Extremely Powerful Bomb Cyclone Wreaks Havoc in Florianópolis, SantaCatarina, & Rio Grande, Brazil

Full intended title: Extremely Powerful Bomb Cyclone Wreaks Havoc in Paraná, Santa Catarina, & Rio Grande do Sul States, Brazil - Jun. 30, 2020
Why is it called a bomb cyclone?
Meteorologists have likened the sudden drop in pressure to a bomb going off, using words such as “explosive cyclogenesis” and “bombogenesis” to describe the storm's formation process.
Though it might not sound like it, “bomb cyclone” is a legitimate scientific term.
“You can look it up in the American Meteorological Society glossary,” Swain said, adding that the term specifically refers to the speed at which a storm forms. “It doesn't necessarily refer to the absolute strength of the storm system.”
How exactly does a bomb cyclone differ from a hurricane?
Hurricanes tend to form in tropical areas and are powered by warm seas. For this reason, they’re most common in summer or early fall, when seawater is warmest.
In contrast, bomb cyclones don’t need balmy ocean waters in order to form. While they sometimes arise over the ocean, they can also appear over land — as was the case with the cyclone that hit the northern Plains in March 2019.
To stay safe when a bomb cyclone or other intense storm is approaching, experts recommend stocking up on canned food, water, first aid supplies, a flashlight and batteries. Make sure your car has a full tank and is ready to go. Homeowners should be ready with salt and a snow shovel to clear walkways and driveways.
Full intended title: Extremely Powerful Bomb Cyclone Wreaks Havoc in Paraná, Santa Catarina, & Rio Grande do Sul States, Brazil - Jun. 30, 2020

Windstorms and storms recorded this Tuesday (30th) in the south of Brazil caused deaths in Santa Catarina, and Rio Grande do Sul and left a trail of destruction in the three states of the region, with falls from trees, unhealthy houses, lack of energy and road blocking.

The Civil Defense of Santa Catarina confirmed at least three deaths. A 78-year-old woman from Chapecó, in the west, was hit by a tree. A man from Santo Amaro da Imperatriz, the metropolitan area of Florianópolis, was hit by high voltage wires. In Tijucas, on the Santa Catarina coast, a death was caused by a fall in structure. One person is missing.

In Nova Prata, in the Serra Gaúcha, a death by burial was recorded in the morning due to a landslide caused by the large volume of rain. The region is one of the hardest hit in the state with showers and winds caused by a cold front associated with an extratropical cyclone, called a "bomb cyclone."

According to the state meteorological service, the storms were also caused by the passage of a cold front associated with the extratropical cyclone on the coast of Rio Grande do Sul. Civil defense bulletin of 15h indicates that the winds reached 120 km / h in the mountain range of Santa Catarina.

Read more: https://www1.folha.uol.com.br/interna...

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