Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
445 AM EDT Mon Jun 1 2026

Valid 00Z Tue 02 Jun 2026 - 00Z Tue 09 Jun 2026

The period begins with a series of low pressure systems lined up
from just south of the Aleutians southwestward of near Japan. 
Mid- level height rises and increasing surface pressure between 
the lows and the islands will generally keep a northeasterly flow 
across the state for much of the period although wind speeds 
should gradually strengthen by early next week. The models still 
depict an east to west passage of a wave early in the period that 
looks to bolster the chance of rain with modest to perhaps locally
heavier rainfall...over at least the Big Island (potentially into
Maui and Molokai/Lanai). Thereafter, windward/mauka showers are 
likely into early next week with some leeward spillage amid breezy
trades.

Bann