000 FZNT02 KNHC 020347 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC SAT SEP 2 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC SAT SEP 2. 24 HOUR FORECAST VALID 0000 UTC SUN SEP 3. 48 HOUR FORECAST VALID 0000 UTC MON SEP 4. .WARNINGS. ...ATLC GALE WARNING... ...ATLC TROPICAL STORM WARNING... .POST-TROPICAL CYCLONE IDALIA NEAR 31.8N 65.3W 1000 MB AT 0300 UTC SEP 02 MOVING E OR 100 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM NE AND SW QUADRANTS...190 NM NW QUADRANT AND 150 NM SE QUADRANT. WITHIN 31N63W TO 31N69W TO 30N69W TO 30N67W TO 30N66W TO 30N64W TO 31N63W W WINDS 30 TO 40 KT. SEAS 12 TO 19 FT. ELSEWHERE WITHIN 30N62W TO 30N67W TO 31N69W TO 31N73W TO 28N70W TO 28N66W TO 30N62W NW WINDS 20 TO 30 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 31N60W TO 28N70W TO 31N74W TO 31N78W TO 26N77W TO 25N66W TO 31N60W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM IDALIA NEAR 31.8N 62.9W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM N SEMICIRCLE...80 NM SE QUADRANT AND 120 NM SW QUADRANT. SOUTH OF 31N...SEAS 12 FT OR GREATER WITHIN 280 NM SW QUADRANT AND 150 NM SE QUADRANT WITH SEAS TO 16 FT. ELSEWHERE WITHIN 31N59W TO 31N70W TO 30N68W TO 28N62W TO 28N61W TO 31N59W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 31N55W TO 29N66W TO 31N70W TO 31N80W TO 23N73W TO 22N64W TO 31N55W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IDALIA NEAR 34.5N 59.5W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. LITTLE CHANGE. IN RADIUS OF TROPICAL STORM FORCE WINDS. WITHIN 31N53W TO 31N75W TO 26N76W TO 21N69W TO 25N55W TO 31N53W...INCLUDING ATLANTIC EXPOSURES... WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN N TO NE SWELL...HIGHEST NEAR 31N64W. .72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IDALIA NEAR 38.8N 58.0W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IDALIA NEAR 41.1N 58.8W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. .120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IDALIA NEAR 42.6N 58.9W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. ...ATLC TROPICAL STORM WARNING... .TROPICAL STORM GERT NEAR 28.2N 54.9W 1006 MB AT 0300 UTC SEP 02 MOVING N OR 360 DEG AT 0 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 75 NM NE QUADRANT AND 30 NM NE QUDRANT WITH SEAS TO 13 FT. ELSEWHERE WITHIN 28N53W TO 29N55W TO 28N56W TO 27N56W TO 27N54W TO 28N53W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 28N51W TO 30N53W TO 30N54W TO 26N55W TO 26N52W TO 28N51W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM GERT NEAR 29.1N 53.8W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM N SEMICIRCLE...40 NM SE QUADRANT AND 30 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 105 NM NE QUADRANT WITH SEAS TO 13 FT. ELSEWHERE WITHIN 30N53W TO 30N54W TO 29N55W TO 28N55W TO 28N53W TO 28N52W TO 30N53W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 31N50W TO 31N53W TO 28N53W TO 28N52W TO 29N50W TO 31N50W WINDS 20 KT OR LESS. SEAS 10 TO 12 FT IN MIXED SWELL. .48 HOUR FORECAST TROPICAL STORM GERT NEAR 32.0N 52.4W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS N OF AREA. WITHIN 31N46W TO 31N53W TO 30N53W TO 28N52W TO 28N49W TO 31N46W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .60 HOUR FORECAST...DISSIPATED. 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 48 HOUR FORECAST POST-TROPICAL REMNANT LOW TWELVE E OF WATERS NEAR 26.2N 33.7W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 31N35W TO 31N37W TO 30N39W TO 27N37W TO 27N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .CARIBBEAN WITHIN 13N69W TO 14N75W TO 11N74W TO 12N72W TO 11N72W TO 12N69W TO 13N69W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. .24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER ARREINHART. NATIONAL HURRICANE CENTER.