* WHAT...Mixed precipitation expected. Total snow accumulations up
to one inch and ice accumulations around one tenth of an inch.
* WHERE...Willapa Hills and Adjacent River Valleys of Pacific and
Wahkiakum Counties, Lower Columbia River and Cowlitz River
Valleys, and South Washington Cascade Foothills.
* WHEN...From 4 PM Thursday to 4 PM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy mixed precipitation expected. Total snow and sleet
accumulations up to one inch and ice accumulations up to two
tenths of an inch.
* WHERE...North Oregon Coast Range Lowlands.
* WHEN...From 10 AM Thursday to 10 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy mixed precipitation expected. Total snow and sleet
accumulations up to two inches and ice accumulations up to two
tenths of an inch.
* WHERE...North Oregon Coast Range.
* WHEN...From 10 AM Thursday to 10 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy mixed precipitation expected. Total snow and sleet
accumulations up to one inch and ice accumulations between one
tenth and two tenths of an inch. Winds gusting as high as 40 mph.
* WHERE...Outer Southeast Portland Metro.
* WHEN...From 4 AM Thursday to 10 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy mixed precipitation expected. Total snow and sleet
accumulations up to one inch and ice accumulations between one
tenth and two tenths of an inch. Winds gusting as high as 45 mph.
* WHERE...Portland Metro Lowlands, Greater Vancouver Metro, and
Portland West Hills and Chehalem Mountain.
* WHEN...From 4 AM Thursday to 10 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Mixed precipitation expected. Total snow accumulations up
to one inch and ice accumulations around one tenth of an inch.
Winds gusting as high as 35 mph.
* WHERE...South Washington and North and Central Oregon Coast.
* WHEN...From 4 AM Thursday to 4 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Significant icing expected. Total snow accumulations up to
one inch and ice accumulations up to three tenths of an inch.
* WHERE...Central and Southern Willamette Valley, Central Oregon
Coast Range Lowlands, and Central Oregon Coast Range.
* WHEN...From 10 PM this evening to 4 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Very cold wind chills as low as 15 below expected.
* WHERE...Blue Mountains of Oregon and Washington, Wallowa County,
Ochoco-John Day Highlands, East Slopes of the Oregon Cascades,
Central Oregon, and Upper Slopes of the Eastern Washington
Cascades Crest.
* WHEN...Until 7 AM PST Thursday.
* IMPACTS...The dangerously cold wind chills as low as 15 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
Frostbite and hypothermia will occur if unprotected skin is
exposed to these temperatures. Very cold temperatures can lead to
hypothermia with prolonged exposure.
* WHAT...Southeast winds 25 to 40 mph with gusts between 50 and 60
mph expected for the base of the northern Blue Mountains of Oregon.
* WHERE...Base of the Northern Blue Mountain Foothills of Oregon.
* WHEN...From 10 PM this evening to 10 PM PST Thursday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* WHAT...For the Cold Weather Advisory, very cold temperatures as
low as 20 below. For the High Wind Warning, south winds 25 to 40
mph with gusts 50 to 60 mph expected.
* WHERE...Grande Ronde Valley.
* WHEN...For the Cold Weather Advisory, until 7 AM PST Thursday. For
the High Wind Warning, from 10 PM this evening to 10 PM PST
Thursday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles. Frostbite and hypothermia
will occur if unprotected skin is exposed to these temperatures.
Very cold temperatures can lead to hypothermia with prolonged
exposure.
* WHAT...For the Cold Weather Advisory, very cold temperatures as
low as 20 below. For the High Wind Warning, south winds 25 to 40
mph with gusts 50 to 60 mph expected.
* WHERE...Grande Ronde Valley.
* WHEN...For the Cold Weather Advisory, until 7 AM PST Thursday. For
the High Wind Warning, from 10 PM this evening to 10 PM PST
Thursday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles. Frostbite and hypothermia
will occur if unprotected skin is exposed to these temperatures.
Very cold temperatures can lead to hypothermia with prolonged
exposure.
* WHAT...Very cold wind chills as low as 15 below expected.
* WHERE...Blue Mountains of Oregon and Washington, Wallowa County,
Ochoco-John Day Highlands, East Slopes of the Oregon Cascades,
Central Oregon, and Upper Slopes of the Eastern Washington
Cascades Crest.
* WHEN...Until 7 AM PST Thursday.
* IMPACTS...The dangerously cold wind chills as low as 15 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
Frostbite and hypothermia will occur if unprotected skin is
exposed to these temperatures. Very cold temperatures can lead to
hypothermia with prolonged exposure.
Precipitation moving in from the south Thursday morning will fall
as snow or a rain/snow mix Thursday afternoon and evening.
Additional showers Thursday night may produce additional
accumulations.
* WHAT...Wet snow expected. Total snow accumulations up to two
inches. Winds gusting as high as 45 mph.
* WHERE...East Puget Sound Lowlands.
* WHEN...From 8 AM Thursday to 8 AM PST Friday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Thursday morning and evening commutes.
Gusty winds could bring down tree branches.
* ADDITIONAL DETAILS...Heaviest accumulations are expected over the
southern portion from King County southward. Little or no
accumulation is expected north of King County.
Precipitation moving in from the south Thursday morning will fall
as snow or a rain/snow mix Thursday afternoon and evening.
Additional showers Thursday night may produce additional
accumulations.
* WHAT...Wet snow expected. Total snow accumulations up to two
inches.
* WHERE...Hood Canal Area, Lower Chehalis Valley Area, and Southwest
Interior.
* WHEN...From 8 AM Thursday to 8 AM PST Friday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Thursday morning and evening commutes.
* WHAT...Snow expected. Total snow accumulations between 5 and 10
inches. Winds gusting as high as 45 mph.
* WHERE...Blue Mountains of Oregon and Washington.
* WHEN...From 7 AM Thursday to 10 PM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. Gusty winds could bring down tree branches.
* WHAT...Snow expected. Total snow accumulations between 3 and 5
inches. Winds gusting as high as 40 mph.
* WHERE...In Oregon, Foothills of the Northern Blue Mountains of
Oregon. In Washington, Foothills of the Blue Mountains of
Washington.
* WHEN...From 7 AM Thursday to 10 PM PST Friday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions. The hazardous
conditions could impact the Thursday morning and evening commutes.
* ADDITIONAL DETAILS...Blowing snow along areas at the base of the
northern Blue Mountain Foothills in Oregon, including Cabbage
Hill, may see visibilities drop to a half mile or less Thursday
morning through Thursday evening.
* WHAT...Snow expected. Total snow accumulations between 1 and 3
inches.
* WHERE...Eastern Columbia River Gorge of Oregon and Washington.
* WHEN...From 7 AM Thursday to 10 AM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. The hazardous conditions could impact the Thursday
morning and evening commutes.
* WHAT...Snow expected. Total snow accumulations between 5 and 10
inches. Winds gusting as high as 45 mph.
* WHERE...Blue Mountains of Oregon and Washington.
* WHEN...From 7 AM Thursday to 10 PM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. Gusty winds could bring down tree branches.
* WHAT...Snow expected. Total snow accumulations between 1 and 3
inches. Winds gusting as high as 50 mph.
* WHERE...Grande Ronde Valley.
* WHEN...From 7 AM Thursday to 10 PM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. Gusty winds could bring down tree branches.
* ADDITIONAL DETAILS...Blowing snow in the southern portion of the
valley may reduce visibilities to less than half a mile at times
Thursday morning through the afternoon.
* WHAT...Snow expected. Total snow accumulations between 3 and 5
inches. Winds gusting as high as 40 mph.
* WHERE...In Oregon, Foothills of the Northern Blue Mountains of
Oregon. In Washington, Foothills of the Blue Mountains of
Washington.
* WHEN...From 7 AM Thursday to 10 PM PST Friday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions. The hazardous
conditions could impact the Thursday morning and evening commutes.
* ADDITIONAL DETAILS...Blowing snow along areas at the base of the
northern Blue Mountain Foothills in Oregon, including Cabbage
Hill, may see visibilities drop to a half mile or less Thursday
morning through Thursday evening.