Washington State Department of Transportation announced that the snow plowing on North Cascades Highway will not be able to begin until around April 10 this year. Furthermore, the snow is so deep this year that it might be June before State Highway 20 is fully cleared.
In a more normal weather year, the WSDOT crews start working to clear the road in mid-March. Besides the deep snow, they have to contend with the danger of avalanches at several locations in the high Cascades.
Check the WSDOT website for current road conditions and more information about traveling in Washington.