


High Seas Forecast
Issued by NWS
Issued by NWS
717 FZPN01 KWBC 221548 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 1630 UTC TUE APR 22 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 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 1200 UTC APR 22. 24 HOUR FORECAST VALID 1200 UTC APR 23. 48 HOUR FORECAST VALID 1200 UTC APR 24. .WARNINGS. ...STORM WARNING... .COMPLEX LOW WITH MAIN CENTER JUST W OF AREA 46N159E MOVING NE 15 KT. BETWEEN 300 NM AND 600 NM E...AND WITHIN 480 NM SE QUADRANTS...WINDS 40 TO 50 KT. SEAS 15 TO 30 FT. ALSO FROM 34N TO 54N W OF 177E WINDS 25 TO 40 KT. SEAS 11 TO 22 FT. ELSEWHERE FROM 31N TO 55N W OF 179E WINDS 20 TO 30 KT. SEAS 9 TO 18 FT. .24 HOUR FORECAST LOW 51N166E 981 MB. WITHIN 360 NM S SEMICIRCLE WINDS 35 TO 45 KT. SEAS 15 TO 26 FT. ALSO FROM 42N TO 58N W OF 175W WINDS 25 TO 40 KT. SEAS 12 TO 23 FT. AND FROM 37N TO 59N W OF 173W WINDS 20 TO 30 KT. SEAS 9 TO 18 FT. ELSEWHERE WITHIN 1260 NM S QUADRANT WINDS LESS THAN 25 KT. SEAS 9 TO 18 FT IN NW SWELL. .48 HOUR FORECAST LOW 54N173E 986 MB. WITHIN 360 NM S SEMICIRCLE WINDS 30 TO 45 KT. SEAS 12 TO 24 FT. ALSO BETWEEN 300 NM AND 540 NM NE QUADRANT...AND WITHIN 480 NM S SEMICIRCLE WINDS 25 TO 40 KT. SEAS 11 TO 21 FT...HIGHEST S SEMICIRCLE. AND FROM 42N TO 61N W OF 161W WINDS 20 TO 30 KT. SEAS 9 TO 18 FT. ELSEWHERE WITHIN 1440 NM S QUADRANT WINDS LESS THAN 25 KT. SEAS 9 TO 15 FT IN NW SWELL. ...GALE WARNING... .FROM 34N TO 45N BETWEEN 123W AND 132W AREA OF NW TO N WINDS 25 TO 40 KT. SEAS 8 TO 15 FT. WINDS AND SEAS HIGHEST FROM 38N TO 42N. .24 HOUR FORECAST FROM 33N TO 45N BETWEEN 122W AND 129W AREA OF NW TO N WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. .48 HOUR FORECAST S OF 40N BETWEEN 120W AND 126W AREA OF NW WINDS LESS THAN 25 KT. SEAS TO 9 FT. ...GALE WARNING... .LOW 32N169W 1013 MB MOVING S 15 KT. S OF 38N BETWEEN 158W AND 175W WINDS 20 TO 30 KT. SEAS TO 12 FT. .06 HOUR FORECAST LOW 31N169W 1011 MB. S OF 34N BETWEEN 161W AND 173W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. .24 HOUR FORECAST LOW S OF AREA 26N166W 1010 MB. S OF A LINE FROM 33N174W TO 36N166W TO 32N153W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. .48 HOUR FORECAST LOW S OF AREA 27N168W 1011 MB. S OF A LINE FROM 33N175W TO 37N162W TO 32N154W WINDS 20 TO 30 KT. SEAS TO 12 FT. ...GALE WARNING... .LOW 53N162W 1013 MB MOVING NE 25 KT. FROM 47N TO 53N BETWEEN 153W AND 169W WINDS 20 TO 30 KT. SEAS TO 11 FT. .12 HOUR FORECAST LOW 54N153W 1005 MB. FROM 46N TO 54N BETWEEN 144W AND 159W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. .24 HOUR FORECAST LOW 55N147W 996 MB. FROM 49N TO 58N BETWEEN 139W AND 154W WINDS 25 TO 40 KT. SEAS 9 TO 15 FT. ELSEWHERE FROM 44N TO 60N BETWEEN 135W AND 162W WINDS 20 TO 30 KT. SEAS TO 12 FT. .48 HOUR FORECAST LOW 56N144W 999 MB. FROM 49N TO 60N BETWEEN 138W AND 152W...AND WITHIN 60 NM EITHER SIDE OF A LINE FROM 58N138W TO 53N133W...WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. .SYNOPSIS AND FORECAST. .LOW 49N127W 1022 MB MOVING SE 05 KT. FROM 46N TO 50N BETWEEN 125W AND 129W AREA OF NW WINDS 20 TO 30 KT. SEAS TO 9 FT. .24 HOUR FORECAST LOW DISSIPATED. WITHIN 90 NM OF 49N128W AREA OF NW WINDS TO 25 KT. SEAS TO 8 FT. .48 HOUR FORECAST CONDITIONS DIMINISHED. .LOW 54N143W 1022 MB MOVING E 15 KT. WITHIN 180 NM E AND 360 NM S QUADRANTS AREA OF SW WINDS TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW 55N147W IN WARNINGS SECTION ABOVE. .LOW 59N167W 1007 MB MOVING E 15 KT. WITHIN 300 NM S...420 NM SW...AND 360 NM W QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT. .24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED. .48 HOUR FORECAST FROM 39N TO 49N BETWEEN 136W AND 147W WINDS TO 25 KT. SEAS TO 9 FT. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 51N W OF 169E...WITHIN 60 NM EITHER SIDE OF A LINE FROM 51N170E TO 50N176E TO 48N179W TO 48N175W...FROM 51N TO 55N BETWEEN 157W AND 164W...FROM 58N TO 59N BETWEEN 161W AND 166W...AND WITHIN 60 NM OF 60N147W. .24 HOUR FORECAST DENSE FOG NW OF A LINE FROM 50N164E TO 53N176W TO 56N175W...FROM 52N TO 56N BETWEEN 147W AND 151W...FROM 56N TO 59N BETWEEN 140W TO 153W...AND NE OF A LINE FROM 58N137W TO 54N130W. .48 HOUR FORECAST DENSE FOG FROM 46N TO 53N BETWEEN 164W AND 169W...FROM 50N TO 60N W OF 176W...FROM 56N TO 60N BETWEEN 165W AND 176W...AND WITHIN 60 NM NE OF A LINE FROM 55N161W TO 53N158W. .LIGHT TO MODERATE FREEZING SPRAY FROM 59N TO 61N W OF 174W. .24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 59N164W TO 57N167W TO 59N179E. .48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY WITHIN 60 NM OF 59N164W AND N OF A LINE FROM 59N173W TO 60N178W. .FORECASTER FIGURSKEY. 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 1200 UTC TUE APR 22. 24 HOUR FORECAST VALID 1200 UTC WED APR 23. 48 HOUR FORECAST VALID 1200 UTC THU APR 24. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 12N87W TO 12N88W TO 11N89W TO 10N89W TO 09N87W TO 11N86W TO 12N87W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .WITHIN 11N119W TO 13N128W TO 12N140W TO 04N140W TO 08N124W TO 11N119W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E SWELL. .24 HOUR FORECAST WITHIN 11N128W TO 12N140W TO 06N140W TO 07N136W TO 08N129W TO 11N128W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL. .48 HOUR FORECAST WITHIN 11N128W TO 12N140W TO 06N140W TO 07N136W TO 08N129W TO 11N128W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL. .WITHIN 00N113W TO 00N120W TO 03.4S120W TO 03.4S113W TO 00N113W WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SW SWELL. .24 HOUR FORECAST LITTLE CHANGE. .30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 1500 UTC TUE APR 22... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH EXTENDS FROM THE COAST OF PANAMA NEAR 09N79W AND CONTINUES TO 06N101W. THE ITCZ EXTENDS FROM THERE TO BEYOND 03N140W. SCATTERED MODERATE CONVECTION IS NOTED FROM 03N-07N EAST OF 102W AND FROM 04N-09N BETWEEN 122W-132W. $$ .FORECASTER LANDSEA. NATIONAL HURRICANE CENTER.