Meaning of CYCLONIC CIRCULATION (OR CYCLONIC ROTATION) in English

CYCLONIC CIRCULATION (OR CYCLONIC ROTATION)

Circulation (or rotation) which is in the same sense as the Earth's rotation, i.e., counterclockwise (in the Northern Hemisphere) as would be seen from above. Nearly all mesocyclones and strong or violent tornadoes exhibit cyclonic rotation, but some smaller vortices, such as gustnadoes , occasionally rotate anticyclonically (clockwise). Compare with anticyclonic rotation

A comprehensive English glossary of weather.      Полный английский глоссарий погоды.