The second nor`easter in less than a week will pack a second major punch for the Mid-Atlantic today and Wednesday that will add insult to injury to current travel headaches as well as extend more school kids unplanned winter break. Southern and eastern New England will not go unscathed this time; it will get pummeled by this round of snow and wind.

The first part of the developing storm is edging out of the Mississippi Valley and Great Lakes, spreading snow from the Upper Midwest, across the Ohio Valley and into the Mid-Atlantic.

Widespread light to moderate snow is falling across the Ohio Valley, where 4 to 8 inches are expected. A narrow band of sleet and freezing rain is impacting Kentucky and southwestern West Virginia while Georgia is gets pelted with heavy rain. The rain is part of a second system moving through the Southeast.

WeatherBug Meteorologist Rachel Peterson has the latest on the East Coast nor'easter in this exclusive WeatherBug Wintry Weather Video.

The two separate systems, one in the Mississippi Valley and the other in the Southeast will move eastward into the Ohio Valley and Southeast today. It is already spreading snow across the Appalachians and will continue to do so across the Mid-Atlantic.

Tonight is when things will get interesting for the East Coast. The main energy feeding these systems will jump to the Carolina Coast, where a powerful coastal storm, or nor`easter, will quickly form. As the nor`easter spins up and begins to dominate, the snow will be enhanced in the Mid-Atlantic overnight Tuesday before expanding north into eastern New England into Wednesday.

There will be a wide range of snowfall accumulations with the nor`easter, with bands of 10 to 20 inches possible along the I-95 corridor from near Washington, D.C., all of the way into southern New York City metropolitan area. The I-95 corridor from just northeast of Baltimore northeast into northern Delaware, southeastern Pennsylvania and southern New Jersey could approach 2 feet of snow. The result will be major travel headaches and be a step back for the progress made from digging out from the weekend storm.

As the nor`easter slides up the Mid-Atlantic Coast Wednesday morning, warm air will override cold air at the surface producing a bit of sleet along the immediate Mid-Atlantic Coast and as far inland as I-95. Colder air swinging in behind the storm will turn the sleet back to all snow late Wednesday morning.

Even New York, Hartford, Ct., Boston`s southern suburbs and everywhere else in between could see 8 to 13 inches from the nor`easter as it roars up the coast. Aside from the heavy snow, the developing nor`easter will produce howling winds between 35 and 50 mph along the Delmarva Peninsula north to southern New England. This, combined with the snow, could knock out power and cause significant coastal damage from coastal flooding. Blizzard-like white-outs are also possible.

Widespread Winter Storm Warnings are in effect across the Mid-Atlantic, including Washington, D.C., Baltimore, Philadelphia and New York City with Winter Storm Watches in effect across much of southern New England, including Hartford, Conn., and Providence, R.I. Winter Weather Advisories extend along the New York and Pennsylvania border and from southern Virginia into far western South Carolina.

Remember to submit your photos of the snow by clicking to the "Your Photo" link to the right of this story.

Check your WeatherBug for the latest on the winter storm threat, and keep it active to receive watches, warnings and advisories in your area. Get the latest updates anywhere on Twitter at WeatherBug WeatherBuzz.

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