Overview

• Argentina’s national weather service maintains yellow and localized orange alerts for storms across Buenos Aires and multiple provinces, with separate advisories for Zonda winds in parts of the west.
• Heavy rain, small hail and street flooding were reported across the AMBA on Friday, including Villa Urquiza, Núñez, Luján, Moreno, La Plata, Tigre and Monte Grande.
• Forecasts call for the highest instability on Saturday afternoon and night with frequent lightning, gusts near 50–60 km/h, hail in spots and rainfall totals generally 20–60 mm, locally higher near 80 mm.
• Conditions are expected to improve for the AMBA on Sunday as storms shift toward the Litoral and northeast, with brisk southerly winds and a notable drop in temperatures.
• A post‑storm cold surge could bring minimums near 2–4°C in southwestern Buenos Aires Province locales such as Bahía Blanca, Tres Arroyos, Tandil, Olavarría and Azul, while authorities urge measures like clearing drains and avoiding outdoor exposure during storms.