000 FZPN03 KNHC 272156 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC SUN AUG 27 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE EQUATOR E OF 120W SYNOPSIS VALID 1800 UTC SUN AUG 27. 24 HOUR FORECAST VALID 1800 UTC MON AUG 28. 48 HOUR FORECAST VALID 1800 UTC TUE AUG 29. .WARNINGS. ...TROPICAL STORM WARNING... .TROPICAL STORM IRWIN NEAR 17.2N 121.3W 998 MB AT 2100 UTC AUG 27 MOVING WNW OR 295 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM W SEMICIRCLE...50 NM NE QUADRANT AND 20 NM SE QUADRANT. SEAS 12 FT WITHIN 30 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. ELSEWHERE WITHIN 19N118W TO 21N121W TO 20N124W TO 19N125W TO 15N123W TO 15N121W TO 19N118W WINDS 20 TO 30 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 21N117W TO 21N120W TO 18N118W TO 13N118W TO 11N117W TO 14N114W TO 21N117W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM IRWIN NEAR 18.4N 124.6W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NE QUADRANT...20 NM SE QUADRANT...0 NM SW QUADRANT...AND 40 NM NW QUADRANT. SEAS TO 12 FT WITHIN 75 NM N SEMICIRCLE. ELSEWHERE WITHIN 20N122W TO 22N124W TO 22N128W TO 19N129W TO 17N126W TO 19N122W TO 20N122W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. .48 HOUR FORECAST TROPICAL STORM IRWIN NEAR 18.6N 130.0W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N SEMICIRCLE AND 10 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 75 NM N SEMICIRCLE WITH SEAS TO 13 FT. ELSEWHERE WITHIN 20N130W TO 22N132W TO 22N134W TO 19N135W TO 17N131W TO 18N129W TO 20N130W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 25N132W TO 25N136W TO 22N133W TO 19N129W TO 20N128W TO 22N128W TO 25N132W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .72 HOUR FORECAST TROPICAL DEPRESSION IRWIN NEAR 18.4N 135.2W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST POST-TROPICAL REMNANT LOW IRWIN NEAR 18.8N 138.9W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. .120 HOUR FORECAST POST-TROPICAL REMNANT LOW IRWIN NEAR 19.1N 141.4W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 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. .WITHIN 13N137W TO 16N140W TO 09N140W TO 10N138W TO 12N137W TO 13N137W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. .24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 8 FT. .18 HOUR FORECAST WITHIN 01S120W TO 01S120W TO 03.4S120W TO 03.4S119W TO 03S119W TO 01S120W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN SE SWELL. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST WITHIN 01N120W TO 08N134W TO 07N137W TO 00N136W TO 03.4S120W TO 01N120W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN S SWELL. .42 HOUR FORECAST WITHIN 30N120W TO 30N124W TO 29N123W TO 29N120W TO 30N120W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .48 HOUR FORECAST WITHIN 30N119W TO 30N127W TO 28N126W TO 28N123W TO 28N121W TO 30N119W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 2100 UTC SUN AUG 27... .T.S. IRWIN...SCATTERED MODERATE ISOLATED STRONG FROM 12N TO 21N BETWEEN 111W AND 124W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 11N86W TO 19N115W...THEN RESUMES SW OF T.S. IRWIN NEAR 11N122W TO 08N140W. SCATTERED MODERATE N OF 02N AND E OF 98W. $$ .FORECASTER ERA. NATIONAL HURRICANE CENTER.