In Argentina, the weather has gone from record-breaking heat to extreme cold for five consecutive days. As reported by the National Weather Service, a maximum daily temperature of 38.1 degrees Celsius was recorded in the capital Buenos Aires last Sunday – and on Thursday it was 7.9 degrees, the lowest value recorded in February since 1951. According to meteorologists, the drastic change in the weather is associated with the La Niña weather phenomenon.
First of all, Argentina experienced the eighth heat wave of the summer this week, with temperatures in the center and north of the country rising to 40 degrees.
Snowfall in the mountains
On Friday, however, snow fell on the low peaks of the Sierra de la Ventana mountains, some 350 miles west of Buenos Aires, for the first time since records began for this time of year. In Buenos Aires, the minimum temperature dropped to just four degrees.
According to meteorologist Christian Garavaglia, the cold snap was caused by air masses from Antarctica flowing from Chile over the Andes to Argentina. This “extreme fluctuation” is believed to be caused by a particularly strong expression of La Niña. The fact that air and soil are drier as a result of this phenomenon makes particularly violent temperature fluctuations possible.
Source: Krone

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