000 FZNT32 KNHC 181436 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1036 AM 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 A FEW EMBEDDED TSTMS WILL PERSIST IN THE NE GULF THROUGH TONIGHT. SOUTHERLY WINDS WILL WEAKEN TONIGHT AHEAD OF A COLD FRONT. THE FRONT WILL REACH FROM FLORIDA BIG BEND TO SOUTH TEXAS TUE MORNING...STALL FROM SW FLORIDA TO THE TEXAS MEXICO BORDER TUE NIGHT...THEN DISSIPATE WED. HIGH PRES WILL BUILD ACROSS NORTHERN WATERS THU AND FRI. GULF OF MEXICO N OF 26N W OF 87W .THIS AFTERNOON...S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. .TONIGHT...SW TO W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TUE AND TUE NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .THU THROUGH FRI...S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W .THIS AFTERNOON...S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .TONIGHT...SE TO S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TUE AND TUE NIGHT...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .WED THROUGH FRI...S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. SW GULF OF MEXICO S OF 22N W OF 87W .THIS AFTERNOON...SE TO S WINDS 10 TO 15 KT ELSEWHERE. SEAS 2 TO 3 FT. .TONIGHT...E TO SE WINDS WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. .TUE AND TUE NIGHT...E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. .WED THROUGH THU...SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. .FRI...S WINDS 10 TO 20 KT. SEAS 2 TO 3 FT. GULF OF MEXICO E OF 87W .THIS AFTERNOON...S WINDS 10 TO 20 KT. SEAS 2 TO 4 FT. .TONIGHT...S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .TUE...SW WINDS 10 KT. SEAS 2 TO 4 FT. .TUE NIGHT...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 TO 4 FT. .WED THROUGH THU...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .FRI...S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.