Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
809 AM EDT Tue Apr 26 2016

Valid 00Z Wed Apr 27 2016 - 00Z Wed May 04 2016

Ensembles remain in excellent agreement through the next week on
the synoptic picture for the central Pacific. An upper high to the
north (sfc high to the northeast) of the region will weaken by the
weekend as an upper trough (and surface front) pass by to the
north. Trades will thus slacken amid a weaker pressure gradient
Sat/Sun. Precipitable water values will rise and fall between
about 0.75 and 1.50 inches as waves of moisture pass through the
state, supporting generally light precipitation on mostly windward
and terrain areas. Next week, another upper high will push
eastward past 170W which supports a surface high to the north of
Hawai'i (about 1031-1033mb per the deterministic runs), which will
increase trades again.


Fracasso