Overview

• Argentine SMN has activated yellow and orange warnings across nine provinces for sustained winds of 35–50 km/h, Zonda gusts over 75 km/h and cordilleran winds exceeding 100 km/h
• Heavy rainfall and persistent snowfall are forecast to deliver 40–90 cm of accumulation in the Andes of Mendoza and San Juan, prompting closures of high mountain passes
• Mendoza’s Dirección de Contingencias Climáticas predicts a high of 15 °C and low of 8 °C with continuous rain and mountain snow risking transport disruptions
• Mexican SMN warns monsoon-driven thunderstorms with electrical activity and possible hail in Baja California Sur, Sonora, Chihuahua, Durango, Sinaloa and parts of Nayarit
• A 40–45 °C heat wave is expected to strike northern, central Mexico, leading authorities to advise hydration, limit outdoor exposure and monitor vulnerable populations