Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
215 AM EST Sat Feb 15 2020

Valid 00Z Sun Feb 16 2020 - 00Z Sun Feb 23 2020

Water vapor imagery show that a main upper low that has been
affecting the state in recent days is now well south-southwest of
the islands. Observations and blended water vapor imagery shows an
associated plume of deeper moisture is shifting westward offshore
the islands. A favored composite of compatable model and ensemble
guidance supports ample trades with limited windward/mountain
focused showers into next week in a drier pattern with reduced
moisture availability under mean ridging aloft. High pressure over
the eastern Pacific and a surface trough to the west of the main
islands will support moderate to brisk trades from the
east-southeast into this weekend. Winds may turn more easterly by
early next week as the trough weakens. High pressure bridging to
the north of the state mid-later next week would act to reinforce
trades from the east-northeast then east. 

Schichtel