000 FZNT32 KNHC 180910 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 510 AM EDT THU JUL 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...SURFACE TROUGH DRIFT ACROSS NE GULF THROUGH SAT MOVING INLAND TEXAS SAT. HIGH PRES BUILDS IN ACROSS BASIN IN WAKE OF TROUGH THROUGH MON. GULF OF MEXICO N OF 26N W OF 87W .TODAY...E WINDS 10 TO 20 KT BECOMING 10 TO 15 KT LATE. SEAS 4 TO 6 FT. .TONIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .FRI...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .FRI NIGHT...SE WINDS 10 KT. SEAS 2 TO 3 FT. .SAT THROUGH MON...S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W .TODAY...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TONIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .FRI AND FRI NIGHT...SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .SAT THROUGH MON...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. SW GULF OF MEXICO S OF 22N W OF 87W .TODAY...NE WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT. .TONIGHT...E WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT. .FRI AND FRI NIGHT...E WINDS LESS THAN 10 KT WITHIN 60 NM OF COAST OF VERACRUZ AND E 10 TO 15 KT ELSEWHERE. SEAS 2 TO 3 FT. .SAT THROUGH MON...E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. GULF OF MEXICO E OF 87W .TODAY...SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .TONIGHT...SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .FRI AND FRI NIGHT...SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .SAT THROUGH MON...E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.