More rain coming: Kolkata on watch as system drifts after drenching Delhi-NCR

Overnight storms brought rain, gusty winds and a sharp temperature drop across Delhi-NCR. Forecasters say the relief may be brief, with fresh thunderstorms possible by evening.

In Short

• Morning temperatures across Delhi-NCR fell to 19°C-21°C after overnight storms
• Meteorologists linked the shift to a western disturbance and moist winds
• The storm system moved into Uttar Pradesh, with stronger weather expected

Residents of Delhi NCR woke up to a rare spell of cool, pleasant weather after intense overnight storms swept across the region, bringing a sharp dip in temperatures and gusty winds.

Early morning readings hovered between 19°C and 21°C across most stations, offering relief from the recent spell of heat and humidity.

Meteorologists attribute the sudden change in weather to a strong interaction between an active western disturbance and moisture-laden winds flowing in from both the Arabian Sea and the Bay of Bengal.

This combination created ideal conditions for the formation of powerful thunderstorms, leading to heavy rain, lightning, and strong winds across parts of northwest India.

The storm system that impacted Delhi-NCR overnight has now shifted eastwards into Uttar Pradesh, where it is expected to intensify further through the morning hours. Cities such as Lucknow and Kanpur are likely to experience dust storms with wind speeds ranging between 50 and 85 km/h, accompanied by moderate to heavy rainfall between 8:30 am and 12:30 pm.

A significant drop in temperatures is also forecast across central Uttar Pradesh.

Meanwhile, the IMD has forecast rain, thundershowers with strong gusty winds reaching up to 50-60kmph in some parts of West Bengal on results day.

Back in Delhi-NCR, the weather is expected to remain windy and relatively comfortable through the afternoon. However, forecasters warn that the respite may be temporary. Atmospheric conditions are once again becoming favourable for fresh thunderstorm development across northwest India later in the day.

By late afternoon on May 4, convective activity is expected to build up, potentially triggering another round of rain and thundershowers across several parts of the region during the evening and night hours. While the intensity may vary locally, isolated strong storms cannot be ruled out.

Weather experts advise residents to stay cautious, particularly during evening hours when storm activity is likely to peak. Sudden gusty winds, lightning, and reduced visibility during dust storms could disrupt travel and outdoor plans.

The current pattern reflects a typical pre-monsoon transition phase, where fluctuating temperatures, moisture inflow, and upper-air disturbances combine to produce short but intense weather events.

For now, Delhi-NCR can expect a mix of pleasant conditions and intermittent storm activity over the next 24 hours.

- Ends