pöörlevat veesammast tekitav õhukeeris, in general, a tornado occurring over water, specifically, ... a small, relatively weak rotating column of air over water beneath a Cb or towering cumulus cloud

pöörlevat veesammast tekitav õhukeeris, in general, a tornado occurring over water, specifically, ... a small, relatively weak rotating column of air over water beneath a Cb or towering cumulus cloud