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* WHAT...South winds 15 to 30 mph with gusts up to 50 mph. Strongest winds along exposed ridgetops and southern areas of Ferry County. * WHERE...Boulder Creek Road, Inchelium, Highway 20 Wauconda Summit, Sherman Pass, Chesaw Road, Wauconda, and Republic. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Strongest winds will occur Wednesday night into early Thursday morning.

* WHAT...Heavy snow expected above 4000 feet. Additional snow accumulations between 3 and 7 inches. Winds gusting as high as 60 mph. * WHERE...Mountain Road, Cloverland Road, and Peola. * WHEN...Until 4 PM PST Thursday. * IMPACTS...Travel could be very difficult travel. Strong winds could cause damage to trees and power lines.

* WHAT...Heavy snow expected. Additional snow accumulations 10 to 18 inches above 4000 feet. Up to 2 inches for Stehekin. Winds gusting as high as 50 mph in the mountains. * WHERE...Stevens Pass, Stehekin, and Holden Village. * WHEN...Until 4 PM PST Thursday. * IMPACTS...Motorists should be prepared for winter driving conditions especially over the Cascade Passes. Strong winds could cause damage to trees and isolated power outages.

* WHAT...Heavy snow expected. Total snow accumulations of 12 to 20 inches. Winds gusting as high as 55 mph. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...From 4 PM this afternoon to 4 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Periods of heavy snow will impact the Upper East Slopes of the Washington Cascades Tuesday evening into Wednesday morning, and again late Wednesday evening through Thursday. Rain will occur along I-90 and White Pass during the day Wednesday.

* WHAT...Heavy snow expected above 4000 feet. Total snow accumulations of 8 to 20 inches. Winds gusting as high as 60 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...From 10 PM this evening to 4 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Periods of heavy snow will impact the northern Blues tonight into Wednesday morning, and again late Wednesday evening through Thursday. Rain and a rain to snow mix will occur during the day Wednesday. Strong gusty winds will also produce patchy blowing snow at times late Wednesday into Thursday.

* WHAT...Heavy snow expected above 4000 feet. Total snow accumulations of 12 to 24 inches. Winds gusting as high as 60 mph. * WHERE...East Slopes of the Oregon Cascades. * WHEN...From 4 PM Wednesday to 4 AM PST Friday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Rain is expected to transition into snow during the evening on Wednesday. Total snow accumulations for La Pine and Sunriver are expected to be around 3 to 6 inches. Santiam Pass could see over 20 inches of total snow accumulation.

* WHAT...Heavy snow expected above 4000 feet. Total snow accumulations of 8 to 20 inches. Winds gusting as high as 60 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...From 10 PM this evening to 4 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Periods of heavy snow will impact the northern Blues tonight into Wednesday morning, and again late Wednesday evening through Thursday. Rain and a rain to snow mix will occur during the day Wednesday. Strong gusty winds will also produce patchy blowing snow at times late Wednesday into Thursday.

A strong frontal system will move across the area today and into tonight, bringing a round of moderate to heavy rainfall to western Washington and possible flooding. * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest and west central Washington, including the following counties, in northwest Washington, Grays Harbor and Mason. In west central Washington, King, Lewis, Pierce and Thurston. * WHEN...Through Thursday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - A rising snow level, moderate to heavy rain, and to a lesser degree low- to mid-elevation snowmelt will potentially produce enough runoff to cause minor flooding of some streams and rivers. The Olympics and Cascades could see 3 to 5 inches of rain. The snow level will rise Wednesday to 4500 feet. Based on the degree of snow level changes, it's relation to precipitation, and the amount of precipitation and snowmelt makes for a fair amount of uncertainty on what, if any, rivers will flood. The exception is the Skokomish River which is highly likely to exceed flood stage and possibly Moderate Flood. - http://www.weather.gov/safety/flood

* WHAT...Heavy snow expected above 1500 feet. Total snow accumulations of 4 to 12 inches, except 12 to 24 inches above 2500 feet. Winds gusting as high as 50 mph. * WHERE...South Washington Cascades and South Washington Cascade Foothills. * WHEN...From noon today to 6 AM PST Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Strong winds could cause tree damage.

* WHAT...Heavy snow expected above 1500 feet. Total snow accumulations of 4 to 11 inches, except 12 to 24 inches above 2500 feet. Winds gusting as high as 50 mph. * WHERE...Northern Oregon Cascade Foothills, Northern Oregon Cascades, Cascade Foothills in Lane County, Cascades in Lane County and Upper Hood River Valley. * WHEN...From 4 PM this afternoon to 6 AM PST Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches.

* WHAT...Snow expected above 1500 feet. Total snow accumulations of 2 to 7 inches, except 7 to 14 inches above 2500 feet. Winds gusting as high as 55 mph. * WHERE...Coast Range of Northwest Oregon and Central Coast Range of Western Oregon. * WHEN...From 10 PM this evening to 6 AM PST Friday. * IMPACTS...Travel could be very difficult. Gusty winds could bring down tree branches.

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph expected. Snow and blowing snow will also create periods of very low visibility and drifting snow. * WHERE...Portions of Klamath, Lake, Modoc, and northeastern Siskiyou counties, including Tulelake, Alturas, Davis Creek, Klamath Falls, Adel, Lakeview, Valley Falls, Fort Rock, and portions of highways 140, 97, 31, 139, 299, and 395. * WHEN...From 1 AM Thursday to 4 AM PST Friday. * IMPACTS...Expect periods of low visibility in blowing snow. Damaging winds could blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Southwest winds 40 to 50 mph with gusts up to 60 mph expected. * WHERE...South Central Oregon Coast and Curry County Coast including Brookings, Gold Beach, Port Orford, all capes and headlands, and exposed portions of highway 101. * WHEN...From 7 PM this evening to 7 AM PST Thursday. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...In Oregon, Foothills of the Northern Blue Mountains of Oregon. In Washington, Foothills of the Blue Mountains of Washington. * WHEN...From 7 PM this evening to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest winds will occur right at the base of the Blue and Wallowa Mountains, including areas such as Cabbage Hill along I-84.

* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...In Oregon, North Central Oregon and Central Oregon. In Washington, Simcoe Highlands. * WHEN...Until 7 AM PST Thursday. * IMPACTS...Gusty winds could 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...Yakima Valley and Lower Columbia Basin of Washington. * WHEN...Until 7 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...John Day Basin. * WHEN...From 7 PM this evening to 4 PM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Grande Ronde Valley. * WHEN...From 10 AM this morning to 4 PM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT...South winds 30 to 40 mph with gusts up to 55 mph expected. * WHERE...Wallowa County. * WHEN...From 1 AM to 4 PM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest winds will occur right at the base of the Wallowa Mountains.

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...In Oregon, Foothills of the Northern Blue Mountains of Oregon. In Washington, Foothills of the Blue Mountains of Washington. * WHEN...From 7 PM this evening to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest winds will occur right at the base of the Blue and Wallowa Mountains, including areas such as Cabbage Hill along I-84.