Areas of freezing fog will continue along along the Blue Mountain
Foothills and the Oregon side of the Lower Columbia Basin through
the early morning on New Years. The visibility of one quarter
mile or less will be observed in some locations. A weather system
bringing rain will arrive after midnight and will allow the fog
to lift for most location. Motorists are urged to use caution as
there will be a sudden reduction in the visibility as well as icy
spots on the roadways. Happy New Year and be careful while
traveling on the roads this evening.
...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 occurring and minor flooding is forecast.
* WHERE...Coquille River at Coquille.
* WHEN...Until Thursday morning.
* 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 PM PST Tuesday the stage was 22.6 feet.
- Bankfull stage is 20.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 PM PST Tuesday was 23.7 feet.
- Forecast...The river will oscillate around flood stage with a
maximum value of 22.6 feet late this evening.
- 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
* WHAT...Snow expected. Total snow accumulations between 3 and 6
inches.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 4 PM PST Wednesday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
* ADDITIONAL DETAILS...The heaviest snow will be along US-20 through
Santiam Pass, with lesser amounts elsewhere.
Patchy dense fog has formed along the Blue Mountain Foothills,
including the Walla Walla Airport and along Highway 11 near Athena
and Weston. The visibility is one quarter mile or less and is
expected to linger through the evening hours. Motorists are urged
to use caution as there will be a sudden reduction in the
visibility. Happy New Year and be careful while traveling on the
roads this evening.
...The Flood Warning continues for the following rivers in Oregon...
Coquille River at Coquille affecting Coos County.
For the Coquille River...including Coquille...Moderate flooding is
forecast.
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Coquille River at Coquille.
* WHEN...Until Thursday morning.
* 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 12:45 PM PST Tuesday the stage was 23.1 feet.
- Bankfull stage is 20.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 12:45 PM PST Tuesday was 23.9 feet.
- Forecast...The river will oscillate around flood stage with a
maximum value of 23.0 feet this afternoon.
- Flood stage is 21.0 feet.
- Flood History...This crest compares to a previous crest of
23.1 feet on 11/22/1998.
- http://www.weather.gov/safety/flood
* WHAT...Snow expected. Total snow accumulations between 3 and 8
inches.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 4 PM PST Wednesday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
* ADDITIONAL DETAILS...The heaviest snow will be along US-20 through
Santiam Pass, with lesser amounts elsewhere.
* WHAT...Snow expected. Total snow accumulations one to two inches.
* WHERE...Treasure Valley Zones.
* WHEN...From midnight tonight to noon MST Wednesday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Plan on slippery road
conditions. The hazardous conditions could impact the Wednesday
morning commute.
* 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...From 4 PM this afternoon to 4 PM PST Wednesday.
* IMPACTS...Roads and especially bridges will likely become slick
and snowpacked.
* 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...From 4 PM this afternoon to 4 PM PST Wednesday.
* IMPACTS...Roads and bridges will likely become slick and
snowpacked.
* WHAT...Snow expected. Total snow accumulations between 5 and 10
inches, with higher amounts up to 12 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...From 4 PM this afternoon to 4 PM PST Wednesday.
* 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.
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches. Winds gusting as high as 40 mph.
* WHERE...Elevations above 4500 feet in the Klamath Basin and
Northern and Eastern Klamath County and Western Lake County
Counties. This includes portions of Highway 97 north of Modoc
Point, and Highway 140 east of Dairy.
* WHEN...From 7 PM this evening to noon PST Wednesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Wednesday morning commute.
* WHAT...Areas of dense fog, with visibility one quarter mile or
less in dense fog.
* WHERE...South Willamette Valley.
* WHEN...Until noon PST today.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Areas of fog, with visibility one quarter mile or less in
dense fog.
* WHERE...Central Willamette Valley.
* WHEN...Until noon PST today.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Visibility one quarter mile or less in freezing fog.
* WHERE...Grande Ronde Valley.
* WHEN...Until noon PST today.
* IMPACTS...Low visibility could make driving conditions hazardous.
Additionally, temperatures below freezing could make for slick
spots on road surfaces and sidewalks.
Patchy dense fog has formed in areas of the Gorge and across the
Lower Columbia Basin of Oregon, primarily along the I-84 corridor.
Visibilities of one quarter mile or less are occurring and
expected to linger through much of the morning, likely dissipating
by noon. Current temperatures are hovering around freezing, so
roadways may have spots of ice that may impact travel. Motorists
are urged to use caution as visibilities could change quickly.
* WHAT...Snow expected. Total snow accumulations between 3 and 8
inches.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...From 4 PM this afternoon to 4 PM PST Wednesday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
* ADDITIONAL DETAILS...The heaviest snow will be along US-20 through
Santiam Pass, with lesser amounts elsewhere.
* WHAT...Snow expected above 4000 feet. Total snow accumulations up
to 6 to 11 inches. Locally higher amounts possible.
* WHERE...Cascades of Lane County and Cascades of Marion and Linn
Counties.
* WHEN...From 4 PM this afternoon to 4 PM PST Wednesday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Snowfall accumulation will vary based on
elevation and exposure to wind, with the highest snow amounts
expected above 5500 feet. The Cascade passes will see impacts from
periods of heavy snow, especially Tuesday evening and overnight
when snowfall rates are expected to peak between around 1 inch per
hour.
* WHAT...Snow expected. Total snow accumulations between 5 and 10
inches, with higher amounts up to 13 inches above 5500 feet
elevation. Winds gusting as high as 40 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...From 4 PM this afternoon to 4 PM PST Wednesday.
* IMPACTS...Roads 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.
* WHAT...Snow expected. Total snow accumulations between 2 and 5
inches. Winds gusting as high as 35 mph.
* WHERE...Elevations above 4500 feet in the Klamath Basin and
Northern and Eastern Klamath County and Western Lake County
Counties. This includes portions of Highway 97 between Modoc Point
and Crescent, and Highway 140 between Dairy and Lakeview.
* WHEN...From 7 PM this evening to noon PST Wednesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Wednesday morning commute.
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...South Willamette Valley.
* WHEN...Until 11 AM PST Tuesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
