After thiWeather HeadlinesFri, 18 Feb 2011 15:18:09 ESTIWS0Fri, 18 Feb 2011 14:43:17 ESTKocet's CornerFor those that live in the South, there's nothing to worry about. It will staypretty mild from Texas to the Carolinas this weekend, but the weather changestaking place north of Interstate 70 will be a big slap in the face.The cold has already moved into the Dakotas, Minnesota and WIsconsin, and itwill become even more extensive Saturday. Here in central Pennsylvania, thetemperature reached the middle 60s today, and all the snow cover that was leftsimply vaporized. Saturday is going to be a shocker, though, with temperaturesdown in the 30s again.

In addition to the turn to colder weather, a major winter storm is brewing forthe Central states. Sunday, the main impact of the storm will be felt fromSouth Dakota to Michigan, where several inches of snow will make forexceedingly difficult travel.

Here's my best shot as to how this storm will affect the Northeast early nextweek. I think it will come in two parts. Given this, snow will fall from NewYork and northern Pennsylvania to New England Monday. The next wave of lowpressure will run farther south, perhaps bringing snowy weather to southernOhio, West Virginia, northern Virginia and Maryland Monday night and Tuesdaymorning.

One thing is for certain. Places through the mid-Atlantic that were enjoyingtemperatures around 70 Friday afternoon will be about 40 degrees colder comenext Tuesday.

Story by AccuWeather.com Senior Meteorologist John Kocet.