DHAKA: The United States is expected to see the coldest temperatures in almost 20 years as an arctic cold front descends on 140 million people.

Much of the United States will see the coldest temperatures in almost 20 years, according to the National Weather Service. They are expected to be 30 to 50 degrees below average in some cities, reports CNN.

To put things in perspective, the weather in Atlanta and Nashville, Tennessee, on Monday will be colder than in Anchorage, Alaska. By Wednesday, nearly half the nation will shudder in temperatures of zero or lower, forecasters said.

The unusual weather is already causing headaches, especially for travelers.

Close to 3,000 flights were canceled Sunday, said the flight-tracking website flightaware.com, which tracks cancellations due to weather, mechanical and other problems.

A man at Logan International Airport in Boston told CNN affiliate WCVB that he will miss two days of a cruise because he can`t get to Florida as planned to meet the boat.

Another passenger at Logan was overcome with emotion as she spoke, her voice cracking under the stress.

"I just want to go home. I just want to get back, settled in. We`ve been cooped up for two days," WCVB reported Amy Roy said.

Here`s a look at what`s happening around the country.

BDST: 1135 HRS, JAN 06 , 2014
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