The India Meteorological Department (IMD) on Thursday issued a yellow nowcast warning for Mumbai, Thane and Raigad, forecasting light to moderate rainfall at isolated places over the next three hours. The advisory, issued at 7 am on June 25, urged residents to remain cautious as active southwest monsoon conditions continue across the Mumbai Metropolitan Region. Authorities have advised commuters and residents to stay updated with official weather bulletins and take necessary precautions while travelling.
The weather alert comes a day after Mumbai witnessed its first spell of intense monsoon rainfall this season, causing widespread disruption across the city. According to the Brihanmumbai Municipal Corporation (BMC), heavy rain led to 113 incidents of tree and branch falls during the past 24 hours. Of these, 40 incidents occurred in the island city, 23 in the eastern suburbs and 50 in the western suburbs. Civic teams were deployed to clear affected areas and restore normal traffic movement.
Former senior IMD official K. S. Hosalikar said moderate to intermittent heavy rainfall is likely over parts of the west coast, stretching from Raigad to Goa and extending into isolated areas of Karnataka over the next three to four hours. For Mumbai, he forecast partly cloudy skies accompanied by occasional light showers during the next two to three hours. He also advised residents to closely monitor IMD updates as weather conditions could change rapidly during the active monsoon phase.
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The IMD's Regional Meteorological Centre in Mumbai has been issuing frequent nowcast alerts as the southwest monsoon strengthens over the Konkan region. These short-term forecasts are intended to provide timely information on developing weather conditions, helping local authorities and the public prepare for sudden rainfall, waterlogging and traffic disruptions. Emergency response teams remain on alert to respond to any weather-related incidents.
Wednesday's heavy rainfall caused significant disruption to both road and suburban rail services, with several low-lying areas witnessing severe waterlogging during peak morning hours. Some parts of Mumbai recorded more than 300 mm of rainfall in the 24-hour period ending at 8 am. Malvani in the western suburbs received 340 mm of rain, while Parel in central Mumbai recorded 334 mm, making them among the worst-affected locations during the downpour.
Rainfall intensity eased later in the day, with the island city recording 12 mm, the eastern suburbs 6 mm and the western suburbs 7 mm between 8 am and 2 pm. The southwest monsoon officially arrived in Mumbai on Tuesday, around 13 days later than its normal onset date. While the current yellow alert does not indicate extremely severe weather, authorities have urged residents to remain vigilant, avoid unnecessary travel to waterlogged areas and follow official advisories until weather conditions improve.
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