On Sunday, heavy rainfall in São Paulo resulted in the overflow of three streams in the South Zone, causing widespread flooding and prompting alerts from local authorities. The overflowing streams, including Córrego Moinho Velho and Córrego Ipiranga, led to severe water accumulation on major roads, with vehicles, including ones from the Enel utility company, seen floating amidst the floodwaters. The Ipiranga and Santo Amaro subprefectures have issued alerts in response to the situation, indicating the seriousness of the flooding risk.

As a precaution, the Ipiranga local authority declared a state of alert shortly after reports of the stream overflow, which affected traffic and public safety. Footage captured by various news outlets showcased the dire conditions on Avenida Ricardo Jafet, where numerous cars were seen struggling in the high waters, and employees from Enel were photographed standing on top of their submerged vehicles, emphasizing the urgency of the flooding situation. The authorities advised the public to remain vigilant and stay indoors where possible.

Citywide, São Paulo has remained on a flood alert since earlier in the day as rainstorms continue to impact the region. The rapid onset of flooding in urban areas is not uncommon in São Paulo, but this incident highlights the ongoing challenges the city faces concerning infrastructure and disaster preparedness during heavy rainfalls. The situation calls for a review of maintenance and upgrades of drainage systems as well as other urban planning measures to handle such extreme weather events more effectively.