FZPN01 KWBC 041648 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 1630 UTC THU DEC 04 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1200 UTC DEC 04. 24 HOUR FORECAST VALID 1200 UTC DEC 05. 48 HOUR FORECAST VALID 1200 UTC DEC 06. .WARNINGS. ...HURRICANE FORCE WIND WARNING... .LOW W OF AREA 51N158E 950 MB MOVING NW 25 KT. WITHIN 360 NM NE AND E OF A FRONT EXTENDING FROM 51N161E TO 45N167E TO 38N167E WINDS 50 TO 70 KT. SEAS 6 TO 12 M. ELSEWHERE N OF 44N W OF 173E...AND WITHIN 180 NM E AND SE OF A FRONT EXTENDING FROM 44N167E TO 38N167E TO 32N163E WINDS 40 TO 50 KT. SEAS 4.5 TO 9 M. OTHERWISE W OF A LINE FROM 58N176E TO 50N177E TO 40N176E TO 30N170E WINDS 25 TO 40 KT. SEAS 3 TO 6 M. .24 HOUR FORECAST LOW NW OF AREA 59N149E 952 MB. FROM 46N TO 54N BETWEEN 160E AND 169E WINDS 25 TO 35 KT. SEAS 5 TO 7 M. .36 HOUR FORECAST LOW AND CONDITIONS WELL NW OF AREA. ...STORM WARNING... .LOW 46N149W 1011 MB MOVING NE 20 KT. WITHIN 360 NM E QUADRANT...AND WITHIN 300 NM E OF A FRONT EXTENDING FROM THE LOW TO 34N153W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. .12 HOUR FORECAST LOW 50N146W 1008 MB. FROM 43N TO 50N BETWEEN 135W AND 150W WINDS 25 TO 35 KT. SEAS TO 4 M. .24 HOUR FORECAST LOW 52N140W 1000 MB. WITHIN 180 NM S AND SW QUADRANTS WINDS 40 TO 50 KT. SEAS 3.5 TO 6.5 M. ELSEWHERE FROM 44N TO 54N BETWEEN 127W AND 147W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. .48 HOUR FORECAST LOW DISSIPATED INLAND. CONDITIONS DESCRIBED BELOW WITH LOW 59N146W. ...STORM WARNING... .24 HOUR FORECAST LOW W OF AREA 40N159E 1005 MB. WITHIN 300 NM E AND SE QUADRANT WINDS 25 TO 40 KT. SEAS 4 TO 6 M. .36 HOUR FORECAST LOW 45N166E 993 MB. FROM 40N TO 46N BETWEEN 165E AND 172E WINDS 35 TO 50 KT. SEAS 3.5 TO 7 M. .48 HOUR FORECAST LOW 47N170E 983 MB. WITHIN 180 NM OF LOW CENTER WINDS 40 TO 50 KT. SEAS 4.5 TO 8.5 M. ELSEWHERE FROM 34N TO 51N BETWEEN 180W AND 160E WINDS 25 TO 40 KT. SEAS 3 TO 6 M. ...GALE WARNING... .LOW 53N163W 1001 MB NEARLY STATIONARY. FROM 54N TO 61N BETWEEN 159W AND 174W WINDS 25 TO 35 KT. SEAS 3 TO 6 M. ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM 62N168W TO 58N158W TO 44N173W TO 56N179W TO 62N168W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M. .24 HOUR FORECAST LOW 53N163W 1005 MB. BETWEEN 300 NM AND 660 NM S...AND BETWEEN 120 NM AND 480 NM N QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3 M. .48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS DIMINISHED. ...GALE WARNING... .LOW 44N156W 1006 MB MOVING NE 25 KT. FROM 40N TO 45N BETWEEN 153W AND 157W WINDS 25 TO 35 KT. SEAS TO 3.5 M. .24 HOUR FORECAST INTENSIFYING LOW 54N153W 1003 MB. FROM 46N TO 54N BETWEEN 147W AND 157W WINDS 20 TO 30 KT. SEAS TO 3.5 M. .36 HOUR FORECAST LOW 57N148W 989 MB. WITHIN 540 NM S QUADRANT WINDS 25 TO 35 KT. SEAS TO 4 M. .48 HOUR FORECAST LOW 59N147W 975 MB. FROM 47N TO 60N BETWEEN 129W AND 150W...AND FROM 50N TO 60N BETWEEN 150W AND 168W WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M. ...GALE WARNING... .24 HOUR FORECAST NEW LOW 47N175E 1008 MB. WITHIN 360 NM S AND 300 NM SW AND W QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 6 M. .48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED BELOW WITH LOW 48N162W. ...GALE WARNING... .24 HOUR FORECAST NEW LOW 52N177E 1002 MB. FROM 50N TO 54N BETWEEN 179W AND 174E WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. .48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED BELOW WITH LOW 48N162W. ...GALE WARNING... .24 HOUR FORECAST NEW LOW 48N178W 1002 MB. FROM 40N TO 49N BETWEEN 172W AND 179E...AND WITHIN 180 NM E AND SE OF A FRONT TO EXTEND FROM 40N178W TO 30N166E WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M. .48 HOUR FORECAST LOW 48N162W 996 MB. WITHIN 180 NM SW SEMICIRCLE WINDS 35 TO 45 KT. SEAS 4 TO 6 M. ELSEWHERE FROM 41N TO 50N BETWEEN 150W AND 172W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M. ...GALE WARNING... .48 HOUR FORECAST NEW LOW 39N180W 1006 MB. WITHIN 360 NM E SEMICIRCLE...AND 540 NM S QUADRANT WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. ...HEAVY FREEZING SPRAY WARNING... .MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 59N164W TO 60N168W TO 64N171W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 59N162W TO 58N168W TO 59N180W. .24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 59N162W TO 60N168W TO 63N172W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 58N158W TO 58N166W TO 61N176W. .48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 58N157W TO 58N164W TO 64N172W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 59N150W TO 56N153W TO 57N165W TO 61N176W. .SYNOPSIS AND FORECAST. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA BOUNDED BY A LINE FROM 52N146W TO 47N132W TO 42N148W TO 47N159W TO 52N146W. .24 HOUR FORECAST DENSE FOG FROM 47N TO 53N BETWEEN 126W AND 132W...WITHIN 90 NM OF 54N152W...AND WITHIN 90 NM EITHER SIDE OF A LINE FROM 48N176W TO 56N173E. .48 HOUR FORECAST DENSE FOG N OF A LINE FROM 56N135W TO 60N143W TO 58N151W...AND FROM 46N TO 51N BETWEEN 164E AND 175E. .FORECASTER HUFFMAN. 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 1200 UTC THU DEC 4. 24 HOUR FORECAST VALID 1200 UTC FRI DEC 5. 48 HOUR FORECAST VALID 1200 UTC SAT DEC 6. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 17N139W TO 18N140W TO 16N140W TO 16N139W TO 16N138W TO 17N139W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .09 HOUR FORECAST CONDITIONS IMPROVE. .36 HOUR FORECAST WITHIN 27N136W TO 28N137W TO 27N138W TO 27N140W TO 25N140W TO 26N137W TO 27N136W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL. .48 HOUR FORECAST WITHIN 27N137W TO 27N140W TO 20N140W TO 20N138W TO 23N135W TO 27N137W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. CONVECTION VALID AT 1500 UTC THU DEC 4... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH AXIS FROM 08N78W TO 09N100W. ITCZ AXIS FROM 09N100W TO 09N125W TO 04N140W. SCATTERED MODERATE FROM 04N TO 09N E OF 86W...FROM 06N TO 12N BETWEEN 99W AND 107W...AND FROM 07N TO 12N AND 118W AND 126W. .FORECASTER KONARIK. NATIONAL HURRICANE CENTER. $$