* WHAT...Snow expected above 4000 feet. From 4000 feet to 5000 feet,
total snow accumulations appear most likely to range between 3 and
12 inches, with the lowest amounts near 4000 feet. Above 5000-5500
feet, total snow accumulations of 12 to 18 inches.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...Until 7 PM PST Friday.
* IMPACTS...Travel could be difficult at times. Be prepared for snow
covered roads and slick surfaces.
* ADDITIONAL DETAILS...An active storm track will continue to
produce accumulating snow across the passes in the Cascades into
this weekend. However, there are two time periods when snow levels
appear likely to rise to 5000-5500 feet and be far enough above
the passes to temporarily limit snow accumulations. The first
window where snow levels will rise above the passes appears most
likely to occur between 3 AM Friday and 9 AM Friday. Another round
of warmer air aloft will most likely push snow levels above the
passes Friday night as well.
* WHAT...Heavy snow. Additional snow accumulations between 2 and 8
inches. Winds gusting as high as 50 mph mainly on the ridgetops.
* WHERE...Holden Village, Stevens Pass, and Stehekin.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Travel could be very difficult leading up to and over
Stevens Pass. Heavy snow could lead to isolated tree damage and
power outages. Areas of blowing snow could significantly reduce
visibility where westerly winds align with the terrain.
* 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...Until 4 PM PST Friday.
* 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...Sneaker waves may be possible at times.
* WHAT...Large breaking waves of 17 to 22 feet in the surf zone.
* WHERE...North Coast zone.
* WHEN...Until 10 AM PST Friday.
* 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.
* WHAT...Large breaking waves of 17 to 22 feet in the surf zone.
* WHERE...North Coast zone.
* WHEN...Until 10 AM PST Friday.
* 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...The threat for coastal flooding has
decreased this morning as the high tide as passed, so the
coastal flood advisory has been cancelled. High surf conditions
will continue through Friday morning.
* WHAT...Large breaking waves of 17 to 22 feet in the surf zone.
* WHERE...Central Coast zone.
* WHEN...Until 10 AM PST Friday.
* 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...The threat for coastal flooding has
decreased this morning as the high tide as passed, so the
coastal flood warning has been cancelled. High surf conditions
will continue through Friday morning.
* WHAT...Minor coastal flooding. Inundation of around 2.0 to 2.2
feet above ground level is possible along shorelines and low-
lying coastal areas.
* WHERE...Eastern Strait of Juan de Fuca and Western Strait of
Juan De Fuca zones.
* WHEN...Until 2 PM PST this afternoon.
* 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...Southwest winds 15 to 30 mph with gusts 40 to 55 mph.
* WHERE...Colfax, Moscow, Airway Heights, Grand Coulee, Spokane
Valley, Genesee, Post Falls, Potlatch, Fairfield, Odessa, Fourth
Of July Pass, Oakesdale, Fernwood, La Crosse, Coulee City, Cheney,
St. Maries, Coeur d'Alene, Ritzville, Pullman, Creston, Plummer,
Uniontown, Lookout Pass, Downtown Spokane, Osburn, Mullan, Worley,
Dobson Pass, Pinehurst, Wilbur, Hayden, Davenport, Wallace,
Rockford, Rosalia, Kellogg, Tekoa, and Harrington.
* WHEN...Until 5 PM PST this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Some
tree damage is possible along with a few power outages.
* ADDITIONAL DETAILS...Peak wind gusts are expected Thursday morning
and early afternoon then slowly decreasing Thursday near sunset.
* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph. Wind
gusts near 30 mph in Clarkston.
* WHERE...Clarkston, Pomeroy, and Alpowa Summit.
* WHEN...Until 5 PM PST this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
...The National Weather Service in Portland OR has issued a Flood
Warning for the following rivers in Washington...
Grays River at Covered Bridge near Rosburg affecting Wahkiakum
County.
* WHAT...Minor flooding is occurring.
* WHERE...Grays River at Covered Bridge near Rosburg.
* WHEN...From this morning to late this afternoon.
* IMPACTS...Above 28.5 feet, expect some flooding of roads along and
near the Grays River, especially downstream of the gage, including
roadway approaches to the Altoona Bridge over the Grays, and
portions of Covered Bridge Road, Barr-Durrah Road, and Loop Road
near Rosburg and Hwy 4.
* ADDITIONAL DETAILS...
- At 9:15 AM PST Thursday the stage was 28.6 feet.
- Bankfull stage is 27.5 feet.
- Forecast...The river will crest around 28.8 feet late this
morning. It will fall below flood stage early this afternoon
and continue to drop through the rest of the day.
- Flood stage is 28.5 feet.
- http://www.weather.gov/safety/flood
* WHAT...Heavy snow above 3500 feet. Additional snow accumulations
up to 6 inches. Winds gusting as high as 45 mph.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be difficult due
to periods of moderate to heavy snow. Gusty winds could bring down
tree branches.
* WHAT...Snow above 4000 feet. Additional snow accumulations up to
two inches. Winds gusting as high as 45 mph.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Plan on slippery road
conditions. Gusty winds could bring down tree branches.
* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph
expected. Strongest winds across the Hanford Area.
* WHERE...Lower Columbia Basin of Washington.
* WHEN...Until 3 PM PST this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph 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...Until 3 PM PST this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Southwest winds 15 to 25 mph with gusts up to 50 mph.
* WHERE...Hood Canal Area, Bellevue and Vicinity, Bremerton and
Vicinity, East Puget Sound Lowlands, Everett and Vicinity, Lower
Chehalis Valley Area, Seattle and Vicinity, Southwest Interior,
and Tacoma Area.
* WHEN...Until 1 PM PST this afternoon.
* IMPACTS...Gusty winds could blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Winds will be strongest from Seattle
southward through this morning. There will be a range of peak wind
gusts from 30 to 50 MPH.
* WHAT...Southeast winds 15 to 25 mph with gusts up to 45 mph will
transition to west winds this morning with localized gusts up to
60 MPH.
* WHERE...Admiralty Inlet Area.
* WHEN...Until 1 PM PST this afternoon.
* 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...Southwest winds 15 to 25 mph with gusts up to 45 mph.
* WHERE...San Juan County and Western Skagit County.
* WHEN...Until 1 PM PST this afternoon.
* IMPACTS...Gusty winds could blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Winds will transition westerly mid-morning,
with localized gusts up to 45 MPH, especially for areas adjacent
to the Strait of Juan de Fuca.
* WHAT...West winds 20 to 30 mph with gusts up to 50 mph. Localized
gusts up to 55 MPH.
* WHERE...Central Coast.
* WHEN...Until 11 AM PST this morning.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* ADDITIONAL DETAILS...West winds will slowly taper off later this
morning into the afternoon.
* WHAT...Southwest winds 15 to 30 mph with gusts of 40 to 50 mph.
* WHERE...St. Maries, Harrington, Odessa, Downtown Spokane, Mullan,
La Crosse, Rosalia, Potlatch, Wilbur, Kellogg, Fourth Of July
Pass, Genesee, Coeur d'Alene, Fairfield, Spokane Valley, Hayden,
Grand Coulee, Cheney, Worley, Pullman, Lookout Pass, Dobson Pass,
Wallace, Creston, Pinehurst, Ritzville, Fernwood, Coulee City,
Moscow, Osburn, Oakesdale, Post Falls, Plummer, Rockford, Tekoa,
Airway Heights, Davenport, Colfax, and Uniontown.
* WHEN...Until 3 PM PST this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph.
* WHERE...Clarkston, Alpowa Summit, and Pomeroy.
* WHEN...Until 3 PM PST this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Strongest winds will be around Pomeroy and
Alpowa Summit with low probabilities for winds in excess of 40 mph
in Clarkston.
