When twister circle winds cover an area of several kilometers, it is called ______?

When twister circle winds cover an area of several kilometers, it is called ______?

جب ٹوئسٹر سرکل ہواؤں نے کئی کلومیٹر کے رقبے کا احاطہ کیا تو اسے ______ کہا جاتا ہے؟
Explanation

A cyclone refers to a large system of winds rotating around a low-pressure center, covering several kilometers.

A twister (or tornado) is much smaller in scale.