* WHAT...Heavy snow expected at or above elevations greater than
4000 ft. Total snow accumulations between 15 and 30 inches. Winds
gusting as high as 60 mph.
* WHERE...Olympics.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Travel could be very difficult to impossible. Strong
winds could cause extensive damage to trees and power lines.
* WHAT...Large breaking waves of 16 to 22 feet expected in the
surf zone.
* WHERE...North Coast and Central Coast zones.
* WHEN...From 9 AM this morning to 10 AM PST Friday.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion.
...Forecast flooding changed from Minor to Moderate severity for the
following rivers in Washington...
Skokomish River At Potlatch affecting Mason County.
.The river will remain near flood stage today then rise tonight into
Thursday cresting in moderate flood stage Thursday morning.
* WHAT...Moderate flooding is forecast.
* WHERE...Skokomish River at Potlatch.
* WHEN...Through the weekend.
* 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 3:30 AM PST Wednesday the stage was 16.4 feet.
- Flood stage is 16.5 feet.
- Forecast...The river is expected to remain near flood stage
today then rise tonight into Thursday cresting near 17.7 feet
late Thursday morning.
- http://www.weather.gov/safety/flood
* WHAT...For the Wind Advisory, southeast winds 20 to 30 mph with
gusts up to 50 mph expected. For the High Wind Watch, southeast
winds 25 to 35 mph with gusts up to 60 mph possible.
* WHERE...Admiralty Inlet Area, San Juan County, Western Skagit
County, and Western Whatcom County.
* WHEN...For the Wind Advisory, from 7 AM this morning to 10 PM PST
this evening. For the High Wind Watch, from this 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.
* WHAT...For the Wind Advisory, southeast winds 20 to 35 mph with
gusts up to 50 mph expected. For the High Wind Warning, south
winds 30 to 40 mph with gusts up to 60 mph late tonight becoming
west Thursday morning.
* WHERE...North Coast.
* WHEN...For the Wind Advisory, until 4 PM PST this afternoon. For
the High Wind Warning, from 10 PM this evening to 1 PM PST
Thursday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* WHAT...South winds 25 to 40 mph with gusts up to 60 mph late
tonight. Winds becoming west 25 to 40 mph with gusts 50 to 60 mph
Thursday morning.
* WHERE...Central Coast.
* WHEN...From 10 PM this evening to 1 PM PST Thursday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* WHAT...For the Wind Advisory, southeast winds 20 to 30 mph with
gusts up to 50 mph expected. For the High Wind Watch, southeast
winds 25 to 35 mph with gusts up to 60 mph possible.
* WHERE...Admiralty Inlet Area, San Juan County, Western Skagit
County, and Western Whatcom County.
* WHEN...For the Wind Advisory, from 7 AM this morning to 10 PM PST
this evening. For the High Wind Watch, from this 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.
* WHAT...For the Wind Advisory, southeast winds 20 to 35 mph with
gusts up to 50 mph expected. For the High Wind Warning, south
winds 30 to 40 mph with gusts up to 60 mph late tonight becoming
west Thursday morning.
* WHERE...North Coast.
* WHEN...For the Wind Advisory, until 4 PM PST this afternoon. For
the High Wind Warning, from 10 PM this evening to 1 PM PST
Thursday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* WHAT...For the High Surf Advisory, large waves and hazardous
surf conditions. Breakers 25 to 30 feet. For the Coastal Flood
Advisory, tidal overflow flooding expected.
* WHERE...South Washington Coast.
* WHEN...For the High Surf Advisory, from 4 PM this afternoon to
4 PM PST Friday. For the Coastal Flood Advisory, from 6 AM to
noon PST Thursday.
* IMPACTS...Minor flooding, up to two feet above ground level,
during high tides is expected in the low lying areas near bays,
sloughs, and the lower reaches of the coastal rivers.
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...Toke Point is forecast to reach 12 feet at
9 am on Thursday.
* WHAT...For the High Surf Advisory, large waves and hazardous
surf conditions. Breakers 25 to 30 feet. For the Coastal Flood
Advisory, tidal overflow flooding expected.
* WHERE...South Washington Coast.
* WHEN...For the High Surf Advisory, from 4 PM this afternoon to
4 PM PST Friday. For the Coastal Flood Advisory, from 6 AM to
noon PST Thursday.
* IMPACTS...Minor flooding, up to two feet above ground level,
during high tides is expected in the low lying areas near bays,
sloughs, and the lower reaches of the coastal rivers.
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...Toke Point is forecast to reach 12 feet at
9 am on Thursday.
* WHAT...Snow expected. From 4500 feet to 5000 feet, total snow
accumulation 3 to 8 inches. Above 5000 feet, total snow
accumulations of 10 to 18 inches. Winds gusting 25 to 45 mph
tonight into Thursday.
* WHERE...West Slopes of the Northern and Central Oregon
Cascades, and South Washington Cascades.
* WHEN...From 1 PM this afternoon to 10 PM PST Thursday.
* IMPACTS...Travel could be very difficult.
* WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected
for the base of the northern Blue Mountains of Oregon and
Washington.
* WHERE...In Oregon, Foothills of the Northern Blue Mountains of
Oregon. In Washington, Foothills of the Blue Mountains of
Washington.
* WHEN...From 10 PM this evening to 10 AM PST Thursday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Yakima Valley.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Heavy snow expected for elevations above 3000 feet. Total
snow accumulations between 6 and 18 inches.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...From 1 PM this afternoon to 10 PM PST Thursday.
* IMPACTS...Heavy snowfall and very low visibility will create
extremely dangerous driving conditions.
* WHAT...Wet snow expected above 4000 feet. Total snow accumulations
up to 8 to 10 inches. Winds gusting as high as 45 mph.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...From 10 PM this evening to 4 PM PST Thursday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions. Gusty winds
could bring down tree branches.
* WHAT...Heavy snow expected for elevations above 3000 feet. Total
snow accumulations up to 6 to 12 inches.
* WHERE...Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...From 4 PM this afternoon to 10 AM PST Thursday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
* WHAT...South winds of 20 to 30 mph with gusts 45 to 55 mph
tonight. After 3 am Thursday, winds will become west to southwest
20 to 30 mph with gusts 55 to 65 mph. These strong winds will be
primarily across the higher terrain. Winds will gradually ease
after 9 am.
* WHERE...Willapa Hills.
* WHEN...From midnight tonight to 10 AM PST Thursday.
* IMPACTS...Damaging winds may blow down trees and power lines. Some
power outages are expected. Travel will be difficult, especially
for high profile vehicles.
* WHAT...South winds 20 to 30 mph with gusts 55 to 65 mph are
expected along the headlands and open exposed areas like the
beaches. Elsewhere, expect gusts of 45 to 55 mph.
* WHERE...In Oregon, Clatsop County Coast. In Washington, South
Washington Coast.
* WHEN...From 10 PM this evening to 8 AM PST Thursday.
* IMPACTS...Damaging winds may blow down trees and power lines. Some
power outages are expected. Travel will be difficult, especially
for high profile vehicles.
* ADDITIONAL DETAILS...Expect two bursts of strong winds. First,
ahead of the cold front as it moves ashore around 2 am Thursday.
Then, winds ease a bit, then another burst of strong west to
southwest winds from 4 to 8 am as low pressure north of the region
moves inland.
* WHAT...Visibility one quarter mile or less in dense fog. A light
glaze of ice with freezing fog.
* WHERE...Wilbur, Creston, Harrington, Quincy, Coulee City, Moses
Lake, Othello, Grand Coulee, Odessa, Ephrata, and Ritzville.
* WHEN...Until 11 AM PST Wednesday.
* IMPACTS...Low visibility and ice formation from freezing fog may
result in hazardous driving conditions.
...MODERATE TO HEAVY SNOW CHRISTMAS AFTERNOON THROUGH THURSDAY
ACROSS THE CASCADES...
.A winter system will move across the region during the afternoon
into evening on Christmas and bring widespread mountain snow to the
Cascades through Thursday.
* WHAT...Heavy snow expected for elevations above 3000 feet. Total
snow accumulations between 6 and 18 inches.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...From 1 PM Wednesday to 10 PM PST Thursday.
* IMPACTS...Heavy snowfall and very low visibility will create
extremely dangerous driving conditions.
