FZPN01 KWBC 180349 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 0430 UTC THU APR 18 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC APR 18. 24 HOUR FORECAST VALID 0000 UTC APR 19. 48 HOUR FORECAST VALID 0000 UTC APR 20. .WARNINGS. ...STORM WARNING... .LOW 54N160W 991 MB MOVING SE 10 KT. WITHIN 480 NM W AND SW QUADRANTS...AND WITHIN 300 NM NE OF A LINE FROM 59N162W TO 57N154W TO 53N146W TO 48N143W WINDS 35 TO 50 KT. SEAS 12 TO 24 FT. ELSEWHERE WITHIN 600 NM N...840 NM E...900 NM S...AND 660 NM W QUADRANTS AND FROM 37N TO 49N BETWEEN 137W AND 145W WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. .24 HOUR FORECAST LOW 50N159W 995 MB. WITHIN 180 NM NE OF A LINE FROM 58N155W TO 56N149W TO 53N144W WINDS 35 TO 45 KT. SEAS 13 TO 22 FT. ELSEWHERE WITHIN 480 NM SE QUADRANT...WITHIN 300 NM NE OF A LINE FROM 57N159W TO 54N147W TO 49N141W TO 43N140W...AND FROM 41N TO 59N BETWEEN 159W AND 171W WINDS 25 TO 40 KT. SEAS 10 TO 18 FT. .48 HOUR FORECAST LOW 52N154W 996 MB. WITHIN 240 NM N...300 NM E...AND 600 NM S QUADRANTS...WITHIN 240 NM NE OF A LINE FROM 59N161W TO 57N152W TO 55N143W TO 50N139W...AND WITHIN 360 NM NE OF A LINE FROM 45N160W TO 52N171W TO 58N176W WINDS 25 TO 35 KT. SEAS 10 TO 17 FT. ...GALE WARNING... .LOW W OF AREA NEAR 42N158E 999 MB MOVING NW 10 KT. WITHIN 660 NM NE AND 480 NM SE QUADRANTS...AND FROM 32N TO 42N BETWEEN 175E AND 170E WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. .24 HOUR FORECAST LOW WELL W OF AREA. FROM 37N TO 50N BETWEEN 179E AND 174E WINDS TO 25 KT. SEAS TO 10 FT. .48 HOUR FORECAST NEW LOW 45N177W 1011 MB. FROM 34N TO 47N BETWEEN 171W AND 178W WINDS TO 25 KT. SEAS TO 12 FT. ...GALE WARNING... .FROM 36N TO 45N BETWEEN 123W AND 128W AREA OF N WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. .24 HOUR FORECAST FROM 37N TO 47N BETWEEN 124W AND 128W AREA OF N WINDS TO 25 KT. SEAS TO 9 FT. .48 HOUR FORECAST CONDITIONS DIMINISHED. ...GALE WARNING... .48 HOUR FORECAST LOW 37N160E 1004 MB. FROM 30N TO 42N W OF 165E WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ...HEAVY FREEZING SPRAY WARNING... .MODERATE TO HEAVY FREEZING SPRAY N OF 57N BETWEEN 166W AND 176W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 55N BETWEEN 165W AND 177E. .24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 57N BETWEEN 165W AND 174W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 55N164W TO 55N174W TO 59N180W. .48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 57N BETWEEN 167W AND 178W. .SYNOPSIS AND FORECAST. .48 HOUR FORECAST NEW LOW 48N136W 1011 MB. WITHIN 480 NM S QUADRANT WINDS TO 25 KT. SEAS TO 9 FT. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 65N BETWEEN 156W AND 170W...AND FROM 40N TO 49N W OF 175E. .24 HOUR FORECAST DENSE FOG FROM 47N TO 64N BETWEEN 156W AND 168W...FROM 54N TO 59N W OF 175W...AND FROM 42N TO 52N W OF 177E. .48 HOUR FORECAST DENSE FOG FROM 52N TO 64N BETWEEN 161W AND 173W...AND FROM 40N TO 50N W OF 171W. .FORECASTER NOLT. 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 THU APR 18. 24 HOUR FORECAST VALID 0000 UTC FRI APR 19. 48 HOUR FORECAST VALID 0000 UTC SAT APR 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 10N115W TO 18N134W TO 15N140W TO 07N140W TO 03N126W TO 05N116W TO 10N115W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NW AND SE SWELL. .24 HOUR FORECAST WITHIN 13N134W TO 15N140W TO 07N140W TO 10N134W TO 13N134W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT PRIMARILY IN E SWELL. .48 HOUR FORECAST LITTLE CHANGE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 0300 UTC THU APR 18... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... TROUGH FROM NEAR 08N78W TO 06N95W. ITCZ FROM 06N95W TO 06N115W TO 04N125W TO 07N140W. SCATTERED MODERATE FROM 05N TO 09N BETWEEN 112W AND 119W...FROM 03N TO 05N BETWEEN 123W AND 127W...AND FROM 09N TO 11N BETWEEN 135W AND 137W. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.