New Delhi: It has been raining intermittently for the last two days in Delhi-NCR. On Thursday also it rained in many areas of Uttar Pradesh, Delhi, and Haryana. There is a possibility of heavy rain on Friday as well. According to the Meteorological Department, there is a possibility of light to heavy rains in these areas for the next few days. Along with this, the Meteorological Department has issued a yellow alert of rain. 

In such a situation, the question arises that now when the monsoon is about to go, 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 in North West Madhya Pradesh and South West Uttar Pradesh. It is currently seen moving towards western Uttar Pradesh, southern Haryana and areas of Delhi-NCR.

At the same time, 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, due to which there is an atmosphere of rain. These winds are also called mid tropospheric westerlies.

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