Overview

• Argentina’s meteorological service kept orange alerts active for the Buenos Aires metro, northern Buenos Aires, Santa Fe and Entre Ríos as a deepening low delivered widespread downpours with disruption risk.
• In the Buenos Aires area 66 mm fell in the city, 67 mm in Merlo and 58 mm in Morón, while Rosario logged 63.5 mm in under 12 hours and Santa Fe measured around 59 mm at key sites with street flooding reported.
• Guidance indicates showers linger into Wednesday morning before a wind shift brings the strongest gusts of the event — near 70–74 km/h in some locales — and a progressive improvement later in the day and into Thursday.
• In Mexico, Conagua confirmed Hermosillo’s most intense rain of the season at 44.5 mm on Sunday, and Sonora’s civil protection issued urgent notices Tuesday for thunderstorms with dangerous gusts and lightning in the Sierra and north.
• Crop analysts say the rain broadly recharges soil moisture and boosts wheat, sunflower and early maize prospects, though already waterlogged sectors face anegamientos and potential delays to fieldwork.