194 FZPN02 KWBC 171125 HSFEPI HIGH SEAS FORECAST FOR METAREA XII NWS OCEAN PREDICTION CENTER WASHINGTON DC 1145 UTC FRI APR 17 2026 CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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). 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 APR 17. 24 HOUR FORECAST VALID 0600 UTC APR 18. 48 HOUR FORECAST VALID 0600 UTC APR 19. .WARNINGS. ...STORM WARNING... .LOW W OF AREA NEAR 46N169E 985 MB MOVING NE 20 KT. WITHIN 600 NM E QUADRANT WINDS TO 25 KT. SEAS TO 2.5 M. .06 HOUR FORECAST LOW W OF AREA NEAR 48N172E 981 MB. WITHIN 480 NM E QUADRANT WINDS 25 TO 35 KT. SEAS TO 3 M. .24 HOUR FORECAST LOW 53N176E 967 MB. WITHIN 300 NM N QUADRANT AND 300 NM NW SEMICIRCLE WINDS 40 TO 50 KT. SEAS 4 TO 8.5 M. ELSEWHERE N OF A LINE FROM 34N180W TO 52N161W WINDS 25 TO 40 KT. SEAS 2.5 TO 6.5 M...HIGHEST NEAR 51N174W JUST S OF THE ALEUTIAN ISLANDS. .48 HOUR FORECAST LOW 56N179W 967 MB. WITHIN 300 NM NW AND SW SEMICIRCLES WINDS 40 TO 50 KT. SEAS 4 TO 8 M. ELSEWHERE N OF 44N W OF 155W WINDS 25 TO 40 KT. SEAS 2.5 TO 6.5 M...HIGHEST NEAR 54N175E AND WITHIN 120 NM S OF ALEUTIAN ISLANDS BETWEEN 162W AND 178E. ALSO S OF 44N W OF 164W AND N OF 54N BETWEEN 155W AND 147W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M...HIGHEST NEAR 38N178W. ...GALE WARNING... .LOW 46N145W 1009 MB MOVING NE 10 KT. WITHIN 300 NM NE OF A LINE FROM 47N145W TO 40N136W WINDS 20 TO 30 KT. SEAS TO 3.5 M. .24 HOUR FORECAST LOW 49N142W 1000 MB. FROM 40N TO 52N BETWEEN 138W AND 154W WINDS 25 TO 35 KT. SEAS TO 3.5 M. ELSEWHERE FROM 42N TO 54N BETWEEN 128W AND 140W WINDS 20 TO 30 KT. SEAS TO 3.5 M. .48 HOUR FORECAST LOW 46N137W 996 MB. FROM 35N TO 56N BETWEEN 133W AND 150W WINDS 25 TO 40 KT. SEAS 2.5 TO 6 M...HIGHEST NEAR 47N140W. ELSEWHERE WITHIN 90 NM E OF A LINE FROM 52N131W TO 48N127W WINDS 20 TO 30 KT. SEAS TO 3 M. ...GALE WARNING... .24 HOUR FORECAST LOW W OF AREA NEAR 39N176E 992 MB. W OF A LINE FROM 40N170W TO 32N180W WINDS 25 TO 35 KT. SEAS 2.5 TO 5.5 M...HIGHEST NEAR 180W. .48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW 56N179W DESCRIBED ABOVE. ...HEAVY FREEZING SPRAY WARNING... .LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF 174W. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 60N W OF 176W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF 174W. .SYNOPSIS AND FORECAST. .FROM 30N TO 43N BETWEEN 119W AND 130W N TO NW WINDS 20 TO 30 KT. SEAS TO 3.5 M. .24 HOUR FORECAST S OF 41N E OF 127W WINDS LESS THAN 25 KT. SEAS TO 2.5 M. .48 HOUR FORECAST CONDITIONS DIMINISHED. .LOW 58N152W 1008 MB MOVING E 05 KT. N OF 54N BETWEEN 141W AND 150W WINDS TO 25 KT. SEAS TO 2.5 M. .24 HOUR FORECAST LOW 59N148W 1010 MB. WITHIN 240 NM W QUADRANT WINDS TO 25 KT. SEAS TO 2.5 M. .48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS DIMINISHED. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 57N W OF 173W...FROM 54N TO 58N BETWEEN 141W AND 147W AND FROM 41N TO 46N BETWEEN 138W AND 146W. .24 HOUR FORECAST DENSE FOG FROM 51N TO 59N W OF 163W...N OF 47N BETWEEN 137W AND 149W...AND FROM 41N TO 51N BETWEEN 130W AND 142W. .48 HOUR FORECAST DENSE FOG WITHIN THE BERING SEA W OF 169W AND FROM 43N TO 49N BETWEEN 137W AND 141W. .FORECASTER JOSEPH. 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 FRI APR 17. 24 HOUR FORECAST VALID 0600 UTC SAT APR 18. 48 HOUR FORECAST VALID 0600 UTC SUN APR 19. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 23N109W TO 23N111W TO 22N111W TO 22N110W TO 21N109W TO 22N108W TO 23N109W...INCLUDING WITHIN 60 NM OF SHORE... NW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST WITHIN 23N109W TO 23N111W TO 22N111W TO 22N110W TO 21N109W TO 22N108W TO 23N109W...INCLUDING WITHIN 60 NM OF SHORE... NW 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. .WITHIN 30N120W TO 30N125W TO 29N124W TO 29N120W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL. .24 HOUR FORECAST WITHIN 30N120W TO 30N126W TO 29N125W TO 28N122W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL. .30 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 0730 UTC FRI APR 17... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A SURFACE TROUGH EXTENDS FROM COASTAL PANAMA NEAR 09N79W TO 05N100W. THE ITCZ BEGINS AT 05N100W TO A 1012 MB LOW NEAR 06N111W, THEN BEYOND 05N140W. SCATTERED MODERATE AND ISOLATED STRONG CONVECTION IS OCCURRING FROM 03N-08N BETWEEN 90W-135W. A SOUTHERN HEMISPHERE ITCZ EXTENDS FROM 04S93W TO 03S140W. ISOLATED MODERATE CONVECTION IS OBSERVED FROM 03S-08S BETWEEN 85W-89W. .FORECASTER LANDSEA. NATIONAL HURRICANE CENTER. NATIONAL WEATHER SERVICE HONOLULU HI NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W SYNOPSIS VALID 0600 UTC APR 17 2026. 24 HOUR FORECAST VALID 0600 UTC APR 18 2026. 48 HOUR FORECAST VALID 0600 UTC APR 19 2026. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 30N151W 27N153W 25N156W 23N157W MOVING E SLOWLY. .24 HOUR FORECAST TROUGH 30N145W 29N149W 24N156W. .48 HOUR FORECAST TROUGH MOVED N OF AREA. .24 HOUR FORECAST NEW TROUGH 25N167W 20N171W. .48 HOUR FORECAST NEW LOW NEAR 27N168W. TROUGH 28N160W 29N164W TO LOW. ANOTHER TROUGH FROM LOW TO 25N167W 21N170W. WINDS 20 TO 25 KT N OF 28N BETWEEN 158W AND 164W. .48 HOUR FORECAST NEW FRONT 30N177W 28N180W. .48 HOUR FORECAST NEW FRONT 27N140W 27N144W. .WINDS 20 KT OR LESS OVER REMAINDER FORECAST AREA. .SEAS 2.5 M OR LOWER OVER ENTIRE FORECAST AREA. .ITCZ 04N140W 06N160W 06N168W 03N176W 03N180W. SCATTERED MODERATE TSTMS WITHIN 210 NM N OF ITCZ...AND WITHIN 150 NM S OF ITCZ. .ISOLATED MODERATE TSTMS FROM 10N TO 15N BETWEEN 157W AND 171W. $$ .FORECASTER TSAMOUS. HONOLULU HI.