Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
825 AM EDT Sat Apr 06 2019

Valid 00Z Sun Apr 07 2019 - 00Z Sun Apr 14 2019

A cold front will approach the area from the northwest tomorrow
and likely stall over Kauai with precipitable water values between
1.00-1.30 inches. Boundary will dissipate early next week with
mainly light showers over associated with it. Near to below
average PW values are forecast as trades increase next week in a
more typical pattern. By next Tue/Wed, ensembles still show an
upper low to the east of the area with better clustering east of
150W as of 12Z Thu. However, with upper ridging bridging from the
Dateline through 30N/160W and continuing to the northeast, this
may act to retrograde the upper low westward into the eastern
islands Fri/Sat next week. This would increase the chance of
rainfall to at least the Big Island and Maui as deeper tropical
moisture may get wrapped in from the southeast. This may pose a
heavy rain threat next weekend.


Fracasso