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