Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
822 AM EDT Mon Oct 15 2018

Valid 00Z Tue Oct 16 2018 - 00Z Tue Oct 23 2018

A low pressure system well to the northeast of the state will
allow for some clouds/moisture across the state today and on
Tuesday, but the deeper moisture will sweep away from the state as
the low pressure system moves eastward across the Central Pacific
by mid-week. After this, Hawaii will be located in a relative
weakness between two subtropical ridges, with drier air working
into the state along with weak trade winds. Through the week, a
series of amplifying upper level shortwaves move through the
Pacific to the north of the state, but not likely to dig far
enough south to have any significant impacts on the Island chain.
Models and ensembles show general agreement that upper level
ridging should strengthen over Hawaii by the weekend, with a
typical trade wind pattern expected.

Santorelli