000 FZPN03 KNHC 181545 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC FRI AUG 18 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 FRI AUG 18. 24 HOUR FORECAST VALID 1200 UTC SAT AUG 19. 48 HOUR FORECAST VALID 1200 UTC SUN AUG 20. .WARNINGS. ...HURRICANE WARNING... .HURRICANE HILARY NEAR 17.9N 111.4W 939 MB AT 1500 UTC AUG 18 MOVING NNW OR 330 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 125 KT GUSTS 150 KT. TROPICAL STORM FORCE WINDS WITHIN 250 NM NE QUADRANT...170 NM SE QUADRANT...90 NM SW QUADRANT...AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM W SEMICIRCLE...360 NM NE QUADRANT AND 330 NM SE QUADRANT WITH SEAS TO 42 FT. ELSEWHERE WITHIN 360 NM E AND 210 NM W SEMICIRCLES WINDS 20 TO 33 FT. SEAS 8 TO 12 FT FROM 07N TO 23N BETWEEN 101W AND 116W...INCLUDING THE WATERS NEAR CABO CORRIENTES...BETWEEN LAS MARIA ISLANDS AND LOS CABOS...AND THE ENTRANCE TO THE GULF OF CALIFORNIA TO ABOUT 24N IN THE SOUTHERN PART OF THE GULF. .24 HOUR FORECAST HURRICANE HILARY NEAR 21.3N 113.6W. MAXIMUM SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 240 NM NE QUADRANT...180 NM SE QUADRANT...140 NM SW QUADRANT...AND 170 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 360 NM E AND 330 NM W SEMICIRCLES WITH SEAS TO 43 FT. ELSEWHERE FROM 10N TO 26N BETWEEN 105W AND 119W...INCLUDING THE WATERS NEAR CABO CORRIENTES...BETWEEN LAS MARIA ISLANDS AND LOS CABOS...THE ENTRANCE TO THE GULF OF CALIFORNIA...AND THE SOUTHERN GULF OF CALIFORNIA S OF 26N...WINDS 20 TO 33 KT. SEAS 9 TO 14 FT. REMAINDER OF THE AREA FROM 08N TO 27N E OF 125W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE HILARY NEAR 26.8N 115.2W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 220 NM NE QUADRANT...180 NM SE QUADRANT...120 NM SW QUADRANT...AND 140 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM OF CENTER...INCLUDING THE CENTRAL GULF OF CALIFORNIA...EXCEPT 480 NM SE QUADRANT WITH SEAS TO 36 FT. ELSEWHERE FROM 20N TO 29N BETWEEN 107W AND 120W...INCLUDING THE NORTHERN AND SOUTHERN GULF OF CALIFORNIA...WINDS 20 TO 33 FT. SEAS 8 TO 12 FT. REMAINDER OF THE AREA FROM 09N TO 30N E OF A LINE FROM 30N130W TO 19N129W TO 10N120W...INCLUDING WATERS BETWEEN ISLAS MARIAS AND CABO CORRIENTES WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .72 HOUR FORECAST TROPICAL STORM HILARY INLAND NEAR 35.2N 117.4W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 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 FERNANDA...NEAR 16N137W 1006 MB. WITHIN 180 NM N AND 60 NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. REMAINDER OF THE AREA FROM 14N TO 20N BETWEEN 133W AND 139W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .18 HOUR FORECAST LOW PRES NEAR 16N140W 1009 MB. OVER FORECAST WATERS WITHIN 180 NM N SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. .24 HOUR FORECAST LOW PRES W OF AREA NEAR 16N142W. OVER FORECAST WATERS FROM 16N TO 18N W OF 138W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL. .30 HOUR FORECAST LOW PRES WELL W OF AREA. OVER FORECAST WATERS WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N96W ...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 1530 UTC FRI AUG 18... .HURRICANE HILARY...NUMEROUS STRONG IS TIGHTLY COILED AROUND THE EYE 60 NM IN THE S SEMICIRCLE. NUMEROUS MODERATE TO STRONG CONVECTION IS ELSEWHERE WITHIN 90 NM OF THE CENTER FROM 16N TO 19N BETWEEN 109W AND 112W. A WIDE OUTER BAND CONSISTS OF NUMEROUS MODERATE TO STRONG WITHIN 45 NM OF A LINE FROM 16N108W TO 14N111W TO 15N114W AND CONTINUES WITHIN 30 NM OF 15N114W TO 19N114W. SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM OF A LINE FROM 09N117W TO 10N112W TO 13N109W. .TROPICAL WAVE ALONG 94W N OF 04N...NUMEROUS MODERATE ISOLATED STRONG FROM 10N TO 14N BETWEEN THE WAVE AND 89W. SCATTERED MODERATE ISOLATED STRONG WITHIN 30 NM OF THE WAVE FROM 04N TO 06N. .SCATTERED MODERATE WITHIN 30 NM OF 12N119W AND WITHIN 30 NM 12N121W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH AXIS EXTENDS FROM 10N84W TO 07N95W TO 12N102W. IT RESUMES SW OF HURRICANE HILARY AT 11N120W TO 09N131W TO 06N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 30 NM OF THE TROUGH BETWEEN 123W AND 126W. SCATTERED MODERATE WITHIN 30 NM OF THE TROUGH BETWEEN 120W AND 127W AND WITHIN 30 NM S OF THE TROUGH BETWEEN 137W AND 139W. $$ .FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.