Moderate snow and graupel showers will continue through the
evening commute across eastern Washington and north Idaho. Expect
changing visibilities in heavier showers as well as accumulations
mainly on grassy surfaces. Lookout Pass will see 1 to 3 inches of snow
with difficult travel through the evening.
* WHAT...Snow expected. Total snow accumulations of 2 to 6
inches. Winds gusting as high as 40 mph.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 AM PST Tuesday.
* IMPACTS...Travel could be very difficult. Patchy blowing snow
could significantly reduce visibility.
* ADDITIONAL DETAILS...Travel along I-90 and through Snoqualmie
Pass will be impacted by snow.
* WHAT...Heavy snow above 3000 feet. Additional snow accumulations
of 6 to 10 inches. Winds gusting as high as 35 mph.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 AM PST Tuesday.
* IMPACTS...Travel could be very difficult. Patchy blowing snow
could significantly reduce visibility. Travel along I-84 will be
impacted by snow.
* WHAT...Heavy snow above 1000 feet. Additional snow accumulations
of 3 to 5 inches.
* WHERE...South Washington Cascades and South Washington Cascade
Foothills.
* WHEN...Until 1 AM PST Tuesday.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Snow above 1000 feet. Additional snow accumulations of
up to two inches.
* WHERE...Willapa Hills.
* WHEN...Until 1 AM PST Tuesday.
* IMPACTS...Plan on slippery road conditions.
* WHAT...For the Winter Storm Warning, snow. Additional snow
accumulations of 3 to 5 inches. For the Winter Storm Watch,
heavy snow possible. Total snow accumulations of 20 to 30
inches possible. Winds could gust as high as 40 mph Wednesday.
* WHERE...Western Chelan County.
* WHEN...For the Winter Storm Warning, until 4 AM PST Tuesday. For
the Winter Storm Watch, from late Tuesday afternoon through
Thursday afternoon.
* IMPACTS...Travel could be very difficult at times. The
hazardous conditions could impact the morning or evening
commute.
* WHAT...Snow expected. Total snow accumulations of 6 to 9 inches
above 3000 feet. Winds gusting as high as 30 mph.
* WHERE...Northeast Blue Mountains.
* WHEN...Through 4 AM PST Tuesday.
* IMPACTS...Motorists should be prepared for winter driving
conditions especially over the mountains.
* WHAT...For the Winter Storm Warning, snow. Additional snow
accumulations of 3 to 5 inches. For the Winter Storm Watch,
heavy snow possible. Total snow accumulations of 20 to 30
inches possible. Winds could gust as high as 40 mph Wednesday.
* WHERE...Western Chelan County.
* WHEN...For the Winter Storm Warning, until 4 AM PST Tuesday. For
the Winter Storm Watch, from late Tuesday afternoon through
Thursday afternoon.
* IMPACTS...Travel could be very difficult at times. The
hazardous conditions could impact the morning or evening
commute.
ESFSEW
A strong frontal system will move across south-central British
Columbia Tuesday night through Wednesday night bringing another
round of moderate to heavy rainfall to western Washington. Storm
total rainfall amounts of 3 to 5 inches are possible across the
Olympics and Cascades with 2 to 3 inches possible across the
lowlands. Snow levels will briefly rise from below 1000 feet on
Tuesday to just above 4000 feet on Wednesday, which will contribute
to greater runoff and snowmelt contributions, particularly over the
Olympics and central Cascades. This will lead to rapid rises in
river and streams across southwestern Washington, especially through
the Skokomish, Chehalis, Skookumchuck, and Newaukum River basins. At
this time, the Skokomish River near Potlatch is the only river
forecast to enter flood stage, though there is a 35% chance for the
Newaukum River near Chehalis to enter flood stage Thursday morning.
* WHAT...Heavy snow above 1500 feet. Additional snow
accumulations of 6 to 12 inches.
* WHERE...Cascade mountains and valleys of Whatcom and Skagit
Counties, including the Mount Baker Ski Area. Cascade
mountains and valleys of Snohomish and King Counties,
including Stevens Pass, and Snoqualmie Pass. Cascade mountains
and valleys of Pierce and Lewis Counties, including the
Crystal Mountain Ski Area, Paradise on Mount Rainier.
* WHEN...Until 4 AM PST Tuesday.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Heavy snow expected. Total snow accumulations of 7 to 10
inches above 3000 feet. Winds gusting as high as 40 mph.
* WHERE...Northeast Blue Mountains.
* WHEN...Through 4 AM PST Tuesday.
* IMPACTS...Motorists should be prepared for winter driving
conditions especially over the mountains.
* WHAT...Snow expected. Expect an additional 2 to 4 inches through
4 PM today.
* WHERE...Holden Village and Stevens Pass.
* WHEN...Through 4 PM Monday afternoon.
* IMPACTS...Motorists should be prepared for winter driving
conditions especially over the Cascade Passes.
* WHAT...Heavy snow expected. Total snow accumulations of 7 to 12
inches above 3000 feet. Winds gusting as high as 35 mph.
* WHERE...Northeast Blue Mountains.
* WHEN...Through 4 AM PST Tuesday.
* IMPACTS...After a few weeks of relatively mild weather, this
storms and additional periods of heavy snow later in the week
will produce hazardous winter conditions in the mountains.
* ADDITIONAL DETAILS...
* WHAT...Heavy snow expected. Expect an additional 4 to 8 inches
through 4 PM today. Gust as high as 45 mph on ridges exposed to
west winds.
* WHERE...Holden Village and Stevens Pass.
* WHEN...Through 4 PM Monday afternoon.
* IMPACTS...Motorists should be prepared for winter driving
conditions especially over the Cascade Passes. Strong winds
could cause damage to trees and isolated power outages.
* WHAT...Snow above 1000 feet. Additional snow accumulations of 2
to 6 inches. Winds could gust as high as 40 mph, mainly on
exposed higher terrain.
* WHERE...Willapa Hills.
* WHEN...Until 1 AM PST Tuesday.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Heavy snow above 1000 feet. Additional snow
accumulations of 5 to 12 inches. Winds gusting as high as 45
mph.
* WHERE...South Washington Cascades and South Washington Cascade
Foothills.
* WHEN...Until 1 AM PST Tuesday.
* IMPACTS...Travel could be very difficult. Patchy blowing snow
could significantly reduce visibility.
* WHAT...Heavy snow above 1500 feet. Additional snow
accumulations of 6 to 12 inches.
* WHERE...Cascade mountains and valleys of Whatcom and Skagit
Counties, including the Mount Baker Ski Area. Cascade mountains
and valleys of Snohomish and King Counties, including Stevens
Pass, and Snoqualmie Pass. Cascade mountains and valleys of
Pierce and Lewis Counties, including the Crystal Mountain Ski
Area, Paradise on Mount Rainier.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Snow. Additional snow accumulations of up to two inches.
* WHERE...East Puget Sound Lowlands from Snohomish County to
Pierce County, including Arlington, Gold Bar, Duvall,
Snoqualmie, Buckley, and Eatonville.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...Highest snowfall amounts near the Cascades.
* WHAT...Heavy snow above 3000 feet. Additional snow accumulations
of 10 to 20 inches along the crests and above 4000 feet and 4
to 10 inches below 4000 feet. Winds gusting as high as 40 mph.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 AM PST Tuesday.
* IMPACTS...Travel could be very difficult to impossible.
Widespread blowing snow could significantly reduce visibility.
The hazardous conditions could impact the morning or evening
commute.
* WHAT...Heavy snow. Additional snow accumulations of 2 to 8
inches. Winds gusting as high as 40 mph.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Travel could be very difficult. Widespread blowing
snow could significantly reduce visibility. The hazardous
conditions could impact the morning commute.
