Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
813 AM EDT Tue Mar 21 2017

Valid 00Z Wed Mar 22 2017 - 00Z Wed Mar 29 2017

The mid-latitude upper-level pattern over the Pacific will remain
amplified but mostly zonal, while mean ridging extends across the
entire Central Tropical Pacific. This particular regime should
last for the bulk of the forecast period with no frontal passages
expected to reach the island chain. At the surface, a series of
anticyclones passing to the north will ensure a general trade wind
regime. There may be brief upticks in the intensity of these winds
given any increase in synoptic pressure gradients. Expect only
some windward showers for the islands but these will be minimal.
By the very end of the forecast period, the gfs and ecmwf indicate
a possible weakness with the upper ridging which could allow a
frontal zone to begin approaching the state next Tuesday and a
narrow plume of precipitable water enhancement.  

Musher