Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
824 AM EDT Mon Oct 14 2019

Valid 00Z Tue Oct 15 2019 - 00Z Tue Oct 22 2019

Post-Tropical Cyclone Ema was located near 25.4N 168.3W at 09 UTC
and has sustained winds of 30 knots with gusts to 40 knots. Ema is
forecast to continue to track northwestward, increasingly away
from the Hawaiian Islands. Ema still offers a maritime threat and
small craft advisories remain in effect offshore the central and
southern islands.

In the wake of Ema, much drier air and ridging aloft has moved
over the state. Beyond the weekend expect the upper ridge to
settle northwest/north of the state. Flow around this ridge will
bring in pockets of moisture from the northeast while pushing a
weakening cold front with some enhanced shower potential to the
islands into Wed/Thu under a weakness aloft. Post-frontal high
pressure will build strongly to the north then northeast of the
state later week into next week in a pattern favoring return of
increasing island trades with modest daily windward terrain
focusing showers under a re-emerging ridge aloft.

Schichtel