High Seas Forecast
Issued by NWS
Issued by NWS
009 FZPS40 PHFO 252244 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 2330 UTC WED SEP 25 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 25 2024. 24 HOUR FORECAST VALID 1800 UTC SEP 26 2024. 48 HOUR FORECAST VALID 1800 UTC SEP 27 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .FRONT 25S154W 22S155W 20S157W THENCE TROUGH 16S162W 14S169W 06S179E 04S169E. FRONT AND TROUGH MOVING E 10 KT S OF 10S. TROUGH MOVING W SLOWLY ELSEWHERE. ISOLATED TO SCATTERED MODERATE TSTMS WITHIN 210 NM OF TROUGH W OF 164W. .24 HOUR FORECAST WEAK FRONT 25S149W 23S151W THENCE TROUGH 14S158W 10S169W 08S178E 04S164E. .48 HOUR FORECAST FRONT DISSIPATED. TROUGH 08S169E 04S160E. .FRONT 25S139W 22S140W 20S143W THENCE TROUGH 15S153W 11S159W. FRONT MOVING E SLOWLY AND DISSIPATING. TROUGH MOVING W SLOWLY. ISOLATED MODERATE TSTMS WITHIN 90 NM OF TROUGH W OF 143W. .24 HOUR FORECAST FRONT DISSIPATED. TROUGH MERGED WITH TROUGH DESCRIBED IMMEDIATELY ABOVE. .48 HOUR FORECAST NEW TROUGH 25S127W 24S124W 23S120W. .E TO SE WINDS 20 TO 25 KT W OF LINE 10S175E 19S169E. .24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT W OF LINE 08S169E 18S169E. .48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS. .WINDS 20 KT OR LESS OVER REMAINDER FORECAST AREA. .SEAS 8 TO 9 FT S OF 21S BETWEEN 163E AND 178E. .24 HOUR FORECAST SEAS 8 TO 10 FT S OF 12S BETWEEN 174E AND 177W. .48 HOUR FORECAST SEAS 8 TO 12 FT S OF LINE 25S151W 17S162W 17S172W 25S177W. .SEAS 8 FT OR LESS OVER REMAINDER FORECAST AREA. .ISOLATED TO WIDELY SCATTERED TSTMS FROM 04S TO 18S W BETWEEN 150W AND 169W. $$ .FORECASTER AHUE. HONOLULU HI.