Aggregator

* WHAT...Snow above 4000 feet. Additional snow accumulations up to 10 inches. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 11 PM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...For the advisory, locally higher amounts at elevations above 5500 feet. Heaviest snow will fall after 11 AM Friday.

* WHAT...Snow above 4000 feet. Additional snow accumulations up to 10 inches. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 11 PM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...For the advisory, locally higher amounts at elevations above 5500 feet. Heaviest snow will fall after 11 AM Friday.

* WHAT...Snow expected. Total snow accumulations between 6 and 10 inches. Winds gusting as high as 40 mph. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...From 11 AM Friday to 5 AM PDT Saturday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions.

* WHAT...Wet snow expected. Total snow accumulations of 6 to 10 inches. Winds gusting as high as 40 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...From 11 AM to 11 PM PDT Friday. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow.

* WHAT...Wet snow expected. Total snow accumulations of 6 to 10 inches. Winds gusting as high as 40 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...From 11 AM to 11 PM PDT Friday. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow.

* WHAT...Wet snow expected. Total snow accumulations 7 to 12 inches. Winds gusting as high as 45 mph. * WHERE...East Slopes of the Oregon Cascades. * WHEN...Until 11 PM PDT Friday. * IMPACTS...Periods of moderate and heavy snowfall combined with gusty winds may lead to low visibilities and create difficult driving conditions.

* WHAT...Heavy snow expected. Total snow accumulations of 12 to 20 inches tonight through Saturday morning. Winds gusting as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Roads, especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible.

* WHAT...Snow. Additional snow accumulations up to 6 inches through early Friday morning, followed by another 6 to 8 inches late Friday through early Saturday. Winds gusting as high as 45 mph. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Roads, especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Snow levels will rise above Snoqualmie Pass at times tonight and early Friday, before lowering again late Friday night. This will lead to periods of rain and lower snow totals at the pass compared to higher elevations.

* WHAT...Snow expected. Total snow accumulations between 6 and 12 inches. * WHERE...Elevations above 5500 feet in the South Central Oregon Cascades. This includes Crater Lake, Willamette Pass on highway 58 and areas near Diamond Lake Junction on highways 230 and 138. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday morning and evening commutes.

* WHAT...Heavy snow expected. Total snow accumulations of 12 to 20 inches tonight through Saturday morning. Winds gusting as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Roads, especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible.

* WHAT...Snow. Additional snow accumulations up to 6 inches through early Friday morning, followed by another 6 to 8 inches late Friday through early Saturday. Winds gusting as high as 45 mph. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Snow levels will rise above Snoqualmie Pass at times tonight and early Friday, before lowering again late Friday night. This will lead to periods of rain and lower snow totals at the pass compared to higher elevations.

* WHAT...For the first Winter Weather Advisory, snow. Additional snow accumulations up to 4 inches. Winds gusting as high as 35 mph on exposed ridgelines. For the second Winter Weather Advisory, snow expected. Total snow accumulations between 6 and 10 inches. Winds gusting as high as 35 mph on exposed ridgelines. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...For the first Winter Weather Advisory, until 11 PM PDT this evening. For the second Winter Weather Advisory, from 11 AM Friday to 5 AM PDT Saturday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions.

* WHAT...For the first Winter Weather Advisory above 4500 feet, snow. Additional snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph on exposed ridgelines. For the second Winter Weather Advisory, wet snow expected. Total snow accumulations of 6 to 10 inches. Winds gusting as high as 40 mph on exposed ridgelines. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...For the first Winter Weather Advisory, until 11 PM PDT this evening. For the second Winter Weather Advisory, from 11 AM to 11 PM PDT Friday. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow.

* WHAT...For the first Winter Weather Advisory above 4500 feet, snow. Additional snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph on exposed ridgelines. For the second Winter Weather Advisory, wet snow expected. Total snow accumulations of 6 to 10 inches. Winds gusting as high as 40 mph on exposed ridgelines. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...For the first Winter Weather Advisory, until 11 PM PDT this evening. For the second Winter Weather Advisory, from 11 AM to 11 PM PDT Friday. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow.

* WHAT...For the first Winter Weather Advisory, snow. Additional snow accumulations up to 4 inches. Winds gusting as high as 35 mph on exposed ridgelines. For the second Winter Weather Advisory, snow expected. Total snow accumulations between 6 and 10 inches. Winds gusting as high as 35 mph on exposed ridgelines. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...For the first Winter Weather Advisory, until 11 PM PDT this evening. For the second Winter Weather Advisory, from 11 AM Friday to 5 AM PDT Saturday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions.

* WHAT...For the first Winter Weather Advisory above 4500 feet, snow. Additional snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph on exposed ridgelines. For the second Winter Weather Advisory, wet snow expected. Total snow accumulations of 6 to 10 inches. Winds gusting as high as 40 mph on exposed ridgelines. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...For the first Winter Weather Advisory, until 11 PM PDT this evening. For the second Winter Weather Advisory, from 11 AM to 11 PM PDT Friday. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow.

* WHAT...For the Winter Storm Warning above 4000 feet, heavy snow. Additional snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph on exposed ridgelines. For the Winter Weather Advisory, snow expected. Total snow accumulations of 7 to 12 inches. Winds gusting as high as 45 mph on exposed ridgelines. * WHERE...East Slopes of the Oregon Cascades. * WHEN...For the Winter Storm Warning, until 11 PM PDT this evening. For the Winter Weather Advisory, from 11 PM this evening to 11 PM PDT Friday. * IMPACTS...Significant snowfall with periods of heavy snowfall rates will combine with breezy winds to create low visibility and difficult driving conditions.

* WHAT...For the first Winter Weather Advisory above 4500 feet, snow. Additional snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph on exposed ridgelines. For the second Winter Weather Advisory, wet snow expected. Total snow accumulations of 6 to 10 inches. Winds gusting as high as 40 mph on exposed ridgelines. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...For the first Winter Weather Advisory, until 11 PM PDT this evening. For the second Winter Weather Advisory, from 11 AM to 11 PM PDT Friday. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow.

* WHAT...For the Winter Storm Warning above 4000 feet, heavy snow. Additional snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph on exposed ridgelines. For the Winter Weather Advisory, snow expected. Total snow accumulations of 7 to 12 inches. Winds gusting as high as 45 mph on exposed ridgelines. * WHERE...East Slopes of the Oregon Cascades. * WHEN...For the Winter Storm Warning, until 11 PM PDT this evening. For the Winter Weather Advisory, from 11 PM this evening to 11 PM PDT Friday. * IMPACTS...Significant snowfall with periods of heavy snowfall rates will combine with breezy winds to create low visibility and difficult driving conditions.

A series of winter systems move in through the end of the week bringing heavy snow to the Cascades. The ongoing system will be the most snow heavy, while the second that arrives on Friday will be slightly warmer with less accumulating snow. Snow levels rise Friday night. * WHAT...For the Winter Storm Warning, heavy snow. Additional snow accumulations up to 6 inches. For the Winter Weather Advisory above 4000 feet, snow expected. Total snow accumulations up to 10 inches. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...For the Winter Storm Warning, until 11 PM PDT this evening. For the Winter Weather Advisory, from 11 PM this evening to 11 PM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...For the advisory, locally higher amounts at elevations above 5500 feet. Heaviest snow will fall after 11 AM Friday.