352 FZNT02 KNHC 290420 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC MON SEP 29 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 AMERICA SYNOPSIS VALID 0000 UTC MON SEP 29. 24 HOUR FORECAST VALID 0000 UTC TUE SEP 30. 48 HOUR FORECAST VALID 0000 UTC WED OCT 1. .WARNINGS. ...ATLC HURRICANE WARNING... .HURRICANE HUMBERTO NEAR 26.2N 66.2W 928 MB AT 0300 UTC SEP 29 MOVING NW OR 310 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM NE QUADRANT...130 NM SE QUADRANT...100 NM SW QUADRANT...AND 120 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 300 NM NE QUADRANT...210 NM SE QUADRANT...180 NM SW QUADRANT...AND 270 NM NW QUADRANT WITH SEAS TO 13.5 M. ELSEWHERE WITHIN 27N61W TO 30N64W TO 29N68W TO 24N68W TO 23N66W TO 25N62W TO 27N61W WINDS 20 TO 33 KT. SEAS 3.5 TO 5.0 M. REMAINDER OF AREA WITHIN 31N61W TO 31N69W TO 24N72W TO 20N69W TO 23N61W TO 26N59W TO 31N61W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN MIXED SWELL. .24 HOUR FORECAST HURRICANE HUMBERTO NEAR 29.5N 68.5W. MAXIMUM SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM E SEMICIRCLE...100 NM SW QUADRANT AND 120 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 300 NM N SEMICIRCLE AND 240 NM S SEMICIRCLE WITH SEAS TO 15.0 M. ELSEWHERE WITHIN 31N64W TO 31N71W TO 29N71W TO 26N70W TO 26N67W TO 27N64W TO 31N64W WINDS 20 TO 33 KT. SEAS 3.5 TO 5.5 M. REMAINDER OF AREA WITHIN 31N62W TO 28N70W TO 31N75W TO 25N77W TO 24N68W TO 26N63W TO 31N62W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN MIXED SWELL. .48 HOUR FORECAST HURRICANE HUMBERTO WELL NORTH OF AREA. MAXIMUM SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM NE QUADRANT...180 NM SE QUADRANT...120 NM SW QUADRANT...AND 150 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 300 NM ALL QUADRANTS EXCEPT 360 NM NW QUADRANT WITH SEAS TO 17.0 M. ELSEWHERE OVER FORECAST WATERS WITHIN 31N63W TO 31N71W TO 29N71W TO 26N70W TO 26N68W TO 29N64W TO 31N63W WINDS 20 TO 33 KT. SEAS 3.5 TO 4.5 M. REMAINDER OF AREA WITHIN 31N63W TO 31N69W TO 26N73W TO 27N68W TO 29N65W TO 31N63W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN MIXED SWELL. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. ...ATLC HURRICANE WARNING... .TROPICAL STORM IMELDA NEAR 25.0N 77.1W 998 MB AT 0300 UTC SEP 29 MOVING N OR 360 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM W SEMICIRCLE...80 NM NE QUADRANT AND 40 NM SE QUADRANT. ELSEWHERE WITHIN 26N74W TO 27N76W TO 26N79W TO 25N79W TO 23N77W TO 23N75W TO 26N74W WINDS 20 TO 33 KT. SEAS 2.5 TO 3.0 M. .24 HOUR FORECAST TROPICAL STORM IMELDA NEAR 27.9N 77.3W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS AND SEAS 4 M OR GREATER WITHIN 130 NM NE QUADRANT...90 NM SE QUADRANT...80 NM SW QUADRANT...AND 110 NM NW QUADRANT. SEAS TO 6.5 M. ELSEWHERE WITHIN 31N75W TO 30N78W TO 31N80W TO 26N79W TO 25N77W TO 28N74W TO 31N75W WINDS 20 TO 33 KT. SEAS 3.0 TO 4.5 M. REMAINDER OF AREA WITHIN 29N80W TO 31N80W TO 30N81W TO 28N81W TO 26N79W TO 29N80W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL. .36 HOUR FORECAST HURRICANE IMELDA NEAR 28.8N 76.5W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. .48 HOUR FORECAST HURRICANE IMELDA NEAR 29.4N 74.8W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM OF CENTER EXCEPT 190 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 300 NM N SEMICIRCLE AND 150 NM S SEMICIRCLE WITH SEAS TO 9.0 M. ELSEWHERE OVER FORECAST WATERS WITHIN 31N71W TO 31N81W TO 29N80W TO 26N76W TO 26N72W TO 31N71W WINDS 20 TO 33 KT. SEAS 3.0 TO 5.0 M. REMAINDER OF AREA WITHIN 27N77W TO 31N81W TO 26N80W TO 27N77W TO 25N75W TO 26N71W TO 27N77W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN MIXED SWELL 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 2.5 M. $$ .FORECASTER DELGADO. NATIONAL HURRICANE CENTER.