Overview
- Argentina’s meteorological service kept an orange alert in place for CABA/AMBA through Wednesday, with highs around 37–39°C and very warm overnight conditions near 27°C.
- Yellow heat advisories extend across the central belt, including Buenos Aires province, Córdoba, Santa Fe, Entre Ríos, La Pampa, San Luis, Mendoza, Neuquén, Río Negro and Santiago del Estero, with Córdoba near 38°C and Rosario forecast up to 40°C.
- Separate yellow alerts cover storms in parts of Jujuy, Misiones, San Juan, San Luis and Mendoza, and strong winds in southern Santa Cruz and Tierra del Fuego where gusts could exceed 100 km/h.
- SMN guidance highlights hydration, avoiding peak sun and special care for children, older adults and people with chronic conditions during the peak heat.
- Forecasters anticipate a frontal passage around New Year’s Eve bringing an 8–10°C drop in the AMBA, with highs easing to roughly 28–31°C on Thursday and into the weekend; Patagonia remains much cooler and coastal Mar del Plata recently reached 37.9°C.