000 FZNT32 KNHC 130237 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 937 PM EST Thu Dec 12 2019 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 complex weather pattern exists over the Gulf basin with two weak areas of low pressure and two stationary fronts drapped from NE to SW. The lows and fronts will merge tonight into early Fri, shifting E of the basin this weekend. High pres E of the area will allow for southerly return flow to setup by the end of the weekend. A strong cold front will move into the NW Gulf Mon night, moving across the basin through Tue night. Fresh to near gale force winds will follow the front, except gale force possible in the W central and SW Gulf Tue and Tue night. Gulf of Mexico N of 26N W of 87W .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...W winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...W winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...SW winds less than 10 kt, shifting to S after midnight. Seas 3 to 4 ft. .SUN...S winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. .MON...S winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...N winds 15 to 25 kt. Seas 6 to 9 ft. .TUE NIGHT...NE winds 20 to 30 kt. Seas 8 to 11 ft. Gulf of Mexico from 22N to 26N W of 87W ...GALE CONDITIONS POSSIBLE TUE AND TUE NIGHT... .OVERNIGHT...N winds 10 kt late. Seas 5 to 7 ft. .FRI...NW winds 10 kt. Seas 3 to 5 ft. .FRI NIGHT...W of 96W, variable winds less than 5 kt, becoming S to SW 10 kt late. Elsewhere, W to NW winds 10 kt. Seas 2 to 4 ft. .SAT...SW winds 10 kt. Seas 3 ft or less. .SAT NIGHT...SE to S winds 15 to 20 kt. Seas 2 to 4 ft. .SUN...SE to S winds 15 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...SE to S winds 20 kt. Seas 4 to 6 ft. .MON...SE to S winds 15 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...N winds 20 to 30 kt, increasing to 25 to 35 kt in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...N winds 25 to 35 kt, diminishing to 20 to 30 kt late. Seas 8 to 12 ft. SW Gulf of Mexico S of 22N W of 87W ...GALE CONDITIONS POSSIBLE TUE AND TUE NIGHT... .OVERNIGHT...NW to N winds 10 to 15 kt late. Seas 6 to 8 ft. .FRI...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...N to NE winds 10 kt in the evening, becoming variable less than 5 kt. Seas 2 to 4 ft. .SAT...Variable winds less than 5 kt. Seas 3 ft or less. .SAT NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. .SUN...SE winds 15 to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...SE winds 15 to 20 kt. Seas 2 to 4 ft. .MON...SE to S winds 15 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...W to NW winds 10 kt, becoming NW 20 to 30 kt behind front, and becoming 25 to 35 kt late. Seas 2 to 4 ft, building to 5 to 8 ft late. .TUE NIGHT...NW to N winds 25 to 35 kt. Seas 7 to 10 ft, building to 8 to 12 ft late. Gulf of Mexico E of 87W .TONIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...S winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...W winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...NW winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 ft. .SUN...SE winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...S winds 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds less than 10 kt, increasing to 15 to 25 kt after midnight. Seas 4 to 6 ft.