000 FZNT02 KNHC 271459 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC TUE SEP 27 2022 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. SECURITE ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 1200 UTC TUE SEP 27. 24 HOUR FORECAST VALID 1200 UTC WED SEP 28. 48 HOUR FORECAST VALID 1200 UTC THU SEP 29. .WARNINGS. ...GULF OF MEXICO HURRICANE WARNING... .HURRICANE IAN NEAR 23.0N 83.6W 950 MB AT 1500 UTC SEP 27 MOVING N OR 360 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM OF CENTER EXCEPT 100 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 75 NM NE QUADRANT...180 NM SE QUADRANT...60 NM SW QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO 19 FT. ELSEWHERE WITHIN 24N80W TO 26N82W TO 26N93W TO 19N85W TO 20N79W TO 24N80W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. .24 HOUR FORECAST HURRICANE IAN NEAR 26.0N 83.0W. MAXIMUM SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE QUADRANT...120 NM SE QUADRANT...110 NM SW QUADRANT...AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM SW AND 90 NM NE SEMICIRCLES WITH SEAS TO 31 FT. ELSEWHERE WITHIN 28N79W TO 31N86W TO 29N95W TO 24N94W TO 22N87W TO 24N79W TO 28N79W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. .48 HOUR FORECAST HURRICANE IAN INLAND OVER FLORIDA NEAR 27.8N 82.1W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM S SEMICIRCLE...300 NM NE QUADRANT AND 160 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 360 NM SW SEMICIRCLE OVER GULF WATERS WITH SEAS TO 23 FT...AND WITHIN 360 NM NE QUADRANT OVER ATLC WATERS WITH SEAS TO 15 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 31N77W TO 30N84W TO 31N88W TO 29N92W TO 24N88W TO 25N79W TO 31N77W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 24N82W TO 25N89W TO 29N92W TO 27N97W TO 22N94W TO 21N86W TO 24N82W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .60 HOUR FORECAST TROPICAL STORM IAN INLAND NEAR 28.5N 81.7W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. .72 HOUR FORECAST TROPICAL STORM IAN INLAND NEAR 29.5N 81.5W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST TROPICAL STORM IAN INLAND NEAR 33.0N 81.8W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. .120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IAN NEAR 35.0N 81.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 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. .ATLC LOW PRES NEAR 13.5N35W 1008 MB. OVER FORECAST WATERS WITHIN 15N35W TO 16N36W TO 15N38W TO 12N38W TO 11N35W TO 15N35W N TO NE WINDS 20 TO 25 KT. SEAS 8 FT. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 14.5N37W 1007 MB. WITHIN 17N35W TO 17N37W TO 16N38W TO 15N38W TO 15N36W TO 15N35W TO 17N35W E WINDS 20 TO 25 KT. SEAS 8 FT. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 16N38W 1007 MB. WITHIN 18N35W TO 18N37W TO 17N37W TO 16N35W TO 18N35W SE WINDS 20 TO 25 KT. SEAS TO 8 FT. .ATLC WITHIN 31N35W TO 31N38W TO 30N37W TO 29N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN W TO NW SWELL. .24 HOUR FORECAST WITHIN 31N35W TO 31N41W TO 27N38W TO 25N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL. .48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC WITHIN 29N44W TO 28N47W TO 26N51W TO 25N50W TO 26N44W TO 29N44W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL. .06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .GULF OF MEXICO 48 HOUR FORECAST WITHIN 21N96W TO 20N96W TO 19N96W TO 19N95W TO 21N96W...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ... NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.