In case you didn't know this already, it's freakin' freezing in the Midwest.
Need proof? In the video above, which was uploaded to YouTube on Monday, meteorologist Eric Holthaus makes boiling water transform into "snow" in Wisconsin.
"Holthaus demonstrates what happens when you toss a pot of boiling water into the sky when it is -21 degrees Fahrenheit with a wind chill of -51 degrees Fahrenheit," the YouTube video description reads. It also notes that the clip was shot Monday in Viroqua, Wis.
Meteorologists warned of "life-threatening" weather in many areas as a "polar vortex" of freezing air descended on the country Monday. In midwestern cities like Chicago, St. Louis, and Milwaukee, schools were closed and residents were cautioned to stay indoors, the Associated Press reported.
This isn't the first time in recent days that someone has videotaped what happens when boiling water meets extreme cold. Last week an amateur scientist in South Porcupine, Ontario, posted a video on YouTube that showed him shooting hot water into the freezing cold air with a water gun.
As in Holthaus' video, the hot water turned from liquid form into a white, snowlike mist.