000 FZNT32 KNHC 201439 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1039 AM EDT TUE SEP 20 2016 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 WILL DRIFT W ACROSS THE BASIN THROUGH WED NIGHT AS HIGH PRES RIDGING BUILDS IN FROM THE NE. FAIRLY TRANQUIL MARINE CONDITIONS WILL PERSIST THROUGH THE WEEK...WITH WINDS INCREASING SLIGHTLY IN THE CENTRAL AND W GULF FRI THROUGH SAT AS THE PRES GRADIENT TIGHTENS. GULF OF MEXICO N OF 26N W OF 87W .THIS AFTERNOON...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TONIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .THU...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .THU NIGHT...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .FRI...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .FRI NIGHT...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS. .SAT...E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS. .SAT NIGHT...SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS. GULF OF MEXICO FROM 22N TO 26N W OF 87W .THIS AFTERNOON...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TONIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .THU...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .THU NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .FRI...SE WINDS 10 KT. SEAS 2 FT OR LESS. .FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS...BUILDING TO 3 FT AFTER MIDNIGHT. .SAT...SE WINDS 10 TO 15 KT. SEAS 3 FT. .SAT NIGHT...SE WINDS 10 KT. SEAS 3 FT. SW GULF OF MEXICO S OF 22N W OF 87W .THIS AFTERNOON...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TONIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED NIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .THU...E WINDS LESS THAN 10 KT IN THE MORNING...BECOMING VARIABLE. SEAS 2 FT OR LESS. .THU NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .FRI...SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .FRI NIGHT...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS. .SAT...SE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. SEAS 2 FT OR LESS. .SAT NIGHT...E WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS. GULF OF MEXICO E OF 87W .THIS AFTERNOON...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .TONIGHT...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .WED NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .THU...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .THU NIGHT...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .FRI...NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .FRI NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SAT...VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS. .SAT NIGHT...E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.