Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
829 AM EDT Thu Oct 04 2018

Valid 00Z Fri Oct 05 2018 - 00Z Fri Oct 12 2018

Hurricane Walaka was currently lifting northward away from the
Papahanaumokuakea Marine National Monument and well away from
Hawai'i. An upper ridge axis will remain over the region until the
weekend when it will split to the northeast and southwest.
Combined with Walaka's movement northward, trades will veer to
southeasterly over most of the islands later this week into the
weekend and even south-southeasterly over the western islands as
the trailing trough behind Walaka attempts to push eastward. The
main moisture channel should remain just west of Kauai but the
ensembles show moisture from the east flowing toward 165W which
will act to keep a showery pattern for the island chain into next
week. Precipitable water values should increase to about 1-2
standard deviations above average before falling back to more
typical levels by the middle of next week. A more typical trade
wind pattern will redevelop for next week with scattered
windward/mauka showers that will generally by light to locally
moderate.


Fracasso