Brazil severe storm warning: highest-level alert for Santa Catarina and Rio Grande do Sul
Key Points
- Inmet issued the highest-level storm warning for Santa Catarina and Rio Grande do Sul on 30 Ağustos.
- Warning: rainfall exceeding 60 mm per hour, winds over 100 km/h, hail, and risks of building damage, power outages, and flooding.
- Eight regions (including Grande Florianópolis) are under warning; the cold front may trigger cyclone formation.
- A possible extratropical cyclone around 1 Eylül could affect South and Southeast Brazil.
By the Numbers
The Brazilian Meteorology Institute (Inmet) issued the highest-level storm warning for the states of Santa Catarina and Rio Grande do Sul on 30 Ağustos Pazartesi. The warning forecasts rainfall exceeding 60 millimeters per hour, wind speeds surpassing 100 km/h, and hail; it highlights risks of building damage, power outages, agricultural losses, falling trees, flooding, and chaos on road transport.
The warning covers eight regions: Serrana, Oeste Catarinense, Vale do Itajaí, Noroeste Rio-grandense, Grande Florianópolis, Sul Catarinense, Nordeste Rio-grandense, and Norte Catarinense. With the advance of the cold front affecting the area, there is a forecast for the formation of an extratropical cyclone over the South Atlantic between Pazartesi-Salı (1 Eylül).
The cyclone's formation depends on atmospheric conditions in the coming days; if the low-pressure area deepens and a cyclonic circulation organizes, the system could bring colder air masses, heavy rain, and strong winds to South and Southeast Brazil.
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Frequently Asked Questions
- Which regions are under warning?
- Eight regions in Santa Catarina and Rio Grande do Sul: Serrana, Oeste Catarinense, Vale do Itajaí, Noroeste Rio-grandense, Grande Florianópolis, Sul Catarinense, Nordeste Rio-grandense, and Norte Catarinense.
- What hazards does the warning cover?
- Rainfall exceeding 60 mm per hour, winds over 100 km/h, hail, building damage, power outages, agricultural losses, falling trees, flooding, and chaos on road transport.
- When could the potential cyclone become effective?
- An extratropical cyclone that may form between Pazartesi-Salı (1 Eylül) could bring cold air, heavy rain, and strong winds to South and Southeast Brazil.
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