Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
758 AM EDT Wed Jul 10 2019

Valid 00Z Thu Jul 11 2019 - 00Z Thu Jul 18 2019

Broad subtropical upper-level ridging will dominate the weather
across Hawaii through much of the next week. Trades will initially
be relatively light (10-15 kt), gradually increasing into the
15-25 kt range by the early to middle portion of next week as
surface high pressure strengthens north of the state. The GFS and
ECMWF show some consensus that an easterly wave may affect Hawaii
early next week, bringing a potential increase in moisture and
shower activity late Sun into Mon. The GFS keeps the deepest
moisture associated with the feature south of Hawaii, while the
ECMWF brings the moisture a bit farther north across Hawaii.
Regardless, at least some increase in shower activity is expected
in association with the feature. Drier air is expected to once
again spread across Hawaii in the wake of the wave by the middle
of next week.

Ryan