Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
752 AM EDT Wed Jun 18 2014

Valid 00Z Thu Jun 19 2014 - 00Z Thu Jun 26 2014
Local Islands' forecast looked on target with no concerns raised
by the 18/00z forecast guidance. The upper-level trough/compact
low east-northeast of the Big Island lingers through day
5...possibly day 6. Then lifts...fills and/or dissipates and
should not be a major sensible weather feature for the western
2/3rds of the state.

The 18/00Z GFS-ECMWF-Canadian solutions offered some variance in
the extended range with a disturbance in the tropical southeast
Pacific---off the southwest coast of Mexico. But overall...they
maintained decent continuity through Monday (day 5). Based on this
18/00Z cycle...would recommend a blend of the GEFS/NAEFS means and
deterministic GFS to get through day 7.  

From a consistency standpoint...thought the last 2 00Z/GFS cycles
excelled in the northern Pacific---at mid-latitudes---and
displayed better continuity than the ECMWF with the upper-level
high center invof 31N 175W at day 7. The 18/00Z deterministic
Canadian was much closer to the GFS solution in the Gulf of Alaska
and with the disturbance in the Tropics.
 
Vojtesak