Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
226 AM EDT Thu Sep 23 2021

Valid 00Z Fri Sep 24 2021 - 00Z Fri Oct 01 2021

A shortwave trough will continue progressing westward across the
westernmost Islands through Friday.  This will then give way to a
relatively quiet and uneventful weekend and into early next week
as surface high pressure and upper level ridging builds in across
the state.  Towards the middle of next week, another inverted
trough will likely approach from the east that may bring an
increase in moisture and lift with higher chances of rainfall. 
Otherwise, easterly flow on the order of 15 to 20 mph can be
expected much of the week/weekend with windward showers.

Hamrick