A pattern change is about to take place that will feature the return of mild weather across much of the country.  Before that happens, however, a storm system traversing the U.S. will generate widespread precipitation, starting Wednesday in the Northwest and reaching the Midwest and East late in the week.  Unlike other recent weather systems, precipitation will not be particularly heavy with this week’s storm, although locally disruptive amounts of snow still may occur across the northern half of the U.S. 

…