The following message is transmitted at the request of the
Wallowa Avalanche Center.
...The Wallowa Avalanche Center in La Grande OR has issued a
BACKCOUNTRY AVALANCHE WARNING...
* WHAT...Very dangerous avalanche conditions developed last night
for the Southern Wallowas. It will be very likely for a
backcountry traveler to trigger a large and deadly avalanche
today.
* WHERE...The winter recreation areas of the Southern and Northern
Wallowas, especially Halfway and Joseph, OR, Cornucopia and Salt
Creek Summit.
* WHEN...In effect from Wed 06:00 AM PST to Thu 06:00 AM PST.
* IMPACTS...Heavy snow overnight has rapidly overloaded an already
unstable snowpack, causing likely widespread natural avalanches
overnight and very likely human triggered ones through the day.
* WHAT...Snow. Additional snow accumulations between 2 and 6 inches.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...Until 4 AM PST Thursday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Snow. Additional snow accumulations between 1 and 3 inches,
highest amounts above 1000 feet.
* WHERE...Foothills of the Northern and Central Oregon Cascades,
West Columbia River Gorge of Oregon above 500 ft, and South
Washington Cascade Foothills.
* WHEN...Until 4 AM PST Thursday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Snow. Additional snow accumulations between 4 and 8 inches.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 4 AM PST Thursday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
* ADDITIONAL DETAILS...There has been a break in snow overnight, but
snow will increase in coverage and intensity during the late
morning and afternoon.
* WHAT...Snow. Additional snow accumulations between a dusting and
two inches.
* WHERE...Western and Central Columbia River Gorge and the Hood
River Valley.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy snow. Additional snow accumulations between 1 and 3
inches.
* WHERE...North and Central Coast Range Mountains of Oregon, and
Willapa Hills.
* WHEN...Until 7 PM PST this evening.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Snow. Additional snow accumulations up to one inch.
* WHERE...Portland Metro Hills.
* WHEN...Until noon PST today.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Snow. Additional snow accumulations up to one inch.
* WHERE...Clatsop County and Tillamook County Coast, North and
Central Coast Range Valleys of Oregon, South Washington Coast, and
Willapa and Wahkiakum Lowlands.
* WHEN...Until noon PST today.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
The following message is transmitted at the request of the Wallowa
Avalanche Center in Joseph, Oregon.
The Wallowa Avalanche Center in Joseph has issued a backcountry
avalanche warning.
* TIMING...In effect through 6 AM PST Thursday.
* AFFECTED AREA...This warning is in effect for the Wallowa
Mountains North.
* AVALANCHE DANGER...Very dangerous avalanche conditions exist.
Natural avalanches are likely and human-triggered avalanches are
very likely.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche
conditions. Travel in avalanche terrain is not recommended.
Avalanches may run long distances and can run into mature forests,
valley floors, or flat terrain.
For specific information on the reasoning behind this warning or
for information on recent avalanche activity, please refer to the
Wallowa Avalanche Center website at: WWW.WALLOWAAVALANCHECENTER.ORG.
You may also visit WWW.AVALANCHE.ORG for the latest avalanche
information nationwide.
* WHAT...Snow. Additional snow accumulations between 4 and 8 inches.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 4 AM PST Thursday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
* ADDITIONAL DETAILS...There has been a break in snow overnight, but
snow will increase in coverage and intensity during the lat
morning and afternoon.
* WHAT...Snow. Additional snow accumulations up to one inch with
total accumulations of 3 to 5 inches. Winds gusting as high as 30
mph will cause blowing and drifting of snow.
* WHERE...Grande Ronde Valley.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Even light snowfall amounts can accumulate on roads and
cause dangerous driving conditions due to slippery and
snow-covered roads.
* WHAT...Snow. Additional snow accumulations up to one inch with
total accumulations of 5 to 8 inches.
* WHERE...Blue Mountains of Oregon and Washington.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Heavy snow. Additional snow accumulations up to one inch
with total accumulations of 3 to 4 inches.
* WHERE...In Oregon, Foothills of the Northern Blue Mountains of
Oregon. In Washington, Foothills of the Blue Mountains of
Washington.
* WHEN...Until 10 AM PST this morning.
* 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
Wednesday morning commute.
* WHAT...Heavy snow. Additional snow accumulations up to three
inches with total accumulation of 10 to 15 inches for most of the
area.
* WHERE...Wallowa County.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Snow expected. Total snow accumulations between 3 and 9
inches and locally heavier amounts of 12 to 16 inches near Crater
Lake, Diamond Lake, and over higher mountains.
* WHERE...Eastern Douglas County Foothills and South Central Oregon
Cascades, including Steamboat, Toketee Falls, Union Creek, Diamond
Lake, Crater Lake. This also includes portions of Highways 138,
230 and 62.
* WHEN...Until 10 AM PST Thursday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Wednesday morning and
evening commutes.
* WHAT...For the Winter Storm Warning, heavy snow expected. Total
snow accumulations between 5 and 12 inches with up to 18 inches
over higher mountains. For the Winter Weather Advisory, snow
expected in valleys. Total snow accumulations between 1 and 4
inches.
* WHERE...For the Winter Weather Advisory, valleys in Eastern Curry
County and Josephine County including Cave Junction and Grants
Pass. This includes Highways 199, 238 and I-5. For the Winter
Storm Warning, higher terrain above 1500 feet including the
Kalmiopsis Wilderness.
* WHEN...For the Winter Storm Warning, until 7 AM PST Thursday. For
the Winter Weather Advisory, until 10 AM PST Thursday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Wednesday morning and
evening commutes.
* WHAT...For the Winter Storm Warning, heavy snow expected. Total
snow accumulations between 5 and 12 inches with up to 18 inches
over higher mountains. For the Winter Weather Advisory, snow
expected in valleys. Total snow accumulations between 1 and 4
inches.
* WHERE...For the Winter Weather Advisory, valleys in Eastern Curry
County and Josephine County including Cave Junction and Grants
Pass. This includes Highways 199, 238 and I-5. For the Winter
Storm Warning, higher terrain above 1500 feet including the
Kalmiopsis Wilderness.
* WHEN...For the Winter Storm Warning, until 7 AM PST Thursday. For
the Winter Weather Advisory, until 10 AM PST Thursday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Wednesday morning and
evening commutes.
* WHAT...For the Winter Weather Advisory, snow. Additional snow
accumulations between 1 and 4 inches, for valley locations. For
the Winter Storm Warning, heavy snow expected, mainly above 1500
feet elevation for the mountains west of I-5. Total snow
accumulations between 4 and 8 inches with up to 12 inches over
higher mountains. Periods of locally heavy snow may also occur
late this morning and this afternoon over the passes along I-5
between Sexton Summit and Canyon Mountain Pass.
* WHERE...Central Douglas County. For the Winter Weather Advisory,
the lower elevations including Highways 38, 138, 42 and I-5
including Roseburg, Sutherlin, Elkton, Camas Valley, Canyonville
and Glendale. For the Winter Storm Warning, higher elevations west
of I-5.
* WHEN...For the Winter Storm Warning, until 7 AM PST Thursday. For
the Winter Weather Advisory, until noon PST today.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Wednesday morning and
evening commutes.
* WHAT...Snow expected. Total snow accumulations 2 to 4 inches.
* WHERE...Northern portions of the Klamath Basin, north of
Chiloquin, and Northern and Eastern Klamath County and Western
Lake County. This includes Crescent and Chemult. This also
includes Highway 97 north of Chiloquin, Highway 31 northwest of
Silver Lake and higher portions of Highway 140 east of Bly.
* WHEN...From noon today to 10 PM PST this evening.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Wednesday evening commute.
* ADDITIONAL DETAILS...Snow showers are expected to develop during
the early to mid afternoon and continue during the evening.
* WHAT...Snow expected. Total snow accumulations between 4 and 6
inches above 4500 feet elevation. Lighter snowfall of 2 to 4
inches expected below 4500 feet elevation, including for I-5 at
Siskiyou Summit.
* WHERE...Siskiyou Mountains and Southern Oregon Cascades above 4500
feet. This includes Highway 62, Lake of the Woods and Mount
Ashland Ski Resort.
* WHEN...From noon today to 10 PM PST this evening.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Wednesday evening commute.
* ADDITIONAL DETAILS...Snow showers are expected to develop during
the early to mid afternoon and continue into the evening.
