000 FZNT27 KNHC 201518 OFFN06 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 1018 AM EST Thu Dec 20 2018 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... .SYNOPSIS...A strong cold front extends from a 1002 mb low pressure system centered over southeastern Louisiana to 26N89W to 22N93W and to 18N95W. Numerous showers and thunderstorms are along and ahead of the front. The low pressure system will strengthen as it lifts north-northeast through Fri night, with the cold front quickly moving east of the Gulf tonight. Strong to gale force southerly winds will develop ahead of the front today, followed by westerly gale force winds behind the front, with very large seas expected to build over the east-central waters tonight and Fri. Scattered showers are expected behind the front. High pres will shift eastward across the central gulf on Sat, then move across the Florida Panhandle on Sun. Northwest Gulf of Mexico ...GALE WARNING... .TODAY...NW winds 25 to 35 kt. Seas 7 to 10 ft. Scattered showers. .TONIGHT...NW winds 25 to 35 kt. Seas 10 to 15 ft in NW swell. Scattered showers. .FRI...NW winds 25 to 35 kt, diminishing to 20 to 25 kt late in the afternoon. Seas 8 to 13 ft. .FRI NIGHT...W to NW winds 20 to 25 kt, becoming SW to W 10 to 15 kt after midnight. Seas 5 to 7 ft, subsiding to 3 to 5 ft late. .SAT...S winds 15 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 15 to 20 kt. Seas 3 to 5 ft. .SUN...S to SW winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. .MON...SE winds 5 to 10 kt. Seas 3 to 4 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. North Central and Northeast Gulf of Mexico ...GALE WARNING... .TODAY...W winds 20 to 30 kt. Seas 6 to 9 ft. Scattered showers and thunderstorms. .TONIGHT...W to NW winds 25 to 35 kt. Seas 11 to 16 ft. Scattered showers. .FRI...W to NW winds 25 to 35 kt. Seas 14 to 19 ft in W swell. Scattered showers. .FRI NIGHT...NW winds 20 to 30 kt, diminishing to 15 to 20 kt late. Seas 8 to 13 ft in W swell. .SAT...NW to N winds 10 to 15 kt, becoming NE 5 to 10 kt in the afternoon. Seas 5 to 7 ft in W swell, subsiding to 3 to 5 ft in the afternoon. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE to S winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...SE to S winds 5 to 10 kt. Seas 2 to 3 ft. .MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...E to SE winds 5 to 10 kt. Seas 2 to 3 ft.