000 FZNT32 KNHC 190137 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 837 PM EST Sun Dec 18 2022 Marine Weather HF Voice Broadcast for the Gulf of Mexico Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. Synopsis for the Gulf of Mexico .SYNOPSIS...A cold front extends from near Everglades City, Florida to 24.5N87W where it continues as stationary to 22N93W. Low pressure 1014 mb is near 22N96W and extends along a trough from near Brownsville, Texas to 20.5N92W. The front will move southward across the SE Gulf into the Straits of Florida overnight, except lift northward over the western Gulf ahead of another low pressure moving through northeast Mexico. The whole front will lift northward Tue as a warm front while the low pressure moves into the north-central Gulf. A trailing cold front over the western Gulf will dissipate through mid week. Looking ahead, a stronger cold front may move off the Texas coast into the far northwest Gulf Thu night followed by near-gale or gale force winds and rough to very rough seas across the basin through Fri, with strong gales possible off Veracruz. Gulf of Mexico N of 26N W of 87W ...GALE CONDITIONS POSSIBLE THU NIGHT AND FRI... .TONIGHT...E to SE winds 20 to 25 kt. Seas 6 to 8 ft. .MON...SE winds 15 to 20 kt, becoming S to SW 10 to 15 kt early in the afternoon. Seas 6 to 8 ft. .MON NIGHT...W to NW winds 15 to 20 kt. Seas 5 to 7 ft. .TUE...N winds 20 to 25 kt. Seas 5 to 7 ft. .TUE NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 8 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...Variable winds less than 5 kt, becoming S to SW 10 kt late. Seas 3 to 5 ft. .THU...SW winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...W winds 10 to 15 kt, becoming N 30 to 35 kt late. Seas 4 to 6 ft, building to 7 to 10 ft. .FRI...N winds 30 to 35 kt. Seas 11 to 17 ft. .FRI NIGHT...N winds 20 to 25 kt. Seas 9 to 13 ft. Gulf of Mexico from 22N to 26N W of 87W ...GALE CONDITIONS POSSIBLE FRI... .TONIGHT...E winds 20 to 25 kt, becoming SW 10 kt early in the afternoon. Seas 6 to 9 ft. .MON NIGHT...N winds 10 kt, becoming NW to N 15 to 20 kt late. Seas 4 to 6 ft. .TUE...N winds 20 to 25 kt. Seas 6 to 8 ft. .TUE NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 8 ft. .WED...N to NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...Variable winds less than 5 kt, becoming SE to S 10 kt late. Seas 3 to 5 ft. .THU...S winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...S winds 10 kt, becoming NW to N 20 to 25 kt late. Seas 2 to 4 ft, building to 5 to 7 ft late. .FRI...N winds 30 to 40 kt. Seas 9 to 14 ft, building to 12 to 19 ft early in the afternoon. .FRI NIGHT...N winds 20 to 25 kt. Seas 11 to 17 ft. SW Gulf of Mexico S of 22N W of 87W ...GALE CONDITIONS POSSIBLE FRI AND FRI NIGHT... .TONIGHT...NW winds 10 to 15 kt. Seas 6 to 8 ft. .MON...S of 21N W of 95W, E to SE winds 10 kt early in the afternoon. Variable winds less than 5 kt early in the morning. Elsewhere, variable less than 5 kt. Seas 4 to 6 ft. .MON NIGHT...S of 21N W of 95W, SE winds 10 kt. Elsewhere, E to SE winds 10 kt early in the evening, becoming variable less than 5 kt. Seas 3 to 5 ft. .TUE...NW to N winds 20 to 25 kt. Seas 3 to 5 ft, building to 6 to 8 ft early in the afternoon. .TUE NIGHT...N winds 20 to 25 kt. Seas 6 to 9 ft. .WED...NW to N winds 20 to 25 kt S of 21N W of 95W, and N 10 to 15 kt elsewhere. Seas 6 to 8 ft. .WED NIGHT...N to NE winds 10 kt early in the evening, becoming variable less than 5 kt. Seas 4 to 6 ft. .THU...SE to S winds 10 kt. Seas 2 to 4 ft. .THU NIGHT...S of 21N W of 95W, variable less than 5 kt. Winds E to SE winds 10 kt early in the evening. Elsewhere, N winds late. Seas 2 to 4 ft. .FRI...S of 21N W of 95W, NW to N winds 20 to 30 kt, increasing to 35 to 45 kt early in the afternoon, Seas 4 to 6 ft, building to 9 to 14 ft early in the afternoon. Elsewhere, N winds 25 to 35 kt, Seas 4 to 6 ft, building to 11 to 17 ft early in the afternoon. .FRI NIGHT...NW to N winds 25 to 35 kt, diminishing to 20 to 25 kt late. Seas 12 to 19 ft. Gulf of Mexico E of 87W .TONIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...SE winds 20 to 25 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED...NE to E winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. .THU...W winds 15 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...SW to W winds 10 to 15 kt, becoming W 20 to 25 kt late. Seas 4 to 6 ft. .FRI...NW winds 20 to 30 kt. Seas 9 to 13 ft. .FRI NIGHT...NW to N winds 20 to 30 kt. Seas 10 to 15 ft.