* WHAT...Cold wind chills ("feels like") as low as 10 to 20 degrees
fahrenheit expected.
* WHERE...Greater Portland/Vancouver Metro, Northern and Central
Cascades and Foothills in Oregon, Central and Southern Willamette
Valley, South Washington and North and Central Oregon Coast,
Northern and Central Coast Range Valleys and Mountains of Oregon,
Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum
Counties, Lower Columbia River and Cowlitz River Valleys, and
South Washington Cascades and Foothills.
* WHEN...For the first Cold Weather Advisory, from 7 PM this evening
to noon PST Wednesday. For the second Cold Weather Advisory, from
7 PM Wednesday to noon PST Thursday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures can lead
to hypothermia with prolonged exposure. Wind chill values can lead
to hypothermia with prolonged exposure.
* WHAT...Snow expected. Total snow accumulations between 4 and 12
inches. Winds gusting as high as 50 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...From 1 AM Thursday to 1 PM PST Friday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Thursday morning and evening
commutes. Gusty winds could bring down tree branches.
* ADDITIONAL DETAILS...Heaviest snowfall accumulations are expected
near Diamond Lake and Crater Lake, especially Thursday morning and
again Thursday evening through Friday morning.
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches. Winds gusting as high as 45 mph.
* WHERE...Klamath County and Western Lake County, including areas
from Modoc Point northward and areas east of Klamath Falls. This
includes the communities of Chemult, Chiloquin, Beatty, and Bly.
This also includes portions of Highway 97, 140, 66, and 31.
* WHEN...From 1 AM to 2 PM PST Thursday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Thursday morning commute. Gusty winds
could bring down tree branches.
* ADDITIONAL DETAILS...Snow levels will rise from valley floors
early Thursday to around 4500 feet Thursday afternoon. Moderate
snow is likely in the morning on Thursday, then expect some
continued snow across higher terrain in the afternoon. Then, light
snow showers are expected Thursday night and Friday with snow
levels between 4000 and 5000 feet.
* WHAT...Wet snow expected above 1500 feet elevation. Total snow
accumulations up to one inch. Winds gusting as high as 20 mph in
valleys and 40 mph over mountains. Lighter snow of a half inch or
less is possible for elevations below 1500 feet elevation.
* WHERE...This includes portions of the Illinois Valley, lower
passes along Interstate 5 north of Grants pass and mountains in
Josephine and eastern Curry counties.
* WHEN...From 10 PM Wednesday to 8 AM PST Thursday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Thursday morning commute.
* ADDITIONAL DETAILS...Snow levels are expected to start out around
1000 feet Wednesday night then rise early Thursday morning to
around 1500 to 2500 feet, before rising higher to 4000 feet late
Thursday morning. A period of light to moderate snow is expected,
then transitioning to rain for most areas by late Thursday
morning. As snow transitions to rain, may see a brief wintery mix
with ice pellets.
* WHAT...Heavy snow possible. Total snow accumulations between 3 and
6 inches possible in the valleys and 6 to 12 inches possible in
the mountains. Winds could gust as high as 35 mph causing areas of
blowing and drifting snow.
* WHERE...Portions of south central, southwest, and west central
Idaho and northeast and southeast Oregon.
* WHEN...From late Wednesday night through Friday morning.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult.
The hazardous conditions could impact the Thursday morning and
evening commutes.
* WHAT...For the Cold Weather Advisory, very cold temperatures of 13
to 23 degrees. For the Wind Advisory, southeast winds 20 to 30 mph
with gusts up to 45 mph expected.
* WHERE...For the Cold Weather Advisory, Jackson County, including
the communities of Rogue River, Central Point, Medford, Ashland,
Jacksonville, Shady Cove, Eagle Point and surrounding areas. For
the Wind Advisory, this includes areas south of Medford, including
Phoenix, Talent, Ashland and surround foothills.
* WHEN...For the Cold Weather Advisory, until 9 AM PST Wednesday.
For the Wind Advisory, from 10 PM Wednesday to 9 AM PST Thursday.
* IMPACTS...Very cold temperatures can lead to hypothermia with
prolonged exposure. Gusty winds will blow around unsecured
objects. Tree limbs could be blown down and a few power outages
may result.
* WHAT...For the Cold Weather Advisory, very cold temperatures of 13
to 23 degrees. For the Wind Advisory, southeast winds 20 to 30 mph
with gusts up to 45 mph expected.
* WHERE...For the Cold Weather Advisory, Jackson County, including
the communities of Rogue River, Central Point, Medford, Ashland,
Jacksonville, Shady Cove, Eagle Point and surrounding areas. For
the Wind Advisory, this includes areas south of Medford, including
Phoenix, Talent, Ashland and surround foothills.
* WHEN...For the Cold Weather Advisory, until 9 AM PST Wednesday.
For the Wind Advisory, from 10 PM Wednesday to 9 AM PST Thursday.
* IMPACTS...Very cold temperatures can lead to hypothermia with
prolonged exposure. Gusty winds will blow around unsecured
objects. Tree limbs could be blown down and a few power outages
may result.
* WHAT...Sub-freezing temperatures as low as 30 expected.
* WHERE...Portions of the Curry County Coast. This includes
Brookings and Gold Beach.
* WHEN...From 10 PM this evening to 9 AM PST Wednesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...Very cold temperatures with morning lows around 10 degrees
to minus 10 degrees will be common, except in the lower Klamath
River Valley where low temperatures of 13 to 20 are expected.
* WHERE...Siskiyou County and Modoc County, including the
communities of Alturas, Newell, MacDoel, Tennant, Mount Shasta
City Etna, Happy Camp and surrounding areas.
* WHEN...Until 9 AM PST Wednesday.
* IMPACTS...Very cold temperatures can lead to hypothermia with
prolonged exposure.
* WHAT...For the Freeze Warnings, sub-freezing temperatures as low
as 23 to 30 degrees. For the Cold Weather Advisories, very cold
temperatures and wind chills as low as 20 to 26 degrees expected.
* WHERE...For the Freeze Warnings, communities along the immediate
coast including Port Orford, North Bend, Bandon and Reedsport. For
the Cold Weather Advisory, this includes locations in the Freeze
Warning, as well as inland locations such as Coquille, Myrtle
Point and Powers.
* WHEN...From 10 PM this evening to 9 AM PST Wednesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...Very cold temperatures with morning lows around 12 degrees
to 23 degrees.
* WHERE...Central and eastern Douglas County, Eastern Curry County
and Josephine County. This includes the communities of Grants
Pass, Cave Junction, Canyonville, Roseburg, Winston, Sutherlin,
Steamboat and surrounding areas.
* WHEN...Until 9 AM PST Wednesday.
* IMPACTS...Very cold temperatures can lead to hypothermia with
prolonged exposure.
* WHAT...For the Freeze Warnings, sub-freezing temperatures as low
as 23 to 30 degrees. For the Cold Weather Advisories, very cold
temperatures and wind chills as low as 20 to 26 degrees expected.
* WHERE...For the Freeze Warnings, communities along the immediate
coast including Port Orford, North Bend, Bandon and Reedsport. For
the Cold Weather Advisory, this includes locations in the Freeze
Warning, as well as inland locations such as Coquille, Myrtle
Point and Powers.
* WHEN...From 10 PM this evening to 9 AM PST Wednesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...Very cold temperatures as low as 25 below zero in the
higher Idaho basins, 15 below in eastern Oregon, 5 below zero in
the Idaho valleys. Wednesday morning will be the coldest period.
* WHERE...Portions of south central, southwest, and west central
Idaho and southeast Oregon.
* WHEN...Until 10 AM MST Thursday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures can lead
to hypothermia with prolonged exposure.
* WHAT...Very cold temperatures as low as 15 below zero. Wednesday
morning will be the coldest period.
* WHERE...Baker County, Harney County, and Malheur County.
* WHEN...Until 9 AM PST /10 AM MST/ Thursday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures can lead
to hypothermia with prolonged exposure.
* WHAT...Very cold temperatures as low as 15 below expected.
* WHERE...Blue Mountains of Oregon and Washington, Grande Ronde
Valley, Wallowa County, Ochoco-John Day Highlands, East Slopes of
the Oregon Cascades, Central Oregon, and Upper Slopes of the
Eastern Washington Cascades Crest.
* WHEN...Until 7 AM PST Thursday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures can lead
to hypothermia with prolonged exposure.
* WHAT...Very cold temperatures as low as 24 below.
* WHERE...Portions of south central, southwest, and west central
Idaho and southeast Oregon.
* WHEN...Until 10 AM MST Thursday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures can lead
to hypothermia with prolonged exposure.
* WHAT...Very cold temperatures as low as 17 below.
* WHERE...Baker County, Harney County, and Malheur County.
* WHEN...Until 9 AM PST /10 AM MST/ Thursday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures can lead
to hypothermia with prolonged exposure.
* WHAT...For the first Cold Weather Advisory, very cold temperatures
as low as zero to 10 below expected. For the second Cold Weather
Advisory, very cold temperatures as low as zero to 10 below
expected.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...For the first Cold Weather Advisory, until noon PST today.
For the second Cold Weather Advisory, from 7 PM this evening to
noon PST Wednesday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Wind chill values can lead to
hypothermia with prolonged exposure. Very cold temperatures can
lead to hypothermia with prolonged exposure.
* WHAT...For the Cold Weather Advisory, very cold temperatures as
low as 5 to 10 15 expected. For the Extreme Cold Watch,
dangerously cold wind chills as low as 5 to 10 degrees possible.
* WHERE...Eastern Portland/Vancouver Metro, Foothills of the
Northern and Central Oregon Cascades, North Oregon Coast Range
Lowlands, North Oregon Coast Range, Willapa Hills, and South
Washington Cascade Foothills.
* WHEN...For the Cold Weather Advisory, until noon PST today. For
the Extreme Cold Watch, from this evening through Wednesday
morning.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures can lead
to hypothermia with prolonged exposure.
* ADDITIONAL DETAILS...The lowest wind chills will occur around the
west end of the Columbia River Gorge Tuesday night into Wednesday
morning.
* WHAT...For the Cold Weather Advisory, very cold temperatures as
low as 1 above. For the Extreme Cold Watch, dangerously cold wind
chills as low as zero possible.
* WHERE...West Columbia River Gorge of Oregon above 500 ft.
* WHEN...For the Cold Weather Advisory, until noon PST today. For
the Extreme Cold Watch, from this evening through Wednesday
morning.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Wind chill values can lead to
hypothermia with prolonged exposure. Very cold temperatures can
lead to hypothermia with prolonged exposure.
