Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
343 AM EDT Sat Aug 21 2021

Valid 00Z Sun Aug 22 2021 - 00Z Sun Aug 29 2021

Guidance continues to highlight the Sunday-Monday time frame for
the state to see the primary effects of the remnant low associated
with former Hurricane Linda.  Associated moisture will bring a
period of potentially heavy rainfall while strong winds will be
possible to the north of the surface low track.  Although current
guidance is rather tightly clustered around a low track through
the central islands, this represents a meaningful southward
adjustment from 24-36 hours ago.  The recent variability
illustrates the ongoing uncertainty for determining the weather
conditions at specific locations.

After the remnant low's westward departure expect the pattern to
settle into a more typical trade regime.  Heights aloft will
decline somewhat mid-late week as an upper low travels northeast
of the area but precipitable water values are likely to be about
one standard deviation below normal.  Thus expect generally
windward/mountain showers to be in the lighter half of the
spectrum.  Trades may weaken gradually as mid-latitude high
pressure retreats northeastward.

Rausch