Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
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675 FXHW01 KWNH 020749 PMDHI Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 249 AM EST Tue Dec 2 2025 Valid 00Z Wed 03 Dec 2025 - 00Z Wed 10 Dec 2025 A cold front weakening north of Hawaii today will be followed by a second front approaching the region thereafter, possibly stalling west of the islands for a period of time. This is in association with a deep trough and cutoff low west of the state. Guidance shows much better agreement in this evolution compared to the past couple of days, showing high likelyhood that heavy rainfall along the front will remain west of the main islands. Wind speeds across the entire island chain, but especially the western islands, look moderate to gusty later in the week and next weekend with some increased precipitation. Santorelli $$