São Paulo on Flood Alert as Storm Warnings Intensify Across South and Southeast Brazil

Overview

• City officials placed São Paulo under municipal attention for flooding after midday storms, with strong cells over the South Zone and a risk of lightning and gusty winds.
• State civil defense sent a severe cell-broadcast alert to the Baixada Santista warning of heavy rain, thunder and strong winds, with guidance to leave beaches and avoid exposed areas.
• Inmet’s orange alerts cover São Paulo and large areas of the South, Southeast and Center-West, forecasting 30–60 mm/h rain, 60–100 km/h gusts and isolated hail.
• Parts of the South remain at red-level risk and reported damage, including 97.8 km/h gusts in Porto Alegre that unroofed buildings, downed trees and disrupted services.
• Forecasts indicate peak instability through Tuesday, with gradual improvement in São Paulo from Wednesday as the front shifts away; authorities urge monitoring official updates and emergency contacts 199/193.