


High Seas Forecast
Issued by NWS
Issued by NWS
334 FZPS40 PHFO 121506 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1730 UTC WED MAR 12 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1200 UTC MAR 12 2025. 24 HOUR FORECAST VALID 1200 UTC MAR 13 2025. 48 HOUR FORECAST VALID 1200 UTC MAR 14 2025. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 25S163W 20S170W 18S175E 17S164E 16S160E NEAR STATIONARY. SCATTERED MODERATE TSTMS WITHIN 180 NM S OF ITCZ...AND 210 NM N OF ITCZ W OF 177E. .24 HOUR FORECAST TROUGH 25S162W 20S175W 17S168E 16S160E. .48 HOUR FORECAST TROUGH 25S163W 19S172W 19S169E 17S160E. .TROUGH 22S120W 14S139W MOVING SW SLOWLY. ISOLATED MODERATE TSTMS WITHIN 60 NM OF TROUGH. .24 HOUR FORECAST TROUGH DISSIPATED. .WINDS 20 KT OR LESS AND SEAS 8 FT OR LESS ENTIRE FORECAST AREA. .ISOLATED MODERATE TSTMS FROM 15S TO 05S BETWEEN 153W AND 177W...FROM 10S TO 05S BETWEEN 178E AND 163E...AND S OF 15S BETWEEN 154W AND 161W. $$ .FORECASTER PIERCE. HONOLULU HI.