Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
737 AM EDT Fri Aug 12 2016

Valid 00Z Sat Aug 13 2016 - 00Z Sat Aug 20 2016

The 12/00Z GFS/ECMWF appeared to be decent pieces of forecast
guidance through day 7. Both deterministic runs build a strong
ridge to the northeast of Hawai'i and they (the two models) have
settled down considerably across the northern Pacific basin.
Seasonal trades and diurnal shower activity seem to be on track
for the next 4-5 days.

Along with the deterministic guidance---the ECENS/GEFS means
capture the scenario emerging in the tropical southeast Pacific.
And would recommend a blend of the two means and the deterministic
ECMWF beyond day 6 (next Thursday) to follow the development and
trajectories of mid-level waves along the ITCZ (currently invof 
10N latitude).

Vojtesak