The weakest wind chill measured so far with the current calculation method (which was introduced in 2001) in the United States was also on Mount Washington. In 2004, a wind chill temperature of -74.8 degrees Celsius was measured there.
Lowest wind chill in the Netherlands
For comparison: in the Netherlands, the weakest wind chill of this millennium was measured in Lelystad. There was the wind chill on February 7, 2012 according to the KNMI -28.6 degrees Celsius.
“Visible temperatures measured on Mount Washington are life-threatening,” says meteorologist Leander de Wit of Buienradar. “Without protection, you may see your limbs freeze in seconds, and after a few minutes they may start to die.”
This video from NWS Cleveland shows just how intense the weather on Mount Washington was yesterday:
Mount Washington, almost 2000 meters high, is known for its extreme weather conditions, but it has also become terribly cold in lower areas. In Boston, the temperature dropped to -23 degrees, the lowest temperature recorded in the city since 1957, according to the National Weather Service (NWS). The wind chill there was below -34 degrees. In New York, the mercury fell to -16 degrees.
Frost Quakes
So-called earthquakes have been reported in the state of Maine. They are created when water in the ground freezes and cracks the rock. This leads to a deep rumble and sometimes even shocks like an earthquake.
The NWS warns that the cold will continue today. After that, temperatures will rise rapidly, up to around 6 degrees tomorrow.