Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
721 AM EST Wed Jan 11 2017

Valid 00Z Thu Jan 12 2017 - 00Z Thu Jan 19 2017

A very impressive mid-latitude trough over the central pacific
will press downstream over the next few days to the
east-northeast. The associated surface cold front with this large
scale feature will attempt to approach and reach the Hawaiian
Islands Thursday/Friday time-frame. A few enhanced showers ahead
of the low level convergence might reach Kauai but a strong
surface ridge building off the west coast and settling offshore of
CA will prohibit the front ultimately reaching the state. Global
models and ensembles show this scenario along with, a rather
robust 588dm ridge building southwest of the state early next
week. This upper ridge will eventually build and extend across the
islands to allow more seasonable trades and relatively dry
conditions.

Musher