This Saturday morning marked a rare episode in Buenos Aires. In just five hours, between 4 am and 9 am, 115 millimeters of rain fell on the Argentine capital, almost the total predicted for the entire month of October. According to the Clarín newspaper, the National Meteorological Service confirmed that the accumulation reached 123 millimeters in 24 hours, a value close to the historical record of 132 mm recorded in 2014.
According to MetSul Meteorologia, this is the second highest daily volume in October since measurements began in 1906. Only in 1944, 2014 and now in 2025 did the city surpass the 100 millimeter mark in a single day this month.
The storm caused flooding in several neighborhoods, blocked sections of Avenida General Paz and caused traffic disruptions. The intensity of the rain also knocked down trees and affected power supplies in some areas. Local authorities issued warnings for strong winds coming from the south, which could worsen the situation due to the saturated ground.
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Meteorologist Marcelo Madelón explained to Clarín that the phenomenon was the result of the encounter of hot and humid tropical air with a cold front that slowly advanced over the region. This movement created strong atmospheric instability, favoring the formation of heavy clouds and the persistence of rain for several hours.
Although the storm has already lost strength, on Saturday night the population still faces flooded streets and interruptions to public transport.
