Overview
- Major international forecasting centers and a multi‑model consensus now project a very strong El Niño with peak Pacific warming toward December 2026 and sustained strong conditions into early 2027.
- Senamhi reported exceptional early rains on Peru’s northern coast and said Monday that accumulations could triple between December and February with daily peaks near 80 millimeters.
- Peruvian agencies ENFEN and Senamhi have upgraded monitoring and added radar and river‑gauge inputs to support early warnings and emergency planning for coastal overflows and quebradas.
- Argentina’s federal emergency agency has issued public preparedness protocols for heavy rains and flooding and identified the Litoral and the Paraná, Uruguay and Salado basins as areas with elevated overflow risk.
- Officials and experts warn this El Niño could damage roads, bridges and crops, increase water‑borne disease risk, and persist into early 2027 with a possible extension of coastal impacts into April–May 2027.