Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
328 AM EST Sun Feb 21 2021

Valid 00Z Mon Feb 22 2021 - 00Z Mon Mar 1 2021

The weak upper level low that was in place near the western
Islands has weakened.  By the beginning of the week, the ensemble
means are supporting the development of an inverted surface 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.  Enhanced surf can also be
expected for east-facing beaches.  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 Friday.  However, a weak disturbance may
affect the eastern Islands by next weekend and this may increase
shower coverage.

Hamrick