Millions of residents across multiple states in the U.S. have been warned to brace for a possible bomb cyclone, forecast to hit from Monday, December 29, through to the weekend, bringing heavy winds and wintry conditions, prompting the National Weather Service (NWS) to issue storm warnings and advise drivers not to travel unless it’s an emergency.

More than 40 million are on alert as the next winter storm is forecast to bring inclement weather from the Dakotas into northern New England over the coming days.

A winter storm watch alerts the public to the possibility of heavy snow, freezing rain or sleet. Winter Storm watches are usually issued 12 to 48 hours ahead of predicted severe weather.

Officials urge residents to monitor local forecasts as the winter storm system may continue to impact additional regions.

Several states were under weather warnings or advisories early Monday. The same winter storm battered the Midwest over the weekend.

A winter storm moving into Wisconsin is bringing fog, rain, snow and rapidly dropping temperatures. Here's the timing and forecast.

A major winter storm is pummeling the Tri-State Area with snow and ice after New York and New Jersey declared states of emergency.

A winter storm is set to impact Minnesota, with hazardous travel conditions expected, and a blizzard warning issued for several parts of the state.

More than 30 million people are under winter weather alerts across the Midwest and Northeast early this week with another storm threatening to upend travelers’ plans on what is expected to be one of the busiest travel days this holiday season.