000 FZPN03 KNHC 150920 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC TUE AUG 15 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC TUE AUG 15. 24 HOUR FORECAST VALID 0600 UTC WED AUG 16. 48 HOUR FORECAST VALID 0600 UTC THU AUG 17. .WARNINGS. ...HURRICANE WARNING... .HURRICANE FERNANDA NEAR 16.9N 120.7W 967 MB AT 0900 UTC AUG 15 MOVING WNW OR 290 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM N SEMICIRCLE AND 60 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 90 NM OF CENTER EXCEPT 120 NM NE QUADRANT WITH SEAS TO 32 FT. ELSEWHERE WITHIN 180 NM N AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF THE AREA FROM 10N TO 20N BETWEEN 116W AND 125W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE FERNANDA NEAR 17.7N 124.7W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM N SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 90 NM OF CENTER...EXCEPT 120 NM NE QUADRANT WITH SEAS TO WITH SEAS TO 28 FT. ELSEWHERE WITHIN 180 NM N AND 90 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF THE AREA FROM 13N TO 22N BETWEEN 120W AND 130W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .36 HOUR FORECAST TROPICAL STORM FERNANDA NEAR 17.9N 127.3W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. .48 HOUR FORECAST TROPICAL STORM FERNANDA NEAR 18.0N 130.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 20 NM S SEMICIRCLE...50 NM NE QUADRANT AND 40 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM N AND 60 NM S SEMICIRCLES WITH SEAS TO 20 FT. ELSEWHERE WITHIN 150 NM N AND 90 M S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF THE AREA FROM 13N TO 22N BETWEEN 126W AND 134W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .72 HOUR FORECAST POST-TROPICAL REMNANT LOW FERNANDA NEAR 18.3N 135.9W. 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 FERNANDA NEAR 18.5N 142.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. .120 HOUR FORECAST POST-TROPICAL REMNANT LOW FERNANDA NEAR 18.4N 148.5W. 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. ...GALE WARNING... .LOW PRES NEAR 09.5N96.5W 1008 MB. FROM 11N TO 14N BETWEEN 90W AND 97W E TO SE WINDS 20 TO 25 KT. SEAS TO 8 FT. FROM 07N TO 10N BETWEEN 94W AND 97W SW TO W WINDS 20 TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 11.5N100W 1007 MB. WITHIN 120 NM NE AND SE QUADRANT...AND 70 NM NW QUADRANT WINDS 25 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE FROM 10N TO 15N BETWEEN 92W AND 101W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 13.5N105.5W 1005 MB. WITHIN 210 NM NE AND SE QUADRANT...120 NM SW QUADRANT...AND 180 NM NW QUADRANT WINDS 30 TO 40 KT. SEAS 10 TO 14 FT. ELSEWHERE FROM 10N TO 18N BETWEEN 95W AND 107W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .SYNOPSIS AND FORECAST. .N OF 15N BETWEEN 94.5W AND 95.5...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .06 HOUR FORECAST WITHIN 15 NM OF A LINE FROM 16N95W TO 14N97W...INCLUDING THE GULF OF TEHUANTEPEC...NE WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. .12 HOUR FORECAST CONDITIONS MERGED. .24 HOUR FORECAST ELSEWHERE SE OF A LINE FROM 10N101W TO 07N108W TO ANOTHER LINE FROM 10N95W TO 04N100W TO 04N106W SW WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. .48 HOUR FORECAST ELSEWHERE SE OF A LINE FROM 10N105W TO 06N108W TO ANOTHER LINE FROM 10N97W TO 07N100W TO 04N108W SW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 0900 UTC TUE AUG 15... .HURCN FERNANDA...NUMEROUS MODERATE TO STRONG WITHIN 90 NM OF CENTER. .LOW PRES NEAR 09.5N95.5N (EP90)...SCATTERED MODERATE AND ISOLATED STRONG FROM 06N TO 12N BETWEEN 90W AND 100W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH EXTENDS FROM 10N84W TO 1008 MB LOW PRESSURE LOCATED NEAR 09.5N96.5W TO 11N114W. THE ITCZ AXIS STRETCHES FROM 11N124W TO 12N140W. SCATTERED MODERATE AND ISOLATED STRONG CONVECTION IS NOTED FROM 06N TO 12N BETWEEN 90W AND 100W...AND FROM 05N TO 10N BETWEEN 100W AND 112W. CLUSTERS OF MODERATE TO STRONG CONVECTION ARE NOTED IN THE TEHUNATEPEC REGION NEAR 15N95W...AND FROM 15N TO 19N BETWEEN 100W AND 106W. $$ .FORECASTER GR. NATIONAL HURRICANE CENTER.