High Seas Forecast
Issued by NWS
Issued by NWS
389 FZPS40 PHFO 032252 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 2330 UTC WED SEP 03 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. SECURITE SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E SYNOPSIS VALID 1800 UTC SEP 03 2025. 24 HOUR FORECAST VALID 1800 UTC SEP 04 2025. 48 HOUR FORECAST VALID 1800 UTC SEP 05 2025. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WEAK FRONT 25S126W 22S131W MOVING NE SLOWLY. .24 HOUR FORECAST FRONT WEAKENED TO TROUGH 23S126W 20S138W 18S143W. .48 HOUR FORECAST TROUGH 22S138W 14S152W. .TROUGH 25S166E 20S167E 16S166E NEARLY STATIONARY. ISOLATED MODERATE TSTMS FROM 23S TO 20S BETWEEN 168E AND 174E. .24 HOUR FORECAST TROUGH 25S165E 20S166E 16S163E. .48 HOUR FORECAST TROUGH 25S168E 19S165E. .TROUGH 18S158W 12S169W 05S177W MOVING W 10 KT. ISOLATED MODERATE TSTMS FROM 11S TO 05S BETWEEN 179E AND 164W. .24 HOUR FORECAST TROUGH 16S166W 11S174W 05S177E. .48 HOUR FORECAST TROUGH 16S165W 10S177W 06S170E 03S163E. .TROUGH 11S170E 07S160E MOVING WSW 10 KT. ISOLATED MODERATE TSTMS WITHIN 180 NM OF TROUGH. .24 HOUR FORECAST TROUGH 13S160E 09S160E. .48 HOUR FORECAST TROUGH MOVED W OF AREA. .24 HOUR FORECAST NEW FRONT 25S151W 22S159W 21S170W. .48 HOUR FORECAST FRONT 25S126W 21S129W. .WINDS 20 TO 25 KT FROM 21S TO 10S BETWEEN 170E AND 172W. .24 HOUR FORECAST WINDS 20 TO 25 KT FROM 21S TO 06S BETWEEN 164E AND 170W. .48 HOUR FORECAST WINDS 20 TO 30 KT IN AREA BOUNDED BY 24S171W 13S160E 04S166E 17S168W 09S156W 23S164W 24S171W. .WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA. .SEAS 4 TO 4.5 M S OF A LINE 25S137W 18S151W 18S155W 22S155W 25S154W. SEAS 2.5 TO 4 M ELSEWHERE S OF LINE 25S168E 14S170E 09S160W 25S132W. .24 HOUR FORECAST SEAS 2.5 TO 4 M S OF A LINE 25S167E 10S167E 06S179E 14S170W 05S158W 08S146W 17S150W 13S138W 17S129W 25S122W. .48 HOUR FORECAST SEAS 2.5 TO 4 M S OF A LINE 25S177E 11S161E 05S165E 14S170W 05S159W 09S146W 16S154W 23S132W 12S138W 04S130W 07S120W. .SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA. $$ .FORECASTER TROTTER. HONOLULU HI.