...The Flood Warning is extended for the following rivers in
Washington...
Skokomish River At Potlatch affecting Mason County.
.The river is expected to remain in minor flood stage through early
Thursday morning. Additional rounds of precipitation are expected to
bring the river back into moderate flood stage early Thursday
morning.
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Skokomish River at Potlatch.
* WHEN...Until further notice.
* IMPACTS...At 17.5 feet, the Skokomish River will cause moderate
flooding, with deep and quick flood waters inundating some
residential areas, many roads, and much of the farm land in the
Skokomish Valley. Inundated roads include the Skokomish Valley
road, Bourgault Road West, Purdy Cutoff Road, and Highway 106.
* ADDITIONAL DETAILS...
- At 8:30 AM PST Tuesday the stage was 16.9 feet.
- Flood stage is 16.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 AM PST Tuesday was 17.0 feet.
- Forecast...The river is expected to remain in minor flood
stage through early Thursday morning. The river will then
rise into moderate flood stage Thursday.
- Flood History...This crest compares to a previous crest of
16.8 feet on 11/23/1990.
- http://www.weather.gov/safety/flood
* WHAT...Heavy snow possible. Total snow accumulations between 18
and 24 inches possible above 3500 feet.
* WHERE...Stehekin, Stevens Pass, and Holden Village.
* WHEN...From Wednesday afternoon through Friday morning.
* IMPACTS...Travel could be very difficult over Stevens Pass.
* ADDITIONAL DETAILS...Expect snowfall rates around 1 inch per hour
or greater at Stevens Pass Wednesday night. For Coles Corner and
Stehekin, total snow accumulations between 5 and 12 inches.
* WHAT...Southeast winds 25 to 40 mph possible Wednesday afternoon
into Thursday. Gusts as high as 55 mph possible Thursday.
* WHERE...Admiralty Inlet Area, San Juan County, Western Skagit
County, and Western Whatcom County.
* WHEN...From Wednesday afternoon through Thursday afternoon.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles.
* WHAT...Southeast winds 25 to 40 mph with gusts up to 55 mph
becoming west 25 to 45 mph with gusts to 65 mph Thursday morning.
* WHERE...Central Coast and North Coast.
* WHEN...From Wednesday evening through Thursday afternoon.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles.
* ADDITIONAL DETAILS...This storm has the potential to produce the
strongest winds of the season to date.
...MODERATE TO HEAVY SNOW ALONG THE WASHINGTON CASCADES CHRISTMAS
AFTERNOON THROUGH THURSDAY...
.A strong winter storm will bring moderate to heavy snow to the
Washington Cascades Wednesday afternoon through Thursday afternoon.
Along the east slopes of the central and southern Cascades, snow
levels will increase on Thursday with precipitation changing to rain
or a rain and snow mix for many areas.
* WHAT...Snow expected for elevations above 3000 feet. Total snow
accumulations between 5 and 10 inches.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...From 1 PM Wednesday to 6 PM PST Thursday.
* IMPACTS...Heavy snowfall and very low visibility will create
extremely dangerous driving conditions.
...MODERATE TO HEAVY SNOW ALONG THE WASHINGTON CASCADES CHRISTMAS
AFTERNOON THROUGH THURSDAY...
.A strong winter storm will bring moderate to heavy snow to the
Washington Cascades Wednesday afternoon through Thursday afternoon.
Along the east slopes of the central and southern Cascades, snow
levels will increase on Thursday with precipitation changing to rain
or a rain and snow mix for many areas.
* WHAT...Snow expected for elevations above 3000 feet. Total snow
accumulations 5 to 10 inches.
* WHERE...Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...From 3 PM Wednesday to 3 PM PST Thursday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
* WHAT...Large waves and hazardous surf conditions. Breakers up to
25 to 30 feet.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...From 4 PM Wednesday to 10 PM PST Thursday.
* 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.
* ADDITIONAL DETAILS...There is a high threat for sneaker waves.
* WHAT...Heavy wet snow possible above 4500 feet. Total snow
accumulations of 1 to 2 feet, with heaviest snowfall above 5500
feet. Winds could gust as high as 50 mph on higher exposed
terrain.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...From late Wednesday afternoon through Friday morning.
* IMPACTS...Travel could be difficult at times, with snow-packed
roadways.
* ADDITIONAL DETAILS...Two rounds of higher intensity snowfall
will most likely impact the Cascades later this week. The first
round will be late Wednesday afternoon through Thursday morning.
A second storm system will be quick on the first storm system
heels, and bring another round of heavy snowfall Thursday night
into Friday. The Timberline Highway, US-20 over Santiam Pass
and Highway 58 over Willamette Pass will be the roadways most
heavily impacted by the snow.
* WHAT...South winds 15 to 30 mph, with gusts 45 to 60 mph possible.
* WHERE...Areas above 1000 feet across the North and Central Coast
Range Mountains of Oregon and Willapa Hills.
* WHEN...From Wednesday evening through Thursday morning.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles.
* WHAT...South to southwest winds 20 to 30 mph, with gusts up to 60
mph possible.
* WHERE...South Washington and North and Central Oregon Coast.
* WHEN...From Wednesday evening through Thursday morning.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles.
* WHAT...Heavy snow possible at or above elevations greater than
4000 ft. Total snow accumulations between 18 to 24 inches
possible. Winds could gust as high as 65 mph.
* WHERE...Olympics.
* WHEN...From Wednesday afternoon through Friday morning.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Visibilities may drop below 1/4
mile due to falling and blowing snow.
* WHAT...Heavy snow possible at or above elevations greater than
3500 ft. Total snow accumulations between 18 to 24 inches
possible. Winds could gust as high as 55 mph.
* WHERE...West Slopes North Cascades and Passes, West Slopes North
Central Cascades and Passes, and West Slopes South Central
Cascades and Passes.
* WHEN...From Wednesday afternoon through Friday morning.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Visibilities may drop below 1/4
mile due to falling and blowing snow.
* ADDITIONAL DETAILS...Accumulations of 6 to 12 inches will be
possible for elevations between 3000 to 3500 feet, including
Snoqualmie Pass.
* WHAT...For the first High Surf Advisory, large breaking waves
of 16 to 20 feet in the surf zone. For the second High Surf
Advisory, large breaking waves of 18 to 24 feet expected in
the surf zone.
* WHERE...North Coast and Central Coast zones.
* WHEN...For the first High Surf Advisory, until 1 PM PST this
afternoon. For the second High Surf Advisory, from 10 PM
Wednesday to 10 PM PST Thursday.
* IMPACTS...Large waves may wash over beaches, jetties, and
other structures unexpectedly. Localized beach erosion is
possible. People can be swept off rocks and jetties, and drown
while observing high surf.
* ADDITIONAL DETAILS...Waves just offshore will be long period
with a dominant period of 20 to 22 seconds for both advisories.
This will enhance the risk for beach erosion and infrastructure
damage on west or southwest facing beaches.
* WHAT...For the first High Surf Advisory, large breaking waves
of 16 to 20 feet in the surf zone. For the second High Surf
Advisory, large breaking waves of 18 to 24 feet expected in
the surf zone.
* WHERE...North Coast and Central Coast zones.
* WHEN...For the first High Surf Advisory, until 1 PM PST this
afternoon. For the second High Surf Advisory, from 10 PM
Wednesday to 10 PM PST Thursday.
* IMPACTS...Large waves may wash over beaches, jetties, and
other structures unexpectedly. Localized beach erosion is
possible. People can be swept off rocks and jetties, and drown
while observing high surf.
* ADDITIONAL DETAILS...Waves just offshore will be long period
with a dominant period of 20 to 22 seconds for both advisories.
This will enhance the risk for beach erosion and infrastructure
damage on west or southwest facing beaches.
* WHAT...South winds 25 to 35 mph with gusts 45 to 55 mph expected
for the base of the Blue Mountains of Washington.
* WHERE...Foothills of the Blue Mountains of Washington.
* WHEN...Until 7 AM PST this morning.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
...The Flood Warning continues for the following rivers in
Washington...
Skokomish River At Potlatch affecting Mason County.
.Minor flooding is occuring along the Skokomish River. The river
will recede below flood stage Tuesday. Rounds of precipitation in
the coming days will lead to additional flooding.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Skokomish River at Potlatch.
* WHEN...Until tomorrow afternoon.
* IMPACTS...At 16.5 feet, the Skokomish River will cause widespread
flooding of pasture lands, with water flowing quickly over West
Bourgault Road and Skokomish Valley Road.
* ADDITIONAL DETAILS...
- At 8:30 PM PST Monday the stage was 16.9 feet.
- Flood stage is 16.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 PM PST Monday was 17.5 feet.
- Forecast...The river is expected to fall below flood stage
late Tuesday morning and remain just below flood stage for
the remainder of the day.
- http://www.weather.gov/safety/flood
* WHAT...South winds 25 to 35 mph with gusts 45 to 55 mph expected
for the base of the Blue Mountains of Washington.
* WHERE...Foothills of the Blue Mountains of Washington.
* WHEN...Until 7 AM PST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Visibility of one-quarter mile or less in dense fog.
* WHERE...Kittitas Valley.
* WHEN...Until 1 AM PST Tuesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Heavy snow possible. Total snow accumulations between 18
and 24 inches possible above 3500 feet.
* WHERE...Stevens Pass, Stehekin, and Holden Village.
* WHEN...From Wednesday afternoon through Friday morning.
* IMPACTS...Travel could be very difficult over Stevens Pass.
* ADDITIONAL DETAILS...Expect snowfall rates around 1 inch per hour
or greater at Stevens Pass Wednesday night. For Coles Corner and
Stehekin, total snow accumulations between 5 and 12 inches.
* WHAT...Snow expected. Total snow accumulations 3 to 8 inches.
* WHERE...Conconully, Winthrop, Mazama, Twisp, Methow, and Loup Loup
Pass.
* WHEN...From 10 PM this evening to 10 AM PST Tuesday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Tuesday morning commute.
* ADDITIONAL DETAILS...Snowfall rates of 1" per hour are possible
between midnight and 5 AM tonight, especially around Mazama and
Loup Loup Pass.
