000 FZNT25 KNHC 212015 OFFN04 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 415 PM EDT Wed Apr 21 2021 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... Southeast Gulf of Mexico .SYNOPSIS...A cold front extends from Naples, Florida southwestward to 23N88W and to the eastern Bay of Campeche. Another cold front extends from the NE Gulf to 27N90W to inland northeastern Mexico. Fresh north to northeast winds are behind the second cold front. The first front will exit the southeastern early this evening. The second cold front will reach from west- central Florida to the central Gulf by late tonight, then weaken early Thu as it reaches from southwest Florida to near 23N90W. Fresh to strong southerly return flow will develop over the western Gulf Fri, shift to the central Gulf early Sat and diminish late Sat as another cold front enters the far NW Gulf, and moves across the rest of the Gulf through Sun night as it weakens. In its wake, high pressure will shift eastward across the Gulf through Mon night. Scattered showers and thunderstorms to continue over the southeastern Gulf waters through early tonight. .TONIGHT....NE winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated thunderstorms early, then isolated showers and thunderstorms. .THU...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. Isolated showers and thunderstorms. .THU NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. Isolated showers and thunderstorms. .FRI...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. Isolated showers and thunderstorms. .FRI NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...SE to S winds 15 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...S to SW winds 5 to 10 kt. Seas 3 to 4 ft. .SUN NIGHT...SW winds 10 kt, shifting to E late. Seas 2 to 4 ft. .MON...NE to E winds 5 to 10 kt. Seas 2 to 4 ft. .MON NIGHT...NE to E winds 5 to 10 kt. Seas 2 to 4 ft. Within 200 nm east of the coast of Florida .SYNOPSIS...A cold front extends from 31N73W to Stuart, Florida. This front will weaken as it reaches from near 31N67W to central Cuba by early Thu, while at the same time a second cold front that will move off the southeastern U.S. coast this evening will reach from near 31N70W to South Florida. The second front will merge with the remnants of the first front Thu afternoon from 31N68W to west-central Cuba. This front will also weaken as it moves across the waters NE of the Bahamas through late Fri. Fresh to strong southwest winds ahead of the first front N of 29N will lift north of the area Thu. Strong northwest winds behind the second front will diminish Thu. High pressure over area behind the front on Thu will slide eastward through Sat night as a stronger cold front approaches the southeastern U.S. coast. This front is expected to move across the NW and north-central waters Sun and Sun night, and the NE waters Mon and Mon night while weakening. Fresh to strong southerly winds will develop over the NW waters Sat and Sat night, and shift eastward over the far north-central and NE waters through Sun night. Scattered showers and thunderstorms are possible ahead of this front. .TONIGHT...S of 27N, SE winds 5 to 10 kt. Seas 3 to 4 ft. N of 27N, W winds 10 to 15 kt becoming NW 20 to 25 kt late. Seas 3 to 5 ft, building to 5 to 7 ft late. Scattered showers and thunderstorms S of 27N. .THU...N to NE winds 5 to 10 kt S of 27N, and N to NE 10 to 15 kt N of 27N. Seas 3 to 4 ft. Scattered showers and thunderstorms S of 27N. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Isolated showers S of 27N. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. Isolated showers S of 27N. .FRI NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...SE winds 15 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 15 to 20 kt. Seas 3 to 5 ft. .SUN...SW winds 15 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 5 to 10 kt, shifting to N to NE after midnight. Seas 3 to 4 ft. .MON...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft.