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Chennai woke up to a refreshing Saturday morning on September 20, thanks to overnight showers that swept across the city and its suburbs. The rainfall brought down temperatures, cleared the air, and offered a brief respite from the lingering humidity. Meanwhile, the Regional Meteorological Centre has forecast continued rainfall activity across north Tamil Nadu, with thunderstorms and gusty winds expected in several districts over the coming days.
The showers are part of a larger weather system influencing the southern peninsula, with convective activity and atmospheric circulation triggering widespread precipitation. From urban pockets to rural belts, the rains have touched down with varying intensity, setting the tone for a wet weekend.
City cools down after night-long drizzle
1. Chennai recorded a maximum temperature of 29 degrees Celsius by 11 a.m. on Saturday, noticeably lower than the seasonal average
2. Light to moderate rainfall was reported across key neighbourhoods including Nungambakkam, Kodambakkam, Koyambedu, and Poonamallee
3. Suburban areas such as Chembarambakkam, Porur, Valasaravakkam, Maduravoyal, and Virugambakkam also received showers
4. The India Meteorological Department noted that such evening and night rainfall is typical during the southwest monsoon phase
Rainfall data and district-wise impact
1. Automatic rain gauges recorded 7 cm of rainfall each at Arakkonam in Ranipet district and Jaya Engineering College in Tiruvallur
2. Ambattur, Ayapakkam, and Korattur followed with 6 cm each, while other locations in Tiruchi, Cuddalore, Vellore, Nilgiris, Salem, Erode, and Pudukkottai saw light to moderate showers
3. Villupuram district topped the charts with 19 cm of rainfall in the past 24 hours, followed by Tirupattur with 17 cm
4. Specific locations such as Vadaputhupattu, Kedar, Vaniyambadi, Jamunamarathur, Vanamadevi, and Panruti recorded between 13 to 16 cm
Forecast for the weekend and beyond
1. The Regional Meteorological Centre predicts light to moderate rainfall over Chennai, Villupuram, Tiruvallur, Chengalpattu, and Nilgiris until Sunday
2. Thunderstorms accompanied by lightning and gusty winds reaching up to 40 kmph are likely in isolated pockets
3. A low-pressure area is expected to develop over the Northeast Bay of Bengal after September 25, which could influence rainfall patterns across Tamil Nadu
4. The extended forecast suggests continued shower activity through September 25, with temperatures ranging between 26 to 33 degrees Celsius
Air quality and visibility
1. Chennai’s air quality index stood at 58, indicating satisfactory conditions
2. Visibility remained moderate at 5 km due to fog and haze in some parts of the city
3. Humidity levels hovered around 64 percent, contributing to the muggy yet pleasant feel
Public response and urban impact
1. Residents welcomed the cooler weather, with many taking to social media to share images of rain-washed streets and cloudy skies
2. Traffic was mildly affected in low-lying areas due to waterlogging, particularly in parts of Vellore and Tiruvallur
3. Authorities have advised caution during evening commutes, especially in areas prone to flash flooding
4. Schools and offices remained operational, with no major disruptions reported
Conclusion
The overnight showers have not only cooled Chennai’s skyline but also signaled a broader weather shift across north Tamil Nadu. With more rain on the horizon and a low-pressure system brewing in the Bay of Bengal, the region is set for a week of cloudy skies, scattered thunderstorms, and welcome breezes. As the monsoon continues its dance, residents are advised to stay updated and enjoy the fleeting charm of rain-kissed mornings.
Sources: The Hindu, News9Live, Outlook India, MSN Weather
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