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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Tue Aug 24 2021
For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
The Weather Prediction Center is issuing Public Advisories on
Post-Tropical Cyclone Henri, located inland near southern New
England.
1. A broad trough of low pressure is producing disorganized showers and
thunderstorms over the east-central tropical Atlantic more than 1000
miles west-northwest of the Cabo Verde Islands. Little development
is expected during the next day or two due to marginally conducive
ocean temperatures and strong upper-level winds. Afterwards,
environmental conditions are expected to become more favorable for
gradual development, and a tropical depression could form by the end
of the week while the system moves northwestward to northward at 10
to 15 mph over the central Atlantic.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...medium...50 percent.
2. A tropical wave over the eastern Caribbean Sea is expected to form a
broad area of low pressure over the southwestern Caribbean Sea later
this week. Thereafter, environmental conditions are forecast to be
favorable for gradual development, and a tropical depression could
form by the end of the week while the system moves
west-northwestward to northwestward over the northwestern Caribbean
Sea.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...medium...60 percent.
3. Another tropical wave over the far eastern tropical Atlantic located
about 500 miles south-southwest of the Cabo Verde Islands is
producing a concentrated area of showers and thunderstorms. This
activity has become a bit better organized tonight, and some
additional development is possible over the next several days while
this system moves westward to west-northwestward at 10 to 15 mph
over the eastern tropical Atlantic.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...medium...40 percent.
Public advisories issued by the Weather Prediction Center on
Post-Tropical Cyclone Henri can be found under AWIPS header
TCPAT3, WMO header WTNT33 KWNH, and on the web at
http://www.wpc.ncep.noaa.gov
Forecaster Papin/Beven
Original author: NHC
