Overview

• The latest INMET warning is in effect from September 19 at 09:20 to September 20 at 10:00, covering areas such as North Mato Grosso, East Rondônia, Southwest Pará, multiple zones of Amazonas, and regions of Mato Grosso including Madeira‑Guaporé.
• Forecasters expect rainfall of 20–30 mm per hour or up to 50 mm in a day, sustained winds of 40–60 km/h, and the possibility of hail during the alert window.
• Officials note a low overall risk level but flag potential localized impacts including power outages, falling tree branches, urban flooding, and electrical discharges.
• Public guidance includes avoiding shelter under trees, not parking near transmission towers or billboards, and minimizing use of plugged‑in electronics; emergencies should be reported to Defesa Civil (199) or Corpo de Bombeiros (193).
• A prior notice covered parts of Rio Grande do Sul from September 18 at 13:00 to September 19 at 10:00, indicating a progression of short‑term storm alerts across different regions.