000 FZPN03 KNHC 311508 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC MON JUL 31 2017 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 MON JUL 31. 24 HOUR FORECAST VALID 1200 UTC TUE AUG 1. 48 HOUR FORECAST VALID 1200 UTC WED AUG 2. .WARNINGS. ...TROPICAL STORM WARNING... .TROPICAL STORM IRWIN NEAR 21.9N 127.3W 1004 MB AT 1500 UTC JUL 31 MOVING NNW OR 335 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM E SEMICIRCLE...40 NM SW QUADRANT AND 30 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 75 NM NE QUADRANT...60 NM SE QUADRANT...15 NM SW QUADRANT...AND 45 NM NW QUADRANT WITH SEAS TO 18 FT. ELSEWHERE WITHIN 75 NM OF CENTER EXCEPT 120 NM NE QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 18N TO 23N BETWEEN 122W AND 130W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .24 HOUR FORECAST POST-TROPICAL REMNANT LOW IRWIN NEAR 25.6N 129.3W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 75 NM OF CENTER EXCEPT 120 NM NE QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. ELSEWHERE FROM 23N TO 28N BETWEEN 126W AND 131W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .48 HOUR FORECAST POST-TROPICAL REMNANT LOW IRWIN NEAR 28.4N 131.9W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. WITHIN 60 NM N SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 FT. .72 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. .LOW PRES...REMNANTS OF HILARY...NEAR 27N130W 1009 MB. WITHIN 150 NM N SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE N OF 23N BETWEEN 126W AND 134W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .24 HOUR FORECAST LOW PRES...REMNANTS OF HILARY...NEAR 28N134W 1012 MB. N OF 27N BETWEEN 133W AND 136W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .36 HOUR FORECAST LOW PRES...REMNANTS OF HILARY...DISSIPATED. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .FROM 23N TO 26N BETWEEN 112W AND 115W WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SW SWELL. .12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .WITHIN AREA BOUNDED BY 00N130W TO 08N103W TO 08N78W TO 03.4S82W TO 03.4S120W TO 00N130W...EXCEPT LEE OF GALAPAGOS ISLANDS... WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SW AND NW SWELL. .24 HOUR FORECAST WITHIN AREA BOUNDED BY 00N135W TO 08N120W TO 08N92W TO 03.4S92W TO 03.4S120W TO 00N135W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED S AND NW SWELL. .48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .30 HOUR FORECAST LOW PRES NEAR 10N93.5W 1010 MB. WITHIN 240 NM NE SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 FT. .48 HOUR FORECAST LOW PRES NEAR 11N96.5W 1008 MB. WITHIN 270 NM NE SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 1500 UTC MON JUL 31... .TROPICAL STORM IRWIN...SCATTERED MODERATE WITHIN 60 NM SE SEMICIRCLE. .TROPICAL WAVE N OF 07N ALONG 90W...SCATTERED MODERATE ISOLATED STRONG FROM 05N TO 13N BETWEEN 85W AND 95W. .TROPICAL WAVE N OF 08N ALONG 96W...SCATTERED MODERATE ISOLATED STRONG N OF 12N BETWEEN 93W AND 98W...INCLUDING THE GULF OF TEHUANTEPEC. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH AXIS EXTENDS FROM 10N83W TO 08N90W TO 10N110W TO 10N115W. ITCZ AXIS EXTENDS FROM 10N115W TO 07N131W WITH A NORTHERN EXTENSION FROM 13N127W TO 10N140W. SCATTERED MODERATE FROM 02N TO 07N BETWEEN 78W AND 81W AND ALSO FROM 06N TO 09N BETWEEN 99W AND 103W. $$ .FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.