...MODERATE TO HEAVY MOUNTAIN SNOW THROUGH SATURDAY...
* WHAT...Snow expected above 4000 feet. Additional snow
accumulations between 4 and 7 inches. Local winds gusting as high
as 35 mph will cause blowing and drifting of snow.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 PM PST Saturday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions. Strong winds
could cause extensive damage to trees and power lines.
* ADDITIONAL DETAILS...Additional snowfall accumulations for I-84
along the Blue Mountains, including Meacham, are only expected to
be around 2 to 5 inches.
...MODERATE TO HEAVY MOUNTAIN SNOW THROUGH SATURDAY...
* WHAT...Snow. Additional snow accumulations 4 to 7 inches. Winds
gusting as high as 45 mph along ridgetops will cause blowing and
drifting of snow.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 4 PM PST Saturday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions. Gusty winds
could bring down tree branches.
* WHAT...Snow. Additional snow accumulations up to two inches.
* WHERE...In Idaho, Upper Weiser River. In Oregon, Baker County and
Oregon Lower Treasure Valley.
* WHEN...Until 5 PM MST /4 PM PST/ this afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Plan on slippery road
conditions. The hazardous conditions could impact the Friday
evening commute.
* WHAT...For the Winter Weather Advisory, snow and blowing snow
expected. Total snow accumulations 2 to 6 inches, with up to 10
inches possible over the higher terrain of Winter Rim and the
Warner Mountains. Winds gusting as high as 55 mph. For the Winter
Storm Watch, total snow accumulations between 8 and 20 inches
possible.
* WHERE...Lake County and eastern Klamath County, Modoc County. This
includes Highway 97 north of Chiloquin, Highway 140 near Bly
Summit, Quartz Mountain and in the Warners
east of Lakeview. Also Highway 31 from Valley Falls to Silver Lake
and Highways 139, 299, and 395 in Modoc County.
* WHEN...For the Winter Weather Advisory, until 10 AM PST Saturday.
For the Winter Storm Watch, from Saturday evening through Monday
morning.
* IMPACTS...For the Winter Weather Advisory, travel could be
difficult. The hazardous conditions could impact this evening's
commute. For the Winter Storm Watch, visibilities may drop below
1/4 mile due to falling and blowing snow with hazardous snow
covered roads. Weight of snow on tree limbs may down power lines
and could cause sporadic power outages. Travel could be very
difficult.
* WHAT...For the Winter Weather Advisory, snow and blowing snow
expected. Total snow accumulations 2 to 6 inches, with up to 10
inches possible over the higher terrain of Winter Rim and the
Warner Mountains. Winds gusting as high as 55 mph. For the Winter
Storm Watch, total snow accumulations between 8 and 20 inches
possible.
* WHERE...Lake County and eastern Klamath County, Modoc County. This
includes Highway 97 north of Chiloquin, Highway 140 near Bly
Summit, Quartz Mountain and in the Warners
east of Lakeview. Also Highway 31 from Valley Falls to Silver Lake
and Highways 139, 299, and 395 in Modoc County.
* WHEN...For the Winter Weather Advisory, until 10 AM PST Saturday.
For the Winter Storm Watch, from Saturday evening through Monday
morning.
* IMPACTS...For the Winter Weather Advisory, travel could be
difficult. The hazardous conditions could impact this evening's
commute. For the Winter Storm Watch, visibilities may drop below
1/4 mile due to falling and blowing snow with hazardous snow
covered roads. Weight of snow on tree limbs may down power lines
and could cause sporadic power outages. Travel could be very
difficult.
* WHAT...Snow expected. Total snow accumulations 2 to 6 inches with
winds gusting as highs as 40 mph.
* WHERE...Klamath Basin. This includes Highway 97 north of Chiloquin.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact this evening's commute.
* WHAT...Heavy snow expected. Total snow accumulations between 12
and 24 inches above 5000 feet, with up to 30 inches possible over
the highest peaks and ridgetops. Winds gusting as high as 50 mph.
* WHERE...The southern Oregon Cascades and Siskiyou Mountains. This
includes Highways 138 and 230 near Diamond Lake, Highway 62 near
Crater Lake, Highway 140 near Lake of the Woods and Highway 58 at
Willamette Pass and the Mt Ashland Ski Road up to the resort.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Visibilities may drop below 1/4 mile due to falling and
blowing snow. The strong winds and weight of snow on tree limbs
may down power lines and could cause sporadic power outages.
* ADDITIONAL DETAILS...Snowfall rates could reach 1 inch per hour at
times.
...SNOW THROUGH SATURDAY...
.A significant change in the weather pattern has begun as a winter
storm system arrives from the Pacific and brings moderate to heavy
snow to the Cascades and Blue Mountains.
* WHAT...Snow expected. Total snow accumulations between 5 and 10
inches with higher accumulations near the crest. Winds gusting as
high as 45 mph along exposed ridgetops.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 4 PM PST Saturday.
* IMPACTS...Significant snowfall with periods of heavy snowfall
rates will combine with low visibility to create very difficult
driving conditions. Gusty winds could bring down tree branches.
* ADDITIONAL DETAILS...Snow levels will rise to around 5000 feet
this afternoon. Snow levels will then lower to around 3000 feet
and lower tonight onward.
...SNOW THROUGH SATURDAY...
.A significant change in the weather pattern has begun as a winter
storm system arrives from the Pacific and brings moderate to heavy
snow to the Cascades and Blue Mountains.
* WHAT...Snow expected above 4000 feet. Total snow accumulations
between 6 and 12 inches. Local winds gusting as high as 35 mph
will cause blowing and drifting of snow.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 PM PST Saturday.
* IMPACTS...Significant snowfall with periods of heavy snowfall
rates will combine with low visibility to create very difficult
driving conditions. Strong winds could cause extensive damage to
trees and power lines.
* ADDITIONAL DETAILS...Total snowfall accumulations for I-84 along
the Blue Mountains, including Meacham, are only expected to be
around 3 to 5 inches.
* WHAT...Snow expected. Total snow accumulations between 1 and 4
inches with local amounts up to 6 inches.
* WHERE...In Idaho, Upper Weiser River. In Oregon, Baker County and
Oregon Lower Treasure Valley.
* WHEN...From 8 AM MST /7 AM PST/ this morning to 5 PM MST /4 PM
PST/ this afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult.
The hazardous conditions could impact the morning and evening
commutes.
* WHAT...Snow and blowing snow expected. Total snow accumulations 2
to 6 inches expected, with up to 10 inches possible over the
higher terrain of Winter Rim and the Warner Mountains. Winds
gusting as high as 55 mph.
* WHERE...Lake County and eastern Klamath County, Modoc County, and
Klamath Basin.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Friday morning and evening
commutes. Gusty winds could bring down tree branches.
* WHAT...Heavy snow expected. Total snow accumulations between 12
and 24 inches above 5000 feet, with up to 30 inches possible over
the highest peaks and ridgetops. Winds gusting as high as 50 mph.
* WHERE...The southern Oregon Cascades and Siskiyou Mountains. This
includes Highways 138 and 230 near Diamond Lake, Highway 62 near
Crater Lake, Highway 140 near Lake of the Woods and Highway 58 at
Willamette Pass and the Mt Ashland Ski Road up to the resort.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Visibilities may drop below 1/4 mile due to falling and
blowing snow. The strong winds and weight of snow on tree limbs
may down power lines and could cause sporadic power outages.
* ADDITIONAL DETAILS...Snowfall rates could reach 1 inch per hour at
times.
...SNOW THROUGH SATURDAY WITH AREAS OF LIGHT FREEZING RAIN THIS
MORNING...
.A significant change in the weather pattern has begun as a winter
storm system arrives from the Pacific and brings moderate to heavy
snow to the Cascades and Blue Mountains. There will be rain and
areas of light freezing rain across the Columbia Basin and the
Kittitas and Yakima Valleys.
* WHAT...Snow expected above 4000 feet. Total snow accumulations
between 6 and 12 inches. Local winds gusting as high as 35 mph
will cause blowing and drifting of snow.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 PM PST Saturday.
* IMPACTS...Significant snowfall with periods of heavy snowfall
rates will combine with low visibility to create very difficult
driving conditions. Strong winds could cause extensive damage to
trees and power lines.
* ADDITIONAL DETAILS...Total snowfall accumulations for I-84 along
the Blue Mountains, including Meacham, are only expected to be
around 3 to 5 inches.
...SNOW THROUGH SATURDAY WITH AREAS OF LIGHT FREEZING RAIN THIS
MORNING...
.A significant change in the weather pattern has begun as a winter
storm system arrives from the Pacific and brings moderate to heavy
snow to the Cascades and Blue Mountains. There will be rain and
areas of light freezing rain across the Columbia Basin and the
Kittitas and Yakima Valleys.
* WHAT...Snow expected. Total snow accumulations between 5 and 10
inches with higher accumulations near the crest. Winds gusting as
high as 45 mph along exposed ridgetops.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 4 PM PST Saturday.
* IMPACTS...Significant snowfall with periods of heavy snowfall
rates will combine with low visibility to create very difficult
driving conditions. Gusty winds could bring down tree branches.
...SNOW THROUGH SATURDAY WITH AREAS OF LIGHT FREEZING RAIN THIS
MORNING...
.A significant change in the weather pattern has begun as a winter
storm system arrives from the Pacific and brings moderate to heavy
snow to the Cascades and Blue Mountains. There will be rain and
areas of light freezing rain across the Columbia Basin and the
Kittitas and Yakima Valleys.
* WHAT...Mixed precipitation expected. Light freezing rain will
create ice accumulations of a light glaze. Little to no snow
accumulation.
* WHERE...Lower Columbia Basin of Oregon and Washington, Kittitas
Valley, and Yakima Valley.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Even light freezing rain amounts can cause dangerous
driving conditions.
* WHAT...Heavy snow possible above 3000 feet. Total snow
accumulations between 6 and 12 inches, and up to 15 inches above
5000 ft. Winds could gust as high as 40 mph.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...Until 10 PM PST Saturday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Snow levels will start around 4000-5000 ft on
Friday, before lowering towards 3000-3500 ft by Friday night.
Heavier precipitation to start late Friday morning with a slow
decrease in intensity through Saturday morning.
* WHAT...Heavy snow expected. Total snow accumulations up to 4
inches.
* WHERE...In Oregon, North Oregon Coast Range. In Washington,
Willapa Hills.
* WHEN...From 10 PM this evening to 10 PM PST Saturday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Snow levels will start around 3000-4000 ft on
Saturday morning, before lowering towards 500-1000 ft by late
Saturday morning.
SABPQR
* WHAT...A SIGNIFICANT WINTER STORM, A VARIABLE AND WEAK SNOWPACK,
AND A BUSY WEEKEND COULD COMBINE FOR UNIQUELY DANGEROUS
AVALANCHE CONDITIONS. AVALANCHES MAY TRIGGER EASILY AND COULD
BREAK WIDELY.
* WHERE...THE WASHINGTON CASCADES FROM THE CANADIAN BORDER TO THE
COLUMBIA RIVER, MT HOOD, AND THE OLYMPIC MOUNTAINS.
* WHEN...IN EFFECT FROM THU 18:00 PST TO SUN 18:00 PST.
* IMPACTS...A PROLONGED DRY PERIOD IN JANUARY CREATED A HIGHLY
VARIABLE AND POTENTIALLY WEAK SNOWPACK. ACTIVE WEATHER INCLUDING
SIGNIFICANT SNOWFALL AND WINDS COULD MAKE THESE LAYERS UNSTABLE.
HUMANS MAY EASILY TRIGGER AVALANCHES LARGE ENOUGH TO BURY OR
INJURE A PERSON.
* WHAT...Snow expected. Total snow accumulations 1 to 4 inches.
* WHERE...In Idaho, Upper Weiser River. In Oregon, Baker County and
Oregon Lower Treasure Valley.
* WHEN...From 8 AM MST /7 AM PST/ to 5 PM MST /4 PM PST/ Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be difficult. The
hazardous conditions could impact Friday's commutes.
* WHAT...An extended period of stagnant air, with light winds and
little vertical mixing. This is due to an inversion near the
surface that will continue to trap pollutants.
* WHERE...Portions of south central, southwest, and west central
Idaho and northeast and southeast Oregon.
* WHEN...Until 5 AM MST /4 AM PST/ Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
