000 FZPN03 KNHC 171558 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC THU AUG 17 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 THU AUG 17. 24 HOUR FORECAST VALID 1200 UTC FRI AUG 18. 48 HOUR FORECAST VALID 1200 UTC SAT AUG 19. .WARNINGS. ...HURRICANE WARNING... .HURRICANE HILARY NEAR 15.5N 107.8W 980 MB AT 1500 UTC AUG 17 MOVING WNW OR 300 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 240 NM NE QUADRANT...180 NM SE QUADRANT...100 NM SW QUADRANT...AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM E SEMICIRCLE...150 NM SW QUADRANT AND 180 NM NW QUADRANT WITH SEAS TO 30 FT. ELSEWHERE WITHIN 360 NM E AND 180 NM W SEMICIRCLES WINDS 20 TO 33 FT. SEAS 9 TO 14 FT. REMAINDER OF THE AREA FROM 06N TO 19N BETWEEN 98W AND 108W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE HILARY NEAR 17.6N 111.2W. MAXIMUM SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 250 NM NE QUADRANT...220 NM SE QUADRANT...120 NM SW QUADRANT...AND 170 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 360 NM E AND 240 NM W SEMICIRCLES WITH SEAS TO 36 FT. ELSEWHERE WITHIN 420 NM E AND 300 NM W SEMICIRCLES WINDS 20 TO 33 FT. SEAS 10 TO 17 FT FROM 06N TO 23N BETWEEN 100W AND 115W...INCLUDING THE WATERS NEAR CABO CORRIENTES...BETWEEN LAS MARIA ISLANDS AND LOS CABOS...AND THE ENTRANCE TO THE GULF OF CALIFORNIA. REMAINDER OF THE AREA FROM 06N TO 24N BETWEEN 98W AND 108W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE HILARY NEAR 21.2N 113.7W. MAXIMUM SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 250 NM NE QUADRANT...220 NM SE QUADRANT...150 NM SW QUADRANT...AND 180 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 420 NM E SEMICIRCLE...240 NM SW QUADRANT...AND 270 NM NW QUADRANT WITH SEAS TO 47 FT. ELSEWHERE FROM 10N TO 25N BETWEEN 106W AND 118W...INCLUDING THE SOUTHERN GULF OF OF CALIFORNIA... WINDS 20 TO 33 FT. SEAS 10 TO 17 FT. REMAINDER OF THE AREA FROM 07N TO 27N E OF 125W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE HILARY NEAR 26.6N 115.0W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST TROPICAL STORM HILARY INLAND NEAR 33.4N 116.8W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. .120 HOUR FORECAST POST-TROPICAL HILARY NEAR 41.0N 119.0W. 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. .POST-TROPICAL CYCLONE FERNANDA NEAR 16.4N 132.2W 1005 MB AT 1500 UTC AUG 17 MOVING W OR 270 DEG AT 13 KT. WITHIN 180 NM N AND 60 NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS 9 TO 14 FT. REMAINDER OF THE AREA FROM 12N TO 21N BETWEEN 127W AND 135W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .12 HOUR FORECAST POST-TROPICAL REMNANT LOW FERNANDA NEAR 16.4N 134.1W 1006 MB. WITHIN 180 NM N AND 60 NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. ELSEWHERE FROM 13N TO 21N BETWEEN 130W AND 136W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST LOW PRES...REMNANT LOW OF FERNANDA...NEAR 16.4N 136.6W 1008 MB. WITHIN 90 NM N AND 30 NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 14N TO 20N BETWEEN 134W AND 139W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .48 HOUR FORECAST LOW PRES...REMNANT LOW OF FERNANDA...W OF AREA NEAR 16.3N 141.7W 1008 MB. OVER FORECAST WATERS FROM 16N TO 20N W OF 138W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .WITHIN 30 NM EITHER SIDE OF LINE FROM 11N86W TO 10N89W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 1545 UTC THU AUG 17... .HURRICANE HILARY...NUMEROUS STRONG WITHIN 150 NM NE AND 120 NM SE QUADRANTS. NUMEROUS MODERATE TO STRONG ELSEWHERE FROM 09N TO 18N BETWEEN 102W AND 114W...AND WITHIN 60 NM OF AN OUTER RAIN BAND THAT EXTENDS FROM 21N106W TO 10N110W TO 15N112W. .POST-TROPICAL CYCLONE FERNANDA...NO SIGNIFICANT CONVECTION NOTED. .TROPICAL WAVE ALONG 93W N OF 04N...SCATTERED MODERATE ISOLATED STRONG WITHIN 120 NM W OF WAVE FROM 05N TO 11N. .SCATTERED MODERATE FROM 05N TO 09N BETWEEN 77W AND 79W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH AXIS EXTENDS FROM 09N83W TO 09N95W. IT RESUMES WSW OF HURRICANE HILARY FROM NEAR 12N115W TO 11N125W AND TO 07N135W. THE ITCZ EXTENDS FROM 08N135W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG FROM 03N TO 07N BETWEEN 81W AND 89W... AND WITHIN 180 NM S OF TROUGH BETWEEN 121W AND 127W. SCATTERED MODERATE WITHIN 120 NM S OF TROUGH BETWEEN 127W AND 133W AND WITHIN 60 NM OF TROUGH BETWEEN 84W AND 87W. $$ .FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.