Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
300 AM EDT Sat Mar 29 2025

Valid 00Z Sun 30 Mar 2025 - 00Z Sun 06 Apr 2025

An upper ridge over Hawaii should linger through much of the 
weekend bringing weaker trades and lighter rainfall. By next week,
the ridge should slowly shift eastward as an amplified trough or 
upper low meanders north of the state within an overall blocky 
pattern. There is a lot of spread in the guidance still for 
whatever develops north of the state, with the better consensus 
suggesting a deep and fairly stationary upper low. The latest GFS 
runs however continue to have a more strung out upper trough and 
is not the favored solution at this point. The cold front for this
system may eventually reach close to the northern islands 
allowing for strengthening southerly winds. Precipitation chances 
should increase as well, but guidance shows the heaviest 
precipitation should remain west of the island chain. 

Santorelli