The passage of an extratropical cyclone affected several areas of Rio state. Over the weekend, the number of calls to the fire department reached 239 due to strong winds. The gusts also brought down 108 trees in the capital. A series of events raised alarms about the intensification of climate phenomena. Meteorologist Andrea Ramos said the public needs to get used to this type of phenomenon happening more frequently. Experts explain that the rain and wind strength, which reached 70 kilometers per hour, is a direct reflection of what science calls “extreme times.”
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–It’s a trend. According to the World Meteorological Organization (WMO), we are experiencing increasingly extreme events, which are becoming more intense and increasing in frequency, he warned.
Ramos said therefore that the effects of the cold front caused by this cyclone were felt across Rio state, causing hundreds of trees and walls to collapse even though it did not reach the city.
— Extratropical cyclones are so named because they remain over the high seas. This cyclone is caused by two situations. The first is coastal winds, with gusts up to 100 km/h. And it is also characterized by the formation of cold fronts that cause rain – he explains.
Experts emphasize that rising average global temperatures and the frequency of extreme weather events are already observable effects. She remembers that 2024 was the hottest year in history, and the first half of 2025 is likely to be the same.
— Whether you believe in climate change or not, two effects are already occurring, as we felt yesterday: rising temperatures and intensifying weather events — he points out.
Although seemingly uncommon in Brazil, cyclone-related tornadoes are not uncommon. The southern region of the country has one of the highest rates of tornadoes in South America, along with Argentina and Paraguay.
For example, a study by the State University of Campinas (Unicamp) confirmed that more than 200 tornadoes occurred between 1990 and 2011, making Brazil one of the countries in the world with the second highest number of tornadoes after the United States.
The study also shows that the development of cyclones, such as extratropical cyclones, is directly related to an increase in conditions suitable for extreme events. More powerful tornadoes classified as F4 or EF4 with wind speeds of 333 km/h to 418 km/h are extremely rare in Brazil, but they have already been recorded and represent the highest strength ever reached in the country.
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