Aggregator

* WHAT...Strong valley inversions will result in weak winds, poor mixing and ventilation. This will result in stagnant air conditions that will trap pollutants near the surface. The widespread dense fog has lifted due to incoming higher cloud cover. Isolated locally dense fog is possible through 10 AM. * WHERE...For the Air Stagnation Advisory, Central Douglas County, Eastern Curry County and Josephine County, and Jackson County. This includes the cities of Roseburg, Grants Pass, Cave Junction and Medford. * WHEN...Until 10 AM PST this morning. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.

* WHAT...Snow expected. Total snow accumulations between 1 and 11 inches. Winds gusting as high as 40 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...From 10 AM this morning to 4 AM PST Saturday. * 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.

* WHAT...Snow expected. Total snow accumulations between 1 and 11 inches. Winds gusting as high as 40 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...From 10 AM this morning to 4 AM PST Saturday. * 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.

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Foothills of the Blue Mountains of Oregon. * WHEN...From 4 PM this afternoon to 1 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Grande Ronde Valley. * WHEN...Until 1 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...Visibility as low as one quarter mile in freezing fog. * WHERE...North Central Oregon. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Some roads may be slick under freezing fog as well.

* WHAT...Snow expected at or above elevations greater than 2500 ft. Total snow accumulations up to 6 to 12 inches. Winds gusting as high as 35 mph. * WHERE...West Slopes North Central Cascades and Passes. * WHEN...Until 6 AM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. * ADDITIONAL DETAILS...Convergence zone showers late Friday may locally enhance snowfall amounts and cause heavy snow at times through the central Cascade Passes.

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Foothills of the Blue Mountains of Oregon. * WHEN...From 4 PM this afternoon to 1 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Grande Ronde Valley. * WHEN...Until 1 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...Visibility as low as one quarter mile in freezing fog. * WHERE...North Central Oregon. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Some roads may be slick under freezing fog as well.

* WHAT...Snow expected. Total snow accumulations between 7 and 12 inches. Winds gusting as high as 35 mph. * WHERE...Stevens Pass, and Holden Village. * WHEN...From 6 AM this morning to 6 AM PST Saturday. * IMPACTS...Travel could be very difficult on Highway 2 over Stevens Pass.

* WHAT...Poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Eastern Douglas County Foothills, including Steamboat. * WHEN...Until 10 AM PST Friday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.

* WHAT...For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. * WHERE...Valleys in Central Douglas County and Eastern Curry County and Josephine County. This includes the cities of Roseburg, Sutherlin, Myrtle Creek, Grants Pass, Selma, Cave Junction and surrounding areas. * WHEN...Until 10 AM PST Friday. * IMPACTS...Low visibility in fog could make driving conditions hazardous. Poor air quality may cause issues for people with respiratory problems.

* WHAT...For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. * WHERE...Valleys in Central Douglas County and Eastern Curry County and Josephine County. This includes the cities of Roseburg, Sutherlin, Myrtle Creek, Grants Pass, Selma, Cave Junction and surrounding areas. * WHEN...Until 10 AM PST Friday. * IMPACTS...Low visibility in fog could make driving conditions hazardous. Poor air quality may cause issues for people with respiratory problems.

* WHAT...Strong valley inversions will result in weak winds, poor mixing and ventilation. This will result in stagnant air conditions that will trap pollutants near the surface. * WHERE...Lake County and eastern Klamath County, and Klamath Basin. This includes the cities of Klamath Falls and Lakeview as well as surrounding areas. * WHEN...Until 10 AM PST Friday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.

* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Valleys in Jackson County.This includes the cities of Medford, Ashland, Applegate, Jacksonville, Eagle Point, Rogue River, Steamboat and surrounding areas. * WHEN...Until 10 AM PST Friday. * IMPACTS...Low visibility in fog could make driving conditions hazardous. Poor air quality may cause issues for people with respiratory problems.

* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Valleys in Jackson County.This includes the cities of Medford, Ashland, Applegate, Jacksonville, Eagle Point, Rogue River, Steamboat and surrounding areas. * WHEN...Until 10 AM PST Friday. * IMPACTS...Low visibility in fog could make driving conditions hazardous. Poor air quality may cause issues for people with respiratory problems.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Lane County Lowlands. * WHEN...Until 7 AM PST Friday. * IMPACTS...Low visibility could make driving conditions hazardous.

* WHAT...Snow expected. Total snow accumulations between 6 and 10 inches. Winds gusting as high as 45 mph. * WHERE...Northern Blue Mountains of Oregon and Washington above 4000 feet. This includes Tollgate and Ski Bluewood. * WHEN...From 10 AM Friday to 4 AM PST Saturday. * IMPACTS...Roads will likely become slick and hazardous. Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions. Gusty winds could cause blowing snow. * ADDITIONAL DETAILS...I-84 along Meacham is only expected to see about 1 to 2 inches of snowfall.

* WHAT...Snow expected. Total snow accumulations between 6 and 10 inches. Winds gusting as high as 45 mph. * WHERE...Northern Blue Mountains of Oregon and Washington above 4000 feet. This includes Tollgate and Ski Bluewood. * WHEN...From 10 AM Friday to 4 AM PST Saturday. * IMPACTS...Roads will likely become slick and hazardous. Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions. Gusty winds could cause blowing snow. * ADDITIONAL DETAILS...I-84 along Meacham is only expected to see about 1 to 2 inches of snowfall.