Cyclone-bomb from South Region of Brazil in 2020

The bomb cyclone from South of Brazil reached the states of Santa Catarina, Rio Grande do Sul and Paraná on June 30, 2020. Twelve deaths were confirmed, ten in Santa Catarina, one in Rio Grande do Sul and one in Paraná. In addition to almost 1.9 million consumers without electricity in the three states.[1]

Bomb cyclone on South Region of Brazil in 2020
Three-hour Cyclone Bomb animation on July 1, 2020.
TypeExtratropical cyclone
Bomb cyclone
Duration30 June 2020 (2020-06-30)–3 July 2020 (2020-07-03)
Highest winds
Power outagesSanta Catarina:
  • 1.5 million users without electricity[1]

Rio Grande do Sul:

  • 193,000 users without electricity[2]

Paraná:

  • 145 thousand users without electricity[3]
CasualtiesSanta Catarina:

Rio Grande do Sul:

Paraná:

  • 1 death
Areas affectedSouth and Southeast Region of Brazil

The cyclone bomb, as it was christened, is nothing more than an intense system of low atmospheric pressure, and is called extratropical.[4]

History
Construction hit by strong cyclone winds

During strong storms that hit the South Region of Brazil on June 30, 2020, cities registered winds of more than 120 km/h in several points of Santa Catarina, Rio Grande do Sul and Paraná. This phenomenon is known as "cyclone-bomb", because in this region a sharp drop in atmospheric pressure was recorded over a period of 24 hours, causing cyclones that were not predictable by meteorologists.[5]

Shed without roofing tiles

Until 9pm BRT on the 30th, three deaths were registered as a result of cyclones in Santa Catarina, one in the city of Chapecó, one in Santo Amaro da Imperatriz and one in Tijucas, besides one death in Rio Grande do Sul, in the city of Nova Prata.[1][2]

References
  1. "Ciclone bomba: sobe para 10 o número de mortes no Sul do país; 686,6 mil imóveis estão sem energia em SC" [Cyclone bomb: death toll rises to 10 in the South; 686,600 properties are without power in SC]. G1 (in Portuguese). July 1, 2020. Retrieved July 1, 2020.
  2. "Chuva, granizo e vento forte provocam uma morte e estragos em várias cidades do RS" [Rain, hail and strong wind cause death and damage in several cities of RS]. GaúchaZH (in Portuguese). 2020-06-30. Retrieved 2020-07-01.
  3. "Ventos de quase 100 km/h derrubam árvores e deixam 193 mil imóveis sem energia, em Curitiba" [Winds of almost 100 km/h cut down trees and leave 193 thousand properties without energy, in Curitiba]. G1 (in Portuguese). Retrieved 2020-07-01.
  4. Ribeiro, Joyce (July 1, 2020). "Entenda o que é um ciclone bomba e os estragos por ele provocados" [Understand what a cyclone bomb is and the damage it causes] (in Portuguese). R7.com. Retrieved July 1, 2020.
  5. "Existe ciclone bomba?" [Exist a cyclone bomb?]. Terra (in Portuguese). 2020-06-30. Retrieved 2020-07-01.
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