Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
729 AM EST Tue Jan 08 2019

Valid 00Z Wed Jan 09 2019 - 00Z Wed Jan 16 2019

A trailing front is bringing an increase of preciptable water this
morning across the northern Hawai'ian islands early this
morning--which will bring slightly higher chances of rain and an
increase in winds. The upper ridge will begin to retreat on
Wednesday as a digging trough north of the area brings another
frontal boundary north of the region on Thursday. Fluctuations in
wind direction and speed can be expected in association with the
frontal boundary today and Thursday. By the weekend, high pressure
will return along with dry conditions.

By Monday into Tuesday, trade wind induced showers will return to
the area. By Tuesday night, high pressure will once again retreat
as another frontal boundary approaches Hawai'i. Expect another
round of increased chances of showers with this system.

Reinhart