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Hawaii Extended Forecast Discussion
(Caution: Version displayed is not the latest version. - Issued 0644Z Sep 25, 2023)
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Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
244 AM EDT Mon Sep 25 2023

Valid 00Z Tue Sep 26 2023 - 00Z Tue Oct 03 2023

The guidance agrees that a warm core high strengthens to the north
and shifts northeast of Hawaii into next weekend should keep a
locally breezy trade wind pattern in place. Trades should weekend
late week into the weekend as an upper low moves nearby, the warm
core ridge to the northeast weakens, and a front slowly moves
through the Papahanaumokuakea Marine National Monument. 
Post-Tropical Depression 14-E is expected to pass far enough south
of the archipelago to preempt any major heavy rainfall threat,
though a modest uptick in shower activity cannot be ruled out. 
Showers through the next week will tend to focus over the
favorable windward/mountain areas but would become more feisty
late this week into the weekend.