The National Meteorological Service issued alerts for strong storms and wind gusts for Saturday, December 20, in the AMBA and much of the country. Heat relief is expected with temperatures between 22°C and 27°C in Buenos Aires, while the north remains hot. Storms are advancing earlier, impacting the early morning and morning in the central region.
Saturday, December 20, signals the start of an unstable weekend in Argentina, according to the National Meteorological Service (SMN) forecast. A storm front will advance over the central region, causing a notable temperature drop after recent intense heat. The SMN has issued preventive warnings for phenomena of varying intensity, affecting urban areas and interior provinces.
In the Buenos Aires Metropolitan Area (AMBA), an unstable day is expected with a chance of isolated storms during the early morning and morning. The minimum temperature will be 22 °C and the maximum 27 °C, providing relief from extreme heat. Humidity will exceed 85%, creating a heavy feeling before the rains. In the rest of Buenos Aires Province, similar conditions will include south-sector gusts up to 50 km/h, with mostly cloudy skies and improvements in the afternoon. The UV index will be moderate due to cloud cover.
Outside the AMBA, northern Argentina, such as Salta and Formosa, will remain stiflingly hot with highs over 35 °C. In contrast, areas like Cuyo, Córdoba, and San Luis will see cool air influx and possible intense precipitation, with hail risk. Patagonia will be more stable but windy, with temperatures between 15 °C in Santa Cruz and 24 °C in Río Negro, and prevailing west winds.
For Sunday, December 21, conditions will improve in the Federal Capital, with cloudy skies but no significant rain, and temperatures from 22 °C to 29 °C. Instability will shift northeast, affecting Misiones and Corrientes. Monday, December 22, will bring dry and sunny weather, with highs of 32 °C in CABA and heat returning. Monitoring SMN updates is advised, along with sun protection given the high UV index in following days.
