National Weather Service meteorologist Joey Clevenger says the advisory was added to the forecast just before 6an Tuesday because of a change in the weather pattern.
The weather is warming up and the roads might be bare throughout much of Washington, but don't count on that being the case over the state's mountain passes late this week.
Meteorologist Miranda Cote with the National Weather Service office in Spokane says it's going to look a lot like winter at higher elevations.
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The heavy snowfall in the Cascades this week might be making the landscape look like a winter wonderland, but it's creating a hellish nightmare for drivers on the state's mountain passes.
Both U.S. Highway 2 over Stevens Pass and U.S. 97 over Blewett Pass have experienced closures due to slick and treacherous conditions since Tuesday, and earlier this morning, Interstate-90 (I-90) Snoqualmie Pass
Old Man Winter is going to make travel on the state's major roadways a treacherous undertaking for the Christmas holiday this year.
Washington State Department of Transportation (DOT) spokesperson, Lauren Loebsack, says this week's heavy snow and frigid temperatures have already created some major issues for motorists...