IMD issues yellow alert: Mumbai records highest single-day rainfall in August
According to records from the city's automatic weather stations, the highest rainfall was recorded in the western suburbs at an average of 41.4 mm, followed by 32.4 mm in the eastern suburbs and 21 mm in the island city division.
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According to meteorologists, as of Wednesday, there was a low-pressure area over west central and adjoining northwest Bay of Bengal, off North Andhra Pradesh and South Odisha coasts. Weeks after reeling under a dry spell, Mumbai woke up to its rainiest day of August on Thursday morning, as the city recorded its highest single-day rainfall at 53 mm. The intensity of showers is likely to increase, with the India Meteorological Department (IMD) issuing an orange alert for Mumbai and its neighbouring districts on August 17, while a yellow alert will remain in place throughout the next five days.
After experiencing overcast skies and drizzles throughout Wednesday, the city experienced moderate showers overnight. IMD data showed between Wednesday and Thursday morning, the Santacruz station recorded 50 mm, while the Colaba coastal observatory registered 53 mm.
According to records from the city’s automatic weather stations, the highest rainfall was recorded in the western suburbs at an average of 41.4 mm, followed by 32.4 mm in the eastern suburbs and 21 mm in the island city division.
Some pockets of the city received heavy rain, with Malad receiving 85 mm, followed by 72 mm in Andheri and 70 mm in Powai, according to BMC reports.
The moderate spells continued into Thursday, when a yellow alert was sounded, with the Colaba station recording 34.8 mm between 8.30 am and 5.30 pm on Thursday and Santacruz station received 8.3 mm. This comes as a respite to the city, which experienced an extended dry spell over the past few weeks, making it Mumbai’s rainiest day in August so far. The city’s suburban station received an average of 566 mm in August while the Santacruz observatory received only 114 mm till August 14.
Pointing to several active systems in the region, the IMD said that Maharashtra, including Mumbai and the extended Konkan region, is set to witness a resurgence of rain with a forecast of heavy rainfall between August 13 and August 19.
According to meteorologists, as of Wednesday, there was a low-pressure area over west central and adjoining northwest Bay of Bengal, off North Andhra Pradesh and South Odisha coasts. An associated upper air cyclonic circulation is slated to intensify and become well-marked over the next 24 hours. An east-west trough is also currently running from the Bay of Bengal up to the northeast Arabian Sea. “Under its influence, the rainfall activity over Maharashtra is likely to increase during 13-19 August 2025,” said an IMD scientist.
Owing to the forecast of increased showers, the IMD issued a fresh orange alert for Mumbai and Thane for August 17, while Palghar district will remain under an orange alert amid the possibility of “heavy to very heavy rainfall” on August 18. The neighbouring districts of Raigad and Ratnagiri have been placed under an orange alert for three days between Saturday (August 16) and Monday (August 18).
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