Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
722 AM EST Sat Feb 24 2018

Valid 00Z Sun Feb 25 2018 - 00Z Sun Mar 4 2018

Satellite imagery and local radars show an active weather pattern
ongoing across Hawaii with the heaviest activity currently
concentrated south and east of the big island in an axis of
deepened tropical moisture.  The models and ensembles are in
decent agreement on the synoptic scale pattern over the Hawaii
domain through next week.  A hint of an omega block flow pattern
over the central Pacific is indicated in the guidance, with the
main ridge axis situated generally near 150W with upper level
troughs to the southwest and southeast of the upper level high. 
The upper level low currently northwest of the Islands is forecast
to slowly drift northward over the next few days, followed by
another upper low in the same general area by the end of the
forecast period.  This may once again advect the deepest
precipitable water axis westward next week, perhaps west of Kauai.
 Trades should meanwhile build through next week as a strong
surface high pressure northeast of the state over the eastern
Pacific.  No cold fronts are expected to approach the Islands over
the next 7 days.

Hamrick