severe Weather Alert: Heavy Rainfall and Flood Risk Grips Southeastern brazil and Santa Catarina
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A red alert for “great danger” has been issued across parts of southeastern Brazil, with forecasts predicting rainfall exceeding 100 mm per day, raising concerns of widespread flooding and landslides.
Brazil’s National Institute of Meteorology (Inmet) updated the severe weather warning on Saturday, January 7th, extending the alert thru Sunday, January 8th, for the states of São Paulo, Rio de janeiro, and Minas Gerais.The forecast indicates a meaningful risk of overflowing rivers and landslides, particularly in areas already prone to such disasters.
Why did this happen? A combination of atmospheric conditions, including a slow-moving front and high levels of moisture, created the potential for prolonged, intense rainfall across southeastern Brazil. A separate cold front is impacting Santa Catarina.
Affected regions
The highest risk areas within the affected states include:
- Minas Gerais: The south and southwestern regions are under particular scrutiny.
- Rio de Janeiro: The South Fluminense region and the greater Rio de Janeiro Metropolitan Area face the most immediate threat.
- São Paulo: The Vale do Paraíba Paulista, the São Paulo Metropolitan Area, and the broader São Paulo Macrometropolitan region are bracing for heavy rainfall.
Safety Recommendations from Inmet
Authorities are urging residents in at-risk areas to take immediate precautions. Inmet recommends the following:
- Disconnect electrical appliances and shut off the general energy supply to homes.
- seek shelter in a safe, secure location.
- Carefully observe slopes for any signs of instability.
- Protect belongings from potential floodwaters by securing them in waterproof bags.
- Contact the Civil Defense (phone 199) or the Fire Department (phone 193) for assistance and updated information.
Who is affected? Millions of residents across São Paulo, Rio de Janeiro, Minas gerais, and Santa Catarina are possibly impacted by the severe weather, particularly those living in vulnerable areas prone to flooding and landslides.
Storms Threaten Santa Catarina
Further south,the state of Santa Catarina is also bracing for severe weather. A new cold front approaching the region between Saturday and Sunday morning is expected to bring thunderstorms and intense rainfall,especially to greater Florianópolis,parts of the Itajaí Valley,the North Coast,the South Coast,and the Plateaus.
Civil Defense officials in Santa Catarina warn of a high risk of damage to roofs, disruptions to the electrical network, falling trees and branches, occasional hail, and both flooding and flash floods. While the risk is considered moderate in other areas of the state, residents are advised to remain vigilant.
what are the specific threats? The primary threats include heavy rainfall exceeding 100mm, widespread flooding, landslides, damage to infrastructure (roofs, power lines), and potential disruptions to daily life.
Current Alerts in Santa Catarina
The Civil Defense has issued warnings for:
- Intense and persistent storms expected on Saturday and Sunday, January 7th and 8th.
- A heat wave forecast between Saturday, January 7th, and Monday, January 9th.
Civil Defense recommends seeking shelter during storms, staying away from windows and loose objects, avoiding travel near trees, signs, and power lines during strong winds, and never
How did it end? As of January 8th, the intense rainfall began to subside in some areas of southeastern Brazil, though flood warnings remained in effect. Santa Catarina continued to experience storms and a heatwave. Damage assessments were underway, and authorities were focused on providing assistance to affected communities. the
