000 FZNT32 KNHC 150808 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 408 AM EDT SAT AUG 15 2015 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 TROUGH EXTENDS FROM THE FLORIDA BIG BEND TO THE CENTRAL GULF. THE TROUGH WILL DRIFT WESTWARD WHILE GRADUALLY DISSIPATING TODAY. A RIDGE WILL BUILD ACROSS THE N GULF SUN THROUGH MON AND PERSIST THROUGH MID WEEK. A THERMAL TROUGH WILL DEVELOP EACH EVENING OVER THE YUCATAN AND MOVE WESTWARD INTO THE SW GULF DURING THE OVERNIGHT HOURS BEFORE DISSIPATING OVER THE SW GULF BY LATE MORNING. GULF OF MEXICO N OF 26N W OF 87W .TODAY...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TONIGHT...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SUN...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SUN NIGHT...SE WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT LATE. SEAS 2 FT OR LESS. .MON...S WINDS 10 KT. SEAS 2 FT OR LESS. .MON NIGHT...SE WINDS 10 KT. SEAS 3 FT. .TUE...SE WINDS 10 KT. SEAS 3 FT. .TUE NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W .TODAY...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TONIGHT...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SUN...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SUN NIGHT...SE WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT LATE. SEAS 2 FT OR LESS...BUILDING TO 3 FT AFTER LATE. .MON...SE WINDS LESS THAN 10 KT. SEAS 3 FT. .MON NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 FT. .TUE...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TUE NIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED NIGHT...SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. SW GULF OF MEXICO S OF 22N W OF 87W .TODAY...WITHIN 60 NM OF COAST OF VERACRUZ...SE WINDS LESS THAN 10 KT. ELSEWHERE...E WINDS 10 TO 15 KT...SHIFTING TO SE IN THE AFTERNOON. SEAS 2 FT OR LESS. .TONIGHT...WITHIN 60 NM OF COAST OF VERACRUZ...E WINDS LESS THAN 10 KT. ELSEWHERE...NE WINDS LESS THAN 10 KT...SHIFTING TO E LATE. SEAS 2 FT OR LESS. .SUN...WITHIN 60 NM OF COAST OF VERACRUZ...SE WINDS LESS THAN 10 KT IN THE MORNING...BECOMING VARIABLE WINDS LESS THAN 10 KT. ELSEWHERE...SE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. SEAS 2 FT OR LESS. .SUN NIGHT...WITHIN 60 NM OF COAST OF VERACRUZ...SE WINDS LESS THAN 10 KT. ELSEWHERE...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT LATE. SEAS 2 FT OR LESS. .MON...SE WINDS 10 TO 15 KT. SEAS 3 FT. .MON NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TUE...SE WINDS 10 TO 15 KT. SEAS 3 FT. .TUE NIGHT...E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT. .WED...SE WINDS 10 TO 15 KT. SEAS 3 FT. .WED NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. GULF OF MEXICO E OF 87W .TODAY...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TONIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SUN...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS...BUILDING TO 3 FT IN THE AFTERNOON. .SUN NIGHT...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT LATE. SEAS 3 FT. .MON...SE WINDS 10 TO 15 KT. SEAS 3 FT. .MON NIGHT...E WINDS 10 KT. SEAS 3 FT. .TUE...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TUE NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED NIGHT...SE WINDS 10 KT. SEAS 2 FT OR LESS.