According to the latest NOAA report, Department of meteorology Coming from the United States, the La Niña which operates this spring will continue until the fall of 2022. The temperature of the Pacific Ocean is below normal for the time of year, characterizing a moderate La Niña phenomenon. . The news is that the cooling will continue beyond the summer, moving forward until next year. According to NOAA, there is a 50% chance that the phenomenon will continue in the fall.
The Canadian CanSIPS simulation shows a typical pattern of the phenomenon in Brazil, with above-average precipitation in the northern and northeastern regions and in the northern Southeastern and Midwestern regions between December 2021 and February 2022. D ‘ on the other hand, the southern region and the states of São Paulo and Mato Grosso do Sul will receive less rain than usual, with a risk of regionalized drought.
The temperature will remain near or below average in most parts of the country, whether due to the presence of more intense cold spells or persistent rains. Above normal heat will prevail only in the eastern part of the Northeast region and in Rio Grande do Sul.
La Niña and corn
Regarding the effects of La Niña in autumn and the impacts for the second corn harvest, meteorologist Celso Oliveira, of Climatempo, guarantees that the harvest will not be penalized as much as in the previous cycle. “The second harvest corn can be installed much earlier in 2022, because it will have more moisture,” he says.
Attention should be paid to the areas of Paraná and Mato Grosso do Sul, which will experience the decrease in rainfall between April and mid-May. There is a risk of early cold, although numerical weather and climate prediction models do not yet see it. “There is a risk of frost from the end of May, when the corn will still be developing in Mato Grosso do Sul and Paraná”, explains Oliveira.
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