Coldest Temperatures: Air Blowing Machines, Jet Engine 07/13

Some railroads occasionally use air-blowing machines, each powered by a jet engine to clear snow from tracks and switches. In addition to physically blowing snow with the force of the air, they melt recalictrant precipitation with exhaust temperatures over 1,000 degrees Fahrenheit.

Wrapped up: Chris Tinney, 41, is covered in snow as he shovels outside businesses in Muskegon, Michigan on Monday morning.

The Division of Military and Naval Affairs is mobilizing more than 300 New York Army and Air National Guard citizen Soldiers and Airmen in western and central New York to assist local authorities if requested. On Monday morning, Nashville was 40 degrees colder than Albany, New York. Memphis, Tennessee, was 20 degrees colder than Anchorage, Alaska. And Atlanta was colder than Moscow – either Russia or Idaho. In the Great Lakes region, temperatures hovered in the negative 20s – before wind chill, which dropped temps to the negative 50s, making it very dangerous to go outside.