AVWPQR
The following message is transmitted at the request of the
Northwest Avalanche Center.
...The Northwest Avalanche Center in Seattle has issued an
Avalanche Warning...
* WHAT...Very dangerous avalanche conditions are expected as rain
and heavy wet snow overload a dry snowpack. Very large
avalanches are expected and may descend to lower elevations,
including openings down in the forest.
* WHERE...The west slopes of the Washington Cascades, Passes, and
Mt. Hood. Including areas near Mt. Baker, the Mountain Loop
Hwy, Stevens Pass, Snoqualmie Pass, Mt. Rainier, White Pass, Mt.
Saint Helens, and Mt. Hood.
* WHEN...In effect from Sat. 18:30 PDT to Sun 18:30 PDT.
* IMPACTS...Very large natural avalanches will be large enough to
bury, injure, and kill a person. Some may be large enough to
break trees and travel to lower elevations.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Avoid all areas where
avalanches can start, run, or stop. This includes openings in
the forest well below large steep alpine slopes.
Consult https://www.nwac.us/ or www.avalanche.org for more
detailed information.
Similar avalanche danger may exist at locations outside the
coverage area of this or any avalanche center.
AVWSEW
The following message is transmitted at the request of the
Northwest Avalanche Center.
...The Northwest Avalanche Center in Seattle has issued an
Avalanche Warning...
* WHAT...Very dangerous avalanche conditions are expected as rain
and heavy wet snow overload a dry snowpack. Very large
avalanches are expected and may descend to lower elevations,
including openings down in the forest.
* WHERE...The west slopes of the Washington Cascades, Passes, and
Mt. Hood. Including areas near Mt. Baker, the Mountain Loop
Hwy, Stevens Pass, Snoqualmie Pass, Mt. Rainier, White Pass, Mt.
Saint Helens, and Mt. Hood.
* WHEN...In effect from Sat. 18:30 PDT to Sun 18:30 PDT.
* IMPACTS...Very large natural avalanches will be large enough to
bury, injure, and kill a person. Some may be large enough to
break trees and travel to lower elevations.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Avoid all areas where
avalanches can start, run, or stop. This includes openings in
the forest well below large steep alpine slopes.
Consult https://www.nwac.us/ or www.avalanche.org for more
detailed information.
Similar avalanche danger may exist at locations outside the
coverage area of this or any avalanche center.
ESFSEW
An atmospheric river Sunday through Monday will bring heavy rain at
times, especially for the mountains. Total precipitation amounts in
the mountains will range from 3 to 6 inches, with locally heavier
amounts possible. Snow levels will also rise to near 7500 feet
during this period. This will result in sharp rises on rivers with
flooding possible.
Heavy rain with rising snow levels over the south slopes of the
Olympics beginning Sunday could cause the Skokomish River in Mason
county to go over flood stage beginning Sunday evening.
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of northwest Washington, including the following
county, Mason.
* WHEN...From Sunday evening through Tuesday evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Heavy rain over the south slopes of the Olympics Sunday into
Monday. Snow levels near 7500 feet.
- http://www.weather.gov/safety/flood
* WHAT...Snow expected. Total snow accumulations between 5 to 10
inches.
* WHERE...Cascades of Snohomish and Northern King Counties and
Cascades of Whatcom and Skagit Counties.
* WHEN...From 11 PM this evening to 11 AM PDT Sunday.
* IMPACTS...Travel could be very difficult.
* WHAT...Snow expected. Total snow accumulations between 6 and 10
inches for locations above 3000 feet.
* WHERE...Stevens Pass and Holden Village.
* WHEN...From 11 PM this evening to 11 AM PDT Sunday.
* IMPACTS...Expect winter travel conditions over Stevens Pass.
* ADDITIONAL DETAILS...Snowfall rates of 1 to 2 inches per hour over
Stevens Pass expected late Saturday night through Sunday morning.
Heavy rain with rising snow levels over the south slopes of the
Olympics beginning Sunday could cause the Skokomish River in Mason
county to go over flood stage beginning Sunday evening.
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...A portion of northwest Washington, including the following
county, Mason.
* WHEN...From Sunday evening through Tuesday evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Heavy rain over the south slopes of the Olympics Sunday into
Monday. Snow levels near 7000 feet.
- http://www.weather.gov/safety/flood
* WHAT...Snow above 4000 feet. Additional snow accumulations up to 3
inches. Winds gusting as high as 35 mph.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...Until 5 AM PDT early this morning.
* IMPACTS...Roads, bridges and overpasses will be slick and
hazardous.
* ADDITIONAL DETAILS...Winter driving conditions will remain in
place for the Cascade passes through Friday night due to a
combination of snow covered roads and reduced visibilities in
periods of falling snow.
* WHAT...Heavy snow. Between 11 PM Friday and 5 AM Saturday,
additional snow accumulations between 4 and 8 inches. Winds
gusting as high as 35 mph.
* WHERE...Stevens Pass.
* WHEN...Until 5 AM PDT Saturday.
* IMPACTS...Motorists should anticipate winter driving conditions
overnight into Saturday morning over Stevens Pass.
* ADDITIONAL DETAILS...Snow rates of 1 inch per hour are possible at
times over Stevens Pass through 1 AM PDT Saturday.
* WHAT...Snow above 2500 feet. Additional snow accumulations between
2 and 5 inches. Winds gusting as high as 45 mph.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 5 AM PDT Saturday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. Gusty winds could bring down tree branches.
* WHAT...Snow above 4000 feet. Additional snow accumulations up to 5
inches. Winds gusting as high as 45 mph.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 5 AM PDT Saturday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. Gusty winds could bring down tree branches.
ESFSEW
Heavy precipitation is expected to begin Saturday night and continue
through early Monday. In addition, snow levels will rise to 6500 to
7500 feet Sunday through Monday. This will result in sharp rises on
the Skokomish River in Mason County with flooding possible.
* WHAT...Heavy snow. Additional snow accumulations between 2 and 13
inches. Winds gusting as high as 35 mph.
* WHERE...Stevens Pass and Holden Village.
* WHEN...Until 5 AM PDT Saturday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Friday evening commute.
* ADDITIONAL DETAILS...Snow rates of 1 inch per hour are possible at
times over Stevens Pass between 5 PM PDT Friday and 1 AM PDT
Saturday.
* WHAT...Snow. Additional snow accumulations of 4 to 10 inches.
* WHERE...Cascades of Pierce and Lewis Counties and Cascades of
Southern King County.
* WHEN...Until 5 AM PDT Saturday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* WHAT...Heavy snow. Additional snow accumulations of 4 to 14 inches.
* WHERE...Cascades of Snohomish and Northern King Counties and
Cascades of Whatcom and Skagit Counties.
* WHEN...Until 5 AM PDT Saturday.
* IMPACTS...Roads, especially bridges and overpasses, will likely
become slick and hazardous. Travel could be very difficult to
impossible.
* WHAT...Snow. Additional snow accumulations between 6 and 12
inches. Winds gusting as high as 40 mph.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 5 AM PDT Saturday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions. Gusty winds
could bring down tree branches.
* WHAT...Wet snow. Additional snow accumulations between 5 and 10
inches. Winds gusting as high as 40 mph.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 11 PM PDT this evening.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. Gusty winds could bring down tree branches.
* WHAT...Wet snow above 4000 feet. Additional snow accumulations of
4 to 8 inches. Winds gusting as high as 35 mph.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...Until 5 AM PDT Saturday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Lowering snow levels and cooling temperatures
Friday evening and Friday night will result in deteriorating
travel conditions across the Cascade passes tonight.
* WHAT...Snow expected. Total snow accumulations between 6 and 10
inches. Winds gusting as high as 40 mph.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...From 11 AM this morning to 5 AM PDT Saturday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions. Gusty winds
could bring down tree branches.
* WHAT...Wet snow expected. Total snow accumulations of 6 to 10
inches. Winds gusting as high as 40 mph.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...From 11 AM this morning to 11 PM PDT this evening.
* IMPACTS...Plan on slippery road conditions. Gusty winds could
bring down tree branches.
