“The frosty air contains ice crystals through which the sun's rays are refracted. This leads to this halo effect. Now the sun is low, so the halo can be observed for a long time, ”Galina Sheporenko, chief forecaster of the Ural hydrometeorological center, told RIA Novosti.
On the morning of February 5, the air temperature in Yekaterinburg dropped to 34 degrees below zero.
Earlier, URA.RU reported abnormal frosts in the Chelyabinsk region since February 4.