Aggregator

* WHAT...Snow. Additional snow accumulations up to one inch. * WHERE...Eastern Columbia River Gorge of Oregon and Washington. * WHEN...Until 10 AM PST Friday. * IMPACTS...Even light snowfall amounts can accumulate on roads and cause dangerous driving conditions due to slippery and snow-covered roads. The hazardous conditions could impact the Friday morning commute.

* WHAT...Snow. Additional snow accumulations up to one inch. * WHERE...Central Oregon. * WHEN...Until 10 AM PST Friday. * IMPACTS...Even light snowfall amounts can accumulate on roads and cause dangerous driving conditions due to slippery and snow-covered roads. The hazardous conditions could impact the Friday morning commute.

* WHAT...Wet snow. Additional snow accumulations of 1 to 2 inches. * WHERE...Hood Canal Area, Lower Chehalis Valley Area, and Southwest Interior. * WHEN...Until 10 AM PST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday evening and Friday morning commutes.

* WHAT...Wet snow. Additional snow accumulations of 1 to 2 inches. * WHERE...Tacoma Area. * WHEN...Until 10 AM PST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday evening and Friday morning commutes.

* WHAT...Wet snow. Additional snow accumulations of 1 to 2 inches. * WHERE...East Puget Sound Lowlands. * WHEN...Until 10 AM PST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday evening and Friday morning commutes. * ADDITIONAL DETAILS...Heaviest accumulations are expected from I-90 and southward. Little or no accumulation is expected north of King County.

The threat has ended.

* WHAT...Snow and areas of blowing snow expected. Additional snow accumulation of up to 1 inch in the Upper Treasure and Magic Valleys including the Boise metro, with an additional 1 to 3 inches in the Lower Treasure Valley. There is a chance of freezing rain in the Treasure Valley and Western Magic Valley late tonight through Friday morning. An additional 3 to 6 inches possible in the mountains and Camas Prairie, and across northern Malheur and Harney Counties. Winds gusting as high as 40 mph causing areas of blowing and drifting snow. * WHERE...Portions of south central, southwest, and west central Idaho and northeast and southeast Oregon. * WHEN...Until 11 AM MST /10 AM PST/ Friday. * IMPACTS...Snow covered roads causing slick conditions combined with blowing snow will cause hazardous conditions. Travel will remain difficult through the evening commute.

* WHAT...Snow and blowing snow expected. Total snow accumulations between two and four inches. Winds gusting as high as 50 mph in the western Columbia River Gorge. Strong winds may loft snow and result in visibility falling below half a mile. * WHERE...Western and Central Columbia River Gorge, the Corbett area and the Hood River Valley. * WHEN...Until 10 PM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

* WHAT...Snow expected. Total snow accumulations of four to eight inches. Winds gusting as high as 35 mph. * WHERE...Northern and Central Cascades and Foothills in Oregon, and South Washington Cascades. * WHEN...Until 10 PM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

* WHAT...Mixed precipitation. Total snow accumulations of one to three inches and ice accumulations around a light glaze. Winds gusting as high as 35 mph. * WHERE...Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, and South Washington Cascade Foothills. * WHEN...Until 4 PM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

* WHAT...Heavy mixed precipitation. Total snow accumulations of one to four inches and ice accumulations around a light glaze. * WHERE...Lower Columbia River and Cowlitz River Valleys. * WHEN...Until noon PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

* WHAT...Heavy mixed precipitation. Total snow accumulations of one to three inches and ice accumulations around one tenth of an inch. Winds gusting as high as 40 mph in the eastern Portland/Vancouver Metro. * WHERE...Portland Metro Lowlands, Greater Vancouver Metro, and Portland West Hills and Chehalem Mountain. * WHEN...Until 10 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Significant ice accumulation on power lines and tree limbs may cause power outages.

* WHAT...Mixed precipitation. Total snow accumulations up to one inch and ice accumulations around a light glaze. * WHERE...Clatsop County and Tillamook County Coast, and South Washington Coast. * WHEN...Until 4 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Precipitation will transition over to primarily freezing rain this afternoon. The Thursday evening commute will be affected. Due to areas of freezing rain, power outages are possible.

* WHAT...Snow and blowing snow expected. Total snow accumulations between two and four inches. Winds gusting as high as 50 mph in the western Columbia River Gorge. Strong winds may loft snow and result in visibility falling below half a mile. * WHERE...Western and Central Columbia River Gorge, the Corbett area and the Hood River Valley. * WHEN...Until 10 PM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

* WHAT...Snow expected. Total snow accumulations of four to eight inches. Winds gusting as high as 35 mph. * WHERE...Northern and Central Cascades and Foothills in Oregon, and South Washington Cascades. * WHEN...Until 10 PM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

* WHAT...Heavy mixed precipitation. Total snow accumulations of one to four inches and ice accumulations around a light glaze. * WHERE...Lower Columbia River and Cowlitz River Valleys. * WHEN...Until noon PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

* WHAT...Heavy mixed precipitation. Total snow accumulations of one to three inches and ice accumulations around one tenth of an inch. Winds gusting as high as 40 mph in the eastern Portland/Vancouver Metro. * WHERE...Portland Metro Lowlands, Greater Vancouver Metro, and Portland West Hills and Chehalem Mountain. * WHEN...Until 10 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Significant ice accumulation on power lines and tree limbs may cause power outages.

* WHAT...Heavy mixed precipitation expected. Total snow accumulations of two to four inches and ice accumulations around one tenth of an inch. * WHERE...North Oregon Coast Range, North Oregon Coast Range Lowlands, and Outer Southeast Portland Metro. * WHEN...Until 10 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Significant ice accumulation on power lines and tree limbs may cause power outages.

* WHAT...Mixed precipitation. Total snow accumulations up to one inch and ice accumulations around a light glaze. * WHERE...Clatsop County and Tillamook County Coast, and South Washington Coast. * WHEN...Until 4 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Precipitation will transition over to primarily freezing rain this afternoon. The Thursday evening commute will be affected. Due to areas of freezing rain, power outages are possible.

* WHAT...Significant icing. Total ice accumulations between one tenth and three tenths of an inch. * WHERE...Central and Southern Willamette Valley, Central Oregon Coast Range Lowlands, and Central Oregon Coast Range. * WHEN...Until 4 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Significant ice accumulation on power lines and tree limbs may cause widespread and long-lasting power outages. * ADDITIONAL DETAILS...Precipitation will transition over to primarily freezing rain this afternoon. The Thursday evening commute will be affected. Due to areas of freezing rain, power outages are possible.