Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
707 AM EST Thu Jan 17 2019

Valid 00Z Fri Jan 18 2019 - 00Z Fri Jan 25 2019

A cold front will drop through the island chain from northwest to
southeast today and Friday before washing out over the the area on
Saturday. Generally light rain is expected with locally modest
amounts as precipitable water values peak near or just over 1.50
inches. Weak high pressure will slide eastward to the north of the
region this weekend as trades briefly resume ahead of another cold
front that will approach Kauai Monday. Winds will veer to
southeasterly and southerly ahead of the front as showers
increase. Ensembles and latest GFS/ECMWF suggest the heavier
rainfall will be north of at least the central/eastern islands as
the upper trough pulls to the northeast. By next Wed/Thu, heights
will slowly rise as the front dissipates over the area and minimal
precipitation coverage decreases as trades resume.


Fracasso