São Paulo monitoring reports 75.4 mm of rain in 24 hours at Mirante de Santana
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What happened
São Paulo's official weather monitoring said on September 12 that the Mirante de Santana station measured 75.4 mm of rain over the prior 24 hours, lifting the city's rainfall for September to nearly 200 mm.
Why it matters
A high 24-hour rainfall reading in São Paulo can lead to localized flooding, transport interruption, school and work disruption, and requests for municipal, state, and federal emergency support if additional rain follows or drainage systems fail.
Official monitoring in São Paulo reported on September 12 that the Mirante de Santana station recorded 75.4 mm of rain in the previous 24 hours, taking the city's September accumulated rainfall close to 200 mm. The reading was reported as the highest 24-hour rainfall total in Brazil for the period. The event turns heavy precipitation in Brazil's largest city into an immediate civil-defense coordination issue, with possible knock-on effects for transport, urban drainage, and emergency support requests over the next 24-72 hours.
Watch for
São Paulo Civil Defense Agency statement on emergency response measures by September 21 Satellite imagery confirming ongoing rainfall patterns over São Paulo by September 21 Local transportation authority report on disruptions due to flooding in São Paulo by September 21 Federal government announcement of potential emergency funding for São Paulo by September 22
Sources
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