GENERAL KNOWLEDGE

Detailed explanation-1: -A western disturbance is an extratropical storm originating in the Mediterranean region that brings sudden winter rain to the northern parts of the Indian subcontinent, which extends as east as up to northern parts of Bangladesh and South eastern Nepal.

Detailed explanation-2: -Most of the rainfall in Asia is caused by the summer (southwest) monsoon (a warm moist wind). In winter, the westerlies cause rainfall in the Western Asian countries. Eastern parts of China, the Philippines, Malaysia etc. receive rainfall from tropical cyclones.

Detailed explanation-3: -Note: Western Disturbances are caused during most of the winter as well as pre-monsoon season rainfall across the Northwestern regions of India. This phenomenon is usually associated with a cloudy sky, high night temperatures, and unusual rains.

Detailed explanation-4: -Western disturbances are storms that originate in the Caspian or Mediterranean Sea, and bring non-monsoonal rainfall to northwest India, according to the India Meteorological Department (IMD).