Although the phenomenon is common, its occurrence during the summer is unlikely and meteorologists claim that the winds in São Paulo were historic
Last week’s windstorms can be considered historic and one of the strongest in the last 30 years in São Paulo. Wind gusts, caused by the extratropical cyclone, reached 98 km/h. But what draws attention is not just the winds themselves, as on other occasions gusts of more than 100 km/h have been recorded.
Extratropical cyclones are not common at this time of year. This is because, for the phenomenon to occur, temperature contrast is necessary. The atmosphere is already warm as we are close to summer.
In an interview with Young PanClimatempo meteorologist Josélia Pegorim, said that the phenomenon will be marked in history. “What caught our attention was the formation of an extratropical cyclone like this in December. We are going to keep this event in that notebook of special events that happened in Brazil. This was an event that will certainly be included in the meteorological climate retrospective for the year 2025,” said the expert.
Cemaden’s Operations and Modeling Coordinator, Marcelo Seluchi agrees with the rarity of the system: “We had winds above this value due to another type of meteorological phenomenon, but associated with cyclones it is really very rare. But even if it had been in winter, it would have been a rare case.”
The capital of São Paulo spent the week living with the effects of the cyclone, until Friday night, more than 685 thousand customers were still without power. According to Civil Defense, more than 770 tree falls were recorded.
Experts say that meteorological models do not indicate a new cyclone, but highlight the arrival of summer. The new season officially begins in the southern hemisphere on December 21, at 12:03 pm Brasília time.
During this period the atmosphere is warmer and more humid, the rains are more voluminous and intense. Consequently, there are conditions for the occurrence of storms.
