Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
322 AM EDT Sun Mar 30 2025

Valid 00Z Mon 31 Mar 2025 - 00Z Mon 07 Apr 2025

An upper ridge over Hawaii should linger into Sunday bringing 
weaker trades and lighter rainfall. By Monday though, the ridge 
should slowly shift eastward as a deep upper low develops north of
the state within an overall blocky pattern. The guidance has come
into much better agreement regarding the evolution of this upper 
low compared to yesterday. The cold front for this system may 
eventually reach close to the islands allowing for strengthening 
southerly winds and some increased precipitation chances for 
mainly the western islands. Guidance shows the heaviest 
precipitation should remain west of the island chain though. As 
the upper low lifts northward late next week, surface high 
pressure may again move in north of the state allowing for a more 
typical trade wind pattern.


Santorelli