Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
336 AM EDT Mon Mar 29 2021

Valid 00Z Tue Mar 30 2021 - 00Z Tue Apr 6 2021

An inverted surface trough is developing near 170 degrees west, in
response to an upper low situated near 30 degrees north that
remains nearly anchored in place through much of the week.  This
will evolve into a closed surface low that will slowly track
westward and away from the state. 

A typical trade wind pattern should prevail this week with showers
mainly confined to windward regions, and continue through much of
next week.  Easterly flow of 15-25 mph with higher gusts will be
likely, with the greatest coverage of showers across the windward
terrain of the Big Island.  The heavy rainfall associated with the
developing trough mentioned earlier should remain well west of the
state.

Hamrick