Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
245 AM EDT Tue Aug 25 2020

Valid 00Z Wed Aug 26 2020 - 00Z Wed Sep 02 2020

Models/ensembles show consensus that an upper-level ridge should
expand across Hawaii over the next several days, while a strong
surface high builds across the North Pacific, centered well
north/northeast of Hawaii. The result will be moderate trades,
while a relatively dry air mass (PWs near or just below 1 inch)
advects across the state. Showers will be rather sparse in this
pattern, and primarily confined to windward locations. A tropical
wave is shown in relatively well-clustered model/ensemble guidance
passing south of Hawaii next weekend. At this time, it looks to
remain far enough south that the only effects on Hawaii would be a
tightening of the pressure gradient, and a period of rather gusty
trades. Models/ensembles showed some minor differences with the
strength of the upper-level ridge, but overall, no major
differences were noted, and a general model blend is preferred.

Ryan