Coastal Cyclone Triggers Orange Storm Alert in Rio as Piauí Faces 48-Hour Rain Warning

Overview

• Inmet’s orange alert for Rio de Janeiro remains in effect through Wednesday, warning of 30–60 mm/h or 50–100 mm/day of rain, winds of 60–100 km/h and possible hail with risks of flooding and power outages.
• The cyclonic system forming near the coast is forecast to organize severe storms between late night and morning, then move out to sea later Wednesday, reducing the strongest activity but keeping clouds and humidity high.
• The São Paulo metropolitan area is under Inmet warnings for heavy rain of up to 100 mm/day, gusts reaching 100 km/h and risk of hail, with potential for fallen trees, outages and street flooding.
• Piauí is under a 48-hour yellow alert from Wednesday to Thursday, with expected totals up to 50 mm/day, gusts around 40–60 km/h and higher volumes in the South and Center-North, including Teresina.
• Local authorities issued advisories in Greater Rio, with the capital posting a weather notice and Duque de Caxias in observation stage, and officials urge residents to avoid shelter under trees, steer clear of transmission towers, unplug appliances and contact Civil Defense or firefighters if needed.