Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
828 AM EDT Sat Sep 27 2014

Valid 00Z Sun Sep 28 2014 - 00Z Sun Oct 05 2014

In a similar scenario as described yesterday based from a favored
model and ensemble composite blend, upper ridging and surface high
pressure currently to the northeast of Hawaii will ease eastward
and weaken through the weekend, with slowly weakening trades. Next
week, the potent extratropical remains of tropical storm Kammuri
in the west Pacific should be entrained into the westerlies along
40N and an in situ upper low lifting from the south of the
Aleutians up toward the Gulf of Alaska. Some trade response at
lower latitudes underneath could lead to more widespread than
average moisture/showers over the islands next week with higher
than average PW values between 1.50-1.75" or so, but
models/ensembles do keep the mid-latitude based cold front
northwest of the state through the forecast period.

Schichtel