Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
304 AM EST Tue Jan 19 2021

Valid 00Z Wed Jan 20 2021 - 00Z Wed Jan 27 2021

The unsettled weather pattern that is currently in place across
the Hawaii domain is expected to improve by late Wednesday and
into Thursday, as the surface trough and upper level low slowly
weaken and move westward.  By the end of the week and into the
weekend, a strong surface high builds back in to the north and
northeast of the state.  This will tend to strengthen the trades
with a mainly easterly component to the flow, and then veers to
the east-southeast by Sunday.  This is in response to another
inverted surface trough that should develop near 170 degrees west
in response to a weak upper low, with most of the rain from this
event expected to be west of the Islands.

Hamrick