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* WHAT...Heavy snow possible. Total snow accumulations between 6 and 10 inches possible. Winds could gust as high as 30 mph south of Omak. * WHERE...Omak, Disautel Pass, Sherman Pass, Wauconda, Tonasket, Okanogan, Republic, Nespelem, Chesaw Road, Highway 20 Wauconda Summit, Brewster, Bridgeport, Inchelium, Oroville, and Boulder Creek Road. * WHEN...From Tuesday evening through Wednesday evening. * IMPACTS...Travel could be very difficult. Winter travel conditions are expected during the Wednesday morning and evening commutes. * ADDITIONAL DETAILS...Snowfall rates of 1 inch per hour will be possible at times.

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow accumulations up to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 10 and 20 inches possible. Winds could gust as high as 50 mph on the ridgetops and through the passes. * WHERE...Stehekin, Stevens Pass, and Holden Village. * WHEN...For the Winter Storm Warning, until 4 PM PST this afternoon. For the Winter Storm Watch, from Tuesday afternoon through Wednesday evening. * IMPACTS...Travel could be very difficult. Be sure to have a vehicle emergency supply kit when traveling. Areas of blowing snow could significantly reduce visibility. Strong winds could cause damage to trees and power lines. * ADDITIONAL DETAILS...Snowfall rates of 1 to 2 inches per hour will be possible at times.

* WHAT...Heavy snow possible. Total snow accumulations between 9 and 18 inches possible. Winds could gust as high as 50 mph on ridgetops. * WHERE...Conconully, Methow, Mazama, Loup Loup Pass, Twisp, and Winthrop. * WHEN...From Tuesday afternoon through Wednesday evening. * IMPACTS...Travel could be very difficult. Be sure to have a vehicle emergency supply kit when traveling. * ADDITIONAL DETAILS...Snowfall rates of 1 to 2 inches per hour will be possible at times.

* WHAT...Heavy snow possible. Total snow accumulations between 10 and 20 inches possible. Winds could gust as high as 50 mph on the ridgetops. * WHERE...Plain and Leavenworth. * WHEN...From Tuesday afternoon through Wednesday evening. * IMPACTS...Travel could be very difficult. Light snow will develop during the Tuesday evening commute with heavy snow by the Wednesday morning commute. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snowfall rates of 1 to 2 inches per hour will be possible at times.

* WHAT...Heavy snow possible. Total snow accumulations between 4 and 10 inches possible with local amounts near a foot. Winds could gust as high as 45 mph on the Waterville Plateau. * WHERE...Waterville, Number 2 Canyon, Entiat, Number 1 Canyon, Badger Mountain Road, Mansfield, Chelan, Wenatchee, Pangborn Airport, and Cashmere. * WHEN...From Tuesday afternoon through Wednesday evening. * IMPACTS...Travel could be very difficult. Light snow will develop during the Tuesday evening and heavy snow will be possible by the Wednesday morning commute. Gusty winds could bring down tree branches and create blowing snow over the Waterville Plateau. * ADDITIONAL DETAILS...Snowfall rates of 1 inch per hour will be possible at times.

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow accumulations up to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 10 and 20 inches possible. Winds could gust as high as 50 mph on the ridgetops and through the passes. * WHERE...Stehekin, Stevens Pass, and Holden Village. * WHEN...For the Winter Storm Warning, until 4 PM PST this afternoon. For the Winter Storm Watch, from Tuesday afternoon through Wednesday evening. * IMPACTS...Travel could be very difficult. Be sure to have a vehicle emergency supply kit when traveling. Areas of blowing snow could significantly reduce visibility. Strong winds could cause damage to trees and power lines. * ADDITIONAL DETAILS...Snowfall rates of 1 to 2 inches per hour will be possible at times.

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...North and Central Coast of Oregon. * WHEN...From Tuesday afternoon through late Tuesday night. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strongest winds near the beaches and headlands.

* WHAT...Heavy snow above 2000 feet. Additional snow accumulations of 10 to 15 inches, locally higher near the crest line. Winds gusting as high as 35 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 10 PM PST this evening. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Light snow accumulations will continue after the warning expires into Tuesday morning with limited additional impacts.

* WHAT...Heavy snow above 2000 feet. Additional snow accumulations up to 8 inches, with up to 10 to 12 inches above 2500 feet and up to 1 inch below 2000 feet. * WHERE...Foothills of the Northern and Central Oregon Cascades. * WHEN...Until 10 PM PST this evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Light snow accumulations will continue after the warning expires into Tuesday morning with limited additional impacts.

* WHAT...Heavy snow above 2000 feet. Additional snow accumulations of 10 to 15 inches, locally higher near the crest line. Winds gusting as high as 35 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 10 PM PST this evening. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Light snow accumulations will continue after the warning expires into Tuesday morning with limited additional impacts.

* WHAT...Wet snow. Additional snow accumulations up to 4 inches above 2000 feet, except up to 9 inches above 2500 feet. * WHERE...North and Central Coast Range Mountains of Oregon. * WHEN...Until 10 PM PST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning and evening commutes.

* WHAT...Heavy snow Above 4000 ft. Additional snow accumulations of 4 to 7 inches. Winds gusting as high as 40 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...Until 10 PM PST Monday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions.

* WHAT...Heavy snow above 2500 ft. Additional snow accumulations of 4 to 8 inches at pass level and 8 to 12 inches over the Cascade crest. Winds gusting as high as 35 mph. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...Until 10 PM PST Monday. * IMPACTS...Significant snowfall with periods of heavy snowfall rates will combine with low visibility to create very difficult driving conditions.

* WHAT...Heavy snow Above 4000 ft. Additional snow accumulations of 4 to 7 inches. Winds gusting as high as 40 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...Until 10 PM PST Monday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions.

* WHAT...Heavy snow expected mainly along the Cascade crest with additional snow accumulations between 6 and 12 inches. Lower elevations including LaPine, Sunriver, Sisters and Camp Sherman will see lesser amounts of additional snow between 1 to 3 inches. Winds gusting as high as 35 mph may cause some blowing snow mainly along the Cascade crest. * WHERE...East Slopes of the Oregon Cascades. * WHEN...Until 10 PM PST Monday. * IMPACTS...Heavy snowfall and very low visibility will create extremely dangerous driving conditions. Gusty winds could bring down tree branches.

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...Through Monday evening. * IMPACTS...Waves can run up significantly farther on a beach than normal, including over rocks and jetties. Sneaker waves can suddenly knock people off of their feet and quickly pull them into the frigid ocean which may lead to serious injury or drowning.

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...Through Monday evening. * IMPACTS...Waves can run up significantly farther on a beach than normal, including over rocks and jetties. Sneaker waves can suddenly knock people off of their feet and quickly pull them into the frigid ocean which may lead to serious injury or drowning.

* WHAT...South winds 30 to 50 mph with gusts up to 70 mph possible. * WHERE...Lake County and eastern Klamath County, and Modoc County. This includes Silver Lake, Summer Lake, Paisley, Adel, the Warner Mountains, and portions of Highways 31, 140, and 395. * WHEN...From Tuesday afternoon through Wednesday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...After Wednesday morning, additional episodes of strong winds are possible during the remainder of the week.

* WHAT...South winds 30 to 50 mph with gusts up to 70 mph possible. * WHERE...Curry County Coast, Eastern Curry County, and the South Central Oregon Coast. This includes southern Oregon beaches, headlands, and exposed locations. Also, portions of Highway 101. * WHEN...From Tuesday afternoon through late Tuesday night. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.

* WHAT...Heavy snow at or above elevations greater than 2000 ft. Additional snow accumulations between 6 and 12 inches. * WHERE...West Slopes North Cascades and Passes, West Slopes North Central Cascades and Passes, and West Slopes South Central Cascades and Passes. * WHEN...Until 10 AM PST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult.