000 FZNT02 KNHC 182117 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC MON SEP 18 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC MON SEP 18. 24 HOUR FORECAST VALID 1800 UTC TUE SEP 19. 48 HOUR FORECAST VALID 1800 UTC WED SEP 20. .WARNINGS. ...ATLC HURRICANE WARNING... .HURRICANE NIGEL NEAR 28.0N 52.2W 982 MB AT 2100 UTC SEP 18 MOVING NW OR 320 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM NE QUADRANT...120 NM SE QUADRANT...80 NM SW QUADRANT...AND 130 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM NE QUADRANT...240 NM SE QUADRANT...180 NM SW QUADRANT...AND 210 NM NW QUADRANT WITH SEAS TO 31 FT. ELSEWHERE FROM 24N TO 31N BETWEEN 45W AND 56W WINDS 20 TO 33 KT. SEAS 10 TO 15 FT. REMAINDER OF AREA WITHIN 31N41W TO 31N58W TO 22N59W TO 19N53W TO 22N45W TO 31N41W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE NIGEL NEAR 31.0N 54.5W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM NE QUADRANT...130 NM SE QUADRANT...90 NM SW QUADRANT...AND 110 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM NE QUADRANT...240 NM SE QUADRANT...AND 210 NM W SEMICIRCLE WITH SEAS TO 40 FT. ELSEWHERE FROM 27N TO 31N BETWEEN 48W AND 59W WINDS 20 TO 33 KT. SEAS 11 TO 16 FT. REMAINDER OF AREA WITHIN 31N45W TO 31N61W TO 25N61W TO 24N54W TO 26N48W TO 31N45W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE NIGEL NEAR 36.2N 53.5W. MAXIMUM SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM NE QUADRANT...150 NM SE QUADRANT...110 NM SW QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM OF CENTER WITH SEAS TO 38 FT. OVER FORECAST WATERS WITHIN 31N48W TO 31N61W TO 29N58W TO 29N50W TO 31N48W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW TO N SWELL. .72 HOUR FORECAST HURRICANE NIGEL NEAR 42.1N 43.9W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL NIGEL NEAR 48.0N 29.0W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. .120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL NIGEL NEAR 56.0N 18.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 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 WITHIN 29N35W TO 27N37W TO 22N38W TO 19N35W TO 29N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .24 HOUR FORECAST WITHIN 28N35W TO 27N40W TO 24N45W TO 19N46W TO 17N35W TO 28N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE SWELL. .48 HOUR FORECAST WITHIN 24N35W TO 26N45W TO 22N47W TO 17N46W TO 18N35W TO 24N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .CARIBBEAN WITHIN 13N69W TO 13N74W TO 11N73W TO 11N69W TO 13N69W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT. .12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .24 HOUR FORECAST WITHIN 13N68W TO 13N74W TO 11N74W TO 11N68W TO 13N68W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT. .42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .48 HOUR FORECAST WITHIN 13N71W TO 13N73W TO 11N73W TO 11N69W TO 13N71W...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 HAGEN. NATIONAL HURRICANE CENTER.