North Atlantic Basin 2026 Tropical Cyclone Season Outlook UPDATE: Seasonal Activity Lowers; U.S. Coastal Risk Increases
06/02/2026, 7:42 am EDT
Marine Heatwave Inspires Europe Hot/Dry High Pressure Ridge Later June; MJO/SOI Inspired El Nino Climate Onset; Brazil Freeze Days 11-15?
06/04/2026, 5:48 am EDT
Climate Impact Company Week 2-to-4 South America Outlook
Issued: Wednesday June 3, 2026
Headline: Cold weather threat mid-June.
Charts of the day: Important cold spike June 15-16?
Discussion: The mega-cluster ensemble combining ECM, CFS, and CMC output indicates risk of significant cold not far from Brazil coffee-growing areas on June 15-16.
Week-2 Valid June 14-21, 2026: Cold weather threat into Brail.
Discussion: Deep trough off the Southeast Brazil Coast delivers a sharp cold front into Brazil causing risk of a freeze in the southern coffee growing areas. The frontal system causes wet weather for Central and Interior Southeast Brazil.
Week-3 Valid June 21-28, 2026: Moderating temperature.
Discussion: The upper trough shifts eastward allowing some warming in Brazil.
Week-4 Valid June 28-July 5, 2026: Another upper trough approaching.
Discussion: Another upper trough is approaching the West Coast. Marginally warm weather ahead of the trough with showers persisting across Paraguay.