000 FZNT02 KNHC 260936 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC THU SEP 26 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY. TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE) HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP SECURITE ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 0600 UTC THU SEP 26. 24 HOUR FORECAST VALID 0600 UTC FRI SEP 27. 48 HOUR FORECAST VALID 0600 UTC SAT SEP 28. .WARNINGS. ...CARIBBEAN AND GULF OF MEXICO HURRICANE WARNING... .HURRICANE HELENE NEAR 24.2N 86.2W 966 MB AT 0900 UTC SEP 26 MOVING NNE OR 015 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 250 NM NE QUADRANT...300 NM SE QUADRANT...100 NM SW QUADRANT...AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM NE QUADRANT...270 NM SE QUADRANT...150 NM SW QUADRANT...AND 180 NM NW QUADRANT WITH SEAS TO 33 FT. ELSEWHERE...WITHIN 29N79W TO 29N86W TO 27N91W TO 23N92W TO 19N85W TO 20N80W TO 29N79W...INCLUDING STRAITS OF FLORIDA...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. .24 HOUR FORECAST HURRICANE HELENE INLAND NEAR 31.6N 84.0W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 95 KT. TROPICAL STORM FORCE WINDS WITHIN 270 NM E SEMICIRCLE...140 NM SW QUADRANT AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NE QUADRANT...270 NM SE QUADRANT...AND 150 NM SW QUADRANT WITH SEAS TO 23 FT. ELSEWHERE OVER FORECAST WATERS...WITHIN 29N76W TO 31N78W TO 30N90W TO 26N87W TO 24N83W TO 24N79W TO 29N76W...INCLUDING STRAITS OF FLORIDA AND ATLANTIC EXPOSURES...WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 31N74W TO 28N85W TO 31N88W TO 27N96W TO 22N92W TO 23N79W TO 31N74W...INCLUDING IN YUCATAN CHANNEL...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .36 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HELENE NEAR 36.1N 84.9W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 50 KT. SEAS 12 FT OR GREATER WITHIN 270 NM SE QUADRANT WITH SEAS TO 13 FT. ELSEWHERE OVER FORECAST WATERS...WITHIN 31N74W TO 31N81W TO 29N81W TO 26N79W TO 29N75W TO 31N74W WINDS 20 TO 30 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA...WITHIN 29N84W TO 30N87W TO 28N94W TO 24N95W TO 24N88W TO 26N82W TO 29N84W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HELENE NEAR 37.0N 87.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER FORECAST WATERS...WITHIN 31N75W TO 31N80W TO 29N80W TO 28N79W TO 31N75W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 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 15N36W 1009 MB. WITHIN 19N35W TO 18N37W TO 16N38W TO 15N37W TO 15N35W TO 19N35W E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE...WITHIN 20N35W TO 20N37W TO 16N38W TO 15N36W TO 15N35W TO 20N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 17N42W 1004 MB. WITHIN 19N39W TO 20N41W TO 19N43W TO 17N43W TO 16N41W TO 17N39W TO 19N39W WINDS 20 TO 30 KT. SEAS 10 TO 11 FT. ELSEWHERE...WITHIN 19N35W TO 22N40W TO 20N43W TO 17N43W TO 16N41W TO 17N37W TO 19N35W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN E SWELL. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 18N46W 1001 MB. WITHIN 20N42W TO 20N45W TO 20N46W TO 19N46W TO 18N41W TO 19N41W TO 20N42W WINDS 20 TO 30 KT. SEAS 10 TO 11 FT. ELSEWHERE...WITHIN 21N35W TO 21N40W TO 22N46W TO 18N48W TO 17N42W TO 18N35W TO 21N35W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .ATLC 06 HOUR FORECAST WITHIN 31N60W TO 31N65W TO 30N64W TO 30N63W TO 30N61W TO 31N60W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N TO NE SWELL. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST CONDITIONS IMPROVE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER KONARIK. NATIONAL HURRICANE CENTER.