Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
340 AM EDT Tue Sep 10 2024
Valid 00Z Wed Sep 11 2024 - 00Z Wed Sep 18 2024
The latest ensemble means are in good agreement that the upper low
currently northeast of the Islands will slowly drift to the west
over the next few days, and then slowly dissipate. The meandering
weak frontal boundary over the central and northern Islands should
also slowly drift back to the west through the middle to end of
the week. The surface high then builds back to the north of the
Islands.
In terms of sensible weather, generally lighter and more variable
flow for the first half of the week can be expected with the col
in place and the frontal boundary nearby. A more steady easterly
flow resumes by the end of the week with the surface high
rebuilding north of the state. The mainly terrain favored showers
can be expected most days, but no major rainfall events are
currently anticipated over the upcoming week with the deepest
tropical moisture remaining well to the south, although there may
be some resurgence of higher PWs by next Tuesday.
Hamrick