Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
343 AM EDT Sun Mar 28 2021

Valid 00Z Mon Mar 29 2021 - 00Z Mon Apr 5 2021

A large surface high over the mid-latitudes of the central Pacific
this weekend will move eastward, and the ensemble means suggests a
new inverted trough develops near 170 degrees west by Monday as a
col develops within the surface ridge axis.  This is in response
to an upper low situated near 30 degrees north that remains nearly
anchored in place through much of the week. 

A more typical trade wind pattern should prevail after this
weekend 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