000 FZNT32 KNHC 181438 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 938 AM EST SAT FEB 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...ACTIVE CONVECTION AHEAD OF A TROUGH IN THE N CENTRAL AND NE GULF WILL SHIFT E THROUGH EARLY SUN WITH HIGH PRES BUILDING ACROSS THE NE GULF SUN MORNING. A LOW ASSOCIATED WITH A BROAD TROUGH OR WEAK COLD FRONT IS FORECAST TO SLOWLY MOVE ACROSS THE GULF MON THROUGH WED NIGHT. GULF OF MEXICO N OF 26N W OF 87W .TODAY...SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TONIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SUN...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .SUN NIGHT...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .MON...SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .MON NIGHT...SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .TUE...N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .TUE NIGHT...N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .WED...NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .WED NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W .TODAY...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TONIGHT...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .SUN...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .SUN NIGHT...SE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT. .MON...SE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT. .MON NIGHT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .TUE...NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .TUE NIGHT...NW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .WED...NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .WED NIGHT...N WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT. SW GULF OF MEXICO S OF 22N W OF 87W .TODAY...WITHIN 60 NM OF COAST OF VERACRUZ...S WINDS 10 TO 15 KT...SHIFTING TO SE IN THE AFTERNOON. ELSEWHERE...SE WINDS 10 TO 15 KT. SEAS 3 FT IN THE MORNING...SUBSIDING TO 2 FT OR LESS. .TONIGHT...E WINDS 10 TO 20 KT. SEAS 2 FT OR LESS...BUILDING TO 3 TO 4 FT AFTER MIDNIGHT. .SUN...SE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT. .SUN NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .MON...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .MON NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TUE...NW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .TUE NIGHT...NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .WED...NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .WED NIGHT...NW WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. GULF OF MEXICO E OF 87W .TODAY...S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TONIGHT...SW WINDS 10 TO 15 KT...SHIFTING TO S AFTER MIDNIGHT. SEAS 3 TO 4 FT. .SUN...E WINDS LESS THAN 10 KT. SEAS 3 FT. .SUN NIGHT...E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS...BUILDING TO 3 TO 4 FT AFTER MIDNIGHT. .MON...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .MON NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TUE...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .TUE NIGHT...SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .WED...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .WED NIGHT...SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.