000 FZNT32 KNHC 040840 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 440 AM EDT THU APR 4 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...1009 MB LOW PRES IN THE NORTHERN GULF NEAR 29N87W WILL MOVE NE ACROSS NORTHERN FLORIDA TODAY. A COLD FRONT FROM THE LOW TO 26N92W WILL REACH FROM SW FLORIDA TO THE YUCATAN PENINSULA FRI AND EXIT THE REGION FRI NIGHT. HIGH PRES BEHIND THE FRONT WILL SHIFT E SAT AND ALLOW SOUTHERLY RETURN FLOW LATE SAT THROUGH MON. GULF OF MEXICO N OF 26N W OF 87W .TODAY...NW WINDS 15 TO 25 KT. SEAS 5 TO 7 FT. .TONIGHT...NW WINDS 15 TO 25 KT. SEAS 5 TO 7 FT. .FRI...NW TO N WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. .FRI NIGHT...N TO NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .SAT THROUGH MON...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W .TODAY...NW TO N WINDS 15 TO 25 KT. SEAS 5 TO 7 FT. .TONIGHT...N WINDS 15 TO 25 KT. SEAS 5 TO 7 FT. .FRI...N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI NIGHT...N TO NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .SAT THROUGH MON...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. SW GULF OF MEXICO S OF 22N W OF 87W .TODAY...NW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .TONIGHT...N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI...N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .FRI NIGHT...NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SAT THROUGH MON...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. GULF OF MEXICO E OF 87W .TODAY...S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .TONIGHT...SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI...NW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .FRI NIGHT...N WINDS 10 TO 20 KT. SEAS 6 TO 8 FT. .SAT...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SUN THROUGH MON...SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.