General 1-3+ inches of rainfall in the Argentina cornbelt since Friday has helped moisten soils, with closer to .5 inches of rain in southern Cordoba. Today, rain affected northern Cordoba, far southern Santiago del Estero, northern/central Santa Fe, southern Corrientes, and much of Entre Rios. Totals were mainly under .25 inches, but some spots in northern Entre Rios to southern Corrientes and near the Santa Fe/Cordoba/Santiago del Estero border exceeded .75 inches. The spots with heavier totals were confined to these areas, so other areas didn't see much soil moisture replenishment. Argentina's highs cooled today to the 70's to low 80's under areas of rainfall, with 80's south of the rainfall, and 90's mainly north of the cornbelt. In Brazil, the drier soils in southern Rio Grande do Sul received anywhere from .1 to over 1 inch of rainfall. Scattered rainfall affected Goias, southern Mato Grosso, and southern Minas Gerais, with totals mainly under 1 inch. Other areas received spotty, light showers.
Rain will stay mainly north of the Argentina cornbelt Tuesday and Wednesday, with light rain chances in the cornbelt Thursday, heavier rain Friday and north on Saturday. Rainfall totals will be 1-2+ inches, except lower amounts in southern/central Buenos Aires, southern Cordoba, and La Pampa. Soils that receive the heavier rainfall will continue to have reduced stress. Highs will warm in particularly the northern Argentina cornbelt late this week. The best chances of heavier rain in southern Rio Grande do Sul are tonight through Tuesday, and late Friday to Saturday, with chances of lighter rain in between. Totals will mainly reach 1-2+ inches, helping stressed soils. There will be scattered showers in northern Brazil, with the best coverage in southern Minas Gerais, southern Goias, and southern/western Mato Grosso through Thursday and in many areas Friday and Saturday. Central/southeastern Brazil will see multiple rainfall chances. Brazil rainfall will be mainly over 1 inch, with less in northern Minas Gerais, northern Goias, and northeastern Mato Grosso.
For the 6-10 day outlook, the wetter pattern will persist in Argentina, with southern areas drier and more prone to stress. Rainfall will be scattered and not continuous. There is model disagreement on Argentina heat potential, with northern areas getting the hottest. It will stay wet in much of Brazil.
For the 11-15 day outlook, extreme heat is unlikely in Argentina. Argentina will have rain chances throughout the cornbelt, continuing this more favorable rainfall pattern. Brazil will see more wet conditions.
Check farther down this page below the morning audio and above the comments for a 4 panel image of predicted South American precipitation.
In the 10 day forecast box just below the 4 panel US precipitation forecast images, type your zipcode in the 'Zip Code' box for your local weather.
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