000 FZNT32 KNHC 052049 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 449 PM EDT THU SEP 5 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 1011 MB LOW NEAR 22N95W IS ALONG A SURFACE TROUGH THAT EXTENDS S OF 26N TO INLAND MEXICO AT 18N94W. THESE FEATURES ARE ASSOCIATED WITH A BROAD AREA OF LOW PRES OVER THE SW GULF. THE LOW AND BROAD LOW PRES AREA IS FORECAST TO SLOWLY MOVE NW THROUGH FRI NIGHT WITH A POSSIBILITY OF INTENSIFICATION INTO A TROPICAL CYCLONE. OTHERWISE...WEAK RIDGING WILL PERSIST ACROSS THE NORTHERN WATERS THROUGH THE PERIOD. GULF OF MEXICO N OF 26N W OF 87W .TONIGHT...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .FRI...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .FRI NIGHT THROUGH SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .SUN THROUGH TUE...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W .TONIGHT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .FRI...E WINDS 10 TO 20 KT...BECOMING 10 TO 15 KT LATE. SEAS 4 TO 6 FT. .FRI NIGHT THROUGH SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .SUN THROUGH TUE...E WINDS 10 TO 20 KT. SEAS 2 TO 4 FT. SW GULF OF MEXICO S OF 22N W OF 87W .TONIGHT...NE WINDS 10 TO 15 KT...SHIFTING TO E 10 TO 20 KT LATE. SEAS 2 TO 3 FT. .FRI...SE WINDS 10 TO 20 KT...BECOMING 10 TO 15 KT LATE. SEAS 2 TO 3 FT. .FRI NIGHT THROUGH SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. .SUN THROUGH TUE...E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. GULF OF MEXICO E OF 87W .TONIGHT...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .FRI...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .FRI NIGHT THROUGH SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. .SUN THROUGH TUE...E WINDS 10 TO 20 KT. SEAS 2 TO 3 FT.