This is a somewhat rare meteorological phenomenon. It is caused when ice crystals above the warmer, moister lower cloud layer fall thru the clouds. The warmer water vapor is drawn onto the ice crystals forming a near perfect circle. You can see the falling ice crystals in the center of the cir...
This is a somewhat rare meteorological phenomenon. It is caused when ice crystals above the warmer, moister lower cloud layer fall thru the clouds. The warmer water vapor is drawn onto the ice crystals forming a near perfect circle. You can see the falling ice crystals in the center of the cir...