* WHAT...Snow and areas of blowing snow expected. Additional snow
accumulation of up to 1 inch in the Upper Treasure and Magic
Valleys including the Boise metro, with an additional 1 to 3
inches in the Lower Treasure Valley. There is a chance of freezing
rain in the Treasure Valley and Western Magic Valley late tonight
through Friday morning. An additional 3 to 6 inches possible in
the mountains and Camas Prairie, and across northern Malheur and
Harney Counties. Winds gusting as high as 40 mph causing areas of
blowing and drifting snow.
* WHERE...Portions of south central, southwest, and west central
Idaho and northeast and southeast Oregon.
* WHEN...Until 11 AM MST /10 AM PST/ Friday.
* IMPACTS...Snow covered roads causing slick conditions combined
with blowing snow will cause hazardous conditions. Travel will
remain difficult through the evening commute.
* WHAT...Snow and blowing snow expected. Total snow accumulations
between two and four inches. Winds gusting as high as 50 mph in
the western Columbia River Gorge. Strong winds may loft snow and
result in visibility falling below half a mile.
* WHERE...Western and Central Columbia River Gorge, the Corbett area
and the Hood River Valley.
* WHEN...Until 10 PM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Snow expected. Total snow accumulations of four to eight
inches. Winds gusting as high as 35 mph.
* WHERE...Northern and Central Cascades and Foothills in Oregon, and
South Washington Cascades.
* WHEN...Until 10 PM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Mixed precipitation. Total snow accumulations of one to
three inches and ice accumulations around a light glaze. Winds
gusting as high as 35 mph.
* WHERE...Willapa Hills and Adjacent River Valleys of Pacific and
Wahkiakum Counties, and South Washington Cascade Foothills.
* WHEN...Until 4 PM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy mixed precipitation. Total snow accumulations of one
to four inches and ice accumulations around a light glaze.
* WHERE...Lower Columbia River and Cowlitz River Valleys.
* WHEN...Until noon PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy mixed precipitation. Total snow accumulations of one
to three inches and ice accumulations around one tenth of an inch.
Winds gusting as high as 40 mph in the eastern Portland/Vancouver
Metro.
* WHERE...Portland Metro Lowlands, Greater Vancouver Metro, and
Portland West Hills and Chehalem Mountain.
* WHEN...Until 10 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Significant ice accumulation on
power lines and tree limbs may cause power outages.
* WHAT...Mixed precipitation. Total snow accumulations up to one
inch and ice accumulations around a light glaze.
* WHERE...Clatsop County and Tillamook County Coast, and South
Washington Coast.
* WHEN...Until 4 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Precipitation will transition over to
primarily freezing rain this afternoon. The Thursday evening
commute will be affected. Due to areas of freezing rain, power
outages are possible.
* WHAT...Snow and blowing snow expected. Total snow accumulations
between two and four inches. Winds gusting as high as 50 mph in
the western Columbia River Gorge. Strong winds may loft snow and
result in visibility falling below half a mile.
* WHERE...Western and Central Columbia River Gorge, the Corbett area
and the Hood River Valley.
* WHEN...Until 10 PM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Snow expected. Total snow accumulations of four to eight
inches. Winds gusting as high as 35 mph.
* WHERE...Northern and Central Cascades and Foothills in Oregon, and
South Washington Cascades.
* WHEN...Until 10 PM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy mixed precipitation. Total snow accumulations of one
to four inches and ice accumulations around a light glaze.
* WHERE...Lower Columbia River and Cowlitz River Valleys.
* WHEN...Until noon PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy mixed precipitation. Total snow accumulations of one
to three inches and ice accumulations around one tenth of an inch.
Winds gusting as high as 40 mph in the eastern Portland/Vancouver
Metro.
* WHERE...Portland Metro Lowlands, Greater Vancouver Metro, and
Portland West Hills and Chehalem Mountain.
* WHEN...Until 10 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Significant ice accumulation on
power lines and tree limbs may cause power outages.
* WHAT...Heavy mixed precipitation expected. Total snow
accumulations of two to four inches and ice accumulations around
one tenth of an inch.
* WHERE...North Oregon Coast Range, North Oregon Coast Range
Lowlands, and Outer Southeast Portland Metro.
* WHEN...Until 10 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Significant ice accumulation on
power lines and tree limbs may cause power outages.
* WHAT...Mixed precipitation. Total snow accumulations up to one
inch and ice accumulations around a light glaze.
* WHERE...Clatsop County and Tillamook County Coast, and South
Washington Coast.
* WHEN...Until 4 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Precipitation will transition over to
primarily freezing rain this afternoon. The Thursday evening
commute will be affected. Due to areas of freezing rain, power
outages are possible.
* WHAT...Significant icing. Total ice accumulations between one
tenth and three tenths of an inch.
* WHERE...Central and Southern Willamette Valley, Central Oregon
Coast Range Lowlands, and Central Oregon Coast Range.
* WHEN...Until 4 AM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Significant ice accumulation on
power lines and tree limbs may cause widespread and long-lasting
power outages.
* ADDITIONAL DETAILS...Precipitation will transition over to
primarily freezing rain this afternoon. The Thursday evening
commute will be affected. Due to areas of freezing rain, power
outages are possible.
A band of light snow will move through the region late Thursday
afternoon and evening with light snow amounts around an inch or
less. Following a break Thursday night, light snow will fill back
in Friday morning and linger through Friday night with an additional
2 to 4 inches.
* WHAT...Snow. Snow accumulations between 2 and 4 inches.
* WHERE...Portions of North and North Central Idaho and Southeast
Washington.
* WHEN...Until 7 AM PST Saturday.
* IMPACTS...Plan on winter travel conditions. Light snow will impact
the Thursday evening and Friday commutes.
A band of light snow will move through the region late Thursday
afternoon and evening with light snow amounts around an inch or
less. Following a break Thursday night, light snow will fill back
in Friday morning and linger through Friday night with an additional
2 to 4 inches.
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches.
* WHERE...Cheney, Hayden, Downtown Spokane, Airway Heights, Coeur
d'Alene, Davenport, Worley, Rockford, Post Falls, Fairfield, and
Spokane Valley.
* WHEN...Until midnight PST Friday Night.
* IMPACTS...Plan on winter travel conditions. Light snow will impact
the Thursday evening and Friday commutes.
A band of moderate snow will produce a quick half inch to an inch
of snow across the Moses Lake Area and Upper Columbia Basin
through 600 PM this evening. Snowfall rates of up to a half inch
per hour will be possible resulting in slippery travel conditions.
Impacts are expected along Interstate 90 and for commuter traffic
this evening. Reduce speeds and increase travel distance between
vehicles. Areas to be impacts include Othello, Moses Lake,
Ritzville, Quincy, Ephrata, Coulee City, Wilbur, and Davenport.
* WHAT...Snow. Additional snow accumulations between 2 and 4 inches.
* WHERE...In Oregon, Foothills of the Northern Blue Mountains of
Oregon. In Washington, Foothills of the Blue Mountains of
Washington.
* WHEN...Until 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 evening and Friday morning
commutes.
* WHAT...Snow. Additional snow accumulations between 3 and 8 inches.
Winds gusting as high as 45 mph though this evening.
* WHERE...Blue Mountains of Oregon and Washington.
* WHEN...Until 10 PM PST Friday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.
* WHERE...Lower Columbia Basin of Washington.
* WHEN...Until 4 PM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. The hazardous conditions could impact the Thursday
evening and Friday morning commutes.