Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
720 AM EST Mon Nov 21 2016

Valid 00Z Tue Nov 22 2016 - 00Z Tue Nov 29 2016

North of the Hawai`ian island chain, the pattern will remain quite
active across the mid-latitudes as a series of systems churn
eastward across the northern Pacific to the south of the
Aleutians.  Models indicate a mid-level weakness is expected near
the International Dateline down in the Tropics which persists to
some degree through the period varying in strength between a
closed low and a weakness in the subtropical ridge.  A system in
the Westerlies moves out of Asia towards the Dateline by next
Monday, which should bring a frontal zone into the
Papahanaumokuakea National Marine Monument which should lead to
some weakening of the trades next Monday.  The 00z Canadian looks
strong and slow with the feature in the Westerlies, which is its
usual bias.

Weather-wise, the usual windward showers are possible throughout
the period. Models are rather light with forecast amounts given
the best moisture available appears to be displaced southward due
to the strength of the subtropical ridge.


Roth/Rubin-Oster