High Seas Forecast
Issued by NWS
Issued by NWS
942 FZPS40 PHFO 232312 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 2330 UTC MON SEP 23 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE HIGHER THAN 10-MINUTE AVERAGE WINDS. 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 OFFSHORE AND HIGH SEAS AREAS ONLY. TO LEARN MORE PLEASE VISIT HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP SECURITE SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E SYNOPSIS VALID 1800 UTC SEP 23 2024. 24 HOUR FORECAST VALID 1800 UTC SEP 24 2024. 48 HOUR FORECAST VALID 1800 UTC SEP 25 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .24 HOUR FORECAST NEW LOW NEAR 24S149 1013 MB. TROUGH FROM LOW TO 22S142W. ASSOCIATED WINDS INCLUDED BELOW. .48 HOUR FORECAST LOW JUST S OF FORECAST AREA NEAR 26N147W 1015 MB. TROUGH FROM LOW TO 24S136W. ASSOCIATED WINDS INCLUDED BELOW. .COLD FRONT FROM 25S126W TO 24S132W MOVING ESE 20 KT. .24 HOUR FORECAST FRONT FROM 24S120W TO 22S124W. .48 HOUR FORECAST FRONT MOVED E OF FORECAST AREA. .TROUGH FROM 19S163W TO 22S164W TO 25S164W NEARLY STATIONARY. .24 HOUR FORECAST DEVELOPING COLD FRONT FROM 25S162W TO 22S164W TO 20S168W. .48 HOUR FORECAST FRONT FROM 25S156W TO 22S160W TO 20S166W. .TROUGH FROM 08S174W TO 12S174E TO 11S160E MOVING NNW SLOWLY. ASSOCIATED WINDS INCLUDED BELOW. ISOLATED MODERATE TSTMS WITHIN 240 NM N OF TROUGH AXIS AND 480 NM S OF TROUGH AXIS. .24 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED IMMEDIATELY BELOW. ASSOCIATED WINDS INCLUDED BELOW. .TROUGH FROM 07S164W TO 13S158W TO 19S150W MOVING NW 10 KT. ISOLATED MODERATE TSTMS N OF 13S WITHIN 240 NM WITHIN E OF TROUGH AXIS. .24 HOUR FORECAST TROUGH FROM 09S168E TO 06S178W TO 08S161W TO 13S149W. ASSOCIATED WINDS INCLUDED BELOW. .48 HOUR FORECAST TROUGH FROM 06S178E TO 11S169W TO 14S154W. .WINDS NE TO SE 20 TO 25 KT FROM 11S TO 19S BETWEEN 160E AND 165E... AND ALSO FROM 19S TO 23S BETWEEN 150W AND 140W. .24 HOUR FORECAST WINDS E TO SE 20 TO 30 KT FROM 09S TO 23S BETWEEN 160E AND 179E. ALSO WINDS N TO SE 20 TO 25 KT WITHIN AN AREA BOUND BY 11S130W 11S120W 19S120W 19S135W 25S140W 25S150W 21S145W 15S135W 11S130W. .48 HOUR FORECAST WINDS E TO SE 20 TO 30 KT FROM 10S TO 20S BETWEEN 160E AND 172W. ALSO WINDS N TO E 20 TO 25 KT FROM 23S TO 25S BETWEEN 136W AND 126W. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .48 HOUR FORECAST SEAS 8 TO 10 FT FROM 19S TO 25S BETWEEN 167E AND 177W. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. $$ .FORECASTER BEDAL. HONOLULU HI.