


High Seas Forecast
Issued by NWS
Issued by NWS
117 FZPN02 KWBC 232325 HSFEPI HIGH SEAS FORECAST FOR METAREA XII NWS OCEAN PREDICTION CENTER WASHINGTON DC 2345 UTC WED JUL 23 2025 CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE NATIONAL WEATHER SERVICE. EMAIL US AT VOSOPS@NOAA.GOV(LOWERCASE). FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM). SECURITE PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT TO 50N 160E ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS SYNOPSIS VALID 1800 UTC JUL 23. 24 HOUR FORECAST VALID 1800 UTC JUL 24. 48 HOUR FORECAST VALID 1800 UTC JUL 25. .WARNINGS. ...GALE WARNING... .LOW 59N143W 1011 MB NEARLY STATIONARY THEN MOVING NW 10 KT AFTER 24 HOURS. FROM 58N TO 60N BETWEEN 148W AND 154W WINDS 25 TO 35 KT. SEAS TO 3 M. ELSEWHERE WITHIN 480 NM S AND SW AND 360 NM W QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M. .24 HOUR FORECAST LOW 59N144W 1012 MB. FROM 58N TO 60N BETWEEN 149W AND 154W WINDS 25 TO 35 KT. SEAS TO 3 M. ELSEWHERE WITHIN 300 NM W AND 420 NM SW AND S QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M. .48 HOUR FORECAST LOW 60N150W 1011 MB. N OF 52N BETWEEN 147W AND 162W WINDS TO 25 KT. SEAS TO 2.5 M. .SYNOPSIS AND FORECAST. .COMPLEX LOW WITH MAIN LOW 42N163E 1006 MB DRIFTING N. WITHIN 720 NM E QUADRANT WINDS TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 43N163E 1008 MB. E OF 166E WITHIN 660 NM E AND 480 NM NE QUADRANTS WINDS TO 25 KT. SEAS TO 3 M. .48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 46N163E 1008 MB. WITHIN 420 NM E OF A LINE FROM 39N170E TO 53N165E AREA OF SE WINDS 20 TO 30 KT. SEAS TO 4 M. .LOW S OF AREA NEAR 29N169W 1015 MB DRIFTING NW. FROM 30N TO 39N BETWEEN 167W AND 177W WINDS TO 25 KT. SEAS TO 2.5 M. .24 HOUR FORECAST LOW 31N170W 1015 MB. WITHIN 660 NM N AND 480 NM NE QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M. .48 HOUR FORECAST LOW 33N171W 1016 MB. WITHIN 660 NM N AND 480 NM NE QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M. .24 HOUR FORECAST LOW 62N173W 1013 MB. WITHIN 240 NM SE QUADRANT WINDS TO 25 KT. SEAS LESS THAN 2.5 M. .48 HOUR FORECAST LOW DISSIPATED INLAND WITH ASSOCIATED CONDITIONS AS DESCRIBED WITH LOW 60N150W IN WARNINGS SECTION. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM W OF A LINE FROM 55N175E TO 52N162W TO 42N175E...AND FROM 59N TO 62N BETWEEN 167W AND 176W. .24 HOUR FORECAST DENSE FOG W OF A LINE FROM 59N171W TO 55N170W TO 51N159W TO 47N175E...AND FROM 41N TO 47N BETWEEN 175E AND 163E. .48 HOUR FORECAST DENSE FOG N OF A LINE FROM 55N178W TO 54N174E TO 40N173E TO 47N160E...FROM 55N TO 60N BETWEEN 170W AND 178W...AND WITHIN 240 NM S OF A LINE FROM 53N158W TO 54N170W. .FORECASTER BANCROFT. OCEAN PREDICTION CENTER. NATIONAL HURRICANE CENTER MIAMI FL E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE EQUATOR E OF 120W SYNOPSIS VALID 1800 UTC WED JUL 23. 24 HOUR FORECAST VALID 1800 UTC THU JUL 24. 48 HOUR FORECAST VALID 1800 UTC FRI JUL 25. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 15N133W TO 15N137W TO 14N139W TO 11N138W TO 10N135W TO 12N133W TO 15N133W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL. WITHIN 15N122W TO 15N126W TO 14N127W TO 12N127W TO 11N124W TO 13N122W TO 15N122W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL. .24 HOUR FORECAST WITHIN 16N128W TO 16N133W TO 13N134W TO 11N131W TO 13N128W TO 16N128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL. .48 HOUR FORECAST WITHIN 15N131W TO 17N133W TO 16N135W TO 14N135W TO 13N133W TO 14N131W TO 15N131W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL. .09 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO 14N96W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .30 HOUR FORECAST WITHIN 30N116W TO 30N117W TO 29N117W TO 28N116W TO 28N115W TO 29N115W TO 30N116W...INCLUDING SEBASTIAN VIZCAINO BAY... NW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. CONVECTION VALID AT 2150 UTC WED JUL 23... .TROPICAL WAVE WITH AXIS NEAR 95W...SCATTERED MODERATE FROM 05N TO 15N BETWEEN 90W AND 103W. .TROPICAL WAVE WITH AXIS NEAR 120W FROM 06N TO 17N...SCATTERED MODERATE FROM 07N TO 17N BETWEEN 110W AND 130W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH EXTENDS FROM 08N83W TO 08N93W TO 07N103W. THE ITCZ BEGINS NEAR 07N103W AND CONTINUE TO 10N118W THEN RESUMES FROM 10N121W TO 08N129W TO 10N136W. NUMEROUS MODERATE TO STRONG FROM 07N TO 14N BETWEEN 134W AND 139W. SCATTERED MODERATE N OF 02N E OF 90W. $$ .FORECASTER RAMOS. NATIONAL HURRICANE CENTER. NATIONAL WEATHER SERVICE HONOLULU HI NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E SYNOPSIS VALID 1800 UTC JUL 23 2025. 24 HOUR FORECAST VALID 1800 UTC JUL 24 2025. 48 HOUR FORECAST VALID 1800 UTC JUL 25 2025. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .LOW NEAR 28N168W 1015 MB MOVING N SLOWLY. TROUGH FROM LOW TO 25N170W NEARLY STATIONARY. ISOLATED MODERATE TSTMS N OF 25N BETWEEN 175W AND 165W. .24 HOUR FORECAST LOW MOVED N OF AREA. TROUGH 30N167W 27N168W 26N171W. .48 HOUR FORECAST TROUGH DISSIPATED. .TROUGH 18N145W 15N146W 10N145W MOVING W 10 KT. WINDS 20 TO 25 KT FROM 15N TO 20N BETWEEN 145W AND 150W. .24 HOUR FORECAST TROUGH 19N142W 15N143W 10N142W. WINDS WEAKENING TO LESS THAN 20 KT. .48 HOUR FORECAST TROUGH DISSIPATED. .48 HOUR FORECAST NEW LOW NEAR 29N174W. TROUGH FROM LOW TO 26N174W 26N179W. .WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA. .SEAS 2.5 TO 3 M WITHIN 180 NM OF LINE 17N145W 13N150W 09N155W. .24 HOUR FORECAST SEAS 2.5 TO 3 M WITHIN 180 NM OF POINT 15N151W. .48 HOUR FORECAST SEAS SUBSIDING TO LESS THAN 2.5 M. .SEAS 2.5 M OR LESS OVER REMAINDER OF FORECAST AREA. .ITCZ 10N150W 10N160W 12N170W 06N178W. SCATTERED MODERATE TO STRONG TSTMS WITHIN 300 NM OF ITCZ BETWEEN 150W AND 175W. 179E AND 151W. ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 120 NM. .ISOLATED MODERATE TSTMS FROM 17N TO 09N W OF 168W. $$ .FORECASTER PECHACEK. HONOLULU HI.