Overview

• The Servicio Meteorológico Nacional forecasts very heavy rainfall (75–150 mm) in Sinaloa, Nayarit, western Jalisco, Colima, southern Oaxaca and Chiapas on August 12–13, raising flood and landslide risks.
• Heat alerts remain active in northern and coastal Mexico with temperatures expected to exceed 45 °C in parts of Baja California and Sonora, heightening health and infrastructure concerns.
• Mexico City’s Protección Civil predicts afternoon and evening storms with lightning, possible hail and gusts over 50 km/h, estimating 15–29 mm of rain across the valley.
• Argentina’s SMN issued a yellow Zonda alert for Malargüe in southern Mendoza, warning of sustained winds of 35–50 km/h and gusts above 60 km/h that can reduce visibility and humidity.
• A yellow extreme-cold alert covers western Santa Cruz province for August 13, cautioning vulnerable populations about subzero temperatures and related health risks.