Extratropical Cyclone Threatens Santa Catarina with Flooding and High Temperatures This Weekend
Santa Catarina is bracing for a weekend of severe whether as an extratropical cyclone approaches,bringing with it the risk of heavy rainfall,flooding,and possibly damaging winds. Temperatures are expected to soar before the arrival of the cold front, creating a volatile mix of heat and instability.
The approaching cyclone is forecast to bring widespread instability across the state beginning Saturday, October 10th. According to the state Civil Defense, the initial impact will be felt in the Greater West region, with conditions deteriorating throughout the day and spreading to other areas. A low-pressure system is driving the formation of the extratropical cyclone, which will move around Santa Catarina, increasing the likelihood of thunderstorms and heavy downpours at any time.
The combination of heat and humidity is expected to exacerbate the situation, intensifying the risk of flooding, flash floods, roof damage, falling trees and branches, and disruptions to the electrical grid, especially during the afternoon and evening hours. Temperatures will reach a high of 35°C (95°F) along the South Coast, while the Plateaus and Alto Vale do Itajaí will experience temperatures between 20°C (68°F) and 28°C (82°F). The Greater West region will see temperatures ranging from 25°C (77°F) to 30°C (86°F).
on Sunday, October 11th, the combined effect of the cold front and the cyclone will continue to generate unstable conditions, though with slightly reduced intensity. Isolated storms and showers are anticipated as the cyclone shifts towards the sea, increasing moisture transport and interacting with the advancing cold front.
The North Planalto, North Coast, Vale do itajaí, and Greater Florianópolis areas are expected to experience the most intense storms, with a high to very high risk of associated hazards, including flooding, flash floods, and infrastructure damage. Temperatures on Sunday will reach 33°C (91°F) on the South Coast, with the Plateaus and Alto Vale do Itajaí experiencing temperatures between 20°C (68°F) and 30°C (86°F), and the Greater west between 20°C (68°F) and 27°C (81°F).
Here’s a detailed regional forecast for Saturday, October 10th:
- Far West: Minimum 17.7°C (63.9°F), Maximum 26.3°C (79.3°F), Condition: Sun, clouds, and rain showers with lightning.
- West: Minimum 16.3°C (61.3°F), Maximum 26.3°C (79.3°F), Condition: Sun, clouds, and rain showers with lightning.
- greater florianópolis Coastal: Minimum 17.4°C (63.3°F), Maximum 29.8°C (85.6°F), Condition: Sun, clouds, and rain showers with lightning.
- North Plateau: Minimum 15.9°C (59.4°F), Maximum 26.2°C (79.2°F), Condition: Sun, clouds, and rain showers with lightning.
- North Coast: Minimum 19.0°C (66.2°F), Maximum 32.5°C (90.5°F), Condition: Sun, clouds, and rain showers with lightning.
Residents of Santa Catarina are urged to stay informed about the latest weather updates and heed any warnings issued by local authorities as the cyclone approaches, preparing for potentially hazardous conditions throughout the weekend.
