A blast of Arctic air from the polar vortex brought dangerous, bone-chilling cold to a wide swathe to northern hemisphere. The US Midwest was the hardest-hit region, as temperatures plunged below -18 deg C. By nightfall, the mercury was hovering at -18 deg C in Chicago, -14 deg C in Detroit and -29 deg C in Minneapolis. Northern India is another region which is highly affected by this phenomena.
In India, Churu, Rajasthan has seen temperature dropping to -1.1 degree. Pahalgam saw temperature of -13.7 . Keylong was recorded at -16.2 which is coldest in India. Entire J&K, Himachal and Uttarakhand was below 1 degree and Delhi saw temperatures about around 4-5 degree.