* WHAT...Snow expected at or above elevations greater than 5000 ft.
Total snow accumulations between 6 and 10 inches.
* WHERE...West Slopes North Cascades and Passes. Primary area of
concern will be along Highway 20 in the area of Rainy Pass.
* WHEN...Until 11 PM PDT Friday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...There will be a brief break in the steadier
snowfall today before snow increases in intensity tonight through
Friday.
* WHAT...Snow expected at or above elevations greater than 4000 ft.
Total snow accumulations between 8 and 24 inches. Winds gusting as
high as 40 mph.
* WHERE...West Slopes South Central Cascades and Passes.
* WHEN...Until 5 PM PDT Friday.
* IMPACTS...Travel could be very difficult to impossible.
* ADDITIONAL DETAILS...There will be a brief break in the steadier
snowfall this morning, snow will then increase in intensity later
this afternoon and continue through Friday. The heaviest snowfall
amounts will be above 5000 feet.
...EARLY SEASON SNOWFALL TO THE CASCADES THROUGH FRIDAY AFTERNOON...
.A cold front will bring a rapid onset of accumulating snow above
4000 feet this afternoon and evening. Precipitation will be more
showery today, increasing in intensity tonight into Friday. Highest
accumulations will be above 5000 feet and in the Linn and Lane
County Cascades. Winds too will become gusty from the south tonight
which will increase chances for blowing snow and reduced visibility.
* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches
above 4000 feet and 10 to 17 inches above 5000 feet.
* WHERE...In Oregon, North Oregon Cascades. In Washington, South
Washington Cascades.
* WHEN...Until 5 PM PDT Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult
to impossible. The hazardous conditions could impact the Thursday
morning and evening commutes.
* WHAT...Visibility at a quarter mile or less in dense fog.
* WHERE...Yakima Valley.
* WHEN...Until 8 AM PDT this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Dense Fog has been observed along I-82
between Grandview and Parker.
...EARLY SEASON SNOWFALL TO THE CASCADES THROUGH FRIDAY AFTERNOON...
.A cold front will bring a rapid onset of accumulating snow above
4000 to 5000 feet this afternoon and evening. A lull in snow will
most likely occur tonight before additional snow showers bring
higher snowfall rates to the Cascades Thursday into early Friday.
Highest accumulations will be above 5000 feet and in the Linn and
Lane County Cascades.
* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches
above 4000 feet and 10 to 18 inches above 5000 feet.
* WHERE...In Oregon, North Oregon Cascades. In Washington, South
Washington Cascades.
* WHEN...Until 5 PM PDT Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult.
* WHAT...Snow expected at or above elevations greater than 5000 ft.
Total snow accumulations between 8 and 10 inches.
* WHERE...West Slopes North Cascades and Passes. Primary area of
concern will be along Highway 20 in the area of Rainy Pass.
* WHEN...From 5 PM this afternoon to 11 PM PDT Friday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Wednesday evening and Thursday morning commutes.
* ADDITIONAL DETAILS...A cold front will bring accumulating snow
above 5000 feet on Wednesday. A lull in snow will most likely
occur Wednesday night into Thursday morning before additional snow
showers bring periods of heavier snowfall late Thursday into
Friday.
* WHAT...Snow expected at or above elevations greater than 4000 ft.
Total snow accumulations between 8 and 20 inches. Winds gusting as
high as 40 mph.
* WHERE...West Slopes South Central Cascades and Passes.
* WHEN...Until 5 PM PDT Friday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the commutes Wednesday evening through Friday.
* ADDITIONAL DETAILS...A cold front will bring accumulating snow
above 4000 feet on Wednesday. A lull in snow will most likely
occur Wednesday night into Thursday morning before additional snow
showers bring periods of heavier snowfall late Thursday into
Friday.
* WHAT...Snow above 3500 feet. Snow accumulations 6 to 12 inches.
* WHERE...Washington Pass, Loup Loup Pass, Mazama, Highway 20
Wauconda Summit, and Sherman Pass.
* WHEN...Until 11 PM PDT Friday.
* IMPACTS...Expect winter driving conditions at the mountain passes.
* ADDITIONAL DETAILS...Mountain passes will receive the greatest
snowfall amounts. There will be a break in the snowfall tonight
but will pick up again in the afternoon and evening hours
Thursday. Snow will begin to taper off Friday evening.
...EARLY SEASON SNOWFALL TO THE CASCADES THROUGH FRIDAY AFTERNOON...
.A cold front will bring a rapid onset of accumulating snow above
4000-5000 feet this afternoon and evening. A lull in snow will most
likely occur tonight into Thursday morning before additional snow
showers bring higher snowfall rates to the Cascades late Thursday
into early Friday. Highest accumulations will be above 5500 feet and
in the Lane County Cascades.
* WHAT...Snow expected. Total snow accumulations of 6-12 inches
except up to 16 inches along the tops of the volcanos (above 5500
feet).
* WHERE...In Oregon, North Oregon Cascades and Cascades of Marion
and Linn Counties. In Washington, South Washington Cascades.
* WHEN...From 2 PM this afternoon to 5 PM PDT Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult
to impossible. The hazardous conditions could impact the Wednesday
evening and Thursday morning commutes.
* WHAT...Snow expected at or above elevations greater than 4000 ft.
Total snow accumulations between 8 and 20 inches. Winds gusting as
high as 40 mph.
* WHERE...West Slopes South Central Cascades and Passes.
* WHEN...From 11 AM this morning to 5 PM PDT Friday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the commutes Wednesday evening through Friday.
* ADDITIONAL DETAILS...A cold front will bring accumulating snow
above 4000 feet on Wednesday. A lull in snow will most likely
occur Wednesday night into Thursday morning before additional snow
showers bring periods of heavier snowfall late Thursday into
Friday.
* WHAT...Sub-freezing temperatures as low as 28 expected.
* WHERE...Lower Columbia Basin of Washington.
* WHEN...From 1 AM to 9 AM PDT Wednesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* ADDITIONAL DETAILS...Widespread sub-freezing temperatures are
expected across the Lower Columbia Basin of Washington overnight
and Wednesday morning, especially in cold-prone areas.
Sub-freezing temperatures are not expected to be ubiquitous in the
Tri-Cities.
A frontal system will move through the area Wednesday night.
* WHAT...Snow expected at or above elevations greater than 4000 ft.
Total snow accumulations of 5 to 9 inches. Winds gusting as high
as 35 mph.
* WHERE...West Slopes South Central Cascades and Passes.
* WHEN...From 2 PM Wednesday to 5 AM PDT Thursday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Wednesday evening commute.
* WHAT...Snow expected. Total snow accumulations 6-12 inches above
4000 feet with 8 to 16 inches above 5000 feet.
* WHERE...In Oregon, North Oregon Cascades and Cascades of Marion
and Linn Counties. In Washington, South Washington Cascades.
* WHEN...From 2 PM Wednesday to 5 PM PDT Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult.
* ADDITIONAL DETAILS...A cold front will bring a rapid onset of
accumulating snow above 4000-5000 feet Wednesday afternoon into
Wednesday evening. A lull in snow will most likely occur Wednesday
night into Thursday morning before additional snow showers bring
higher snowfall rates to the Cascades late Thursday into early
Friday.
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...North and Central Coast Range Valleys of Oregon, Central
Willamette Valley, Tillamook County Coast, Lower Columbia River,
Tualatin Valley, Portland West Hills and Chehalem Mountain, Benton
County Lowlands, Linn County Lowlands, and Willapa and Wahkiakum
Lowlands.
* WHEN...Until 11 AM PDT this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Snow. Additional snow accumulations up to one inch between
7 AM and 11 AM.
* WHERE...Western Okanogan County County.
* WHEN...Until 11 AM PDT this morning.
* IMPACTS...With snow levels around 4000 feet, motorists going over
Washington Pass with an elevation of 5400 feet can expect winter
driving conditions near the pass.
* WHAT...Snow expected. Total snow accumulations of 5 to 10 inches.
* WHERE...West Slopes North Cascades and Passes.
* WHEN...Until 11 AM PDT this morning.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Snow expected. Total snow accumulations 4 to 8 inches above
4000 feet.
* WHERE...Washington Pass.
* WHEN...Until 11 AM PDT Monday.
* IMPACTS...Plan on slippery road conditions on North Cascades
Highway State Route 20 over Washington Pass.
* WHAT...Snow expected. Total snow accumulations of 5 to 10 inches.
* WHERE...West Slopes North Cascades and Passes above 4000 feet
including Mt. Baker Ski area.
* WHEN...Until 11 AM PDT Monday.
* IMPACTS...Plan on slippery road conditions.
At 224 PM PDT, Doppler radar was tracking a strong thunderstorm over
Vancouver Downtown, moving northeast at 30 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Vancouver Downtown, Portland, Vancouver, Walnut Grove, Barberton,
Hazel Dell North, Orchards, Five Corners, Hazel Dell South, Lake
Shore, Mill Plain, Meadow Glade, Salmon Creek, Jantzen Beach, Brush
Prairie, Minnehaha, Vancouver Mall, and Sifton.
This includes the following highways in Washington...
Interstate 5 between mile markers 1 and 5.
Interstate 205 between mile markers 30 and 35.
State Route 503 between mile markers 2 and 4.
* WHAT...Snow expected. Total snow accumulations 4 to 8 inches above
4000 feet.
* WHERE...Washington Pass
* WHEN...From 5 PM this afternoon to 11 AM PDT Monday.
* IMPACTS...Plan on slippery road conditions on Highway 20 over
Washington Pass.
* ADDITIONAL DETAILS...Light accumulations are possible today as
well.
