Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
220 AM EST Thu Nov 17 2022

Valid 00Z Fri Nov 18 2022 - 00Z Fri Nov 25 2022

The subtropical surface high is forecast to build back in to the
north of Hawaii going into the upcoming weekend into early next
week, and then the core of the high should be northeast of the
state by Wednesday.  The ensemble means are indicating a well
defined col developing in the ridge by early next week over the
far northwestern Islands, with the GEFS mean slightly to the east
of the EC mean.  A trailing cold front could reach the central
Islands by midweek as the trough moves eastward.

Trades should generally be out of the east-northeast on most days
with a gradually increasing velocity of the winds going into the
weekend as the pressure gradient gets stronger.  There may be a
surge of northeasterly winds for the northwestern Islands if the
front passes through.  In the precipitation department, there may
be a slight increase in shower coverage from Maui to the Big
Island for the Friday through Monday time period, and then again
by Thanksgiving ahead of the cold front.

Hamrick