High Seas Forecast
Issued by NWS
Issued by NWS
992 FZPN02 KWBC 240525 HSFEPI HIGH SEAS FORECAST FOR METAREA XII NWS OCEAN PREDICTION CENTER WASHINGTON DC 0545 UTC TUE SEP 24 2024 CCODE/2:31:12:11:00/AOW+POR+AOE/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC SEP 24. 24 HOUR FORECAST VALID 0000 UTC SEP 25. 48 HOUR FORECAST VALID 0000 UTC SEP 26. .WARNINGS. ...STORM WARNING... .LOW 45N168E 1003 MB MOVING E 30 KT. FROM 35N TO 48N W OF 175W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. .24 HOUR FORECAST LOW 46N174W 1000 MB. FROM 38N TO 50N BETWEEN 159W AND 173E WINDS 25 TO 40 KT. SEAS 8 TO 16 FT. ELSEWHERE WITHIN 900 NM W QUADRANT WINDS LESS THAN 25 KT. SEAS TO 12 FT. .48 HOUR FORECAST LOW 48N151W 988 MB. BETWEEN 180 AND 480 NM SW QUADRANT WINDS 35 TO 50 KT. SEAS 12 TO 20 FT. ELSEWHERE FROM 37N TO 51N BETWEEN 138W AND 171W WINDS 25 TO 40 KT. SEAS 8 TO 18 FT. ALSO FROM 37N TO 47N BETWEEN 171W AND 175E WINDS LESS THAN 25 KT. SEAS TO 12 FT. ...GALE WARNING... .LOW 58N148W 977 MB MOVING N 05 KT. WITHIN 240 NM N...840 NM E...W....AND NW...AND 1080 NM S QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 22 FT...HIGHEST NEAR 54N144W. ELSEWHERE N OF A LINE FROM 30N166W TO 48N125W WINDS LESS THAN 25 KT. SEAS 8 TO 14 FT. .24 HOUR FORECAST LOW 59N148W 977 MB. WITHIN 600 NM SW QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. ELSEWHERE NE OF A LINE FROM 39N140W TO 54N166W TO 64N171W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. ALSO N OF 33N BETWEEN 125W AND 161W WINDS LESS THAN 25 KT. SEAS TO 11 FT. .48 HOUR FORECAST LOW 58N150W 992 MB. FROM 51N TO 61N BETWEEN 147W AND 169W WINDS 20 TO 30 KT. SEAS TO 9 FT. .SYNOPSIS AND FORECAST. .FROM 30N TO 43N BETWEEN 124W AND 131W AREA OF N WINDS 20 TO 30 KT. SEAS TO 10 FT. .24 HOUR FORECAST CONDITIONS DESCRIBED IN SECOND WARNING ABOVE. .48 HOUR FORECAST EXCEPT WHERE DESCRIBED ABOVE...FROM 31N TO 55N E OF 144W WINDS LESS THAN 25 KT. SEAS TO 11 FT. .24 HOUR FORECAST FROM 36N TO 42N W OF 173E AREA OF NE TO E WINDS 20 TO 30 KT. SEAS TO 9 FT. .48 HOUR FORECAST FROM 35N TO 41N W OF 175E AREA OF NE TO E WINDS 20 TO 30 KT. SEAS TO 11 FT. .48 HOUR FORECAST LOW NW OF AREA 61N175E 997 MB. N OF 48N W OF 174W WINDS 20 TO 30 KT. SEAS TO 9 FT. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 46N BETWEEN 179E AND 166E AND N OF 48N E OF 126W. .24 HOUR FORECAST DENSE FOG FROM 45N TO 47N BETWEEN 165W AND 175W AND FROM 34N TO 50N E OF 128W. .48 HOUR FORECAST DENSE FOG FROM 39N TO 42N E OF 126W. .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 0000 UTC TUE SEP 24. 24 HOUR FORECAST VALID 0000 UTC WED SEP 25. 48 HOUR FORECAST VALID 0000 UTC THU SEP 26. .WARNINGS. ...HURRICANE WARNING... .HURRICANE JOHN NEAR 16.3N 98.8W 959 MB AT 0300 UTC SEP 24 MOVING N OR 350 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 105 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM OF CENTER EXCEPT 30 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 10 NM N SEMICIRCLE...90 NM SE QUADRANT AND 60 NM SW QUADRANT WITH SEAS TO 19 FT. ELSEWHERE WITHIN 240 NM SE AND 300 NM SW QUADRANTS OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO 14 FT. FROM 09N TO 12N BETWEEN 95W AND 99W AND FROM 09N TO 11N BETWEEN 99W AND 112W SW TO W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. FROM 06N TO 09N BETWEEN 95W AND 101W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW TO N SWELL. .12 HOUR FORECAST TROPICAL STORM JOHN INLAND NEAR 17.0N 98.9W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. OVER FORECAST WATERS FROM 09N TO 16N BETWEEN 95W AND 102W AND FROM 09N TO 15N BETWEEN 102W AND 112W SW TO W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT... EXCEPT 10 TO 14 FT FROM 11N TO 14N BETWEEN 96W AND 103W. .24 HOUR FORECAST POST-TROPICAL JOHN WELL INLAND NEAR 17.5N 99.1W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER FORECAST WATERS FROM 09N TO 16N BETWEEN 95W AND 102W SW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT...EXCEPT 11 TO 14 FT FROM 11N TO 16N BETWEEN 97W AND 102W. FROM 08N TO 12N BETWEEN 102W AND 118W SW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. FROM 07N TO 09N BETWEEN 88W AND 102W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW TO N SWELL. .36 HOUR FORECAST...DISSIPATED. FROM 11N TO 15N BETWEEN 96W AND 102W SW WINDS 20 TO 30 KT. SEAS 11 TO 17 FT. LITTLE CHANGE ELSEWHERE. .48 HOUR FORECAST LITTLE CHANGE. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 0315 UTC TUE SEP 24... .HURRICANE JOHN...NUMEROUS STRONG WITHIN 120 NM E SEMICIRCLE ...90 SW QUADRANT AND 60 NM NW QUADRANT. SIMILAR CONVECTION IS FROM 16N TO 19N BETWEEN 100W AND 104W. NUMEROUS MODERATE ISOLATED STRONG FROM 12N TO 15N BETWEEN 96W AND 102W. .SCATTERED TO NUMEROUS MODERATE ISOLATED STRONG FROM 11N TO 14N BETWEEN 88W AND 96W AND FROM 11M TO 18N BETWEEN 104W AND 110W. .SCATTERED MODERATE FROM 06N TO 10N BETWEEN 80W AND 87W AND FROM 06N TO 08N BETWEEN 88W AND 92W AND WITHIN 60 NM OF 17N106W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH AXIS EXTENDS FROM 14N110W TO 14N123W TO 10N129W TO 12N140W. SCATTERED MODERATE WITHIN 120 NM S OF THE TROUGH BETWEEN 110W AND 113W. .FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER. NATIONAL WEATHER SERVICE HONOLULU HI NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E SYNOPSIS VALID 0000 UTC SEP 24 2024. 24 HOUR FORECAST VALID 0000 UTC SEP 25 2024. 48 HOUR FORECAST VALID 0000 UTC SEP 26 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .LOW NEAR 10N169W 1007 MB NEARLY STATIONARY. TROUGHS FROM LOW TO 12N164W TO 11N159W AND FROM LOW TO 08N173W TO 07N178W. WINDS 20 TO 30 KT AND SEAS 8 TO 9 FT WITHIN 240 NM EITHER SIDE OF TROUGH AXIS BETWEEN 173W AND 164W. NUMEROUS MODERATE TO STRONG TSMTS WITHIN 180 NM EITHER SIDE OF TROUGH AXIS. ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 360 NM EITHER SIDE OF TROUGH AXIS. .24 HOUR FORECAST LOW NEAR 12N171W 1008 MB. TROUGHS FROM LOW TO 13N167W TO 17N165W AND FROM LOW TO 09N178W TO 09N175E. WINDS 20 TO 30 KT WITHIN 300 NM E AND SE OF TROUGH BETWEEN 175W AND 165W. WINDS 20 TO 25 KT WITHIN 180 NM N AND NW OF E OF 170W. SEAS 8 TO 11 FT WITHIN 240 NM EITHER SIDE OF TROUGH AXIS .48 HOUR FORECAST LOW NEAR 15N173W 1010 MB. TROUGHS FROM LOW TO 20N167W AND FROM LOW TO 14N176W TO 10N175E. WINDS 20 TO 25 KT WITHIN 240 NM S OF TROUGH AXIS E OF 173W. SEAS 8 TO 9 FT FROM 20N TO 15N BETWEEN 171W AND 166W. .LOW NEAR 11N147W 1008 MB MOVING WNW SLOWLY. TROUGHS FROM LOW TO 12N141W AND FROM LOW TO 07N154W. WINDS 20 TO 25 KT WITHIN 180 NM OF TROUGH E OF 147W. ISOLATED MODERATE TSTMS WITHIN 180 NM EITHER SIDE OF TROUGH AXIS. .24 HOUR FORECAST LOW NEAR 12N149W 1010 MB. TROUGHS FROM LOW TO 14N143W AND FROM LOW TO 10N156W. ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS. .48 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 09N154W TO 14N144W. .TROUGH FROM 10N162E TO 14N165E TO 20N167E NEARLY STATIONARY. SCATTERED MODERATE TSTMS FROM 20N TO 14N BETWEEN 160E AND 171E. .24 HOUR FORECAST TROUGH DISSIPATED. .TROUGH FROM 23N163E TO 29N165E MOVING W 15 KT. SCATTERED MODERATE TSTMS FROM 30N TO 23N BETWEEN 160E AND 173E. .24 HOUR FORECAST TROUGH FROM 23N160E TO 29N160E. .48 HOUR FORECAST TROUGH W OF FORECAST AREA. .TROUGH FROM 23N161W TO 28N158W MOVING NW 10 KT. ISOLATED MODERATE TSTMS WITHIN 90 NM EITHER SIDE OF TROUGH AXIS. .24 HOUR FORECAST TROUGH DISSIPATED. .OTHERWISE WINDS NE TO SE 20 TO 25 KT WITHIN AN AREA BOUND BY 26N165E 26N170W 16N170W 16N178E 23N164E 26N165E. .24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 28N TO 22N BETWEEN 178W AND 168W. .48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS...EXCEPT HIGHER WHERE NOTED ABOVE. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .OTHERWISE SEAS 8 TO 9 FT OVER FORECAST WATERS NW OF A LINE FROM 30N163W TO 27N171W. .24 HOUR FORECAST SEAS 8 TO 9 FT OVER FORECAST WATERS N OF A LINE FROM 30N146W TO 24N154W TO 24N170W. .48 HOUR FORECAST SEAS 8 TO 9 FT OVER FORECAST WATERS NW OF A LINE FROM 25N137W TO 21N147W. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. .OTHERWISE NUMEROUS MODERATE TSTMS FROM 20N TO 14N BETWEEN 160E AND 166E. ISOLATED MODERATE TSTMS ELSEWHERE FROM 22M TO 12N BETWEEN 160E AND 174E. .OTHERWISE ISOLATED MODERATE TSTMS FROM 07N TO 01N BETWEEN 160E AND 170E. $$ .FORECASTER BEDAL. HONOLULU HI.