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Snowfall over the Cascades early this morning is lessening. Therefore, the existing Winter Storm Warning will be allowed to expire. Another strong system will bring in another round of heavy mountain snow this afternoon through Thursday evening. ...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS AFTERNOON THROUGH THURSDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations of up to 2 to 4 feet possible. Winds could gust as high as 45 mph. * WHERE...Cascade mountains and valleys of Whatcom and Skagit Counties, including Maple Falls, the Mount Baker Ski Area, Newhalem, Lyman, and Concrete, Cascade mountains and valleys of Snohomish and King Counties, including Darrington, Index, Skykomish, Stevens Pass, and Snoqualmie Pass and Cascade mountains and valleys of Pierce and Lewis Counties, including the Crystal Mountain Ski Area, Paradise on Mount Rainier, Ashford, Randle, and Packwood. * WHEN...From this afternoon through Thursday evening. * IMPACTS...Travel could be very difficult.