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...EARLY SEASON SNOWFALL TO THE CASCADES THROUGH FRIDAY AFTERNOON... .A cold front will bring a rapid onset of accumulating snow above 4000 to 5000 feet this afternoon and evening. A lull in snow will most likely occur tonight before additional snow showers bring higher snowfall rates to the Cascades Thursday into early Friday. Highest accumulations will be above 5000 feet and in the Linn and Lane County Cascades. * WHAT...Heavy snow expected. Total snow accumulations of 6 to 12 inches above 4000 feet and 12 to 24 inches above 4500 feet. * WHERE...Cascades of Marion and Linn Counties. * WHEN...Until 5 PM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible.

* WHAT...Wet snow expected above 4000 feet. Total snow accumulations of 4 to 8 inches between 4000 and 5000 feet, with up to 16 inches above 5000 feet. * WHERE...East Slopes of the Oregon Cascades. * WHEN...Until 5 PM PDT Friday. * IMPACTS...Significant snowfall with periods of heavy snowfall rates will combine with low visibility to create very difficult driving conditions.

* WHAT...Snow expected at or above elevations greater than 5000 ft. Total snow accumulations between 8 and 10 inches. * WHERE...West Slopes North Cascades and Passes. Primary area of concern will be along Highway 20 in the area of Rainy Pass. * WHEN...From 5 PM this afternoon to 11 PM PDT Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes. * ADDITIONAL DETAILS...A cold front will bring accumulating snow above 5000 feet on Wednesday. A lull in snow will most likely occur Wednesday night into Thursday morning before additional snow showers bring periods of heavier snowfall late Thursday into Friday.

* WHAT...Snow expected at or above elevations greater than 4000 ft. Total snow accumulations between 8 and 20 inches. Winds gusting as high as 40 mph. * WHERE...West Slopes South Central Cascades and Passes. * WHEN...Until 5 PM PDT Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the commutes Wednesday evening through Friday. * ADDITIONAL DETAILS...A cold front will bring accumulating snow above 4000 feet on Wednesday. A lull in snow will most likely occur Wednesday night into Thursday morning before additional snow showers bring periods of heavier snowfall late Thursday into Friday.

* WHAT...Snow above 3500 feet. Snow accumulations 6 to 12 inches. * WHERE...Washington Pass, Loup Loup Pass, Mazama, Highway 20 Wauconda Summit, and Sherman Pass. * WHEN...Until 11 PM PDT Friday. * IMPACTS...Expect winter driving conditions at the mountain passes. * ADDITIONAL DETAILS...Mountain passes will receive the greatest snowfall amounts. There will be a break in the snowfall tonight but will pick up again in the afternoon and evening hours Thursday. Snow will begin to taper off Friday evening.

* WHAT...Wet snow expected above 4000 feet. Total snow accumulations up to 8 inches between 4000 and 5000 feet, with up to 16 inches above 5000 feet. * WHERE...East Slopes of the Oregon Cascades. * WHEN...From 2 PM this afternoon to 5 PM PDT Friday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions. * ADDITIONAL DETAILS...A broad, slow-moving system will bring significant snowfall across the Oregon Cascades this afternoon through Friday. A slight lull in snowfall is forecast tonight before returning Thursday morning.

...EARLY SEASON SNOWFALL TO THE CASCADES THROUGH FRIDAY AFTERNOON... .A cold front will bring a rapid onset of accumulating snow above 4000-5000 feet this afternoon and evening. A lull in snow will most likely occur tonight into Thursday morning before additional snow showers bring higher snowfall rates to the Cascades late Thursday into early Friday. Highest accumulations will be above 5500 feet and in the Lane County Cascades. * WHAT...Snow expected. Total snow accumulations of 6-12 inches except up to 16 inches along the tops of the volcanos (above 5500 feet). * WHERE...In Oregon, North Oregon Cascades and Cascades of Marion and Linn Counties. In Washington, South Washington Cascades. * WHEN...From 2 PM this afternoon to 5 PM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes.

...EARLY SEASON SNOWFALL TO THE CASCADES THROUGH FRIDAY AFTERNOON... .A cold front will bring a rapid onset of accumulating snow above 4000-5000 feet this afternoon and evening. A lull in snow will most likely occur tonight into Thursday morning before additional snow showers bring higher snowfall rates to the Cascades late Thursday into early Friday. Highest accumulations will be above 5500 feet and in the Lane County Cascades. * WHAT...Heavy snow expected. Total snow accumulations up to 12 inches from 3500-5000 feet and up to 24 inches along higher terrain. Up to 30 inches above 6000 feet. * WHERE...Cascades of Lane County. * WHEN...From 2 PM this afternoon to 5 PM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes.

...EARLY SEASON SNOWFALL TO THE CASCADES THROUGH FRIDAY AFTERNOON... .A cold front will bring a rapid onset of accumulating snow above 4000-5000 feet this afternoon and evening. A lull in snow will most likely occur tonight into Thursday morning before additional snow showers bring higher snowfall rates to the Cascades late Thursday into early Friday. Highest accumulations will be above 5500 feet and in the Lane County Cascades. * WHAT...Snow expected. Total snow accumulations of 6-12 inches except up to 16 inches along the tops of the volcanos (above 5500 feet). * WHERE...In Oregon, North Oregon Cascades and Cascades of Marion and Linn Counties. In Washington, South Washington Cascades. * WHEN...From 2 PM this afternoon to 5 PM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes.

* WHAT...Heavy snow expected above 5000 ft. Total snow accumulations 1 to 2 feet. Winds gusting as high as 50 mph. * WHERE...South Central Oregon Cascades, including Crater Lake National Park, Diamond Lake and Highways 230, 62 and 138 as well as Highway 58 at Willamette Pass. * WHEN...From 2 PM this afternoon to 5 PM PDT Friday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds and heavy snow could bring down tree branches. * ADDITIONAL DETAILS...The heaviest snow is expected during the afternoons today and Thursday, when 1 inch per hour rates are likely (70-90% chance), especially on Thursday. There will be a relative lull in snow accumulations late Wednesday night while the region is between fronts.

* WHAT...Heavy snow expected above 5000 ft. Total snow accumulations 1 to 2 feet. Winds gusting as high as 50 mph. * WHERE...Southern Oregon Cascades north of Highway 140. * WHEN...From 2 PM this afternoon to 5 PM PDT Friday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds and heavy snow could bring down tree branches. * ADDITIONAL DETAILS...The heaviest snow is expected during the afternoons today and Thursday, when 1 inch per hour rates are likely (70-90% chance), especially on Thursday. There will be a relative lull in snow accumulations late Wednesday night while the region is between fronts.

* WHAT...Snow expected at or above elevations greater than 4000 ft. Total snow accumulations between 8 and 20 inches. Winds gusting as high as 40 mph. * WHERE...West Slopes South Central Cascades and Passes. * WHEN...From 11 AM this morning to 5 PM PDT Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the commutes Wednesday evening through Friday. * ADDITIONAL DETAILS...A cold front will bring accumulating snow above 4000 feet on Wednesday. A lull in snow will most likely occur Wednesday night into Thursday morning before additional snow showers bring periods of heavier snowfall late Thursday into Friday.

* WHAT...Large breaking waves between 23 and 26 feet. * WHERE...South Central Oregon Coast in Coos, Curry and Douglas Counties. * WHEN...From 11 AM Thursday to 5 AM PDT Friday. * IMPACTS...Large breaking waves will create hazardous conditions along and within the surf zone, and could inundate beaches and low lying shorelines. Beach erosion is possible, and exposed infrastructure may be damaged. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Wet snow expected above 4000 feet. Total snow accumulations up to 8 inches between 4000 and 5000 feet, with up to 16 inches above 5000 feet. * WHERE...East Slopes of the Oregon Cascades. * WHEN...From 2 PM Wednesday to 5 PM PDT Friday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions. * ADDITIONAL DETAILS...A broad, slow-moving system will bring significant snowfall across the Oregon Cascades Wednesday afternoon through Friday. A slight lull in snowfall is forecast Wednesday night before returning Thursday morning.

* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Lower Columbia Basin of Washington. * WHEN...From 1 AM to 9 AM PDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Widespread sub-freezing temperatures are expected across the Lower Columbia Basin of Washington overnight and Wednesday morning, especially in cold-prone areas. Sub-freezing temperatures are not expected to be ubiquitous in the Tri-Cities.

* WHAT...Large breaking waves between 23 and 26 feet. * WHERE...South Central Oregon Coast in Coos, Curry and Douglas Counties. * WHEN...From 11 AM Thursday to 5 AM PDT Friday. * IMPACTS...Large breaking waves will create hazardous conditions along and within the surf zone, and could inundate beaches and low lying shorelines. Beach erosion is possible, and exposed infrastructure may be damaged. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Wet snow expected Above 4000 feet. Total snow accumulations up to 8 inches between 3500 and 5000 feet, with up to 16 inches above 5000 feet. * WHERE...East Slopes of the Oregon Cascades. * WHEN...From 2 PM Wednesday to 5 PM PDT Friday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions. * ADDITIONAL DETAILS...A broad, slow moving system will bring significant snowfall across the Oregon Cascades. There may be a slight lull in snowfall overnight into Thursday morning before returning Thursday afternoon through Friday afternoon.

A frontal system will move through the area Wednesday night. * WHAT...Snow expected at or above elevations greater than 4000 ft. Total snow accumulations of 5 to 9 inches. Winds gusting as high as 35 mph. * WHERE...West Slopes South Central Cascades and Passes. * WHEN...From 2 PM Wednesday to 5 AM PDT Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Wednesday evening commute.

* WHAT...Snow expected. Total snow accumulations 6-12 inches above 4000 feet with 8 to 16 inches above 5000 feet. * WHERE...In Oregon, North Oregon Cascades and Cascades of Marion and Linn Counties. In Washington, South Washington Cascades. * WHEN...From 2 PM Wednesday to 5 PM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. * ADDITIONAL DETAILS...A cold front will bring a rapid onset of accumulating snow above 4000-5000 feet Wednesday afternoon into Wednesday evening. A lull in snow will most likely occur Wednesday night into Thursday morning before additional snow showers bring higher snowfall rates to the Cascades late Thursday into early Friday.

* WHAT...Heavy snow expected. Total snow accumulations of 6-12 inches above 4000 feet and 12-24 inches of snow above 5000 feet. * WHERE...Cascades of Lane County. * WHEN...From 2 PM Wednesday to 5 PM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. * ADDITIONAL DETAILS...A cold front will bring a rapid onset of accumulating snow above 4000-5000 feet Wednesday afternoon into Wednesday evening. A lull in snow will most likely occur Wednesday night into Thursday morning before additional snow showers bring higher snowfall rates to the Cascades late Thursday into early Friday.