542 FZNT02 KNHC 091448 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC SUN SEP 09 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. PAN PAN ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 1200 UTC SUN SEP 09. 24 HOUR FORECAST VALID 1200 UTC MON SEP 10. 48 HOUR FORECAST VALID 1200 UTC TUE SEP 11. .WARNINGS. ...HURRICANE WARNING... .HURRICANE FLORENCE NEAR 24.4N 56.3W 984 MB AT 1500 UTC SEP 09 MOVING W OR 270 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM N SEMICIRCLE...50 NM SE QUADRANT AND 40 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM NE QUADRANT...90 NM SE QUADRANT...120 NM SW QUADRANT...AND 180 NM NW QUADRANT WITH SEAS TO 26 FT. ELSEWHERE WITHIN 120 NM S SEMICIRCLE...210 NM NE AND 180 NM NW QUADRANTS WINDS 20 TO 33 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA FROM 22N TO 30N BETWEEN 52W AND 61W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE FLORENCE NEAR 24.9N 59.3W. MAXIMUM SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE QUADRANT...80 NM SE QUADRANT...50 NM SW QUADRANT...AND 110 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM N AND 120 NM S SEMICIRCLES WITH SEAS TO 37 FT. ELSEWHERE WITHIN 300 NM NE...210 NM NW...180 NM SE...AND 120 NM SW QUADRANTS WINDS 20 TO 33 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA FROM 22N TO 31N BETWEEN 54W AND 65W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE FLORENCE NEAR 26.4N 64.5W. MAXIMUM SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM NE QUADRANT...100 NM SE QUADRANT...70 NM SW QUADRANT...AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM N AND 180 NM S SEMICIRCLES WITH SEAS TO 41 FT. ELSEWHERE WITHIN 300 NM NE...240 NM SE...210 NM NW...AND 120 NM SW QUADRANTS WINDS 20 TO 33 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA FROM 21N TO 31N BETWEEN 57W AND 70W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE FLORENCE NEAR 29.0N 70.8W. MAXIMUM SUSTAINED WINDS 125 KT GUSTS 150 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE FLORENCE NEAR 29.0N 70.8W. MAXIMUM SUSTAINED WINDS 120 KT GUSTS 145 KT. .120 HOUR FORECAST HURRICANE FLORENCE INLAND NEAR 35.0N 78.5W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. ...HURRICANE WARNING... .TROPICAL STORM ISAAC NEAR 14.3N 39.1W 999 MB AT 1500 UTC SEP 09 MOVING W OR 270 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM NE QUADRANT...20 NM SE QUADRANT...10 NM SW QUADRANT...AND 30 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM OF CENTER EXCEPT 30 NM SE QUADRANT WITH SEAS TO 17 FT. ELSEWHERE WITHIN 210 NM N AND 90 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA FROM 12N TO 19N BETWEEN 35W AND 42W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL. .12 HOUR FORECAST HURRICANE ISAAC NEAR 14.4N 40.8W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. .24 HOUR FORECAST HURRICANE ISAAC NEAR 14.4N 43.3W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NE QUADRANT...30 NM SE QUADRANT...20 NM SW QUADRANT...AND 40 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 75 NM N AND 45 NM S SEMICIRCLES WITH SEAS TO 24 FT. ELSEWHERE WITHIN 270 NM N AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA FROM 12N TO 22N BETWEEN 37W AND 46W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE ISAAC NEAR 14.3N 49.1W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM S SEMICIRCLE...70 NM NE QUADRANT AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM N AND 60 NM S SEMICIRCLES OF CENTER WITH SEAS TO 31 FT. ELSEWHERE WITHIN 300 NM N AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER AREA FROM 11N TO 23N BETWEEN 45W AND 53W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE ISAAC NEAR 14.2N 54.8W. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE ISAAC NEAR 14.2N 54.8W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. .120 HOUR FORECAST TROPICAL STORM ISAAC NEAR 15.0N 66.5W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. ...HURRICANE WARNING... .TROPICAL STORM HELENE NEAR 13.2N 25.0W 997 MB AT 1500 UTC SEP 09 MOVING W OR 270 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND 30 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM NE QUADRANT...240 NM SE QUADRANT...180 NM SW QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO XX FT. .12 HOUR FORECAST HURRICANE HELENE NEAR 13.7N 27.1W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. .24 HOUR FORECAST HURRICANE HELENE NEAR 14.3N 30.0W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM OF CENTER EXCEPT 50 NM SW QUADRANT. OVER FORECAST WATERS FROM 16N TO 22N BETWEEN 35W AND 37W WINDS 20 KT OR LESS. SEAS TO 9 FT IN E SWELL. .48 HOUR FORECAST HURRICANE HELENE NEAR 15.7N 35.2W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM N SEMICIRCLE...90 NM SE QUADRANT AND 60 NM SW QUADRANT. SEAS 12 FT OR GREATER OVER FORECAST WATERS WITHIN 270 NM N AND 120 NM S SEMICIRCLES WITH SEAS TO 32 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 330 NM N AND 150 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 11 FT. REMAINDER AREA FROM 09N TO 24N BETWEEN 35W AND 41W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE HELENE NEAR 17.8N 38.6W. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE HELENE NEAR 17.8N 38.6W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. .120 HOUR FORECAST TROPICAL STORM HELENE NEAR 26.0N 43.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. .SYNOPSIS AND FORECAST. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER AL. NATIONAL HURRICANE CENTER.