FZPN01 KWBC 050421 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 0430 UTC FRI DEC 05 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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). PLEASE SEE PROPOSAL TO ALIGN NWS PACIFIC HIGH SEAS FORECASTS WITH METAREA XII: HTTPS://OCEAN.WEATHER.GOV/HIGHSEASPACIFICPROPOSAL/ (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 0000 UTC DEC 05. 24 HOUR FORECAST VALID 0000 UTC DEC 06. 48 HOUR FORECAST VALID 0000 UTC DEC 07. .WARNINGS. ...STORM WARNING... .LOW W OF AREA 57N153E 948 MB MOVING W 10 KT. FRONT EXTENDS FROM 55N170E TO 50N174E TO 45N176E TO 35N170E TO 30N163E. WITHIN 180 NM NE OF FRONT N OF 52N...ALSO N OF 50N W OF 165E WINDS 35 TO 50 KT. SEAS 7 TO 12.5 M. ELSEWHERE N OF 50N W OF 179E...AND WITHIN 120 NM E OF FRONT...ALSO FROM 46N TO 50N W OF 165E...AND FROM 39N TO 46N W OF 170E WINDS 25 TO 40 KT. SEAS 4 TO 8 M. .24 HOUR FORECAST LOW NW OF AREA 58N144E 986 MB. CONDITIONS WELL W OF AREA. ...STORM WARNING... .LOW 51N145W 1011 MB MOVING E 25 KT. FROM 43N TO 50N BETWEEN 135W AND 147W WINDS 20 TO 30 KT. SEAS TO 4 M. .18 HOUR FORECAST LOW 53N137W 996 MB. FROM 48N TO 52N BETWEEN 133W AND 138W WINDS 35 TO 50 KT. SEAS 4 TO 6.5 M. .24 HOUR FORECAST LOW 51N130W 998 MB. WITHIN 240 NM W QUADRANT...ALSO FROM 46N TO 51N BETWEEN 127W AND 136W WINDS 30 TO 45 KT. SEAS 4 TO 7 M. .48 HOUR FORECAST LOW DISSIPATED INLAND WITH CONDITIONS DIMINISHED. ...STORM WARNING... .LOW 51N152W 1007 MB MOVING NE 15 KT. FROM 45N TO 48N BETWEEN 147W AND 153W WINDS 25 TO 35 KT. SEAS TO 4 M. .24 HOUR FORECAST LOW 56N147W 991 MB. FROM 46N TO 56N BETWEEN 140W AND 160W WINDS 25 TO 35 KT. SEAS TO 3.5 M. .48 HOUR FORECAST LOW 56N153W 976 MB. BETWEEN 300 NM AND 480 NM NW QUADRANT WINDS 35 TO 50 KT. SEAS 4 TO 6 M. ELSEWHERE WITHIN 780 NM SE...600 NM SW AND 600 NM NW QUADRANTS...ALSO N OF 58N BETWEEN 145W AND 155W WINDS 30 TO 45 KT. SEAS 3 TO 5.5 M. ...STORM WARNING... .24 HOUR FORECAST LOW 45N166E 985 MB. WITHIN 120 NM OF CENTER WINDS 40 TO 55 KT. SEAS 4 TO 7 M. ELSEWHERE FROM 37N TO 45N W OF 173E...AND FROM 45N TO 47N BETWEEN 166E AND 172E WINDS 30 TO 45 KT. SEAS 4 TO 6.5 M. ALSO FROM 32N TO 40N W OF 172E WINDS 20 TO 30 KT. SEAS 3.5 TO 4.5 M. .48 HOUR FORECAST LOW 47N172E 985 MB. FROM 44N TO 47N BETWEEN 168E AND 173E WINDS 35 TO 50 KT. SEAS 5.5 TO 8 M. ELSEWHERE FROM 38N TO 50N BETWEEN 163E AND 178E...AND WITHIN 300 NM NE QUADRANT WINDS 25 TO 40 KT. SEAS 3 TO 6 M. ...STORM WARNING... .24 HOUR FORECAST NEW LOW 48N169W 998 MB. WITHIN AN AREA BOUNDED BY 50N180W...44N175W...42N167W...45N164W...48N167W...51N180W...50N18 0W WINDS 30 TO 45 KT. SEAS 3 TO 5.5 M. .36 HOUR FORECAST LOW 48N161W 994 MB. WITHIN 180 NM S SEMICIRCLE WINDS 35 TO 50 KT. SEAS 4 TO 6 M .48 HOUR FORECAST LOW ABSORBED. CONDITIONS DESCRIBED ABOVE WITH LOW 56N153W. ...GALE WARNING... .LOW 54N162W 1005 MB MOVING SW 10 KT. FROM 55N TO 60N BETWEEN 158W AND 173W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. .24 HOUR FORECAST LOW 53N167W 1004 MB. FROM 57N TO 60N BETWEEN 161W AND 165W...ALSO N OF 57N BETWEEN 156W AND 160W WINDS 25 TO 35 KT. SEAS TO 3 M. .48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS DIMINISHED. ...GALE WARNING... .24 HOUR FORECAST LOW 37N178E 1015 MB. WITHIN 300 NM E OF A LINE FROM 38N180W TO 31N168E WINDS 20 TO 30 KT. SEAS TO 4 M. .48 HOUR FORECAST LOW 43N174W 994 MB. WITHIN AND AREA BOUNDED BY 47N176E...39N176E...35N177W...38N165W...42N165W...45N172W...47N17 6E WINDS 25 TO 40 KT. SEAS 3 TO 5 M. ...HEAVY FREEZING SPRAY WARNING... .LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 58N162W TO 61N177W. .24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 57N156W TO 61N176W. .48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 57N BETWEEN 156W AND 166W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 60N145W TO 59N152W TO 55N156W TO 55N165W TO 61N176W. .SYNOPSIS AND FORECAST. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 48N TO 53N BETWEEN 135W AND 154W. .24 HOUR FORECAST DENSE FOG FROM 50N TO 52N BETWEEN 174W AND 178W...AND FROM 45N TO 48N BETWEEN 164E AND 168E. .48 HOUR FORECAST DENSE FOG BETWEEN 47N AND 49N FROM 168E AND 172E. .FORECASTER SHAW. 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 0000 UTC FRI DEC 5. 24 HOUR FORECAST VALID 0000 UTC SAT DEC 6. 48 HOUR FORECAST VALID 0000 UTC SUN DEC 7. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .18 HOUR FORECAST WITHIN 27N134W TO 28N140W TO 21N140W TO 24N135W TO 25N132W TO 27N134W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN MIXED NE WIND WAVES AND NW SWELL. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST WITHIN 23N134W TO 26N136W TO 26N140W TO 08N140W TO 19N137W TO 23N134W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN IN MIXED SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. CONVECTION VALID AT 0300 UTC FRI DEC 5... .TROUGH FROM 25N112W THROUGH 1014 MB LOW PRES NEAR 22N117W TO 18N120W...SCATTERED MODERATE WITHIN 240 NM E OF TROUGH AND LOW. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 08.5N78.5W TO 08N96.5W. ITCZ FROM 08N96.5W TO 09N120W TO 05.5N135W TO BEYOND 06.5N140W. SCATTERED MODERATE FROM 06N TO 08N BETWEEN 85W AND 90W...AND FROM 06.5N TO 11N BETWEEN 133W AND 138W. $$ .FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.