, located over the north-central Atlantic
1. Western Tropical Atlantic:
A tropical wave is producing shower and thunderstorm activity a few
hundred miles east of the southern Windward Islands. The system
continues to show signs of organization and it will likely become a
tropical depression within the next two or three days. The
disturbance is forecast to move west-northwestward across the
southern Windward Islands by late today and then move toward the
central Caribbean Sea later this week. Interests in the Windward
Islands should closely monitor the progress of this system as heavy
rainfall and gusty winds could affect these islands beginning later
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 5 days...high...90 percent.
2. Eastern Tropical Atlantic:
A tropical wave is forecast to move off the west coast of Africa on
Thursday. Environmental conditions are forecast to be conducive for
at least gradual development of the system for a couple days
thereafter while the system moves slowly northward, between west
Africa and the Cabo Verde Islands, through the end of the week.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...medium...50 percent.
3. East Central Tropical Atlantic:
A tropical wave located several hundred miles west-southwest of the
Cabo Verde Islands is producing disorganized shower activity. Slow
development of this system is possible over the next several days
as it moves northwestward and then westward over the tropical
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.
Public Advisories on Tropical Storm Gaston are issued under WMO
header WTNT33 KNHC and under AWIPS header MIATCPAT3.
Forecast/Advisories on Tropical Storm Gaston are issued under
WMO header WTNT23 KNHC and under AWIPS header MIATCMAT3.