Weather extremes in South America are hitting the country in the same way last summer’s drought conditions affected south western Canada and the US Pacific northwest, World Grain wrote.
Both South America and North America can trace some of these weather extremes back to major solar cycles that coincide with La Niña and the Pacific Decadal Oscillation, among other known weather patterns that can create extreme conditions, according to the 25 January report.
The pattern would continue in North America this spring and summer, World Grain wrote, and some of the recent extremes seen in South America could indicate future weather events in central USA.
Recent extreme weather patterns are the same 22-year solar cycle that brought on extreme North American droughts during the 1930 and 1950s, as well as less extreme droughts of the early 2000s, the mid-1970s and in 1912-1914, according to the report.
The same extremes had been seen in South America, and the latest drought and extreme heat in Argentina, Paraguay and southwestern Brazil could be directly associated with La Niña in the current 22-year solar cycle, World Grain wrote.
Looking ahead, the weather in the USA could become as extreme as in South America with flooding in the eastern Midwest and severe drought in the Plains and western Corn Belt, the report said, which would be similar to Brazil’s recent excessive rain and Argentina’s drought.
