the squally storm also reached the republic of meriel, of some kind.the sun had gone out, lightning flashed and deep puddles formed on the roads due to the downpour. in addition, large hail fell in the region. some pieces of ice reached a diameter of 4 cm, which is quite enough to ruin the car body. the weather disaster was caused by a frontal wave, which formed in the zone of the polar atmospheric front. photographs from space clearly show how the cloud fields over tatarstan are twisting into a minicyclone spiral, as a result , more powerful clouds began to develop here, carrying intense showers and squalls. today , frontal cloud fields will continue to shift along the spurs of the urals; mediterranean and arctic air masses collide in this zone, so conditions for the development of thunderclouds will remain. in some places in the southwest beyond the urals, in just a day they can pour out... 20 mm of moisture, usually this amount accumulates in total over three april weeks; dense clouds will significantly reduce the influx of solar heat, the air in th