* 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.
* WHAT...Snow. Additional snow accumulations of 1 to 3 inches. Winds
gusting 40 to 60 mph in the southern Grande Ronde Valley through
this evening.
* WHERE...Grande Ronde Valley.
* WHEN...Until 10 PM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow and strong winds.
* ADDITIONAL DETAILS...The combination of strong winds, blowing and
drifting snow, and ongoing snowfall is expected to periodically
reduce visibilities to one-half mile or less through this
afternoon.
* 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 one-half inch to two
inches.
* WHERE...John Day Basin.
* WHEN...Until 4 PM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.
* WHERE...Foothills of the Southern Blue Mountains of Oregon and
Lower Columbia Basin of Oregon.
* 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.
* WHAT...Snow. Additional snow accumulations between 3 and 8 inches.
Winds gusting as high as 35 mph.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 4 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 between 2 and 4 inches.
Winds gusting as high as 40 mph through this evening.
* WHERE...Ochoco-John Day Highlands.
* WHEN...Until 4 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 one-half inch to two
inches.
* WHERE...Central Oregon.
* WHEN...Until 10 AM PST Friday.
* IMPACTS...Even light snowfall amounts can accumulate on roads and
cause dangerous driving conditions due to slippery and
snow-covered roads. The hazardous conditions could impact the
Thursday evening and Friday morning commutes.
* WHAT...Snow. Additional snow accumulations of 1 to 2 inches.
* WHERE...Eastern Columbia River Gorge of Oregon and Washington.
* WHEN...Until 10 AM PST Friday.
* IMPACTS...Even light snowfall amounts can accumulate on roads and
cause dangerous driving conditions due to slippery and
snow-covered roads. The hazardous conditions could impact the
Thursday evening and Friday morning commutes.
* WHAT...Snow. Additional snow accumulations of 1 to 2 inches.
* WHERE...North Central Oregon.
* WHEN...Until 10 AM PST Friday.
* IMPACTS...Even light snowfall amounts can accumulate on roads and
cause dangerous driving conditions due to slippery and
snow-covered roads. The hazardous conditions could impact the
Thursday evening and Friday morning commutes.
* WHAT...Large breaking waves of 20 to 23 feet.
* WHERE...The beaches and shorelines of Coos and Curry counties,
mainly from Cape Arago southward.
* WHEN...From 10 PM this evening to 2 PM PST Friday.
* IMPACTS...Large breaking waves will create hazardous
conditions along and within the surf zone, and could inundate
beaches and low lying shorelines. Beach erosion is possible,
and exposed infrastructure may be damaged.
* View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...Snow expected. Total snow accumulations between 6 and 12
inches. Winds gusting as high as 55 mph.
* WHERE...The southern Oregon Cascades and Siskiyou Mountains. This
includes areas from Lake of the Woods northward and higher
portions of the Siskiyou Mountains west of Interstate 5, including
the Mount Ashland Ski road, including portions of Highways 230, 62
and 140.
* WHEN...Until 9 AM PST Friday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Thursday evening and Friday
morning commutes.
* ADDITIONAL DETAILS...Heaviest snowfall accumulations are expected
near Diamond Lake and Crater Lake, this evening through Friday
morning.
* WHAT...South to southeast winds 20 to 40 mph with gusts of 40 to
60 mph.
* WHERE...Grande Ronde Valley.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Travel will be difficult, especially for high profile
vehicles.
* ADDITIONAL DETAILS...The combination of strong winds, blowing and
drifting snow, and ongoing snowfall is expected to periodically
reduce visibilities to one-half mile or less through this
afternoon.
* WHAT...Mixed precipitation. Additional snow accumulations 4-8
inches and ice accumulations around a light glaze. Winds gusting
as high as 40 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.
