Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
742 AM EDT Fri Jun 20 2014

Valid 00Z Sat Jun 21 2014 - 00Z Sat Jun 28 2014

The 20/00Z GFS/ECMWF deterministic solutions and their ensembles
depict a stable forecast through Monday...and either solution
should reasonably depict the short term sensible weather impacts
for Hawai'i.    

The main feature of the short-term upper-level weather pattern is
a slow-moving trough northeast of the Big Island. This feature
lifts northeastward and away from the forecast area on Monday---as
an upper-level ridge migrates eastward from the central Pacific.

And in the lower levels...a subtropical ridge along 31N latitude
emerges with upper-level support from the Subtropical central
Pacific. The deep-layered ridge settles and solidifies over a vast
portion of the Subtropical Pacific---and the pressure
gradient/tradewinds increase in intensity by midweek (days 5-6).
These strong tradewinds will persist into/through day 7.

Vojtesak