000 FZNT32 KNHC 210851 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 451 AM EDT TUE MAY 21 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...A RIDGE EXTENDING FROM THE WESTERN ATLC ACROSS THE NORTHERN GULF TO THE TEXAS COAST WILL MOVE LITTLE THROUGH THU. A COLD FRONT MAY MOVE INTO THE NE GULF FRI THEN DRIFT S THROUGH SAT. GULF OF MEXICO N OF 26N W OF 87W .TODAY...SE WINDS 10 TO 20 KT...BECOMING 10 TO 15 KT LATE. SEAS 3 TO 5 FT. .TONIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .WED AND WED NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .THU...SE WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT. .FRI THROUGH SAT...E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W .TODAY...SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .TONIGHT...SE WINDS 10 TO 15 KT...BECOMING 10 TO 20 KT LATE. SEAS 4 TO 6 FT. .WED AND WED NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .THU THROUGH SAT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. SW GULF OF MEXICO S OF 22N W OF 87W .TODAY...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .TONIGHT...E WINDS 10 TO 15 KT...BECOMING 10 TO 20 KT LATE. SEAS 3 TO 5 FT. .WED AND WED NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .THU THROUGH SAT...NE WINDS 10 TO 20 KT. SEAS 2 TO 4 FT. GULF OF MEXICO E OF 87W .TODAY...E WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT LATE. SEAS 2 TO 3 FT. .TONIGHT...E WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT. .WED AND WED NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT. .THU THROUGH SAT...NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.