Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
351 AM EDT Wed May 14 2025

Valid 00Z Thu 15 May 2025 - 00Z Thu 22 May 2025

Hawaii will generally be on the southwestern periphery of a large
surface high through the remainder of this week and into the 
weekend. The ensemble means suggest a col will develop within the 
subtropical ridge axis by next weekend north of the far 
northwestern Islands with a weakening cold front approaching that 
region by next Sunday, but that front stays west of the main 
Islands and keeps any impactful weather away.

Low level trade wind flow should generally be out of the east most
days, with perhaps some ESE component next weekend. The usual
terrain enhanced showers can be expected most days across the
Islands, with greater coverage over the Big Island, but no major 
rainfall events are expected over the next week.

Hamrick