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Area forecast discussion 
National Weather Service Honolulu HI
1008 am HST Wednesday Oct 7 2015

breezy northerly winds today will transition to moderate easterly trades
Thursday and continue through the weekend. As this pattern settles
in...we can expect showers to affect primarily the windward and
mountain areas....especially nights and mornings. The leeward Big
Island will see afternoon clouds and upslope showers with clearing


hurricane oho is rapidly exiting the area to the northeast of
Hawaii and high pressure is nosing in from the northwest. With the
islands caught between these two features... breezy north winds
will continue today and tonight. As oho accelerates towards the
Pacific northwest the pressure gradient over the state will relax
with a surface ridge forming north of the islands. The ridge will
bring easterly trade winds Thursday and maintain them through the

A stable atmosphere looks to remain in place into the weekend as
a middle-level ridge sits over the islands. Expect partly to mostly
cloudy skies with passing showers over windward and mountain
areas...and mostly clear skies over leeward locations with a few
showers. The leeward Big Island will continue a diurnal cycle of
mostly clear skies at night and in the early morning hours with
clouds and showers increasing in the afternoon hours. Trade showers
will increase over the weekend from east to west as an area of
increased moisture rides into the islands from the east. A front
will approach from the northwest early next week and may bring the
potential for more widespread rain...however... forecast confidence
is low with high model variance.


high pressure northwest of the state and hurricane oho
to the northeast...will keep a moderate north-northeast trade wind
flow in place through tonight. Clouds and showers will remain
focused across mountain and north through east sections of the islands.
VFR conditions are generally expected at the terminals...but brief
MVFR ceilings/visibilities will be possible in passing rain showers across windward and
Mauka areas.

Airmet Tango remains in effect for low level turb over and south
through west of the mountains across all islands. Low level winds will
diminish later today...and the airmet will be taken down at that


a Small Craft Advisory /sca/ is in place through today with breezy
northerly winds accelerating around the islands. See the Small Craft Advisory for
specific zones affected.

An above normal swell generated by hurricane oho spiked overnight
at the Hilo buoy but dropped rapidly this morning. The high surf
advisory for the northeast Big Island has been cancelled due to
the decreased surf heights. A small to moderate north- northwest
swell is expected to fill in over the weekend. A small south-southwest swell
will continue through the weekend. A small west swell is possible
over the weekend.


Hfo watches/warnings/advisories...
Small Craft Advisory until 6 PM HST this evening for Kauai
northwest waters-Kauai leeward waters-Kauai Channel-Kaiwi
Channel-Maalaea Bay-Pailolo Channel-Alenuihaha Channel-Big
Island windward waters-Big Island leeward waters-Big Island
southeast waters.



Morrison...discussion and marine

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