Aggregator

* WHAT...Heavy snow. Additional snow accumulations of 6 to 10 inches above 4000 feet. Winds gusting as high as 55 mph with blowing snow. * WHERE...East Slopes of the Oregon Cascades. * WHEN...Until 10 PM PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions. Strong winds could cause extensive damage to trees and power lines.

* WHAT...Snow. Additional snow accumulations of 4 to 10 inches above 4000 feet. Winds gusting as high as 45 mph with blowing snow. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...Until 4 PM PST Thursday. * 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. * ADDITIONAL DETAILS...Steady snow overnight will turn to snow showers Thursday morning and afternoon.

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches above 4500 feet and up to 2 inches between 4000 and 4500 feet. Winds gusting as high as 50 mph with blowing snow. * WHERE...Ochoco-John Day Highlands. * WHEN...Until 4 PM PST Thursday. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Steady snow overnight will turn to snow showers Thursday morning and afternoon.

* WHAT...Heavy snow. Total snow accumulations between 12 and 24 inches. Winds gusting as high as 45 mph. * WHERE...Stehekin, Stevens Pass, and Holden Village. * WHEN...Until 10 PM PST Thursday. * IMPACTS...Travel could be very difficult leading up to and over Stevens Pass. Heavy wet snow falling at one inch per hour or more at times could lead to isolated tree damage and power outages. Areas of blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Lighter snow amounts will be possible at Stehekin due to marginal temperatures near or above freezing.

* WHAT...Heavy snow. Total snow accumulations between 8 and 15 inches. Winds gusting as high as 35 mph. * WHERE...Mazama, Loup Loup Pass, Twisp, Winthrop, Methow, and Conconully. * WHEN...Until 1 PM PST Thursday. * IMPACTS...Travel could be very difficult. Heavy wet snow falling at one inch per hour or more at times could lead to isolated tree damage and power outages.

* WHAT...Snow expected. Total snow accumulations between 2 and 6 inches in the valleys and 5 to 8 inches in the mountains. * WHERE...Tiger, Springdale-Hunters Road, Colville, Fruitland, Orin-Rice Road, Kettle Falls, Chewelah, Metaline Falls, Newport, Northport, Ione, Deer Park, Flowery Trail Road, and Metaline. * WHEN...Until 1 PM PST Thursday. * IMPACTS...Lowest confidence in snow amounts is along the Columbia and Pend Oreille Rivers where warmer temperatures could limit accumulations. * ADDITIONAL DETAILS...Lowest confidence in snow amounts is along the Columbia and Pend Oreille Rivers where warmer temperatures could limit accumulations.

* WHAT...Heavy snow. Total snow accumulations between 4 and 10 inches. * WHERE...Boulder Creek Road, Sherman Pass, Republic, Wauconda, Chesaw Road, Inchelium, and Highway 20 Wauconda Summit. * WHEN...Until 1 PM PST Thursday. * IMPACTS...Travel could be very difficult. Heavy wet snow falling at one inch per hour or more at times could lead to isolated tree damage and power outages.

* WHAT...Heavy snow. Total snow accumulations between 9 and 16 inches. * WHERE...Leavenworth and Plain. * WHEN...Until 1 PM PST Thursday. * IMPACTS...Travel could be very difficult. Heavy wet snow falling at one inch per hour or more at times could lead to isolated tree damage and power outages. * ADDITIONAL DETAILS...The heaviest snow is expected to fall between 10PM and 4AM Thursday.

* WHAT...Heavy snow. Total snow accumulations between 2 and 6 inches below 2500 feet and 6 to 10 inches on higher benches above 2500 feet. * WHERE...Omak, Tonasket, Oroville, Okanogan, Bridgeport, Brewster, Waterville, Badger Mountain Road, Nespelem, Disautel Pass, and Mansfield. * WHEN...Until 7 AM PST Thursday. * IMPACTS...Travel could be very difficult. Snowfall rates of one inch per hour are expected at times Christmas night into early Thursday morning. * ADDITIONAL DETAILS...Lowest confidence in snow amounts is along the Columbia and Okanogan Rivers where warmer temperatures could limit accumulations.

* WHAT...Heavy snow. Snow accumulations between 4 and 8 inches. * WHERE...Number 2 Canyon, Entiat, Cashmere, Number 1 Canyon, Wenatchee, Chelan, and Pangborn Airport. * WHEN...Until 7 AM PST Thursday. * IMPACTS...Travel could be very difficult. Snowfall rates of one inch per hour are expected at times Christmas night into early Thursday morning. * ADDITIONAL DETAILS...Total snow accumulations between 1 and 4 inches at lower elevations near the Columbia River.

* WHAT...Snow expected for the Highway 2 Corridor Across the Upper Columbia Basin. Total snow accumulations between 2 and 5 inches. Winds gusting as high as 35 mph. * WHERE...Grand Coulee, Wilbur, Creston, and Coulee City. * WHEN...Until 7 AM PST Thursday. * IMPACTS...Plan on slippery road conditions.

* WHAT...Wet snow. Total snow accumulations between 2 and 5 inches. * WHERE...Quincy and Ephrata. * WHEN...Until 4 AM PST Thursday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Temperatures will warm above freezing early Thursday morning and snow will change over to rain.

* WHAT...Snow expected. Total snow accumulations between 12 to 20 inches, with up to 30 inches near Crater Lake and Mount Shasta Ski area. Winds gusting as high as 70 mph. * WHERE...The southern Oregon Cascades north of Highway 140 including Crater Lake National Park, highways 62, 138, and 51 at Willamette Pass. Marble Mountains including Sawyer Bar Road near Mount Etna, and the pass at Snowmans Hill Summit. * WHEN...From Wednesday late afternoon through Friday morning. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact this evening and the Thursday morning commutes. Very strong winds could cause extensive damage to trees and power lines.

* WHAT...Snow. Total snow accumulations between 3 to 8 inches with higher amounts of 8 to 14 inches above 5000 feet elevation. Winds gusting as high as 35 mph in the valleys and 60 mph over the mountains. * WHERE...Northern and Eastern Klamath County and Western Lake County County. This includes portions of Highway 97 north of Chiloquin and Highway 140 between Dairy and Lakeview. * WHEN...Until 4 AM PST Friday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Thursday morning and evening commutes. Strong winds could cause extensive damage to trees and power lines. * ADDITIONAL DETAILS...Snow levels will fluctuate between 4000 and 5000 feet. Periods of moderate snow are likely tonight and Thursday morning and again Thursday evening through early Friday morning.

* WHAT...Snow expected above 4500 feet. From 4500 feet to 5000 feet, total snow accumulation up to 6 to 11 inches. Above 5000 feet, total snow accumulations of 10 to 18 inches. Winds gusting as high as 45 mph tonight into Thursday. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 10 PM PST Thursday. * IMPACTS...Travel could be very difficult. Gusty winds could bring down tree branches.

* WHAT...Snow expected above 4500 feet. From 4500 feet to 5000 feet, total snow accumulation up to 6 to 11 inches. Above 5000 feet, total snow accumulations of 10 to 18 inches. Winds gusting as high as 45 mph tonight into Thursday. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 10 PM PST Thursday. * IMPACTS...Travel could be very difficult. Gusty winds could bring down tree branches.

* WHAT...Heavy wet snow. As of 730 PM PST Dec. 25th, around 6 inches of snow has already fallen in the Parkdale area. Accumulating snow is also occurring in Odell, with snow mixing in with rain in Hood River. Another 2 to 6 inches of snow is possible Wednesday night from Odell to Parkdale, heaviest in Parkdale. A dusting to one inch of snow is possible in Hood River. Temperatures should warm above freezing towards sunrise Thursday with snow transitioning to rain. * WHERE...Upper Hood River Valley. * WHEN...Until 5 AM PST Thursday. * IMPACTS...Plan on slippery road conditions.

AVWOTX The following message is transmitted at the request of the Northwest Avalanche Center. ...The Northwest Avalanche Center in Seattle has issued an Avalanche Warning... * WHAT...High avalanche danger is forecast Wednesday night and Thursday. * WHERE...Stevens and Snoqualmie Passes, the west slopes of the Washington Cascades, and Mt Hood. * WHEN...In effect from 18:00 PST Wed Dec 25th through 18:00 PST Thu Dec 26th. * IMPACTS...Heavy snow, strong winds, and a low-elevation transition from snow to rain will lead to very dangerous avalanche conditions through Thursday. High avalanche danger creates risk at all elevations. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions exist over the next 24 hours. Travel in avalanche terrain is not recommended. Consult https://www.nwac.us/ or www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.

AVWPDT The following message is transmitted at the request of the Northwest Avalanche Center. ...The Northwest Avalanche Center in Seattle has issued an Avalanche Warning... * WHAT...High avalanche danger is forecast Wednesday night and Thursday. * WHERE...Stevens and Snoqualmie Passes, the west slopes of the Washington Cascades, and Mt Hood. * WHEN...In effect from 18:00 PST Wed Dec 25th through 18:00 PST Thu Dec 26th. * IMPACTS...Heavy snow, strong winds, and a low-elevation transition from snow to rain will lead to very dangerous avalanche conditions through Thursday. High avalanche danger creates risk at all elevations. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions exist over the next 24 hours. Travel in avalanche terrain is not recommended. Consult https://www.nwac.us/ or www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.

AVWPQR The following message is transmitted at the request of the Northwest Avalanche Center. ...The Northwest Avalanche Center in Seattle has issued an Avalanche Warning... * WHAT...High avalanche danger is forecast Wednesday night and Thursday. * WHERE...Stevens and Snoqualmie Passes, the west slopes of the Washington Cascades, and Mt Hood. * WHEN...In effect from 18:00 PST Wed Dec 25th through 18:00 PST Thu Dec 26th. * IMPACTS...Heavy snow, strong winds, and a low-elevation transition from snow to rain will lead to very dangerous avalanche conditions through Thursday. High avalanche danger creates risk at all elevations. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions exist over the next 24 hours. Travel in avalanche terrain is not recommended. Consult https://www.nwac.us/ or www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.