000 FZPN03 KNHC 271547 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC SUN AUG 27 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1200 UTC SUN AUG 27. 24 HOUR FORECAST VALID 1200 UTC MON AUG 28. 48 HOUR FORECAST VALID 1200 UTC TUE AUG 29. .WARNINGS. ...TROPICAL STORM WARNING... .TROPICAL STORM IRWIN NEAR 16.8N 120.7W 998 MB AT 1500 UTC AUG 27 MOVING WNW OR 295 DEG AT 10 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 OR GREATER WITHIN 0 NM W SEMICIRCLE...120 NM NE QUADRANT AND 210 NM SE QUADRANT WITH SEAS TO 12 FT. ELSEWHERE WITHIN 18N116W TO 20N117W TO 20N121W TO 20N123W TO 17N123W TO 14N116W TO 18N116W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 15N113W TO 20N115W TO 21N119W TO 16N117W TO 11N119W TO 13N114W TO 15N113W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM IRWIN NEAR 17.8N 123.9W. 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 12 FT OR GREATER WITHIN 120 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE WITH SEAS TO 16 FT. ELSEWHERE WITHIN 19N122W TO 21N123W TO 21N126W TO 21N127W TO 17N125W TO 18N122W TO 19N122W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 22N122W TO 22N126W TO 18N128W TO 15N125W TO 15N123W TO 18N120W TO 22N122W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .48 HOUR FORECAST TROPICAL STORM IRWIN NEAR 18.2N 129.5W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N SEMICIRCLE AND 10 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 120 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE WITH SEAS TO 17 FT. ELSEWHERE WITHIN 20N128W TO 21N129W TO 22N131W TO 19N132W TO 18N130W TO 18N129W TO 20N128W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 22N125W TO 25N127W TO 24N133W TO 19N134W TO 16N130W TO 17N127W TO 22N125W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .72 HOUR FORECAST TROPICAL STORM IRWIN NEAR 18.0N 135.3W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST POST-TROPICAL REMNANT LOW IRWIN NEAR 18.4N 138.9W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. .120 HOUR FORECAST POST-TROPICAL REMNANT LOW IRWIN NEAR 18.7N 141.6W. 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 WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL. .24 HOUR FORECAST WITHIN 10N139W TO 11N139.5W TO 12.5N140W TO 08N140W TO 08.5N139W TO 10N139W WINDS 20 KT OR LESS. SEAS 8 FT IN E SWELL. .30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .24 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 SW SWELL. .48 HOUR FORECAST WITHIN 09N131W TO 06N137W TO 00N135W TO 03.4S120W TO 00N120W TO 09N131W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN SW SWELL. .48 HOUR FORECAST WITHIN 30N120W TO 30N124W TO 29N123W TO 29N120W TO 30N120W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 1530 UTC SUN AUG 27... .T.S. IRWIN...SCATTERED MODERATE ISOLATED STRONG FROM 12N TO 20N BETWEEN 112W AND 124W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 09N84W TO 19N110W...THEN RESUMES WEST OF T.S. IRWIN NEAR 02N122W TO 09N140W. SCATTERED MODERATE N OF 02N AND E OF 97W. $$ .FORECASTER ERA. NATIONAL HURRICANE CENTER.