Western Disturbance in Rajasthan | Rajasthan | 20 Jan 2025
Why in News?
The India Meteorological Department (IMD) has forecasted that a Western Disturbance will become active over Rajasthan on 21st January, 2025.
Key Points
- This weather system is expected to bring light rainfall to the north-western and north-eastern regions of the state.
- Consequently, the IMD has issued a warning for these areas.
- Western Disturbances:
- Western disturbances are storms that originate in the Caspian or Mediterranean Sea, and bring non-monsoonal rainfall to northwest India, according to the IMD.
- They are labelled as an extra-tropical storm originating in the Mediterranean, is an area of low pressure that brings sudden showers, snow and fog in northwest India.
- The meaning of WD lies in its name.
- The disturbance travels from the “western” to the eastern direction.
- These travel eastwards on high-altitude westerly jet streams - massive ribbons of fast winds traversing the earth from west to east.
- Disturbance means an area of “disturbed” or reduced air pressure.
- Equilibrium exists in nature due to which the air in a region tries to normalise its pressure.
- The disturbance travels from the “western” to the eastern direction.
