Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
731 AM EDT Tue Jun 28 2016

Valid 00Z Wed Jun 29 2016 - 00Z Wed Jul 06 2016

The Subtropical Ridge will strengthen, broaden and anchor along
35N latitude during the forecast period. Trades appear to be on
the increase during the next 48 hours and hold firm through next
weekend.

The 28/00Z ECENS/GEFS means depict a typical Summer pattern ---
with a quasi-stationary upper-level trough in the eastern Gulf of
Alaska and a rather flat flow across the mid-latitude Pacific
(along/north of 50N). This pattern generally will allow the
formation of one or more TUTT cells (mid-level closed lows) in the
east central Pacific---which will meander westward towards
Hawai'i. One such feature is depicted by the means around day 6.

Vojtesak