The High Seas Forecast for the South Pacific

Heavy Precipitation in the West; Wintry Mix in the North; Fire Weather in the High Plains

Pacific moisture will continue to bring locally heavy coastal/lower elevation rain and heavy mountain snow to the West Coast and portions of the Intermountain West through Monday. A wintry mix will create hazardous travel across the northern Plains and Upper Midwest into early Monday. Dry, gusty winds are resulting in elevated to critical fire weather in the south/central High Plains. Read More >

979 FZPS40 PHFO 111506 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1730 UTC SUN JAN 11 2026 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 JAN 11 2026. 24 HOUR FORECAST VALID 1200 UTC JAN 12 2026. 48 HOUR FORECAST VALID 1200 UTC JAN 13 2026. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .LOW NEAR 16S160E 1006 MB NEARLY STATIONARY. TROUGH FROM LOW TO 14S161E 07S160E NEARLY STATIONARY. WINDS 20 TO 25 KT FROM 20S TO 15S W OF 164E. ISOLATED MODERATE TSTMS WITHIN 90 NM OF LOW AND TROUGH. .24 HOUR FORECAST LOW NEAR 17S161E 1005 MB. TROUGH FROM 17S160E TO LOW TO 14S163E 08S160E. WINDS 20 TO 25 KT FROM 21S TO 15S W OF 164E. .48 HOUR FORECAST LOW DISSIPATED. TROUGH 20S160E 17S164E 10S160E. WINDS 20 TO 25 KT FROM 19S TO 15S W OF 163E. .TROUGH 25S163W 18S174W 15S174E MOVING SW SLOWLY. WINDS 20 TO 25 KT S OF 20S BETWEEN 170E AND TROUGH. ISOLATED MODERATE TSTMS FROM 21S TO TROUGH. .24 HOUR FORECAST TROUGH 25S164W 17S180W 17S170E. WINDS DIMINISHED TO 20 KT OR LESS. .48 HOUR FORECAST TROUGH 25S163W 19S174W 17S170E. .TROUGH 25S153W 17S162W NEARLY STATIONARY. ISOLATED MODERATE TSTMS S OF 20S BETWEEN 162W AND 154W. .24 HOUR FORECAST TROUGH 25S153W 15S165W. .48 HOUR FORECAST TROUGH 25S152W 17S162W. .WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA. .SCATTERED MODERATE TSTMS FROM 15S TO 05S BETWEEN 170E AND 175E. ISOLATED MODERATE TSTMS FROM 20S TO 17S BETWEEN 140W AND 130W. $$ .FORECASTER SHIGESATO. HONOLULU HI.