Based On 30-Day/7-Day Rainfall Observations, Least Wet CMC ENS Preferred Forecasting Argentina/Brazil Rainfall
02/12/2026, 9:29 am EST
Widening/Intensifying Australia Rainfall
02/17/2026, 8:36 am EST
Climate Impact Company Week 2-to-4 South America Outlook
Issued: Monday February 16, 2026
Headline: Heavy rain weekend and next week East Brazil.
Charts of the day: 7-day percent of normal rainfall observations.
Discussion: The 7-day percent of normal rainfall observations identify the expected eastward shift of patchy rainfall across parts of Argentina and Brazil.
Week-2 Valid March 1-8, 2026: East Brazil is very wet.
Discussion: Upper trough spawns heavy rain in East Brazil. The forecast shifts much wetter.
Week-3 Valid March 8-15, 2026: Drier Brazil.
Discussion: Upper-level features are weak and potentially changeable yielding below average forecast confidence.
Week-4 Valid March 15-22, 2026: Southeast Brazil rain risk.
Discussion: Northern Argentina and Central-to-Northeast Brazil are drier than normal.