FZNT25 KNHC 202010

OFFN04



NAVTEX Marine Forecast

NWS National Hurricane Center Miami, FL

410 PM EDT Sun Sep 20 2026



...Please refer to Coastal Waters Forecasts (CWF) available

through NOAA Weather Radio and other means for detailed

Coastal Waters Forecasts...



Southeast Gulf of America



.SYNOPSIS...Weak ridging across the southeastern U.S. will

maintain generally gentle to moderate winds across the basin

through mid week. A vigorous upper-level low and associated

surface low or trough over the central Gulf will contribute to

scattered showers and thunderstorms over the eastern Gulf

through the midweek, with the Straits of Florida the most active

area. Looking ahead, a cold front may sink into the northern

Gulf Thu night through Fri, leading to a modest increase in

winds across the basin. 



.TONIGHT...NE winds 5 to 10 kt, shifting to SE after midnight.

Seas 2 ft or less. Scattered showers and isolated tstms. 

.MON...SE winds 5 to 10 kt. Seas 2 ft or less. Scattered showers

and isolated tstms. 

.MON NIGHT...SE winds 5 to 10 kt. Seas 2 ft or less. Scattered

showers and isolated tstms. 

.TUE...SE winds 5 to 10 kt. Seas 2 ft or less. Scattered showers

and isolated tstms. 

.TUE NIGHT...E to SE winds 5 to 10 kt. Seas 2 ft or less. 

.WED...E to SE winds 5 to 10 kt. Seas 2 ft or less. 

.WED NIGHT...E to SE winds 5 to 10 kt. Seas 2 ft or less. 

.THU...E to SE winds 10 to 15 kt. Seas 3 to 4 ft. 

.THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 

.FRI...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. 

.FRI NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.  



Within 200 nm east of the coast of Florida



.SYNOPSIS...A very weak pressure gradient across the western

Atlantic will promote variable gentle to moderate winds across

forecast waters through early Thu. A vigorous upper-level low 

over the Gulf of America and Florida, and abundant tropical 

moisture across the Atlantic will force scattered showers and 

thunderstorms across the waters west of 70W through Wed. Low

pressure will deepen offshore of the middle Atlantic coast of

the U.S. late Wed through Fri, allowing a cold front to move

into the far NW waters and N Florida Thu through Fri. The front

will be  accompanied by increasing winds and the potential for

large N-NE  swell.



.TONIGHT...NE winds 5 kt, shifting to SE to S after midnight.

Seas 2 ft or less. Scattered showers and isolated tstms. 

.MON...S winds 5 to 10 kt. Seas 2 ft or less. Scattered showers

and isolated tstms. 

.MON NIGHT...SE to S winds 10 to 15 kt S of 27N, and SE to S 5 to

10 kt N of 27N. Seas 2 ft or less. Scattered showers and isolated

tstms. 

.TUE...S winds 5 to 10 kt. Seas 2 ft or less. Scattered showers

and isolated tstms. 

.TUE NIGHT...SE to S winds 5 to 10 kt. Seas 2 ft or less. 

.WED...S to SW winds 5 to 10 kt, shifting to N to NE in the

afternoon. Seas 2 ft or less. 

.WED NIGHT...S winds less than 5 kt. Seas 2 ft or less. 

.THU...NW winds 5 to 10 kt. Seas 2 ft or less, building to 3 to

4 ft in the afternoon. 

.THU NIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. 

.FRI...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. 

.FRI NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.