Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
830 AM EDT Tue Apr 05 2016

Valid 00Z Wed Apr 06 2016 - 00Z Wed Apr 13 2016

Latest satellite imagery and Ocean Prediction Center analysis
shows a well defined front now just NW of Kauai as supported with
approach of an amplified mid-upper level trough. This scenario was
well forecast by most guidance at least a week in advance along
with the prospect of the precipitation and moisture pooling front
moving across the islands today into Wednesday, including some
heavier local downpours. Frontal moisture is expected to stall
near the Big Island and remain poised for return back across the
state. High pressure and secondary cells will bridge to the north
of Hawaii and support extended periods of moderate to breezy
post-frontal trades Wednesday/Thursday and again with another
surge from the weekend into early next week. This should favor a
pattern with windward terrain enhanced showers aided with return
moisture from the weakened lead frontal band and also with
possible impulse passage aloft between the surges around Friday
that could support more widespread shower activity.

Schichtel