Extreme weather conditions are becoming more and more common, something that the inhabitants of the Earth feel on their own skin. While Australia is facing a heat wave, the situation in the US has been quite the opposite until recently.
Midwest USA he captured polar cold wave, caused by the polar vortex. The air temperature dropped down to -30 degrees Celsius, with the feeling of cold from the wind reaching -50 degrees Celsius.
Polar vortex is a seasonal atmospheric phenomenon that occurs when the stratosphere cools significantly. It is created by temperature differences between the North Pole and more southerly latitudes. Sudden warming of the stratosphere can lead to splits the polar vortex into two parts. Cold arctic air thus penetrates deep into the south. This is exactly what happened in the USA.
In cities like Chicago, Milwaukee and Detroit, the air temperature was even lower than in some places on Antarctica. The cold caused many inconveniences, as it life practically paralyzed in some places. Due to the extreme weather, which has already claimed lives, many flights have been canceled and many schools, businesses and shops have closed their doors.
Most people tried to protect themselves from the cold by staying in in the comfort of their homes. The braver ones decided to they take some photos that prove that it was really freezing cold in the US right now.
Gallery - 20 photos that prove how cold it really was in the US
