


High Seas Forecast
Issued by NWS
Issued by NWS
964 FZPN40 PHFO 172232 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 2300 UTC TUE JUN 17 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC JUN 17 2025. 24 HOUR FORECAST VALID 1800 UTC JUN 18 2025. 48 HOUR FORECAST VALID 1800 UTC JUN 19 2025. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER ENTIRE FORECAST AREA. .ITCZ 09N140W 08N150W 05N170W 05N170E 04N160E. ISOLATED MODERATE TSTMS WITHIN 180 NM OF ITCZ. .ISOLATED MODERATE TSTMS N OF 28N BETWEEN 165W AND 170W...AND WITHIN 90 NM OF POINT 20N175W...AND FROM 20N TO 30N E OF 175E. $$ .FORECASTER PECHACEK. HONOLULU HI.