Continuing a pattern of severe weather warnings this summer, Argentina's National Meteorological Service (SMN) issued red and orange alerts for extreme temperatures on February 18, 2026, affecting northern regions including Chaco (with a red alert in Resistencia), Corrientes (red alert in the city), and Formosa (orange). Orange storm alerts cover Santiago del Estero, while yellow storm alerts apply to Misiones and parts of Corrientes.
On February 18, 2026, the SMN escalated warnings for northern Argentina amid ongoing summer hazards seen in prior alerts, such as those on January 1. Red alerts for extreme temperatures signal severe daytime conditions in Resistencia (Chaco) and Corrientes city, urging high caution for health risks. Orange alerts for heat extend to broader Chaco areas and Formosa.
Storm risks prompted an orange alert for Santiago del Estero and yellow alerts for Misiones and Corrientes, forecasting intense conditions. Alerts were published between February 18-19, per TN reports. Residents should monitor updates and follow SMN precautions, as with earlier warnings.