Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
736 AM EDT Tue May 28 2019

Valid 00Z Wed May 29 2019 - 00Z Wed Jun 05 2019

The models indicate a strong and persistent deep layer anticyclone
northeast of the islands that builds north of the islands the
latter half of this week through the weekend, and into early next
week.

Weak trade winds through Thursday will strengthen Friday into the
weekend as the high building north of the islands increases the
low level pressure gradient. With precipitable water values near
average for late May/early June, mainly windward/mauka showers are
expected with light to occasionally moderate amounts over the next
week.
With the persistent ridge, areas of drier air aloft will develop
so there will be potential for pockets of drier air to move across
the island early next week. Models/ensembles remain in good
agreement overall on the height/pressure patterns.

Petersen