Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
315 AM EDT Wed Apr 9 2025

Valid 00Z Thu 10 Apr 2025 - 00Z Thu 17 Apr 2025

A strong surface high will be centered north of Hawaii through the
middle to end of the week near 35 degrees north, with breezy to
windy easterly trade wind flow. The models agree that a col will
likely develop within the subtropical ridge axis over the weekend,
with a frontal boundary approaching the far northwestern islands.
The high then rebuilds north of the state by next Monday before
moving northeast by Tuesday, with good overall model agreement.

The typical trade wind enhanced showers can be expected most days,
with perhaps some heavier showers across the northwestern Islands
for the end of this week with a brief increase in precipitable
water values. There are no major rainfall events on the horizon
over the next week.

Hamrick