We have a quick moving pattern, so this clear sky and cooler air today will not last long. A rain event will race in here on Thursday, then pull the coldest air of the year in for the weekend. But the atmosphere is volatile and the El Nino force will develop yet another storm Christmas week and bring us another run for the 70s. But it will be stormy. Here is a quick look, and if you want to see winter in the short term, race to western Maryland for their quick visit with snow.