Overview
- Spanish authorities raised red-level alerts on Tuesday and Meteocat placed parts of Lleida under yellow warnings while the Guardia Civil carried out a preventive evacuation of about 3,000 people in Ávila because of sediment-collapse risk.
- AEMET-driven local forecasts show near‑certain rain across Galicia today with sustained storms and strong gusts expected to produce flooding, high seas and wind damage in exposed coastal and mountainous areas.
- Forecasts from FOX Weather and other models predict a Canadian cold-air surge could help spawn a low between the Great Lakes and the Ohio/Tennessee valleys that may bring rain, coastal gales and inland snow to the eastern U.S. from Thursday through Saturday, though track and intensity remain uncertain.
- In Argentina, convective systems moving from Mendoza, San Luis and Córdoba are advancing toward Buenos Aires and the southern Litoral, prompting meteorological monitoring of mass events in Córdoba and Luján while the Servicio Meteorológico Nacional reports instability and mountain snow in Mendoza.
- Officials stress forecast uncertainty because small shifts in the low’s track will change which areas see heavy coastal winds versus inland snow; explosive cyclogenesis—a rapid deepening of a low that brings intense winds, heavy precipitation and storm surge—is the process forecasters say is driving Spain’s current high risk.