High Seas Forecast
Issued by NWS
Issued by NWS
607 FZPN01 KWBC 201608 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 1630 UTC FRI SEP 20 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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). FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM). THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY. TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE) HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH PACIFIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 12 FEET OR GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH, AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO PRESERVE CONTINUITY WHERE APPROPRIATE. 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 SEP 20. 24 HOUR FORECAST VALID 1200 UTC SEP 21. 48 HOUR FORECAST VALID 1200 UTC SEP 22. .WARNINGS. ...STORM WARNING... .06 HOUR FORECAST LOW 47N156E 984 MB. FROM 35N TO 48N W OF 166E WINDS 25 TO 35 KT. SEAS TO 9 FT. .24 HOUR FORECAST LOW 49N169E 972 MB. WITHIN 360 NM S AND SW QUADRANTS WINDS 40 TO 55 KT. SEAS 15 TO 31 FT. ELSEWHERE FROM 35N TO 54N W OF 173W WINDS 25 TO 40 KT. SEAS 8 TO 22 FT...HIGHEST FROM 42N TO 49N W OF 171E. 48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 52N169W 972 MB. WITHIN 480 NM S AND SW QUADRANTS WINDS 40 TO 50 KT. SEAS 16 TO 29 FT. ELSEWHERE FROM 37N TO 63N BETWEEN 145W AND 170E WINDS 25 TO 40 KT. SEAS 8 TO 16 FT...EXCEPT FROM 40N TO 51N BETWEEN 155W AND 173E SEAS 15 TO 25 FT. ALSO N OF 34N W OF 170E WINDS LESS THAN 25 KT. SEAS 8 TO 14 FT. ...GALE WARNING... .COMPLEX LOW WITH FIRST CENTER 53N155W 997 MB MOVING E 15 KT AND SECOND CENTER 54N150W 998 MB MOVING NE 15 KT. BETWEEN A LINE FROM 42N162W TO 49N137W AND 57N WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. .12 HOUR FORECAST COMBINED LOW 56N143W 992 MB. WITHIN 120 NM NE OF FRONT TO EXTEND FROM 57N141W TO 54N134W WINDS 30 TO 45 KT. SEAS 8 TO 15 FT. .24 HOUR FORECAST LOW 57N140W 993 MB. WITHIN 150 NM OF LOW CENTER...NOT INCLUDING E QUADRANT...WINDS 25 TO 40 KT. SEAS 8 TO 15 FT. ELSEWHERE N OF A LINE FROM 46N143W TO 50N127W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. .48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS DIMINISHED. ...GALE WARNING... .LOW 51N178E 989 MB MOVING NE 10 KT. N OF 45N BETWEEN 173W AND 170E WINDS 25 TO 40 KT. SEAS 8 TO 16 FT. ELSEWHERE WITHIN 780 NM SW QUADRANT WINDS LESS THAN 25 KT. SEAS TO 10 FT. .24 HOUR FORECAST LOW 53N177W 995 MB. WITHIN 480 NM SE QUADRANT AND FROM 54N TO 60N W OF 165W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. .48 HOUR FORECAST LOW ABSORBED BY LOW 52N169W DESCRIBED ABOVE. ...GALE WARNING... .LOW 44N169W 1010 MB MOVING NE 35 KT. FRONT EXTENDS FROM 46N162W TO LOW CENTER TO 38N180W. WITHIN 300 NM SE OF FRONT WINDS 20 TO 30 KT. SEAS TO 12 FT. .24 HOUR FORECAST LOW 50N150W 1007 MB. WITHIN 420 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 12 FT. ELSEWHERE WITHIN 360 NM NW OF A LINE FROM 40N163W TO 46N143W WINDS TO 25 KT. SEAS TO 11 FT. .48 HOUR FORECAST LOW 55N131W 1005 MB. WITHIN 240 NM S AND 480 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 12 FT. ELSEWHERE WITHIN 660 NM SW QUADRANT WINDS LESS THAN 25 KT. SEAS TO 9 FT. ...GALE WARNING... .FROM 35N TO 49N E OF 130W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 11 FT. .24 HOUR FORECAST FROM 34N TO 44N BETWEEN 122W AND 130W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. .36 HOUR FORECAST FROM 35N TO 44N BETWEEN 124W AND 129W AREA OF N WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. .48 HOUR FORECAST FROM 32N TO 43N BETWEEN 124W AND 129W AREA OF N WINDS 20 TO 30 KT. SEAS TO 11 FT. .SYNOPSIS AND FORECAST. .48 HOUR FORECAST FROM 36N TO 41N W OF 163E WINDS TO 25 KT. SEAS TO 8 FT. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM NW OF A LINE FROM 42N169W TO 49N147W AND FROM 53N TO 55N BETWEEN 147W AND 154W. .24 HOUR FORECAST DENSE FOG FROM 45N TO 51N BETWEEN 141W AND 157W AND WITHIN 90 NM OF 45N179W. .48 HOUR FORECAST DENSE FOG FROM 45N TO 49N BETWEEN 146W AND 158W. .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 1200 UTC FRI SEP 20. 24 HOUR FORECAST VALID 1200 UTC SAT SEP 21. 48 HOUR FORECAST VALID 1200 UTC SUN SEP 22. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 12N110W TO 13N112W TO 13N115W TO 11N120W TO 10N118W TO 10N111W TO 12N110W SW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. .24 HOUR FORECAST WITHIN 14N114W TO 14N115W TO 11N118W TO 10N117W TO 09N116W TO 12N113W TO 14N114W SW TO W WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. .48 HOUR FORECAST CONDITIONS MERGED WITH AREA BELOW. .06 HOUR FORECAST WITHIN 13N104W TO 13N105W TO 13N107W TO 12N107W TO 11N106W TO 12N104W TO 13N104W SW TO W WINDS 20 TO 25 KT. SEAS 8 FT. .24 HOUR FORECAST LOW PRES NEAR 13N114.5W 1008 MB. WITHIN 16N104W TO 15N109W TO 13N110W TO 12N107W TO 12N105W TO 14N104W TO 16N104W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .48 HOUR FORECAST LOW PRES NEAR 14.5N114W 1006 MB. WITHIN 15N111W TO 17N116W TO 14N116W TO 10N115W TO 10N112W TO 12N109W TO 15N111W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. .36 HOUR FORECAST WITHIN 10N138W TO 11N139W TO 11N140W TO 08N140W TO 08N139W TO 09N138W TO 10N138W S WINDS 20 TO 25 KT. SEAS 8 FT. .48 HOUR FORECAST WITHIN 11.5N139W TO 12N139.5W TO 11.5N140W TO 09N140W TO 09.5N139W TO 11.5N139W S TO SW WINDS 20 TO 25 KT. SEAS 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 1530 UTC FRI SEP 20... .TROPICAL WAVE WITH AXIS NEAR 88W...SCATTERED MODERATE TO STRONG S OF 10N E OF 92W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 11N86W TO 10N125W. ITCZ FROM 10N125W TO 10N140W. SCATTERED MODERATE TO ISOLATED STRONG FROM 10N TO 17N BETWEEN 92W AND 121W...AND FROM 05N TO 13N AND W OF 126W. .FORECASTER ERA. NATIONAL HURRICANE CENTER. $$