* WHAT...Snow. Additional snow accumulations up to 4 inches.
* WHERE...Highway 20 Wauconda Summit, Sherman Pass, Boulder Creek
Road, and Chesaw Road.
* WHEN...Until 11 AM PDT Tuesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Tuesday morning commute.
* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph
expected.
* WHERE...Elevated terrain in central and eastern Lake County.
Affected highways include Highway 395, Oregon Highway 140 and
Highway 31 between Summer Lake and Paisley.
* WHEN...Until 5 PM PDT Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Snow above 3000 feet. Additional snow accumulations of 6
to 12 inches, highest above 4000 feet. Winds gusting as high as
40 mph Tuesday on exposed ridges.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the commute.
* WHAT...Snow above 4000 feet. Additional snow accumulations of 6
to 12 inches, highest above 4500 feet. Winds gusting as high as
40 mph on exposed ridges.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the commute.
* ADDITIONAL DETAILS...Lower snow totals of 1 to 2 inches
forecast from 4000 to 4500 feet along the US-97 corridor between
Bend and La Pine.
A strong front will bring heavy rainfall to lower elevations of the
Olympics this evening into early Tuesday morning increasing the
potential for flooding on the Skokomish River in Mason County.
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of northwest Washington, including the following
county, Mason.
* WHEN...Through Tuesday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Heavy rain will continue over the south slopes of the
Olympics this evening through Tuesday morning which could
push the Skokomish River above flood stage as early as later
tonight.
- http://www.weather.gov/safety/flood
* WHAT...Snow expected above 3000 ft. Total snow accumulation 5 to
10 inches above 3000 ft with heavier accumulations of 12 to 18
inches above 4000 ft.
* WHERE...Holden Village and Stevens Pass.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact travel Tuesday morning.
* ADDITIONAL DETAILS...A period of 1 inch per hour of snowfall
between 5 pm and 9 pm Tuesday (25% chance).
* WHAT...Southeast winds 30 to 40 mph with gusts up to 50 mph
expected.
* WHERE...San Juan County, Western Whatcom County, Western
Skagit County and Admiralty Inlet Area.
* WHEN...Until 2 AM PDT Tuesday.
* IMPACTS...Gusty winds could blow around unsecured objects.
Tree limbs could be blown down and a few power outages may
result.
* WHAT...South winds 25 to 35 mph with gusts up to 50 mph.
* WHERE...North Coast and Central Coast.
* WHEN...Until 11 PM PDT this evening.
* IMPACTS...Gusty winds could blow around unsecured objects.
Tree limbs could be blown down and a few power outages may
result.
* WHAT...Heavy snow above 3000 feet. Additional snow accumulations
of 15 to 25 inches. Winds gusting as high as 40 mph.
* WHERE...Cascade mountains of Whatcom and Skagit Counties,
including the Mount Baker Ski Area.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...Travel could be very difficult.
* WHAT...Snow above 3000 feet. Additional snow accumulations of 5
to 15 inches.
* WHERE...Cascade mountains of Snohomish and King Counties,
including Stevens Pass and Snoqualmie Pass.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...Travel could be very difficult.
* WHAT...Snow above 3000 feet. Additional snow accumulations of 10
to 20 inches. Winds gusting as high as 50 mph.
* WHERE...Cascade mountains of Pierce and Lewis Counties,
including the Crystal Mountain Ski Area, Paradise on Mount
Rainier.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...Travel could be very difficult. Gusty winds could
bring down tree branches.
* WHAT...Snow above 3000 feet. Additional snow accumulations of 8
to 12 inches. Winds gusting as high as 60 mph.
* WHERE...Olympic mountains including Hurricane Ridge.
* WHEN...Until 5 PM PDT Tuesday.
* IMPACTS...Travel could be very difficult. Strong winds could
cause tree damage.
* WHAT...Snow above 2500 feet. Additional snow accumulations of 6
to 10 inches, except 12 to 18 inches above 3500 ft. Winds
gusting as high as 45 mph.
* WHERE...In Oregon, North Oregon Cascades. In Washington, South
Washington Cascades.
* WHEN...Until 6 PM PDT Tuesday.
* IMPACTS...Travel could be very difficult. The hazardous
conditions could impact the morning or evening commute.
* ADDITIONAL DETAILS...Snow levels will hold around 3000 to 3500
feet today into this evening, then lower to 2500 feet Monday
night.
* WHAT...Snow above 2500 feet. Additional snow accumulations of 6
to 10 inches, except 12 to 18 inches above 3500 ft. Winds
gusting as high as 45 mph.
* WHERE...In Oregon, North Oregon Cascades. In Washington, South
Washington Cascades.
* WHEN...Until 6 PM PDT Tuesday.
* IMPACTS...Travel could be very difficult. The hazardous
conditions could impact the morning or evening commute.
* ADDITIONAL DETAILS...Snow levels will hold around 3000 to 3500
feet today into this evening, then lower to 2500 feet Monday
night.
* WHAT...Snow above 3000 feet. Additional snow accumulations of 6
to 10 inches, except 12 to 18 inches above 4000 ft. Winds
gusting as high as 45 mph.
* WHERE...Cascades of Marion and Linn Counties and Cascades of
Lane County.
* WHEN...Until 6 PM PDT Tuesday.
* IMPACTS...Travel could be very difficult. The hazardous
conditions could impact the morning or evening commute. Gusty
winds could bring down tree branches.
* ADDITIONAL DETAILS...Snow levels will hold near 4000 feet
today into this evening, then lower to 2500 feet later Monday
night into Tuesday.
* WHAT...Minor coastal flooding expected. Inundation of 1.5 to 2.5
feet above ground level is possible along shorelines and low-
lying coastal areas.
* WHERE...Tacoma Area and Seattle and Vicinity zones.
* WHEN...From 4 AM to 10 AM PDT Tuesday.
* IMPACTS...Minor coastal flooding due to tidal overflow is
expected around high tide. This may lead to flooding of parking
lots, parks, and roads, with only isolated road closures
expected.
* WHAT...Minor coastal flooding expected. Inundation of 1.5 to 2.5
feet above ground level is possible along shorelines and low-
lying coastal areas.
* WHERE...North Coast and Central Coast zones.
* WHEN...From midnight tonight to 6 AM PDT Tuesday.
* IMPACTS...Minor coastal flooding due to tidal overflow is
expected around high tide. This may lead to flooding of
parking lots, parks, and roads, with only isolated road
closures expected.
* ADDITIONAL DETAILS...Breezy onshore flow and wave run-up are
enhancing the coastal flood threat.
* WHAT...Snow above 3000 feet. Additional snow accumulations of 6
to 12 inches, except 12 to 18 inches above 4000 feet near the
crest. Winds gusting as high as 40 mph tomorrow on exposed
ridges.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the commute.
* WHAT...Snow above 4000 feet. Additional snow accumulations of 8
to 18 inches, highest above 4500 feet. Winds gusting as high as
40 mph tomorrow.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the commute.
* ADDITIONAL DETAILS...Lower snow total of 1 to 3 inches
forecast from 4000 to 4500 feet along the US-97 corridor between
Bend and La Pine this afternoon through Tuesday morning.
* WHAT...For the Winter Storm Warning, heavy snow expected. Total
snow accumulations of up to 24 inches. Winds gusting as high as
45 mph. For the Winter Weather Advisory, snow expected. Total
snow accumulations of 6 to 18 inches. Winds gusting as high as
45 mph.
* WHERE...South Central Oregon Cascades north of Highway 66.
Affected roadways include Highways 138, 232, 230, and 138 around
Diamond Lake and Crater Lake as well as Highway 58 near
Willamette Pass and Highway 140 through the Cascades.
* WHEN...Until 5 PM PDT Tuesday.
* IMPACTS...Travel could be very difficult to impossible.
* View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr