Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
301 AM EDT Thu Mar 20 2025

Valid 00Z Fri 21 Mar 2025 - 00Z Fri 28 Mar 2025

A composite of favored and reasonably well clustered model and 
ensemble mean guidance offers an island trade flow pattern with 
generally below normal available moisture over the next few days.
This occurs as nearby upper troughing loses influence and as 
surface high pressure bridges from the north to settle to the 
northeast of the state. Guidance then signals passage of an 
energetic mid-latitude upper trough to the north of the state 
later weekend and early next week that would disrupt trades while
forcing a moisture pooling and enhanced rainfall focusing cold 
front into the islands early next week, albeit with push trending
slightly less ardent in latest guidance overall.

Schichtel