Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
652 AM EST Sat Feb 04 2017

Valid 00Z Sun Feb 05 2017 - 00Z Sun Feb 12 2017

In respect to Hawai'i, the guidance remains in good agreement on
the flow pattern expected.  A trio of cyclonic gyres move across
the subtropics and Mid-Latitudes north of the state this period,
bringing at least two cold fronts by the archipelago into next
Saturday.  The system passing by Monday into Tuesday has a good
tap of tropical moisture due to the dynamics aloft which increases
precipitation chances across the region. Periods of heavy rainfall
look likely, with gusty winds as well with the passage of the
front. Winds veer back to north behind the boundary by
Wednesday/Thursday which should quickly dry things out.  Another
cold front moving through the Papahanaumokuakea National Marine
Monument Thursday and into next Friday moves into the main islands
Friday/Saturday which should allow winds to become southwesterly
from Friday into next Saturday and could bring more
moisture/higher precipitable water values than the early week
system -- heavy rains could again be possible.  Trade winds will
prove elusive over the next seven days.

Roth