* WHAT...Mixed precipitation. Light snow this afternoon will mix
with and change to rain and freezing rain tonight. Most of the
freezing rain will occur in the valleys between 500 and 2000 feet.
Snow levels will hover near 500 feet into this evening, then
slowly rise overnight reaching 2500 feet or higher later tonight.
Additional snow accumulations of 1 to 4 inches with ice
accumulations of a tenth to a quarter of an inch likely. Heavier
snow accumulations expected for areas above 3000 feet, where 3 to
9 inches of snow is expected through tonight.
* WHERE...In Oregon, North Oregon Cascades and Upper Hood River
Valley. In Washington, South Washington Cascades.
* WHEN...Until 4 PM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
...The Flood Warning continues for the following rivers in Oregon...
Coquille River at Coquille affecting Coos County.
For the Coquille River...including Coquille...Minor flooding is
forecast.
* WHAT...Minor flooding is forecast. The river is receding, but it's
expected top rise again late tonight and reach minor flooding by
Friday afternoon. Additional rainfall through the weekend will
cause the river to rise again, and minor flooding persisting into
Sunday afternoon. The river is expected to crest near 22.9 feet
late Saturday afternoon and evening.
* WHERE...Coquille River at Coquille.
* WHEN...Until late Monday evening.
* IMPACTS...At 23.0 feet, Some farm buildings may be threatened and
roads covered in low areas by rising water. Expect widespread
flooding throughout the Coquille River floodplain.
* ADDITIONAL DETAILS...
- At 9:45 AM PST Thursday the stage was 18.5 feet.
- Bankfull stage is 20.0 feet.
- Forecast...The river will oscillate around flood stage with a
maximum value of 22.9 feet late Saturday afternoon and
evening.
- Flood stage is 21.0 feet.
- Flood History...This crest compares to a previous crest of
22.2 feet on 01/23/1999.
- http://www.weather.gov/safety/flood
* WHAT...Mixed precipitation expected. Total snow accumulations of 3
to 10 inches and ice accumulations around a light glaze.
* WHERE...West Slopes South Central Cascades and Passes.
* WHEN...From 1 AM to 4 PM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
Patchy dense fog and freezing fog are continuing to linger across
portions of north-central Oregon and along the northern Blue
Mountain foothills. Area webcams and observations highlight
primary concerns along the Highway 11, Highway 97, and Highway 197
corridors, where visibilities are one quarter mile or less.
Motorists are urged to use caution as visibilities could change
quickly.
Patchy dense fog and freezing fog are continuing to linger across
portions of north-central Oregon and along the northern Blue
Mountain foothills. Area webcams and observations highlight
primary concerns along the Highway 11, Highway 97, and Highway 197
corridors, where visibilities are one quarter mile or less.
Motorists are urged to use caution as visibilities could change
quickly.
* WHAT...Snow expected. Total snow accumulations between 4 and 7
inches. Between Coles Corner and Stevens Pass 6 to 10 inches is
expected.
* WHERE...Leavenworth, Stehekin, Holden Village, Stevens Pass, and
Plain.
* WHEN...From 3 AM Friday to 10 AM PST Saturday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the Friday morning and evening commutes.
* WHAT...Snow expected. Total snow accumulations 2 to 5 inches.
Locations along the Columbia River will generally see 1 to 2
inches. The mountains above 3000 feet will see 4 to 8 inches, with
locally higher amounts in Idaho.
* WHERE...Metaline, Ione, Colville, Flowery Trail Road, Priest
River, Deer Park, Northport, Clark Fork, Newport, Athol,
Sandpoint, Bonners Ferry, Eastport, Springdale-Hunters Road,
Kettle Falls, Fruitland, Schweitzer Mountain Road, Orin-Rice Road,
Tiger, Metaline Falls, and Chewelah.
* WHEN...From 9 AM Friday to 10 AM PST Saturday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the Friday evening commute.
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches. Locations along the Okanogan and Columbia River will
generally see an inch or less. Loup Loup and Sherman Pass is
expected to see 5 to 7 inches.
* WHERE...Methow, Twisp, Omak, Inchelium, Disautel Pass, Chesaw
Road, Loup Loup Pass, Brewster, Nespelem, Wauconda, Conconully,
Winthrop, Okanogan, Sherman Pass, Highway 20 Wauconda Summit,
Tonasket, Republic, Mazama, Oroville, Boulder Creek Road, and
Bridgeport.
* WHEN...From 6 AM Friday to 7 AM PST Saturday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the Friday morning and evening commutes.
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches. On the higher benches of the Waterville Plateau 4 to 7
inches expected. Along the Columbia River accumulations will
generally be 1 to 2 inches.
* WHERE...Entiat, Mansfield, Cashmere, Wenatchee, Pangborn Airport,
Badger Mountain Road, Chelan, Waterville.
* WHEN...From 3 AM Friday to 2 AM PST Saturday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the Friday morning and evening commutes.
Patchy dense fog and freezing fog has developed in portions of
central and north-central Oregon as well as along the Blue
Mountain foothills. Fog is expected to persist through the night
and into morning with visibility of one-quarter mile or less in
some places.
* WHAT...Mixed precipitation expected. Total snow accumulations of 1
to 3 inches and ice accumulations up to one tenth of an inch.
* WHERE...Simcoe Highlands.
* WHEN...From 1 AM to 4 PM PST Friday.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...The highest chance of freezing rain and ice
accumulation will be in the vicinity of Satus Pass and Bickleton.
* WHAT...Mixed precipitation expected. Total snow accumulations of 3
to 8 inches and ice accumulations around a light glaze.
* WHERE...Upper and Lower Slopes of the Eastern Washington Cascades
Crest.
* WHEN...From 1 AM to 4 PM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
* ADDITIONAL DETAILS...The highest chance of freezing rain and light
ice accumulation will be in the vicinity of Trout Lake and
Glenwood.
* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches.
* WHERE...Kittitas Valley and Yakima Valley.
* WHEN...From 1 AM to 4 PM 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
Friday morning commute.
* ADDITIONAL DETAILS...Highest snow totals are expected in the
western portions and higher elevations of the Yakima and Kittitas
valleys. Lower totals are anticipated in the lower elevations
towards Sunnyside and Granger.
* WHAT...Freezing rain expected. Total ice accumulations around one
tenth of an inch.
* WHERE...Foothills of the Southern Blue Mountains of Oregon and
North Central Oregon.
* WHEN...From 7 PM this evening to 4 PM PST Friday.
* IMPACTS...Difficult travel conditions are possible. The hazardous
conditions could impact the Friday morning commute.
* WHAT...Mixed precipitation expected. Total snow accumulations up
to two inches and ice accumulations of up to two tenths of an inch.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...From 7 PM this evening to 4 PM PST Friday.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...The highest chance of freezing rain and ice
accumulations will be roughly along and north of HWY26. Little to
no ice is expected along HWY20.
* WHAT...Mixed precipitation expected. Ice accumulations of one
tenth to a quarter of an inch possible. Locally higher
accumulations possible.
* WHERE...In Oregon, North Oregon Cascades and Upper Hood River
Valley. Impacts mainly above 3000 feet but including Parkdale in
Upper Hood River Valley. In Washington, South Washington Cascades
above 3000 feet.
* WHEN...From 7 PM this evening to 4 PM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Mixed precipitation expected. Ice accumulations of one
tenth to a quarter of an inch possible. Locally higher
accumulations possible.
* WHERE...In Oregon, North Oregon Cascades and Upper Hood River
Valley. Impacts mainly above 3000 feet but including Parkdale in
Upper Hood River Valley. In Washington, South Washington Cascades
above 3000 feet.
* WHEN...From 7 PM this evening to 4 PM PST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
Patchy dense fog and freezing fog has developed in portions of
central and north-central Oregon as well as along the Blue
Mountain foothills. Fog is expected to persist through the night
with visibility of one-quarter mile or less in some places.
...The Flood Warning is extended for the following rivers in
Oregon...
Coquille River at Coquille affecting Coos County.
For the Coquille River...including Coquille...Minor flooding is
occurring and is also forecast.
* WHAT...Minor flooding is forecast. The river is receding and is
expected to fluctuate between 20.0 and 21.0 feet through Friday
morning. Then, additional rainfall through the weekend will cause
the river to rise again, and minor flooding is expected Friday
afternoon. The river is expected to crest near 22.9 feet late
Saturday afternoon and evening.
* WHERE...Coquille River at Coquille.
* WHEN...Until late Monday evening.
* IMPACTS...At 21.0 feet, The Coquille River is at flood stage.
Expect flooding of farmland and low-lying areas throughout the
flood plain along the Coquille River.
At 23.0 feet, Some farm buildings may be threatened and roads
covered in low areas by rising water. Expect widespread flooding
throughout the Coquille River floodplain.
* ADDITIONAL DETAILS...
- At 2:45 PM PST Wednesday the stage was 20.9 feet.
- Bankfull stage is 20.0 feet.
- Forecast...The river will oscillate around flood stage with a
maximum value of 22.9 feet late Saturday afternoon and
evening.
- Flood stage is 21.0 feet.
- Flood History...This crest compares to a previous crest of
23.0 feet on 12/30/2008.
- http://www.weather.gov/safety/flood
* WHAT...Snow. Additional snow accumulations of 1 to 4 inches,
heaviest above 4500 feet.
* WHERE...Ochoco-John Day Highlands.
* WHEN...Until 4 AM PST Thursday.
* IMPACTS...Even light snowfall amounts can accumulate on roads and
cause dangerous driving conditions due to slippery and
snow-covered roads.