Ciclone Tropical
In short
An extratropical cyclone is currently forming between Argentina and Uruguay, bringing a high risk of storms, heavy rain, and wind gusts exceeding 90km/h to southern Brazil. This weather system is expected to trigger intense rainfall of up to 180mm across several states.
In plain words
It is a large weather system that forms when warm and cold air masses meet. It creates spinning winds that bring heavy rain, hail, and strong gusts to a wide area.
A simple example
A storm system moving through Rio Grande do Sul might cause sudden flooding and damage from wind gusts hitting 90km/h.
Why it matters
These systems can cause severe flooding, landslides, and power outages. They are particularly dangerous when the ground is already soaked from previous rain.
Easy to mix up
Do not confuse an extratropical cyclone with a tropical cyclone; the latter is fueled by warm ocean water and is typically more intense.
Sources
- Ciclone extratropical aumenta risco de temporais e ventos acima de 90km/h no Brasil; veja rota
- Ciclone extratropical traz risco de temporais e alagamentos no Sul
- Ciclone extratropical coloca Oeste do Paraná em alerta vermelho e instabilidade atinge todo o país
- Fim de semana terá temporais e passagem de ciclone extratropical no RS