As millions of Americans hunker down for the winter storm, 19 states and Washington, D.C., have declared states of emergency.

Meteorologists say the storm may not be as dramatic as the Jan. 23-26 storm, but its track and potential strength aren't yet clear.

What will happen?: The forecast could change, and change again, before the weekend. While forecasters are fairly confident that a storm will develop, key details — including its strength, where it will go and how much snow or ice it will deliver — remained uncertain on Tuesday.

Say it ain’t snow. On the heels of the biggest snowfall New York City has seen in five years, we’re already monitoring another potential storm that could impact the tri-state area this weekend. A very strong coastal storm remains likely to develop off the Carolina coast.

People in 14 states have died as a result of the weekend winter storm that brought, snow, ice and treacherous conditions.

The forecasts had predicted that the storm could be among the worst in a generation to hit the region. By Monday, it was clear that is exactly what happened.

A massive winter storm has dumped sleet, freezing rain and snow across much of the U.S., halting air and road traffic and sending temperatures plunging

Forecasters see chances for another storm by the last weekend of January.

A new burst of arctic air was on the way, and there is an "increasing potential of another significant winter storm" for Eastern states this weekend, the National Weather Service said.