Three weather stories in the next three days: Warm, Snow, Cold. First the warm air surges north for everyone generally east of Iowa. Records will be shattered! Also severe weather will be a serious threat south of Milwaukee. Then cold air crashes in and changes rain to snow, heavy snow in fact. Very hard to pin down the timing of the cold air and where the rain will be when that happens, but the snow map should give you a good idea. And finally, cold air dives south from Canada and brings us back to where we were last week. Dangerous wind chills will be prevalent.