OPC East and Central N Pacific High Seas Forecast
by Ocean Prediction Center web team 30 Mar 2026 at 5:27am FZPN02 KWBC 301125 HSFEPI HIGH SEAS FORECAST FOR METAREA XII NWS OCEAN PREDICTION CENTER WASHINGTON DC 1145 UTC MON MAR 30 2026 CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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). FROM APRIL 1 TO OCTOBER 15, DUE TO CLIMATOLOGY OF THE NORTH PACIFIC, HIGH SEAS FORECASTS WILL ONCE AGAIN INCLUDE ALL FORECASTS OF WINDS 20 TO 30 KNOTS AND SEAS 2.5 METERS OR GREATER. SECURITE PACIFIC S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT TO 53N172E TO 50N180W TO 30N180W ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS SYNOPSIS VALID 0600 UTC MAR 30. 24 HOUR FORECAST VALID 0600 UTC MAR 31. 48 HOUR FORECAST VALID 0600 UTC APR 01. .WARNINGS. ...GALE WARNING... .COMPLEX LOW WITH MAIN CENTER 32N143W 1011 MB MOVING NE 20 KT. WITHIN 360 NM W AND NW OF A LINE FROM 30N147W TO 35N144W TO 40N132W WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE S OF 44N BETWEEN 133W AND 169W WINDS 20 TO 30 KT. SEAS TO 4 M. .24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 36N134W 1012 MB. S OF 44N BETWEEN 136W AND 170W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. .48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS DIMINISHED. ...GALE WARNING... .LOW 54N153W 1006 MB MOVING NE 10 KT. WITHIN 420 NM SW QUADRANT WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M. .24 HOUR FORECAST LOW 55N147W 994 MB. WITHIN 240 NM W SEMICIRCLE AND WITHIN 240 NM SE OF A LINE FROM 56N144W TO 51N139W TO 45N141W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. .48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 50N139W 991 MB. WITHIN 360 NM NE...660 NM SE...420 NM SW...AND 480 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ...GALE WARNING... .COMPLEX LOW WITH MAIN CENTER W OF AREA NEAR 44N173E 1005 MB MOVING NE 15 KT AND SECOND CENTER 49N163W 1012 MB MOVING E 40 KT. WITHIN 360 NM SE OF A LINE FROM 38N174E TO 43N176E TO 48N163W TO 48N153W WINDS 25 TO 35 KT. SEAS TO 4 M. .24 HOUR FORECAST LOW W OF AREA NEAR 48N179E 1002 MB WITH SECOND CENTER DISSIPATED. WITHIN 300 NM E SEMICIRCLE AND WITHIN 240 NM SE OF A LINE FROM 37N177W TO 45N171W TO 46N154W WINDS 25 TO 35 KT. SEAS TO 4 M. .48 HOUR FORECAST LOW 52N174E 995 MB. WITHIN 360 NM NE...300 NM SE...480 NM SW...AND 300 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS TO 2.5 TO 5 M. .SYNOPSIS AND FORECAST. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 47N TO 58N BETWEEN 143W AND 157W...FROM 56N TO 62N BETWEEN 157W AND 174W AND WITHIN 180 NM NW OF A LINE FROM 43N180W TO 46N176W TO 48N165W. .24 HOUR FORECAST DENSE FOG FROM 51N TO 58N BETWEEN 135W AND 157W AND FROM 44N TO 51N W OF 164W. .48 HOUR FORECAST DENSE FOG FROM 46N TO 56N BETWEEN 161W AND 180W AND WITHIN 120 NM NE OF A LINE FROM 55N146W TO 48N128W. .48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 58N BETWEEN 175W AND 179W. .FORECASTER HYDE. OCEAN PREDICTION CENTER. NWS 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 0600 UTC MON MAR 30. 24 HOUR FORECAST VALID 0600 UTC TUE MAR 31. 48 HOUR FORECAST VALID 0600 UTC WED APR 1. .WARNINGS. ...GALE WARNING... .WITHIN 16N94W TO 16N95W TO 15N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 14N94W TO 15N94W TO 15N96W TO 14N97W TO 13N96W TO 13N95W TO 14N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. WITHIN 11N95W TO 13N99W TO 12N103W TO 10N103W TO 07N99W TO 07N95W TO 11N95W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL. .06 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 13N97W TO 12N97W TO 13N95W TO 14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. WITHIN 08N95W TO 09N99W TO 11N102W TO 11N104W TO 08N102W TO 06N95W TO 08N95W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL. .24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .SYNOPSIS AND FORECAST. .WITHIN 11N86W TO 12N88W TO 11N89W TO 10N89W TO 09N88W TO 10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 M. .24 HOUR FORECAST WITHIN 12N86W TO 11N87W TO 11N88W TO 10N88W TO 10N86W TO 11N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M. .48 HOUR FORECAST WITHIN 11N86W TO 12N86W TO 11N87W TO 10N88W TO 10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. CONVECTION VALID AT 0830 UTC MON MAR 30... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... SURFACE TROUGH FROM 04N77W TO 05N95W. ITCZ FROM 05N95W TO BEYOND 03N140W. SCATTERED SHOWERS ALONG TROUGH. SCATTERED MODERATE ALONG ITCZ AND W OF 120W. .FORECASTER ERA. NATIONAL HURRICANE CENTER. NATIONAL WEATHER SERVICE HONOLULU HI NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W SYNOPSIS VALID 0600 UTC MAR 30 2026. 24 HOUR FORECAST VALID 0600 UTC MAR 31 2026. 48 HOUR FORECAST VALID 0600 UTC APR 01 2026. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 25N140W 19N145W 11N151W 08N175W 04N180W NEARLY STATIONARY. SCATTERED MODERATE TSTMS FROM 03N TO 07N W OF 170W. .24 HOUR FORECAST TROUGH 23N140W 13N160W 07N177W 05N180W. .48 HOUR FORECAST TROUGH 22N140W 07N180W. .TROUGH 19N144W 13N146W 12N150W 04N155W NEARLY STATIONARY. SCATTERED MODERATE TSTMS FROM 06N TO 10N BETWEEN 155W AND 146W. .24 HOUR FORECAST TROUGH DISSIPATED. .NE TO E WINDS 20 TO 30 KT N OF 28N BETWEEN 153W AND 159W. WINDS 20 TO 25 KT ELSEWHERE BETWEEN LINES 30N149W 16N162W 11N180W AND 30N165W 24N180W. .24 HOUR FORECAST NE TO E WINDS 20 TO 30 KT FROM 14N AND 22N WEST OF 160W...AND IN AREA BOUNDED BY 30N147W 24N155W 16N154W 23N165W 30N155W. .48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FRON 12N TO 22N BETWEEN 152W AND 172W. .WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA. .SEAS 4 TO 5 M N OF 27N BETWEEN 158W AND 152W. SEAS 2.5 TO 4 M ELSEWHERE IN AREA BETWEEN LINES 30N145W 21N150W 08N180W AND 30N170W 24N180W. .24 HOUR FORECAST SEAS 2.5 TO 4 M IN AREA BETWEEN LINES 30N142W 17N148W 14N153W 09N180W AND 30N171W 25N180W. .48 HOUR FORECAST SEAS 2.5 TO 4 M IN AREA BETWEEN LINES 30N145W 18N148W 09N165W 09N180W AND 30N160W 22N180W. .SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA. .SCATTERED MODERATE TSTMS FROM 16N TO 18N BETWEEN 153W AND 158W... AND FROM 05N08N BETWEEN 144W AND 150W. $$ .FORECASTER M BALLARD. HONOLULU HI. See NWS for further details |