Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
757 AM EDT Tue May 21 2019

Valid 00Z Wed May 22 2019 - 00Z Wed May 29 2019

Nearly all model guidance continues to advertise upper-level
ridging holding strong across Hawaii through the week, with some
signs of perhaps slight weakening this weekend. This is a result
of broad troughing and reinforcing shortwave energy to the north
driving a couple of cold fronts southward, but still well to the
north of, the state. This would bring light and variable east to
southeasterly winds and diurnally driven isolated windward showers
through the week. Normal trades should resume this weekend and
into early next week as the frontal boundaries to the north wash
out and surface high pressure rebuilds north of the state.

Santorelli