Delhi-NCR has been raining incessantly for the last two days. On Thursday also it rained in many areas of UP, Delhi, and Haryana. Heavy rain is also expected on Friday. According to the Meteorological Department, there may be light to heavy rains in these areas for a few days now. Along with this, the department has issued a yellow alert. In such a situation, the question arises when the monsoon is about to leave, why is it suddenly raining so much in Delhi-NCR and how long will its effect last?
The sudden change in weather and rain in Delhi-NCR is due to the coming together of two systems. The first system is a low-pressure system, due to which cyclonic circulation is created in the lower atmosphere. This system is active over North West Madhya Pradesh and South West Uttar Pradesh. It is currently seen to be active in the areas of western Uttar Pradesh, southern Haryana and Delhi NCR.
On the other hand, the second system is of a Western Disturbance, which is active in the upper part of the atmosphere. Along with this, westerly winds are also blowing. These winds are also called Mid Tropaspheric Westerly.
If the second system was not present, then the first system would have left towards the west, but the second system has stopped the first system in this area, which will continue to rain for the next 2 days. Both the strong systems can remain in Uttar Pradesh, South Haryana and Delhi NCR till this weekend.