National Geographic News
Michelle Kottke shovels snow with the help of her dog Harlee in Barrington, Ill., Thursday, Jan. 2, 2014.

A woman shovels snow with the help of her dog after a New Year's Day snow in the Chicago suburbs.


Jane J. Lee

National Geographic

Published January 3, 2014

Happy New Year! Things got off to a roaring start for people in the path of a brutally cold snowstorm that plowed this week across the U.S. Midwest and East Coast.

From Chicago to Boston to Washington, D.C., folks were treated to up to a foot (0.3 meters) of snow, with windchill dipping into the negative digits. So far, nine deaths have been blamed on the storm.

Long Island, New York, and parts of coastal Massachusetts experienced blizzard conditions, said Chris Vaccaro, a spokesperson with the National Weather Service. Other parts of the country suffered under a nor'easter.

Nor'easters are simply storms that affect the northeastern part of the U.S., move in a northeasterly direction, and produce winds coming from the northeast. "That's the trifecta," said Vaccaro.

In the months of October or November, they can produce rain, while in January or February, they can produce snow.

They differ from blizzards in that—according to the National Weather Service—blizzards involve large amounts of snow, winds in excess of 35 miles (56 kilometers) an hour, and visibilities of less than a quarter mile (half a kilometer).

Visibility is the most important element in the mix, said meteorologist Matt Kelsch, with the University Corporation for Atmospheric Research, in an interview last year. "Usually, it takes that strength of wind—[35 miles (56 kilometers) an hour]—to pick enough snow off the ground to reduce visibility that much," he said.

"[But] it doesn't always have to be snowing to be a blizzard," Kelsch added. In the U.S., areas of the Great Plains and western states can get something called "ground blizzards": storms in which high winds pick up snow from the ground and whip it around, greatly reducing visibility.

Will blizzards become more frequent in the future as a result of climate change? That's difficult to know for sure, said Kelsch, but warming oceans may increase the contrast between warm coastal air and cooler air over land, which could increase the frequency of storms.

"Weather and climate are directly connected. You can't change one and not expect an effect on the other," Kelsch said.

Follow Jane J. Lee on Twitter.

Partha Sarathy
Partha Sarathy

Imagining the situation yet to face in the near future....

Roger Bird
Roger Bird

Man-made global warming, I'm sure.


Popular Stories

  • A Town Where Dolls Replace People

    A Town Where Dolls Replace People

    Welcome to Nagoro, Japan. Human population: 37. Doll population: 350. When villagers die or move away, a woman makes a life-size doll and places it in a spot that was meaningful to that person.

  • Sacred Maya Water Temple Unearthed

    Sacred Maya Water Temple Unearthed

    As an ancient drought took hold, a water temple saw more offerings from desperate Maya, archaeologists report.

  • Our Favorite Photos of the Food We Eat

    Our Favorite Photos of the Food We Eat

    From sugarcane farmers in Mozambique to fishermen in the Philippines, here's a collection of some of the best images from our Future of Food series.

The Future of Food

  • Why Food Matters

    Why Food Matters

    How do we feed nine billion people by 2050, and how do we do so sustainably?

  • Download: Free iPad App

    Download: Free iPad App

    We've made our magazine's best stories about the future of food available in a free iPad app.

See more food news, photos, and videos »