Did you hear a loud boom outside Tuesday night? It might have been a "frostquake," according to the National Weather Service's Milwaukee/Sullivan office.
The NWS explained the phenomenon in a Facebook post:
We have received reports of a loud boom and even some rumbling near the Columbus/Fox Lake area, down to the Johnson...
Posted by US National Weather Service Milwaukee/Sullivan Wisconsin on Tuesday, January 12, 2016
Dozens of people confirmed the frostquake in the comments, including one man who described it as "like a steam roller vibrating on fresh asphalt."
Cryoseisms, as they're officially known, happen largely in the Midwestern, Northern, and Northeastern United States, but also in Canada.
Be sure and try our new SNOWCAST APP! It is the "snow equivalent to STORM SHIELD" - a great new product that gives you high resolution snow forecasts for any part of the nation! It has just been introduced for iPhones, but we are working on the Android version! Just search SNOWCAST in the App Store or click here.
