000 FZNT32 KNHC 180836 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 436 AM EDT SAT MAR 18 2017 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 SURFACE HIGH OVER THE NE GULF WILL SHIFT W TO 28N92W TONIGHT ALLOWING A WEAK COLD FRONT TO SWEEP E ACROSS THE NE WATERS. THE HIGH WILL SHIFT BACK OVER THE NE GULF ON MON WHERE IT WILL MEANDER THROUGH WED NIGHT. A THERMAL TROUGH WILL DEVELOP EACH AFTERNOON OVER THE YUCATAN PENINSULA...MOVE W ACROSS THE BAY OF CAMPECHE DURING THE OVERNIGHT HOURS AND DISSIPATE DURING THE MORNINGS. GULF OF MEXICO N OF 26N W OF 87W .TODAY...SE WINDS 10 TO 15 KT...SHIFTING TO E IN THE AFTERNOON. SEAS 3 TO 5 FT. .TONIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT. .SUN...NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT. .SUN NIGHT...E WINDS 10 KT. SEAS 3 FT. .MON...SE WINDS 10 KT. SEAS 3 FT IN THE MORNING... SUBSIDING TO 2 FT OR LESS. .MON NIGHT...SE WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS. .TUE...SE WINDS 10 TO 15 KT. SEAS 3 FT. .TUE NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 FT. .WED...SE WINDS 10 TO 15 KT. SEAS 3 FT. .WED NIGHT...SE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W .TODAY...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TONIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SUN...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .SUN NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .MON...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .MON NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TUE...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TUE NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. SW GULF OF MEXICO S OF 22N W OF 87W .TODAY...WITHIN 60 NM OF COAST OF VERACRUZ...E WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. ELSEWHERE...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .TONIGHT...E WINDS 10 TO 15 KT WITHIN 60 NM OF COAST OF VERACRUZ...AND NE 15 TO 25 KT ELSEWHERE. SEAS 4 TO 6 FT. .SUN...E WINDS LESS THAN 10 KT WITHIN 60 NM OF COAST OF VERACRUZ...AND E 10 TO 20 KT ELSEWHERE. SEAS 4 TO 6 FT. .SUN NIGHT...E WINDS LESS THAN 10 KT WITHIN 60 NM OF COAST OF VERACRUZ...AND NE 10 TO 20 KT ELSEWHERE. SEAS 3 TO 5 FT. .MON...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .MON NIGHT...NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .TUE...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .TUE NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT. .WED...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .WED NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. GULF OF MEXICO E OF 87W .TODAY...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TONIGHT...N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .SUN...N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .SUN NIGHT...N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .MON...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .MON NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TUE...NE WINDS 10 TO 15 KT...SHIFTING TO E IN THE AFTERNOON. SEAS 3 FT. .TUE NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED NIGHT...NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS...BUILDING TO 3 FT AFTER MIDNIGHT.