An intense rotary storm of small diameter, the most violent of weather phenomena; tornadoes always extend downward from the base of a convec-tive-type cloud, generally in the vicinity of a severe thunderstorm.
Related terms:
An intense rotary storm of small diameter, the most violent of weather phenomena; tornadoes always extend downward from the base of a convec-tive-type cloud, generally in the vicinity of a severe thunderstorm.
Related terms: