Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
710 AM EDT Fri Oct 21 2016

Valid 00Z Sat Oct 22 2016 - 00Z Sat Oct 29 2016

Strong surface high pressure northwest of Hawai'i over the next
couple of days will keep a breezy trade wind pattern in place over
the area.  Waves of higher precipitable water values will push
through the area today but drier air rotating around the ridge
will move across the islands as the weekend progresses and remain
in place through most of next week.  The dry precipitable water
anomalies are 1-2 standard deviations below normal by the middle
of next week. The core of the high pressure builds north of the
islands mid to late next week, keeping conditions stable. 
Scattered windward showers are expected with totals limited due to
the limited available moisture. The models/ensemble means are in
better than average agreement, supporting a consensus based
approach to the forecast.


Petersen