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Area forecast discussion 
National Weather Service Pendleton or
945 am PST Friday Nov 28 2014

Short term...morning update...the next significant weather system
continues to move into southern British Columbia and the Pacific
northwest. Surface pressure gradients across the Columbia Basin,
Yakima Valley and north-central Oregon are tightening due to the
development of a surface low in b.C.. expect breezy to windy
conditions in these areas into this evening. Some locations may
approach advisory levels late this afternoon and this evening. Will
monitor and issue wind highlights as needed. Onshore flow will
persist across the region today with varying amounts of showers
expected. Shower chances should increase this afternoon into the
evening. Snow levels will remain high through the evening. Updates
focused on nudging winds up a bit more in the above mentioned areas,
and making some adjustments to probability of precipitation and snow levels. 90

Long term...previous discussion...have made few changes to the
extended forecast as models continue to disagree with the amount of
moisture moving northward into the area as well as the timing. Have
continued to lean toward the European with moisture moving northward
from central Oregon Sunday night to the rest of the area by Monday.
Snow levels remain low with most of the area seeing snow. The next
round of precipitation will be on Wednesday with rising snow levels.
This could lead to snow transitioning to rain during the day.
However...if the cold air in the lower elevations remain in place as
the warm air moves aloft...there could be a potential for brief
freezing rain. Will continue to monitor the situation. Temperatures
during the period will be below normal.

&&

Aviation...18z tafs...light rain will increase this afternoon with
a frontal system...with some rain shadowing east of the Cascades for
kykm and kpsc. Winds 20-30 kts will be seen at most locations
through 06z tonight with the exception of kdls which will be 15-25
kts by this afternoon.

&&

Preliminary point temps/pops...
PDT 62 35 35 14 / 60 80 50 20
alw 63 37 37 16 / 70 80 50 20
psc 63 35 37 17 / 30 50 20 10
ykm 58 32 32 12 / 30 30 20 0
hri 61 36 37 15 / 30 60 20 10
eln 52 28 28 12 / 40 40 20 0
rdm 56 34 34 8 / 50 70 50 20
lgd 55 38 39 12 / 70 80 70 30
gcd 54 35 35 11 / 60 60 70 30
dls 57 36 37 23 / 60 70 20 10

&&

PDT watches/warnings/advisories...
or...none.
Washington...none.
&&

For additional weather information, check our web site at...
www.Weather.Gov/Pendleton

$$

90/84/93

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