Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
240 AM EST Sat Feb 20 2021

Valid 00Z Sun Feb 21 2021 - 00Z Sun Feb 28 2021

The weak upper level low that has been in place near the western
Islands is expected to slowly dissipate this weekend.  By the
beginning of the week, the ensemble means are supporting the
development of an inverted trough near 170W, and a strong surface
high centered to the northeast of the state. 

Moderate to breezy easterly trade winds can also expected across
the region for much the upcoming week owing to the tighter
pressure gradient, with mainly trade-wind based showers for
windward and mountainous areas.  Another cold front looks to
approach the region from the West by later in the period, but
models at this point keep the heaviest rainfall well west of
Hawaii at least through next week.

Hamrick