Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
740 AM EDT Thu Apr 28 2016

Valid 00Z Fri Apr 29 2016 - 00Z Fri May 06 2016

The 28/00Z ECENS/GEFS and their deterministic runs were in
extremely good agreement through day 6 (5/00Z) across much --- if
not all the western hemisphere from the Dateline eastward to the
eastern coast of North America. The models agree with the
amplified --- but stable mid-latitude wavelength pattern --- which
allows a strong ridge along Canada's west coast to shift eastward
and lower pressure (troughing) to prevail across Alaska and the
Gulf of Alaska.

In turn, this allows the Subtropical Pacific Ocean basin to
maintain a strong Subtropical Ridge ---during this particular
7-day forecast period.

Current Hawai'i forecasts looked 'on-target' --- with both
deterministic pieces of guidance (the ECMWF/GFS) likely to add
some value --- even out into the day6-7 period.

Vojtesak