High Seas Forecast
Issued by NWS
Issued by NWS
210 FZPN01 KWBC 202134 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 2230 UTC FRI SEP 20 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC SEP 20. 24 HOUR FORECAST VALID 1800 UTC SEP 21. 48 HOUR FORECAST VALID 1800 UTC SEP 22. .WARNINGS. ...STORM WARNING... .LOW 47N157E 984 MB MOVING E 30 KT. FROM 34N TO 48N W OF 165E WINDS 25 TO 40 KT. SEAS TO 12 FT. .06 HOUR FORECAST LOW 48N161E 974 MB. WITHIN 360 NM S QUADRANT WINDS 40 TO 50 KT. SEAS 11 TO 20 FT. .12 HOUR FORECAST LOW 48N165E 972 MB. WITHIN 240 NM S AND 150 NM W QUADRANTS WINDS 45 TO 60 KT. SEAS 16 TO 31 FT. .24 HOUR FORECAST LOW 49N175E 973 MB. WITHIN 360 NM S QUADRANT WINDS 40 TO 50 KT. SEAS 15 TO 30 FT. ELSEWHERE FROM 35N TO 61N W OF 163W WINDS 25 TO 40 KT. SEAS 8 TO 16 FT...EXCEPT FROM 41N TO 50N W OF 180W SEAS 16 TO 28 FT. .48 HOUR FORECAST LOW 55N161W 969 MB. WITHIN 660 NM S QUADRANT AND 300 NM N SEMICIRCLE WINDS 30 TO 45 KT. SEAS 12 TO 25 FT...EXCEPT N SEMICIRCLE SEAS TO 12 FT. ELSEWHERE N OF 37N BETWEEN 139W AND 177E WINDS 25 TO 35 KT. SEAS 8 TO 24 FT... HIGHEST NEAR 46N172W. ALSO N OF 33N BETWEEN 177E AND 164E WINDS LESS THAN 25 KT. SEAS 8 TO 14 FT. ...GALE WARNING... .LOW 55N148W 995 MB MOVING NE 15 KT. N OF A LINE FROM 43N156W TO 50N131W WINDS 25 TO 40 KT. SEAS 8 TO 14 FT. .06 HOUR FORECAST LOW 56N143W 992 MB. WITHIN 90 NM NE OF A LINE FROM 57N141W TO 55N134W WINDS 30 TO 45 KT. SEAS 10 TO 16 FT. .24 HOUR FORECAST LOW 57N137W 997 MB. WITHIN 180 NM OF CENTER AND FROM 50N TO 55N E OF 132W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ALSO WITHIN 420 NM SW SEMICIRCLE WINDS LESS THAN 25 KT. SEAS TO 12 FT. .48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS DIMINISHED. ...GALE WARNING... .LOW 52N180W 990 MB MOVING NE 05 KT. FROM 45N TO 58N BETWEEN 167W AND 172E WINDS 25 TO 40 KT. SEAS 8 TO 18 FT. .24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED ABOVE WITH LOW 49N175E. ...GALE WARNING... .LOW 46N165W 1008 MB MOVING NE 30 KT. FRONT EXTENDS FROM 47N156W TO LOW CENTER TO 38N146W. WITHIN 300 NM SE OF FRONT WINDS 25 TO 35 KT. SEAS TO 12 FT. .24 HOUR FORECAST LOW 51N147W 1006 MB. WITHIN 480 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN 540 NM SW QUADRANT WINDS LESS THAN 25 KT. SEAS TO 10 FT. .48 HOUR FORECAST LOW DISSIPATED. FROM 46N TO 54N E OF 138W WINDS LESS THAN 25 KT. SEAS TO 10 FT. .SYNOPSIS AND FORECAST. .FROM 35N TO 43N BETWEEN 124W AND 130W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 12 FT. .24 HOUR FORECAST FROM 35N TO 44N BETWEEN 124W AND 129W AREA OF N WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. .48 HOUR FORECAST FROM 32N TO 43N BETWEEN 124W AND 130W AREA OF N WINDS 20 TO 30 KT. SEAS TO 10 FT. .48 HOUR FORECAST FROM 38N TO 43N W OF 165E WINDS 20 TO 30 KT. SEAS TO 9 FT. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 49N BETWEEN 152W AND 165W AND WITHIN 90 NM N OF A LINE FROM 55N148W TO 55N144W. .24 HOUR FORECAST CONDITIONS IMPROVED. .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 1800 UTC FRI SEP 20. 24 HOUR FORECAST VALID 1800 UTC SAT SEP 21. 48 HOUR FORECAST VALID 1800 UTC SUN SEP 22. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 13N111W TO 14N112W TO 13N115W TO 12N115W TO 12N112W TO 12N111W TO 13N111W SW TO W WINDS 20 TO 25 KT. SEAS 8 FT. .24 HOUR FORECAST CONDITIONS MERGED WITH AREA BELOW. .WITHIN 12N104W TO 13N104W TO 12N107W TO 11N107W TO 11N105W TO 11N104W TO 12N104W SW TO W WINDS 20 TO 30 KT. SEAS 8 FT. .24 HOUR FORECAST LOW PRES NEAR 14N113W 1008 MB. WITHIN 14N112W TO 14N113W TO 13N115W TO 11N115W TO 11N114W TO 12N111W TO 14N112W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .48 HOUR FORECAST LOW PRES NEAR 14N114W 1006 MB. WITHIN 16N111W TO 16N114W TO 11N116W TO 10N113W TO 12N108W TO 16N111W WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. .24 HOUR FORECAST WITHIN 11N137W TO 12N138W TO 13N139W TO 10N139W TO 09N139W TO 09N138W TO 11N137W SE TO S WINDS 20 TO 25 KT. SEAS 8 FT. .48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .24 HOUR FORECAST WITHIN 08N88W TO 09N89W TO 08N90W TO 07N91W TO 06N89W TO 07N88W TO 08N88W SW TO W WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST WITHIN 08N84W TO 09N84W TO 08N85W TO 07N86W TO 07N85W TO 07N84W TO 08N84W WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 2100 UTC FRI SEP 20... .TROPICAL WAVE WITH AXIS ALONG 89W. SCATTERED MODERATE WITHIN 240 NM ON EITHER SIDE OF THE WAVE AND S OF 10N. .TROPICAL WAVE WITH AXIS ALONG 123W. SCATTERED SHOWERS ALONG THE WAVE AXIS NEAR 11N. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 11N86W TO 1008 MB LOW NEAR 13N98W TO 11N121W. ITCZ FROM 11N125W TO 10N140W. SCATTERED MODERATE TO ISOLATED FROM 07N TO 15N BETWEEN 90W AND 126W...AND FROM 06N TO 14N AND W OF 134W. .FORECASTER ERA. NATIONAL HURRICANE CENTER. $$