Heavy snow and travel disruptions will spread from St. Louis to Pittsburgh Friday night, then to Philadelphia, New York City and Boston Saturday.
The snowstorm will span more than 1,000 miles.
Thanks to recent Arctic air making roads and sidewalks much colder compared to previous storms, enough snow to shovel and plow is in store from parts of Missouri, Illinois, Indiana, West Virginia, Virginia, Maryland and New Jersey to much of Ohio, Pennsylvania, New York, Massachusetts, Connecticut, Rhode Island, Vermont, New Hampshire and Maine.
Not only will the storm make roads and sidewalks slippery, raising the risk for slip-and-fall incidents and auto accidents, but it is likely to cause many flight delays and cancellations. The visibility will be poor, runways will become snow covered and aircraft will need to be de-iced.
Snow will fall on and impact every major city and rural area from St. Louis to Boston, including Chicago, Detroit, Cincinnati, Cleveland, Pittsburgh, Philadelphia and New York City. The area encompasses about 110 million people.
The storm will spread across the Midwest late Friday into Friday night and over the Northeast Saturday and Saturday night.
A mixture of snow, sleet and rain will mitigate accumulations across central Missouri and eastward along the Ohio River. However, enough wintry mix will fall to make roads slippery.
Long stretches of along the I-70, I-75, I-80 and I-90 corridors may be snow covered in the Mid
