PHZ105-171130-
508 PM HST Tue Dec 16 2025
.Synopsis for the Hawaiian offshore waters...
A cold front will move through the northwest and central waters
this week producing periods of showers and thunderstorms across
the region. Some of the thunderstorms could be strong. This
feature will weaken Thursday into the weekend then high pressure
will build Sunday into next week.
$$
PHZ180-171130- Hawaiian Offshore Waters- 508 PM HST Tue Dec 16 2025 TONIGHT Front from 26N157W to 23N160W to 19N163W. WSW winds 10 to 20 kt W of front, S winds 15 to 25 kt E of front. Seas 7 to 13 ft, highest NW waters. Numerous strong thunderstorms along front and within 180 nm E of front, elsewhere isolated thunderstorms NW Half. WEDNESDAY Front from 25N156W to 22N160W to 19N163W. WSW winds 10 to 20 kt W of front, SSW winds 15 to 25 kt E of front. Seas 7 to 11 ft. Numerous strong thunderstorms along front and within 180 nm E of front, elsewhere isolated thunderstorms W of 154W. WEDNESDAY NIGHT Front from 25N154W to 22N158W to 18N162W. NW to W winds 5 to 10 kt W of front, E of front SW to S winds 10 to 20 kt. Seas 7 to 12 ft. Numerous strong thunderstorms along front and within 180 nm E of front, elsewhere isolated thunderstorms W of 154W. THURSDAY THROUGH THURSDAY NIGHT Front weakened to trough over NW waters. S to SW winds 10 to 15 kt E of 158W, N to W winds up to 10 kt W of 158W. Seas 7 to 11 ft decreasing to 7 to 10 ft overnight. Scattered moderate to locally strong thunderstorms NW half. FRIDAY Trough over NW waters. S to SE winds 5 to 15 kt S of trough. N of trough, NE winds 10 to 15 kt. Seas 6 to 9 ft. Scattered moderate to locally strong thunderstorms along trough, elsewhere isolated thunderstorms N of 19N. SATURDAY Trough over N waters. SE winds 10 to 20 kt S of trough. N of trough, NE winds 10 to 15 kt. Seas 6 to 9 ft. Scattered moderate to locally strong thunderstorms along trough, elsewhere isolated thunderstorms N of 19N. SUNDAY E winds 15 to 25 kt. Seas 7 to 10 ft. Isolated thunderstorms W of 160W. $$
PHZ180-171130- Hawaiian Offshore Waters- 508 PM HST Tue Dec 16 2025 TONIGHT Front from 26N157W to 23N160W to 19N163W. WSW winds 10 to 20 kt W of front, S winds 15 to 25 kt E of front. Seas 7 to 13 ft, highest NW waters. Numerous strong thunderstorms along front and within 180 nm E of front, elsewhere isolated thunderstorms NW Half. WEDNESDAY Front from 25N156W to 22N160W to 19N163W. WSW winds 10 to 20 kt W of front, SSW winds 15 to 25 kt E of front. Seas 7 to 11 ft. Numerous strong thunderstorms along front and within 180 nm E of front, elsewhere isolated thunderstorms W of 154W. WEDNESDAY NIGHT Front from 25N154W to 22N158W to 18N162W. NW to W winds 5 to 10 kt W of front, E of front SW to S winds 10 to 20 kt. Seas 7 to 12 ft. Numerous strong thunderstorms along front and within 180 nm E of front, elsewhere isolated thunderstorms W of 154W. THURSDAY THROUGH THURSDAY NIGHT Front weakened to trough over NW waters. S to SW winds 10 to 15 kt E of 158W, N to W winds up to 10 kt W of 158W. Seas 7 to 11 ft decreasing to 7 to 10 ft overnight. Scattered moderate to locally strong thunderstorms NW half. FRIDAY Trough over NW waters. S to SE winds 5 to 15 kt S of trough. N of trough, NE winds 10 to 15 kt. Seas 6 to 9 ft. Scattered moderate to locally strong thunderstorms along trough, elsewhere isolated thunderstorms N of 19N. SATURDAY Trough over N waters. SE winds 10 to 20 kt S of trough. N of trough, NE winds 10 to 15 kt. Seas 6 to 9 ft. Scattered moderate to locally strong thunderstorms along trough, elsewhere isolated thunderstorms N of 19N. SUNDAY E winds 15 to 25 kt. Seas 7 to 10 ft. Isolated thunderstorms W of 160W. $$