Patchy dense fog was occurring across the Blue Mountain foothills
this evening. The fog was reducing visibilities to one quarter mile
in some areas. If you encounter dense fog, slow down, use low
beam headlights and allow extra space between your vehicle and
those around you.
* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected.
* WHERE...Lake County and eastern Klamath County, and Central
Siskiyou County. Including the cities of Weed, Silver Lake, Summer
Lake, and Lakeview.
* WHEN...From 10 PM this evening to 1 PM PST Friday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Strongest winds are expected along I-5 in the
southern Shasta Valley near Weed. Also, along highway 31 between
Summer Lake and Silver Lake.
* WHAT...Freezing rain expected. Total ice accumulations of one to
two tenths of an inch.
* WHERE...Foothills of the Southern Blue Mountains of Oregon and
North Central Oregon.
* WHEN...Until 4 PM PST Friday.
* IMPACTS...Difficult travel conditions are possible. The hazardous
conditions could impact the Thursday evening and Friday morning
commutes.
* 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...Until 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. 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
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 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...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.
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.
* WHAT...Wet snow. Additional snow accumulations 1 to 3 inches.
Winds gusting as high as 40 mph.
* WHERE...The southern Oregon Cascades Mountains above 4000 feet
elevation. This includes portions of Highway 62, Crater Lake,
Highway 138 near Diamond Lake, Highway 140 near Lake of the Woods,
and higher portions of Highway 66.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Snow levels will gradually rise Wednesday
afternoon to 5000 feet.
...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
occurring and is also forecast.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
The river is receding and should fall below flood stage by
tomorrow morning at the latest.
Then, additional rainfall through the weekend will cause river rises
again, and minor flooding will be possible once again beginning as
early as Friday afternoon. The secondary crest is forecast to be
22.5 feet on Saturday afternoon.
* WHERE...Coquille River at Coquille.
* WHEN...Until tomorrow morning. An additional flood warning may be
needed for Friday afternoon through this weekend.
* 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 8:45 AM PST Wednesday the stage was 21.6 feet.
- Bankfull stage is 20.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 AM PST Wednesday was 23.2 feet.
- Forecast...The river will gradually recede through Thursday
afternoon before rising again to minor flood stage with a
maximum value of 22.5 feet early Saturday afternoon.
- Flood stage is 21.0 feet.
- Flood History...This crest compares to a previous crest of
22.4 feet on 02/19/1983.
- http://www.weather.gov/safety/flood
Patchy dense fog has formed in and around the Pendleton airport,
Walla Walla airport, and along the Interstate 84 corridor between
Pendleton and Boardman. Visibilities of on quarter mile or less
are occurring and expected to linger through much of the morning,
likely dissipating between 11 AM and noon. Motorists are urged to
use caution as visibilities could change quickly.
* WHAT...Snow expected above 2000 feet. Total snow accumulations 4
to 8 inches on the main passes, with an inch possible as low as
2000 feet. Higher amounts likely on the higher peaks and ridges
above 5000 feet.
* WHERE...In Oregon, North Oregon Cascades. In Washington, South
Washington Cascades.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Roads and bridges will likely become slick and
snowpacked.
* WHAT...Snow expected. Total snow accumulations 6 to 10 inches,
with 1 to 2 inches possible down to 3000 feet. Accumulations of a
foot or more are possible on the higher peaks and ridges above
5000 feet.
* WHERE...Cascades of Lane County and Cascades of Marion and Linn
Counties.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Roads and especially bridges will likely become slick
and snowpacked.
* ADDITIONAL DETAILS...Snowfall accumulation will vary based on
elevation and exposure to wind, with the highest snow amounts
expected above 5500 feet.
* WHAT...Snow expected. Total snow accumulations between 5 and 10
inches, with higher amounts up to 15 inches above 5500 feet. Winds
gusting as high as 45 mph over exposed higher terrain.
* WHERE...The southern Oregon Cascades Mountains above 4000 feet
elevation. This includes portions of Highway 62, Crater Lake,
Highway 138 near Diamond Lake, Highway 140 near Lake of the Woods,
and higher portions of Highway 66.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Snow levels will start out around 3500 to
4000 feet then gradually rise Wednesday afternoon to 5000 feet.
