The High Seas Forecast for the Central North Pacific

Tracking Severe Thunderstorms and Excessive Rainfall in the Southern U.S.; Winter Storm to Impact the Northern U.S.

A storm system will shift from eastern Texas into the lower Mississippi Valley Monday with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. A Flood Watch remains in effect. In the northern U.S., a storm will bring heavy snow and gusty winds over parts of the northern Rockies, northern Plains, and Upper Midwest Monday into Wednesday. Read More >

894 FZPN40 PHFO 300308 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 0500 UTC SUN NOV 30 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 NOV 30 2025. 24 HOUR FORECAST VALID 0000 UTC DEC 01 2025. 48 HOUR FORECAST VALID 0000 UTC DEC 02 2025. .WARNINGS. ...STORM WARNING... .LOW 28N171E 1000 MB. WARM FRONT FROM LOW TO 28N176E. COLD FRONT FROM LOW TO 23N166E 22N160E. LOW AND FRONT MOVING E 35 KT. WINDS 30 TO 35 KT WITHIN 90 NM S SEMICIRCLE OF LOW. WINDS 20 TO 30 KT ELSEWHERE N OF 25N W OF 172E. .12 HOUR FORECAST LOW 28N178E 999 MB. WARM FRONT FROM LOW TO 30N175W. COLD FRONT FROM LOW TO 25N175E 22N168E. WINDS 30 TO 50 KT N OF 27N BETWEEN 178W AND 173E. WINDS 20 TO 30 KT ELSEWHERE N OF 25N BETWEEN 175W AND 168E. .24 HOUR FORECAST LOW AND WARM FRONT MOVED N OF AREA. COLD FRONT 30N173W 25N180W 20N167E. WINDS 30 TO 50 KT N OF 27N BETWEEN 168W AND 175W. WINDS 20 TO 30 KT ELSEWHERE N OF 23N BETWEEN 165W AND 175E. .48 HOUR FORECAST FRONT 30N163W 24N172W. WINDS DIMINISHING TO 20 TO 30 KT N OF 25N W OF 157W. .SYNOPSIS AND FORECAST. .FRONT 30N157W 25N164W 20N180W 20N174E MOVING NE 25 KT N OF 170W NEARLY STATIONARY ELSEWHERE. .24 HOUR FORECAST FRONT 30N155W 25N165W. .48 HOUR FORECAST FRONT DISSIPATED. .WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA. .SEAS 6 TO 7 M N OF 28N BETWEEN 160W AND 170W. SEAS 4 TO 6 M ELSEWHERE N OF LINE 30N155W 14N175W 25N175E 25N160E. SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 30N153W 10N180W 12N160E. .24 HOUR FORECAST SEAS 4 TO 5 M 30N150W 23N160W 30N170W. SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 30N145W 07N160W 05N180W 07N160E. .SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA. .ITCZ 08N140W 06N150W 07N169W 05N180W 06N160E. ISOLATED MODERATE TSTMS WITHIN 90 NM OF ITCZ. .SCATTERED MODERATE TSTMS WITHIN 120 NM OF POINT 28N171E. $$ .FORECASTER PECHACEK. HONOLULU HI.