Overview

• The Argentine SMN has issued yellow alerts through August 19 for storms and strong winds across the AMBA and neighboring provinces ahead of the forecasted cyclogenesis.
• Ensemble guidance from Meteored, ECMWF and GFS projects 50–100 mm of rain over 24–48 hours starting August 19, potentially doubling typical monthly totals and heightening flood risk.
• Forecasts warn of gusts reaching 45–60 km/h in lowlands with isolated bursts up to 140 km/h at higher altitudes, prompting advisories to secure loose objects and minimize outdoor activity.
• In northern Mexico, monsoon-driven downpours continue alongside extreme heat exceeding 45 °C in Baja California, while southern states have recorded up to 150 mm of rainfall on August 18.
• Spain’s AEMET anticipates cooling showers to aid firefighting in Asturias, contrasting with mostly clear and mild conditions across Galicia as of August 18.