Focus
- Aspirants need to understand what a western disturbance ais nd how it will affect the Indian Monsoon.
Western Disturbance
- What is it?: It is a non-monsoonal precipitation pattern that induces low-pressure systems in the lower layers of the atmosphere and causes rainfall in the plains and snowfall in the mountains.
- Impact
- Lack of snowfall in the mountains affects the yield of Rabi crops
- Availability of water in the mountains
- Horticulture crops like apples will be severely affected due to changes in snowfall.
- The tourism sector will also be affected.
- They can also cause fog, cold waves, and result in landslides.
Source: Down To Earth