


High Seas Forecast
Issued by NWS
Issued by NWS
830 FZPS40 PHFO 161034 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1130 UTC WED JUL 16 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC JUL 16 2025. 24 HOUR FORECAST VALID 0600 UTC JUL 17 2025. 48 HOUR FORECAST VALID 0600 UTC JUL 18 2025. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .FRONT 25S120W 19S130W 16S139W MOVING E SLOWLY. .24 HOUR FORECAST FRONT 24S120W 20S128W 16S140W. .48 HOUR FORECAST FRONT WEAKENED TO TROUGH 22S120W 17S132W. .TROUGH 20S155W 10S173W MOVING SW SLOWLY. ISOLATED MODERATE TSTMS FROM 11S TO 05S BETWEEN 168E AND 178E. .24 HOUR FORECAST TROUGH 20S158W 10S174W. .48 HOUR FORECAST TROUGH 25S164W 17S179W. .FRONT 25S161W 20S177E MOVING SE 15 KT. .24 HOUR FORECAST FRONT MOVED S OF AREA. .WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA. .SEAS 2.5 TO 3.0 M S OF LINE 25S165W 11S164W 03S178E 15S171E 25S178E...AND N OF LINE 00S172W 08S160W 12S120W. .24 HOUR FORECAST SEAS 2.5 TO 3 M N OF LINE 03S168W 07S153W 12S120W. .48 HOUR FORECAST SEAS 2.5 TO 3 M N OF 07S BETWEEN 150W AND 162W... E OF LINE 12S120W 07S131W 02N120W...S OF 18S E OF 132W...AND S OF 22S BETWEEN 169E AND 180E. .SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA. $$ .FORECASTER M BALLARD. HONOLULU HI.