Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
317 AM EDT Sat Jun 10 2023
Valid 00Z Sun Jun 11 2023 - 00Z Sun Jun 18 2023
The core of the subtropical high is expected to be nearly anchored
in place around 35N/145W through the entire forecast period, and
the Islands will be on the southwestern periphery of this high
with good agreement among the ensemble means for this scenario.
This will also be co-located with a building upper level high in
the same general region. There may be a weak upper level trough
that passes by for the middle of the week, but it should not have
a noticeable effect on the local weather for most locations.
In terms of sensible weather, low level trades should generally be
out of the east with some occasional ESE component at times, with
moderate flow velocities expected. Most of the terrain enhanced
showers should be across the Big Island, and lighter QPF across
the other Islands. No major surges of tropical moisture are
expected over the next week.