267 FZNT02 KNHC 191510 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC TUE SEP 19 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 19. 24 HOUR FORECAST VALID 1200 UTC WED SEP 20. 48 HOUR FORECAST VALID 1200 UTC THU SEP 21. .WARNINGS. ...ATLC HURRICANE WARNING... .HURRICANE NIGEL NEAR 30.5N 54.3W 975 MB AT 1500 UTC SEP 19 MOVING NNW OR 330 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM NE QUADRANT...120 NM SE QUADRANT...80 NM SW QUADRANT...AND 130 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM E SEMICIRCLE AND 210 NM W SEMICIRCLE WITH SEAS TO 32 FT. ELSEWHERE WITHIN 270 NM E SEMICIRCLE...180 NM SW QUADRANT AND 240 NM NW QUADRANT WINDS 20 TO 33 FT. SEAS 8 TO 12 FT N OF A LINE FROM 31N45W TO 22N51W TO 21N56W TO 25N62W TO 31N60W. .24 HOUR FORECAST HURRICANE NIGEL N OF AREA NEAR 35.0N 54.2W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM E SEMICIRCLE AND 100 NM W SEMICIRCLE. OVER FORECAST WATERS N OF 29N BETWEEN 48W AND 64W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. SEE PART 1. .48 HOUR FORECAST HURRICANE NIGEL WELL N OF AREA NEAR 41.0N 46.2W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM NE AND SW QUADRANTS...120 NM NW QUADRANT AND 170 NM SE QUADRANT. OVER FORECAST WATERS N OF 30N BETWEEN 48W AND 52W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SWELL. SEE PART 1. .72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL NIGEL NEAR 46.5N 31.3W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL NIGEL NEAR 54.0N 20.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. .120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL NIGEL NEAR 59.0N 21.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 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 FROM 18N TO 27N E OF 43W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .24 HOUR FORECAST FROM 18N TO 25N E OF 47W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .48 HOUR FORECAST FROM 16N TO 26N E OF 48W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .CARIBBEAN FROM 11N TO 13N BETWEEN 70W AND 74W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 76W... INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 76W... INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER GR. NATIONAL HURRICANE CENTER.