Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
322 AM EDT Sun Aug 20 2023

Valid 00Z Mon Aug 21 2023 - 00Z Mon Aug 28 2023

The remnants of former T.S. Fernanda begin approaching the Islands
late Sunday night, with the model guidance continuing to suggest
the remnant low will pass south of the Big Island Monday evening. 
However, the northern periphery will likely encompass locations
from Oahu to the Big Island with PWs rising to near or slightly
above 2 inches, accompanied by heavy showers and a few
thunderstorms.  This will mainly be on Monday into Monday night
with the potential for several inches of rainfall that could
result in some flooding issues.

In the wake of this system will be a return to more seasonal
levels of atmospheric moisture and trade wind enhanced showers. 
Trades will return to a generally easterly direction by Tuesday
and beyond at speeds of 10-20 mph in most cases with the main
subtropical high remaining well north of the state near 40N/150W. 

Hamrick