Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
312 AM EDT Fri Apr 15 2022

Valid 00Z Sat Apr 16 2022 - 00Z Sat Apr 23 2022

An elongated sub-tropical surface high pressure centered near 35
degrees north through most of the period should keep primarily
east-northeasterly trade winds in place, with moderate to locally
breezy conditions at times over the next week.  This should result
in mainly some light showers favoring the typical windward
locations.

Beginning this weekend, there is good model consensus for an upper
shortwave settling over Hawaii and a col developing in the upper
level ridge axis through the middle of next week.  This will
increase lower tropospheric moisture into the region, especially
across the Big Island and Maui.  Therefore, an increase in
rainfall can be expected across these islands into midweek when
the shortwave weakens.  Otherwise, no major weather impacts are
currently anticipated over the next seven days.

Hamrick