Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
343 AM EDT Mon Sep 12 2022

Valid 00Z Tue Sep 13 2022 - 00Z Tue Sep 20 2022

Trade winds are forecast to be around moderate levels across
Hawaii for much of the week, causing potential for showers to be
focused mainly over windward/mountain areas. Shower and cloud
coverage may be enhanced at times over the next few days as
somewhat above normal moisture is likely to arrive later Monday
into Tuesday on the northern end of a tropical moisture surge,
lasting through Wednesday or Thursday. General troughing aloft
particularly over the western islands like Kauai should lift
inversion heights and promote rainfall potential there. Some
instability may also be in place, which could lead to a few
thunderstorms. Later in the week around Thursday/Friday, a slight
decrease in trades may occur leading to a hybrid trades and
land/sea breeze pattern, but likely in a relatively drier
environment as moisture levels return closer to normal. Moderate
trades currently look likely for the weekend, and the possibility
for another moisture surge early next week will continue to be
monitored.

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