000 FZNT32 KNHC 190154 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 954 PM EDT MON MAR 18 2013 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...SCATTERED SHOWERS AND ISOLATED TSTMS WILL PERSIST IN THE E GULF THROUGH TONIGHT. SOUTHERLY WINDS WILL WEAKEN TONIGHT AHEAD OF A COLD FRONT THAT WILL SWEEP E ACROSS THE NORTHERN GULF OVERNIGHT. THE FRONT WILL EXTEND FROM FLORIDA BIG BEND TO TEXAS COAST TUE...STALL FROM SW FLORIDA TO THE TEXAS MEXICO BORDER TUE NIGHT. HIGH PRES BUILDING ACROSS NORTHERN WATERS WED INTO THU RESULTS IN INCREASING N TO NE WINDS. HIGH PRES MOVES NE OF AREA WITH MODERATE E TO SE RETURN FLOW FRI AND FRESH SE TO S WINDS SAT. GULF OF MEXICO N OF 26N W OF 87W .OVERNIGHT...SW WINDS 10 KT. SEAS 3 TO 4 FT. .TUE...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TUE NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED AND WED NIGHT...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .THU THROUGH SAT...S WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W .OVERNIGHT...SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT. .TUE...E WINDS LESS THAN 10 KT. SEAS 2 TO 4 FT. .TUE NIGHT THROUGH WED NIGHT...NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .THU THROUGH SAT...S WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. SW GULF OF MEXICO S OF 22N W OF 87W .OVERNIGHT...E WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT. .TUE...SE WINDS LESS THAN 10 KT. SEAS 2 FT. .TUE NIGHT AND WED...SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. .WED NIGHT...NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. .THU THROUGH SAT...S WINDS 10 TO 20 KT. SEAS 2 TO 4 FT. GULF OF MEXICO E OF 87W .OVERNIGHT...S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .TUE...SW WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT LATE. SEAS 2 TO 4 FT. .TUE NIGHT AND WED...SE WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT. .WED NIGHT...N WINDS 10 TO 15 KT...BECOMING 10 TO 20 KT LATE. SEAS 2 TO 4 FT. .THU THROUGH SAT...S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.