Overview

• A broad storm front this week delivered more than 100 mm in many localities — including Los Toldos 148 mm, Chivilcoy 123 mm, Bragado and Comodoro Py 120 mm — spanning from the NEA to the Buenos Aires southeast, according to BCBA data and local gauges.
• Soil water reserves improved for wheat and early maize in much of the region, yet GEA warns that excess humidity elevates disease pressure in winter cereals, requiring intensified field protection in the near term.
• Rural leaders report annual totals of roughly 900 to 1,500 mm in parts of west and center‑west Buenos Aires, with flooded roads, blocked access and dairy disruptions prompting requests for provincial and national road machinery.
• Producers in heavily affected parties expect coarse‑grain planting to be delayed, with some estimating maize, sunflower and soybean sowing may not start until November, which would shorten cycles and trim yields.
• BCBA notes sunflower planting reached 15.8% nationally with strong northern progress, wheat moisture improved for refertilization, barley sowing finished, and maize harvest is 95.9% complete with a 49 Mt outlook, while technicians say several dry days — potentially a week — are needed and a cold front could still bring new showers.