1 jan 1930 ano - Shift in the Jet Stream

Descrição:

Weather patterns shifted over the Atlantic and Pacific oceans causing the Pacific to grow cooler than normal and the Atlantic warmer. The combination weakened and changed the direction of the jet stream. Normally, the jet stream carries moisture from the Gulf of Mexico up toward the Great Plains. It then dumps rain when it reaches the Rockies. This combination also creates tornadoes. When the jet stream shifted south, the rain never reached the Great Plains.

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