After thi Weather Headlines Fri, 18 Feb 2011 15:18:09 EST IWS0 Fri, 18 Feb 2011 14:43:17 EST Kocet's Corner For those that live in the South, there's nothing to worry about. It will stay pretty mild from Texas to the Carolinas this weekend, but the weather changes taking 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 it will become even more extensive Saturday. Here in central Pennsylvania, the temperature reached the middle 60s today, and all the snow cover that was left simply vaporized. Saturday is going to be a shocker, though, with temperatures down in the 30s again.

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

Here's my best shot as to how this storm will affect the Northeast early next week. I think it will come in two parts. Given this, snow will fall from New York and northern Pennsylvania to New England Monday. The next wave of low pressure will run farther south, perhaps bringing snowy weather to southern Ohio, West Virginia, northern Virginia and Maryland Monday night and Tuesday morning.

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

Story by AccuWeather.com Senior Meteorologist John Kocet.