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* WHAT...Snow expected. Additional snow accumulations 6 to 12 inches with up to 16 inches near Crater Lake. Winds gusting as high as 40 mph over exposed terrain. * WHERE...The southern Oregon Cascades north of Lake of the Woods, including Crater Lake National Park and the Cascade passes along Highways 62, 138, 230, and 58. * WHEN...Until 4 AM PST Tuesday. * IMPACTS...Travel could be difficult with slippery, snow covered roads and reduced visibility. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Snow may taper off this afternoon, but pick up again later tonight.

* WHAT...Snow. Additional snow accumulations up to 2 inches in lower valleys with 2 to 5 inches in the mountains. * WHERE...In Idaho, Upper Weiser River and West Central Mountains. In Oregon, Baker County. * WHEN...Until 5 AM MST /4 AM PST/ Tuesday. * IMPACTS...Snow covered roads could make travel difficult.

* WHAT...Snow and freezing rain expected at or above elevations greater than 2500 ft. Total snow accumulations of 5 to 10 inches. Ice accumulations of up to 0.10 to 0.20 inches near and east of the crest. Winds gusting as high as 35 mph. * WHERE...West Slopes North Cascades and Passes. * WHEN...From 4 AM Tuesday to 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult with snow and ice on the roadway. * ADDITIONAL DETAILS...Periods of snow are expected Tuesday morning through Tuesday afternoon. Snow will transition to freezing rain by Tuesday evening, then to rain early Wednesday morning as snow levels gradually climb from 2500 to near 8000 feet. Ice accumulations are most likely across Snoqualmie and Stevens Passes but cannot be ruled out at White Pass.

* WHAT...Snow and freezing rain expected at or above elevations greater than 2500 ft. Total snow accumulations of 5 to 10 inches. Ice accumulations of up to 0.10 to 0.20 inches near and east of the crest. Winds gusting as high as 35 mph. * WHERE...West Slopes North Central Cascades and Passes and West Slopes South Central Cascades and Passes. * WHEN...From 4 AM Tuesday to 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult with snow and ice on the roadway. * ADDITIONAL DETAILS...Periods of snow are expected Tuesday morning through Tuesday afternoon. Snow will transition to freezing rain by Tuesday evening, then to rain early Wednesday morning as snow levels gradually climb from 2500 to near 8000 feet. Ice accumulations are most likely across Snoqualmie and Stevens Passes but cannot be ruled out at White Pass.

* WHAT...South winds 20 to 35 mph with gusts up to 45 mph expected. * WHERE...Central Coast. * WHEN...From 4 PM Tuesday to 4 AM PST Wednesday. * 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 are expected along the coast of Grays Harbor County, including the cities of Westport, Ocean Shores, and Taholah.

* WHAT...Snow expected. Additional snow accumulations up to 1 inch. * WHERE...Portions of North Idaho and Northeast and Southeast Washington. * WHEN...Until 5 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday evening commute. * ADDITIONAL DETAILS...Highest snow amounts will be north of I 90. Most of the Spokane area will see an inch or less of snow. Snow is also expected to turn to rain across the Palouse in the afternoon.

* WHAT...South winds 20 to 30 mph with gusts up to 65 mph possible for beaches and headlands. * WHERE...South Washington and North and Central Oregon Coast. * 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...There is a 40-60% chance for gusts of 58 mph or greater for the beaches and headlands. Probabilities for inland coastal communities are much lower at 10-20%.

* WHAT...South winds 20 to 30 mph with gusts up to 65 mph possible for beaches and headlands. * WHERE...South Washington and North and Central Oregon Coast. * 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...There is a 40-60% chance for gusts of 58 mph or greater for the beaches and headlands. Probabilities for inland coastal communities are much lower at 10-20%.

* WHAT...Minor coastal flooding expected. Inundation of around 2 feet above ground level is possible along shorelines and low- lying coastal areas. * WHERE...Central Coast zone. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Minor coastal flooding due to tidal overflow is expected around high tide. This may lead to flooding of parking lots, parks, and roads, with only isolated road closures expected. * ADDITIONAL DETAILS...Highest impacts will occur in the hours around high tide, which will occur around 1 PM PST on Monday.

* WHAT...Minor coastal flooding expected. Inundation of around 2 feet above ground level is possible along shorelines and low- lying coastal areas. * WHERE...Central Coast zone. * WHEN...From 10 AM this morning to 4 PM PST this afternoon. * IMPACTS...Minor coastal flooding due to tidal overflow is expected around high tide. This may lead to flooding of parking lots, parks, and roads, with only isolated road closures expected. * ADDITIONAL DETAILS...Highest impacts will occur in the hours around high tide, which will occur around 1 PM PST on Monday.

* WHAT...Minor coastal flooding expected. Inundation of around 2 feet above ground level is possible along shorelines and low- lying coastal areas. * WHERE...San Juan County, Western Whatcom County and Western Skagit County zones. * WHEN...Until 10 AM PST this morning. * IMPACTS...Minor coastal flooding due to tidal overflow is expected around high tide. This may lead to flooding of parking lots, parks, and roads, with only isolated road closures expected. * ADDITIONAL DETAILS...Highest impacts will occur in the hours around high tide, which will occur around 7 AM PST on Monday.

...SIGNIFICANT MOUNTAIN SNOWFALL IS ANTICIPATED THROUGH EARLY TUESDAY... .A significant winter system will impact the area providing ample snowfall that will impact travel across the Cascades, Blues, and the John Day-Ochoco Highlands through Tuesday. * WHAT...Snow expected above 4000 feet. Total snow accumulations between 5 to 10 inches. Winds gusting as high as 35 mph will cause blowing and drifting of snow. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...Until 10 PM PST this evening. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow.

...SIGNIFICANT MOUNTAIN SNOWFALL IS ANTICIPATED THROUGH EARLY TUESDAY... .A significant winter system will impact the area providing ample snowfall that will impact travel across the Cascades, Blues, and the John Day-Ochoco Highlands through Tuesday. * WHAT...Snow expected. Total snow accumulations between 4 to 8 inches. * WHERE...Upper and Lower Slopes of the Eastern Washington Cascades Crest. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions.

...SIGNIFICANT MOUNTAIN SNOWFALL IS ANTICIPATED THROUGH EARLY TUESDAY... .A significant winter system will impact the area providing ample snowfall that will impact travel across the Cascades, Blues, and the John Day-Ochoco Highlands through Tuesday. * WHAT...Heavy snow expected Above 4000 Feet. Total snow accumulations between 8 and 16 inches. * WHERE...East Slopes of the Oregon Cascades. * WHEN...Until 10 AM PST Tuesday. * IMPACTS...Significant snowfall with periods of heavy snowfall rates will combine with low visibility to create very difficult driving conditions.

...SIGNIFICANT MOUNTAIN SNOWFALL IS ANTICIPATED THROUGH EARLY TUESDAY... .A significant winter system will impact the area providing ample snowfall that will impact travel across the Cascades, Blues, and the John Day-Ochoco Highlands through Tuesday. * WHAT...Heavy snow expected Above 4000 Feet. Total snow accumulations between 5 and 10 inches. * WHERE...Ochoco-John Day Highlands. * WHEN...Until 10 AM PST Tuesday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions.

...SIGNIFICANT MOUNTAIN SNOWFALL IS ANTICIPATED THROUGH EARLY TUESDAY... .A significant winter system will impact the area providing ample snowfall that will impact travel across the Cascades, Blues, and the John Day-Ochoco Highlands through Tuesday. * WHAT...Snow expected Above 4000 Feet. Total snow accumulations between 4 and 7 inches. * WHERE...Southern Blue Mountains of Oregon. * WHEN...Until 10 PM PST this evening. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow.

...SIGNIFICANT MOUNTAIN SNOWFALL IS ANTICIPATED THROUGH EARLY TUESDAY... .A significant winter system will impact the area providing ample snowfall that will impact travel across the Cascades, Blues, and the John Day-Ochoco Highlands through Tuesday. * WHAT...Snow expected above 4000 feet. Total snow accumulations between 5 to 10 inches. Winds gusting as high as 35 mph will cause blowing and drifting of snow. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...Until 10 PM PST this evening. * IMPACTS...Travel could be difficult due to periods of moderate to heavy snow.

* WHAT...Snow at or above elevations greater than 3000 ft. Additional snow accumulations between 2 and 4 inches. * WHERE...West Slopes North Central Cascades and Passes and West Slopes South Central Cascades and Passes. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions.

ESFSEW An atmospheric river will impact the region Tuesday and Wednesday, bringing potentially significant rainfall that could drive some rivers in western Washington into flood stage. There is still a fair amount of uncertainty regarding river flooding mid-week, but the latest rainfall forecast shows 4 to 7 inches over the Olympic Peninsula with snow levels as high as 7000 to 8000 feet. Forecast models show large variability in the forecast, with as much as 8 inches or higher over the Olympics in less than 36 hours. The northern and central Cascades will also see heavy rainfall during this period, with up to 5 inches of liquid forecast through Wednesday. The Skokomish River is currently forecast to enter moderate flood stage by Wednesday, and other area rivers will continue to be monitored. In addition, urban and small stream flooding will need to be monitored as well due to potential heavier rain rates Tuesday night into early Wednesday morning. Forecast models show potential for additional precipitation entering western Washington towards the end of the week, which could cause additional river flooding impacts. Please monitor the latest river forecasts from the National Weather Service for additional information.

* WHAT...Snow expected. Total snow accumulations 8 to 16 inches with up to 20 inches near Crater Lake. Winds gusting as high as 40 mph over exposed terrain. * WHERE...The southern Oregon Cascades north of Lake of the Woods, including Crater Lake National Park and the Cascade passes along Highways 62, 138, 230, and 58. * WHEN...Until 4 AM PST Tuesday. * IMPACTS...Travel could be difficult with slippery, snow covered roads and reduced visibility. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Snow may taper off this afternoon, but pick up again later tonight.