000 FZNT32 KNHC 211451 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1051 AM EDT FRI AUG 21 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...WEAK HIGH PRESSURE WILL PREVAIL ACROSS NE WATERS THROUGH MON NIGHT THEN SHIFT S ON TUE AS A WEAK TROUGH MOVES INTO THE N CENTRAL WATERS. A THERMAL TROUGH WILL DEVELOP EACH EVENING OVER THE YUCATAN PENINSULA...THEN MOVE W INTO THE SW GULF AT NIGHT AND DISSIPATE BY LATE MORNING. GULF OF MEXICO N OF 26N W OF 87W .THIS AFTERNOON...S WINDS 10 KT. SEAS 3 FT. .TONIGHT...SE WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT LATE. SEAS 2 FT OR LESS...BUILDING TO 3 FT AFTER LATE. .SAT...SE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. SEAS 3 FT. .SAT NIGHT...E WINDS LESS THAN 10 KT...SHIFTING TO SE LATE. SEAS 2 FT OR LESS. .SUN...E WINDS 10 KT. SEAS 2 FT OR LESS. .SUN NIGHT...E WINDS 10 KT. SEAS 2 FT OR LESS. .MON...NE WINDS 10 KT. SEAS 2 FT OR LESS. .MON NIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TUE...N WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TUE NIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. GULF OF MEXICO FROM 22N TO 26N W OF 87W .THIS AFTERNOON...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TONIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .SAT...SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .SUN...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .SUN NIGHT...E WINDS 10 TO 15 KT. SEAS 3 FT. .MON...NE WINDS LESS THAN 10 KT. SEAS 3 FT. .MON NIGHT...NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS. .TUE...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TUE NIGHT...E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS. SW GULF OF MEXICO S OF 22N W OF 87W .THIS AFTERNOON...E WINDS LESS THAN 10 KT WITHIN 60 NM OF COAST OF VERACRUZ...AND SE 10 TO 20 KT ELSEWHERE. SEAS 3 TO 5 FT. .TONIGHT...E WINDS LESS THAN 10 KT WITHIN 60 NM OF COAST OF VERACRUZ...AND E 10 TO 20 KT ELSEWHERE. SEAS 3 TO 4 FT. .SAT...E WINDS LESS THAN 10 KT WITHIN 60 NM OF COAST OF VERACRUZ...AND SE 10 TO 20 KT ELSEWHERE. SEAS 3 TO 5 FT. .SAT NIGHT...E WINDS LESS THAN 10 KT WITHIN 60 NM OF COAST OF VERACRUZ...AND E 10 TO 20 KT ELSEWHERE. SEAS 3 TO 4 FT. .SUN...E WINDS 10 TO 15 KT. SEAS 3 FT. .SUN NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .MON...NE WINDS 10 TO 15 KT. SEAS 3 FT. .MON NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 FT. .TUE...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TUE NIGHT...NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS. GULF OF MEXICO E OF 87W .THIS AFTERNOON...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TONIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SAT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SAT NIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SUN...NE WINDS 10 KT. SEAS 2 FT OR LESS. .SUN NIGHT...N WINDS 10 KT. SEAS 2 FT OR LESS. .MON...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .MON NIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TUE...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TUE NIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.