


High Seas Forecast
Issued by NWS
Issued by NWS
995 FZPN40 PHFO 040314 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 0500 UTC WED JUN 04 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E SYNOPSIS VALID 0000 UTC JUN 04 2025. 24 HOUR FORECAST VALID 0000 UTC JUN 05 2025. 48 HOUR FORECAST VALID 0000 UTC JUN 06 2025. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 30N166W 23N173W 17N175W MOVING W 10 KT. ISOLATED MODERATE TSTMS WITHIN 420 NM E OF TROUGH S OF 23N. .24 HOUR FORECAST TROUGH DISSIPATED. .TROUGH 30N175W 27N179W 24N175E MOVING W 10 KT. .24 HOUR FORECAST TROUGH 30N178W 23N174E. .48 HOUR FORECAST TROUGH MERGED WITH TROUGH BELOW. .48 HOUR FORECAST NEW LOW 29N176E 1010 MB. TROUGH 30N173W 26N179W TO LOW TO 25N170E. WINDS 20 TO 25 KT WITHIN 150 NM NW QUADRANT OF LOW. .WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA. .SEAS 2.5 TO 3 M N OF 25N E OF 145W. .24 HOUR FORECAST SEAS 2.5 TO 3 M N OF 24N E OF 146W. .48 HOUR FORECAST SEAS 2.5 TO 3 M N OF 25N E OF 144W. .SEAS 2.5 M OR LOWER REMAINDER OF FORECAST AREA. .ITCZ 09N140W 07N160W 09N175W 04N175E 03N164E. ISOLATED MODERATE TSTMS WITHIN 120 NM OF ITCZ. $$ .FORECASTER WROE. HONOLULU HI.