Tropical Cyclone Likely in the Gulf of America Mid-to-late Week
10/05/2026, 9:24 am EDT
Climate Impact Company Week 2-4 Outlook
South America
Issued: Tuesday October 6, 2026
Highlight: Later this month, consolidation of wet weather in Southeast Brazil.
Charts of the day: Getting wetter, pattern and soil moisture.
Discussion: Anticipated wetter pattern for Argentina to Southeast Brazil is evolving. Wet weather is enhanced in Northwest Argentina, Southeast Brazil, and parts of east and south Argentina during the past week. Wetter soils are vividly indicated Argentina to Southeast Brazil.
Week-2 Ahead (October 18-25, 2026): Expansive wet weather East Brazil.
Discussion: Wet weather centered on Southeast Brazil expands and pushes dry weather to far northern Brazil. Northern Argentina shifts drier.
Week-3 Ahead (October 25-November 1, 2026): Southeast Brazil rains; Northern Brazil dryness.
Discussion: Wet weather consolidates in Southeast Brazil while Northern Brazil shifts drier/hotter.
Week-4 Ahead (November 1-8, 2026): Southeast Brazil rains.
Discussion: Trend toward consolidation of wet weather in Southeast Brazil continues. Also consistent is anomalous cool conditions in Argentina.