Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
313 AM EDT Thu Mar 26 2020

Valid 00Z Fri Mar 27 2020 - 00Z Fri Apr 03 2020

Models and ensembles reasonably agree overall that brisk trades
persist in a tight pressure gradient underneath strong high
pressure to the north of the state. A relatively dry airmass
suggests that daily windward/mountain-focused showers should
remain limited in the short term. Rainfall potential will increase
Friday through the weekend as a favored guidance composite
decreases heights aloft as an upper ridge to the north of the
state weakens in response to digging trough energies. Lower
atmospheric inverted troughing will develop over the state as high
pressure shifts more into the eastern Pacific and as upper trough
and possible closed low energies settle over Hawaii and increase
instability. Trades should tend to veer and tap deeper moisture to
fuel widespread showers/thunderstorms that may linger into at
least early next week, especially across the eastern islands.

Schichtel