Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
809 AM EDT Tue May 14 2019

Valid 00Z Wed May 15 2019 - 00Z Wed May 22 2019

Today's guidance agrees well with the overall forecast through the
first part of next week.  One upper high northwest of the main
islands will track just north of the area late Wednesday/early
Thursday, followed by another during the weekend.  The latter
should strengthen a bit as it reaches east/northeast of the state
early next week.  Meanwhile surface high pressure initially
northwest of the state will support light to moderate
northeasterly trades through midweek.  The surface high will drift
eastward later this week and beyond, leading to slightly stronger
and more easterly trades.  Then trades should become
east-southeasterly as the high strengthens and settles northeast
of the area.  Expect most shower activity to be light to moderate
given fairly high heights aloft and precipitable water values
within a standard deviation of climatology for most of the period.
 PWATs could be somewhat higher into Wednesday though.  Winds may
be light enough to allow for a combination of windward and
sea/land breeze focus early in the period, followed by increasing
windward focus as trades strengthen.

Rausch