000 FZNT32 KNHC 270917 OFFN21 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 517 AM EDT MON AUG 27 2012 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...TROPICAL STORM ISAAC NEAR 25.3N 84.3W 990 MB AT 5 AM EDT IS MOVING WNW AT 12 KT WITH MAXIMUM SUSTAINED WINDS OF 55 KT WITH GUSTS TO 65 KT. ISAAC IS FORECAST TO SLOWLY STRENGTHEN AS IT REACHES NEAR 26.3N 85.9W THIS AFTERNOON...AND REACH HURRICANE INTENSITY NEAR 27.6N 87.8W LATE TONIGHT. ISAAC IS FORECAST TO CONTINUE NW TO NEAR 28.8N 89.1W TUE AFTERNOON...THEN MOVE INLAND ACROSS SE LOUISIANA TUE NIGHT INTO WED. HIGH PRES WILL BUILD SW ACROSS NE AND MIDDLE GULF PORTION WED THROUGH FRI. GULF OF MEXICO N OF 26N W OF 87W ...HURRICANE WARNING... .TODAY...TROPICAL STORM CONDITIONS. NE TO E WINDS 15 TO 25 KT... BECOMING N TO NE 40 TO 50 KT IN THE AFTERNOON. SEAS 12 FT... BUILDING TO 18 FT IN THE AFTERNOON. .TONIGHT...HURRICANE CONDITIONS EXPECTED. N WINDS 55 TO 65 KT... BECOMING N TO NW 60 TO 70 KT AFTER MIDNIGHT. SEAS 17 TO 27 FT. .TUE...HURRICANE CONDITIONS EXPECTED. NW WINDS 65 TO 75 KT... BECOMING W TO NW 40 TO 50 KT IN THE AFTERNOON. SEAS 17 TO 27 FT. .TUE NIGHT AND WED...TROPICAL STORM CONDITIONS POSSIBLE. W WINDS 35 TO 45 KT. SEAS 13 TO 18 FT. .WED NIGHT THROUGH FRI...S WINDS 20 TO 30 KT. SEAS 7 TO 10 FT. GULF OF MEXICO FROM 22N TO 26N W OF 87W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. NE WINDS 15 TO 25 KT... BECOMING N 35 TO 45 KT IN THE AFTERNOON. SEAS 9 TO 14 FT. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. N WINDS 30 TO 40 KT...BECOMING NW 20 TO 30 KT AFTER MIDNIGHT. SEAS 10 TO 15 FT. .TUE...W TO NW WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. .TUE NIGHT THROUGH THU...S TO SW WINDS 15 TO 25 KT. SEAS 6 TO 9 FT. .THU NIGHT AND FRI...SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. SW GULF OF MEXICO S OF 22N W OF 87W .TODAY...NE WINDS 10 TO 20 KT...BECOMING N 10 TO 15 KT IN THE AFTERNOON. WITHIN 60 NM OF COAST OF VERACRUZ...N TO NE WINDS LESS THAN 10 KT...BECOMING N IN THE AFTERNOON. SEAS 3 TO 5 FT. .TONIGHT...N TO NW WINDS 10 TO 15 KT...EXCEPT NW LESS THAN 10 KT WITHIN 60 NM OF COAST OF VERACRUZ. SEAS 4 TO 6 FT. .TUE...NW WINDS 10 TO 15 KT...BECOMING W TO NW IN THE AFTERNOON. WITHIN 60 NM OF COAST OF VERACRUZ...N TO NW WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT. .TUE NIGHT AND WED...SW WINDS 10 TO 15 KT...EXCEPT S TO SW LESS THAN 10 KT WITHIN 60 NM OF COAST OF VERACRUZ. SEAS 4 TO 6 FT. .WED NIGHT THROUGH FRI...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. GULF OF MEXICO E OF 87W ...HURRICANE WARNING... .TODAY...TROPICAL STORM CONDITIONS. N WINDS 40 TO 50 KT... BECOMING S TO SW 50 TO 60 KT IN THE AFTERNOON. SEAS 19 FT... BUILDING TO 22 FT IN THE AFTERNOON. .TONIGHT...HURRICANE CONDITIONS EXPECTED. S TO SW WINDS 55 TO 65 KT...BECOMING S 45 TO 55 KT AFTER MIDNIGHT. SEAS 18 TO 28 FT. .TUE...TROPICAL STORM CONDITIONS EXPECTED. S TO SW WINDS 35 TO 45 KT...DIMINISHING TO 30 TO 40 KT IN THE AFTERNOON. SEAS 17 TO 27 FT. .TUE NIGHT THROUGH THU...TROPICAL STORM CONDITIONS POSSIBLE. S WINDS 25 TO 35 KT. SEAS 11 TO 16 FT. .THU NIGHT AND FRI...SE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.