US Weather News: America is currently experiencing bone-chilling cold. Due to which the condition of the country is miserable. On Sunday, there was heavy snowfall in some parts of Central America, which has made the situation more dangerous. Apart from this, due to the devastating winter storm, there is a possibility of the heaviest snowfall in a decade in some areas.

Snow and ice covered nearly all of Kansas, western Nebraska and parts of Indiana. The National Guard was activated to help any stranded motorists. The National Weather Service issued a winter storm warning for Kansas and Missouri, where winds of up to 45 mph (72.42 kph) were expected during blizzard conditions.

63 million people affected

The warning extended into New Jersey through Monday and Tuesday morning. The weather service said Sunday, "In locations across the region that receive the heaviest snowfall, this could be the heaviest snowfall in at least a decade." About 63 million people in the U.S. were under some type of winter weather advisory, watch or warning on Sunday, according to Bob Oravec of the National Weather Service.

Condition is bad due to snowfall

In Indiana, snow completely covered parts of Interstate 64, Interstate 69 and U.S. Route 41, prompting Indiana State Police to urge motorists to stay off the roads while snow removal machines were working. "It's snowing so hard here that the snow removal vehicles go ahead to clear the snow and then within half an hour the roads are completely covered again," Sergeant Todd Ringle said.

The polar vortex of extremely cold air usually circles around the North Pole. When the vortex spreads southward, people in the Americas, Europe and Asia experience its intense cold. Studies suggest that the rapidly warming Arctic is partly responsible for the increasing frequency of the polar vortex, which is increasing its icy grip.

How much snow fell where?

A portion of I-70 was closed in central Kansas by Saturday afternoon. About 10 inches (25 centimeters) of snow fell in parts of the state, while parts of Kansas and northern Missouri were forecast to receive more than 14 inches. Northern parts of New York received 3 feet (0.9 meters) or more of snow, which is expected to continue.

Storm warning issued

The storm was forecast to move across the Ohio Valley and reach the mid-Atlantic states on Sunday and Monday, with bitter cold expected as far south as Florida. Destructive winds knocked down trees across the Deep South. The weather service issued tornado warnings for Arkansas, Louisiana and Mississippi on Sunday. The weather service warned that road travel could be very difficult to impossible.

Trains and flights were cancelled

The storm also damaged the country's railways, forcing the cancellation of many trains. More than 20 trains are scheduled to be cancelled on Sunday, 40 on Monday and at least two on Tuesday. Nearly 200 flights to and from St. Louis Lambert International Airport were cancelled, according to tracking platform FlightAware.