* WHAT...Snow above 4000 feet. For the Winter Weather Advisory, snow
showers will result in additional snow accumulations between 2 and
4 inches through Tuesday afternoon. For the Winter Storm Watch, 1
to 2 feet of snow is possible Tuesday night through Thursday
afternoon over Washington Pass. 3 to 6 inches is possible over
Loup Loup Pass Tuesday night through Wednesday night.
* WHERE...State Route 20 North Cascades Highway over Washington Pass.
* WHEN...For the Winter Weather Advisory, until 4 PM PST this
afternoon. For the Winter Storm Watch, from this afternoon through
Thursday afternoon.
* IMPACTS...Periods of snow through Thursday afternoon will add up
to considerable accumulations. Check the Washington Department of
Transportation for the status of Washington Pass on State Route 20
before you travel.
* ADDITIONAL DETAILS...Persistent light snow will fall over the
North Cascades through Tuesday afternoon. A stronger winter storm
will arrive Tuesday evening into Wednesday with potential for 1-2
feet of snow.
* WHAT...Heavy snow possible. Total snow accumulations between 8 and
14 inches possible above 4000 feet.
* WHERE...Chesaw Road, Sherman Pass, Highway 20 Wauconda Summit, and
Boulder Creek Road.
* WHEN...From this evening through late Wednesday night.
* IMPACTS...Motorists should be prepared for winter driving
conditions at elevations above 4000 feet in Ferry and Okanogan
counties Tuesday night through Wednesday night.
* ADDITIONAL DETAILS...Snow levels will waver between 4000 and 5000
feet with the heaviest snow occurring at high elevations including
Sherman Pass at over 5500 feet.
* WHAT...Snow above 4000 feet. For the Winter Weather Advisory, snow
showers will result in additional snow accumulations between 2 and
4 inches through Tuesday afternoon. For the Winter Storm Watch, 1
to 2 feet of snow is possible Tuesday night through Thursday
afternoon over Washington Pass. 3 to 6 inches is possible over
Loup Loup Pass Tuesday night through Wednesday night.
* WHERE...State Route 20 North Cascades Highway over Washington Pass.
* WHEN...For the Winter Weather Advisory, until 4 PM PST this
afternoon. For the Winter Storm Watch, from this afternoon through
Thursday afternoon.
* IMPACTS...Periods of snow through Thursday afternoon will add up
to considerable accumulations. Check the Washington Department of
Transportation for the status of Washington Pass on State Route 20
before you travel.
* ADDITIONAL DETAILS...Persistent light snow will fall over the
North Cascades through Tuesday afternoon. A stronger winter storm
will arrive Tuesday evening into Wednesday with potential for 1-2
feet of snow.
* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected.
* WHERE...In Oregon, Foothills of the Southern Blue Mountains of
Oregon and Grande Ronde Valley. In Washington, Foothills of the
Blue Mountains of Washington.
* WHEN...From 10 PM this evening to 4 PM PST Wednesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...For the High Wind Warning for the base of the northern Blue
Mountains of Oregon, south winds 30 to 40 mph with gusts up to 60
mph expected. For the Wind Advisory, south winds 25 to 35 mph with
gusts up to 50 mph expected.
* WHERE...Foothills of the Northern Blue Mountains of Oregon.
* WHEN...From 10 PM this evening to 4 PM PST Wednesday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles. Gusty winds will blow around
unsecured objects. Tree limbs could be blown down and a few power
outages may result.
* ADDITIONAL DETAILS...The strongest winds are expected along
Interstate 84 at Cabbage Hill in the overnight period. Below
Cabbage Hill, winds will be slightly weaker, with gusts 40 to 55
mph.
* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected.
* WHERE...In Oregon, Foothills of the Southern Blue Mountains of
Oregon and Grande Ronde Valley. In Washington, Foothills of the
Blue Mountains of Washington.
* WHEN...From 10 PM this evening to 4 PM PST Wednesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...For the High Wind Warning for the base of the northern Blue
Mountains of Oregon, south winds 30 to 40 mph with gusts up to 60
mph expected. For the Wind Advisory, south winds 25 to 35 mph with
gusts up to 50 mph expected.
* WHERE...Foothills of the Northern Blue Mountains of Oregon.
* WHEN...From 10 PM this evening to 4 PM PST Wednesday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles. Gusty winds will blow around
unsecured objects. Tree limbs could be blown down and a few power
outages may result.
* ADDITIONAL DETAILS...The strongest winds are expected along
Interstate 84 at Cabbage Hill in the overnight period. Below
Cabbage Hill, winds will be slightly weaker, with gusts 40 to 55
mph.
* WHAT...Wet snow above 4000 feet. Additional snow accumulations up
to 3 inches. The highest snow accumulations will occur above 4500
feet including along Highway 35 near Bennett Pass, the Timberline
Highway on Mt. Hood and in the vicinity of Santiam Pass along
US20. Winds gusting as high as 35 mph.
* WHERE...Northern and Central Oregon Cascades.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Temperatures dropping below freezing Monday
night into early Tuesday morning will lead to untreated surfaces
becoming icy and slick above 4000 feet.
* WHAT...Large waves and hazardous surf conditions. Breakers up to
26 feet.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Destructive waves may wash over beaches, jetties,
and other structures unexpectedly. People can be swept off
rocks and jetties and drown while observing high surf. Minor
beach erosion may damage coastal properties and buildings.
Higher than normal water run-up is expected on beaches and low-
lying shoreline.
* WHAT...Large waves and hazardous surf conditions. Breakers up to
26 feet.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Destructive waves may wash over beaches, jetties,
and other structures unexpectedly. People can be swept off
rocks and jetties and drown while observing high surf. Minor
beach erosion may damage coastal properties and buildings.
Higher than normal water run-up is expected on beaches and low-
lying shoreline.
* WHAT...South winds 30 to 40 mph with gusts up to 60 mph expected.
* WHERE...South Washington and North and Central Oregon Coast.
* WHEN...From 8 PM this evening to 6 AM PST Wednesday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Some power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* ADDITIONAL DETAILS...Highest winds will be along the beaches and
headlands.
* WHAT...South winds 20 to 25 mph with gusts up to 45 mph expected.
* WHERE...Central and Southern Willamette Valley, Lower Columbia
River and Cowlitz River Valleys, Tualatin Valley, Portland West
Hills and Chehalem Mountain, Inner Portland Metro, North Clark
County Lowlands, and Inner Vancouver Metro.
* WHEN...From 8 PM this evening to 6 AM PST Wednesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...South winds 30 to 40 mph with gusts up to 60 mph expected.
* WHERE...South Washington and North and Central Oregon Coast.
* WHEN...From 8 PM this evening to 6 AM PST Wednesday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Some power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* ADDITIONAL DETAILS...Highest winds will be along the beaches and
headlands.
* WHAT...South winds 20 to 25 mph with gusts up to 45 mph expected.
* WHERE...Central and Southern Willamette Valley, Lower Columbia
River and Cowlitz River Valleys, Tualatin Valley, Portland West
Hills and Chehalem Mountain, Inner Portland Metro, North Clark
County Lowlands, and Inner Vancouver Metro.
* WHEN...From 8 PM this evening to 6 AM PST Wednesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Snow above 5000 feet. Additional snow accumulations between
3 and 6 inches. Winds gusting as high as 35 mph.
* WHERE...The southern Oregon Cascades, mainly north of Highway 140,
including Crater Lake, and Highways 62, 230, 138 and 58.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Tuesday morning commute.
* WHAT...Snow Above 4000 feet. Additional snow accumulations between
3 and 6 inches by Tuesday afternoon followed by 1 to 2 feet of
snow Tuesday night into Wednesday night.
* WHERE...Western Okanogan County County.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Periods of snow through Thursday afternoon will add up
to considerable accumulations. Check the Washington Department of
Transportation for the status of Washington Pass on State Route 20
before you travel.
* WHAT...Heavy snow possible. Total snow accumulations between 8 and
16 inches possible above 4000 feet.
* WHERE...Highway 20 Wauconda Summit, Sherman Pass, Boulder Creek
Road, and Chesaw Road.
* WHEN...From Tuesday afternoon through late Wednesday night.
* IMPACTS...Motorists should be prepared for winter driving
conditions at elevations above 4000 feet in Ferry and Okanogan
counties Tuesday night through Wednesday night during this
prolonged mountain snow event.
* ADDITIONAL DETAILS...Snow levels will waver between 4000 and 5000
feet with the heaviest snow occurring at high elevations including
Sherman Pass at over 5500 feet.
* WHAT...Snow expected above 4000 feet. Additional snow
accumulations of 3 to 8 inches. The highest snow accumulations
will occur above 4500 feet including along Highway 35 near Bennett
Pass, The Timberline Highway on Mt Hood and in the vicinity of
Santiam Pass along US20. Winds gusting as high as 35 mph.
* WHERE...Northern and Central Oregon Cascades.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Temperatures dropping below freezing
overnight will lead to untreated surfaces becoming icy and slick
above 4000 feet.
ESFSEW
A series of strong and wet Pacific storm systems will track through
western Washington this week with sharp rises on the rivers flowing
off the Olympics and Cascades. The next system will arrive Tuesday
afternoon into Thursday, with a short break from the rainfall this
weekend. Multiple rivers may climb into action stage, depending on
rainfall rates, snow levels, temperatures, and storm totals once the
heaviest of the precipitation wraps up Thursday.
Please continue to monitor the latest river forecasts from the
National Weather Service for additional information.
Moderate to heavy rain with thunderstorms remains likely with a
disturbance passing through middle of the week.
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of northwest Washington, including the following
county, Mason.
* WHEN...Through late Tuesday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Low-water crossings may be flooded.
* ADDITIONAL DETAILS...
- Another round of moderate to heavy rain is expected with a
system Tuesday night through Thursday. Three to six inches of
rain are likely. Snow levels are expected to remain above the
top of the Skokomish River watershed, resulting in the
Skokomish River to rise to above minor flood stage early
Wednesday morning, potentially cresting in moderate flood
stage Wednesday afternoon.
- http://www.weather.gov/safety/flood