WEATHER

 NBC - A major storm system is set to wallop a large swath of the country with cold temperatures and possibly heavy snow and hazardous ice, forecasters said. About 45 million people are under winter alerts from Kansas to Maryland for the storm, which will set in today and last until Monday, the National Weather Service said.Cities such as St. Louis, Indianapolis and Cincinnati may see the worst conditions today, with snowfall amounts of 6 to 12 inches and ice accumulations of .25 to 5 inches. Tomorrow, severe storms will rumble across the South and impact 7 million people from southeast Texas to Mississippi and southern Tennessee. Monday will be a messy day in the Ohio Valley, Mid-Atlantic and the Northeast. The area south of New York City is expected to see the heaviest snowfall totals. Here’s what else we know.