With the arrival of autumn, for the long weekend, the National Meteorological Service (SMN) issued several storm warnings. He climate continues to decline and during the next few days in the Autonomous City of Buenos Aires (CABA) there will be heavy rains and wind.
For him Saturday March 21a yellow alert is issued throughout the province of Buenos Aires with precipitation during the morning and afternoon showers. According to the SMN: “The area will be affected by rains and storms of varying intensity, some locally strong. They will be accompanied mainly by abundant rainfall in short periods.” Already For the night, it will be cloudy but without rain. According to the entity, temperatures throughout the day will vary between the minimum of 19°C and the maximum of 24°C.
On the other hand, early in the morning they predict that there will be gusts of between 40 and 50 kilometers per hour. However, during the day the yellow alert for wind that can reach between 60 and 69 kilometers per hour. “The area will be affected by southwest winds with speeds between 35 and 50 km/h with gusts that could reach 70 km/h,” said the SMN.
“Furthermore, it is expected electrical activity, occasional hail and gusts which can reach 80 km/h. Values of accumulated precipitation between 40 and 70 mmwhich can be overcome in a timely manner,” detailed the National Meteorological Service.
For him Sunday, Monday and Tuesday no rain is expected but there will be a marked drop in temperature during the day tomorrow, with a minimum of 14° C for tomorrow. The beginning of the week (third day of the long weekend) will be mostly cloudy with a thermal gap of 17°C and 22°C. Finally, Tuesday will be the coldest day of the week (minimum of 12°C), with partly cloudy skies.
The other provinces that will also be affected by the yellow alert on Saturday, March 21 are: Jujuy, Salta, Formosa, Santiago del Estero, Chaco, Santa Fe, Misiones, Corrientes, Entre Ríos, Córdoba and the northeast of La Pampa.
The SMN recommendations In these situations it is: avoid going out. do not take out the trash and clean drains and drains, disconnect appliances and cut off the power supply if water enters, close and move away from doors and windows, remove or secure objects that can be blown by the wind and if you are outdoors, seek immediate shelter in a closed building, house or vehicle.
On the other hand, for the sunday 22the yellow alert will decrease throughout Argentine territory and only remnants will remain in Formosaa portion of Santa Fe and Between Riversmountainous sectors of Mendoza, Rioja and Saint John as well as in Neuquen. A large part of Chubut and the northwest area of Holy Cross.
As for the Monday March 23 The alerts will only be distributed in southern Patagonia (all Santa Cruz and Tierra del Fuegowith a southeast fragment in Chubut) while on the Coast heavy rainfall is also expected as well as the north of Santa Fe and in the southwest of Chaco.
The National Weather Service presented its seasonal report for the autumn 2026 in Argentinaanticipating temperatures averages higher than usual in vast regions of the country and a pattern of precipitation marked by strong geographical differences. The beginning of the season determines a climate scenario whose forecast is key for productive sectors, authorities and citizens.
The SMN specified that “the forecast derives from the consensus between global climate models, national statistical models and the analysis of oceanic and atmospheric conditions.” Assignment to an express category a probability of 33.3% so that the temperature of the station falls in each of the three ranges defined by the tertile method, this being the typical scenario under neutral conditions of the phenomenon El Niño-Southern Oscillation (ENSO). These elements distinguish the 2026 national forecast from previous seasonal cycles.
The “normal” category indicates that the expected rains will be between historical values located between the upper and lower limits of the national climate series. However, the Argentine Northwest and the southern Patagonia They have an increased probability of above-average rainfall. The report warns that this pattern could lead to “water surpluses”.
In relation to temperature, the models indicate a greater probability of high average values in southern Patagonia, northwest, Córdoba, Santiago del Estero, western Santa Fe, western Chaco and western Formosa. In the rest of the country, such as central and northern Patagonia, Cuyo, La Pampa, Buenos Aires and the coast, a trend towards normal or slightly above-average records is expected.
