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SMN Warns of Santa Rosa Cyclogenesis, Issues Alerts for Central Argentina This Weekend

Models indicate locally more than 100 mm of rain and gusts above 50 km/h, with Buenos Aires’ August total possibly nearing 200 mm.

Overview

  • SMN forecasts the system to start impacting on Saturday morning, with peak intensity from Saturday night into early Sunday across the AMBA and central provinces.
  • Yellow and orange warnings are in effect for storms and heavy rain in Buenos Aires, Santa Fe, Entre Ríos and Chaco, with broader impacts projected for Mendoza, San Luis, La Pampa and Córdoba.
  • Separate yellow wind alerts cover cordilleran areas of Salta, Catamarca, La Rioja and San Juan (with Jujuy added for Saturday), where winds of 60–69 km/h and gusts up to 78 km/h are expected.
  • In the AMBA and central region, accumulated rainfall could surpass 100 mm in places and winds may exceed 50 km/h, with Sunday highlighted as the most difficult day for Buenos Aires and La Plata.
  • Authorities relayed SMN safety advice, including seeking shelter, securing loose objects, avoiding coastal and flooded areas, and preparing an emergency kit.