This is how the city was this Thursday at 10.30 in the morning (Photo/Franco Fafasuli)
The blanket of clouds that covered the City of Buenos Aires this Thursday morning was the prelude to the storm that broke out later and that will continue until the end of the day, according to the National Meteorological Service (SMN). But what were the reasons for daytime darkening? Why is the rainfall so intense? How long will the flood continue? What do the specialists recommend?
To answer these and other questions, Infobae contacted the SMN meteorologist, Lucas Berengua, who explained that the clouds that make up this bad weather system are called “cumulonimbus.”
“When there is more than one cloud close to the other, and they move very slowly, they have the ability to be very thick in the atmosphere and prevent sunlight from reaching the surface, as we are normally used to. That was why this morning the sky gradually darkened. As this storm cloud, called cumulonimbus, advances, it causes significant rainfall in short periods, hail, electrical discharges and daytime darkening, ”he said.
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Since 2:00 p.m., in the Buenos Aires Metropolitan Area (AMBA) and towns in the northeast, south, and east of Buenos Aires, an orange alert is in effect for rains, which already exceed 100 millimeters. “The alert is not only governed by the meteorological phenomenon and its intensity, but also puts the risk situation at stake. That is, the amount of population that will be affected by the phenomenon. Since last night, the situation has become critical in many parts of the Buenos Aires suburbs, La Plata and the Federal Capital, where from noon this Thursday the storms began to repeat themselves again, ”explained Berengua.
Federal Capital this Thursday at 11 in the morning (Photo/Lihueel Althabe)
According to the consulted expert, the cumulonimbus meteorological phenomenon began its development on Wednesday afternoon. “During Tuesday and Wednesday, the north wind brought very hot and humid air to the center of the country and to the north of the province of Buenos Aires. The temperatures soared until they reached about 28 degrees in the Capital and in the North of Buenos Aires and up to 38 in the Argentine North,” Berengua explained to Infobae.
In contrast to this, the meteorologist explained, a very cold air mass of polar origin is producing snowfall in the provinces of Mendoza, Neuquén, and Río Negro, while advancing north. All this situation led to the formation of a low pressure center in the Río de la Plata, the Atlantic Coast of Buenos Aires and the Atlantic Coast of Uruguay.
“This low pressure center generated a very favorable environment for dangerous storms to develop, as happened in the province of Buenos Aires, where a huge line of storms was recorded that affected the cities of Olavarría, Azul, Tandil, Rauch, the South of Dolores and the Atlantic Coast of Buenos Aires. Very large hailstones and significant rainfall fell. The same thing happened in the Federal Capital and surroundings”, added the expert.
For the remainder of this Thursday afternoon, the bad weather conditions will continue, with a probability of rain and storms that, locally, can be strong with gusts and hail fall. Starting tonight, the rains are expected to begin to slowly subside. “For Friday there will be an increase in the intensity of the wind from the southwest and south sectors, with gusts that exceed 80 kilometers per hour. On the Atlantic coast of Buenos Aires, they could exceed 100 kilometers per hour, due to the effect of the low pressure center,” warned Lucas Berengua.
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“Due to the wind, for Friday and Saturday there is also a meteorological alert in the province of Buenos Aires and in some sectors of the Atlantic Coast,” he added.
Hail in General Rodriguez
On the occasion of the orange alert and anticipating the increase in wind for the coming days, the National Meteorological Service recommends not taking out the garbage; secure objects that can be thrown by the wind; remove objects that prevent water from draining; do not drive on flooded or affected streets; avoid outdoor activities and do not take shelter near trees or power poles that could fall.
Taking into account the floods, given the risk of water entering a home, they recommend cutting off the electricity supply. Likewise, it is advisable not to stay on beaches, rivers, lagoons or pools, to be vigilant in case of possible hail fall, to get information from the authorities and to always have an emergency backpack ready with a flashlight, radio, documents and telephone.
20 photos of the storm that affected La Plata and surroundings Due to the storm there are more than 100 flights affected between Ezeiza and Aeroparque