A classic clipper system will make a quick trip through the upper Midwest and Great Lakes region late this week, delivering snow, gusty winds and a shot of even colder air. Places like Minneapolis, Chicago, Detroit, Indianapolis, Pittsburgh and Buffalo will feel the chill. We time it out for you.
Snowfall rates play an important role in winter storm forecasts. Here's a look at some extreme examples from the past that illustrate how much can fall in an hour.