La Niña is about to take the Southwest drought from bad to worse
Though summer rainfall brought some relief to the Southwest, the unrelenting drought there is about to get worse with La Niña on the horizon, according to David DeWitt, director at the National Oceanic and Atmospheric Administration’s Climate Prediction Center. … La Niña is a natural phenomenon marked by cooler-than-average sea surface temperatures across the central and eastern Pacific Ocean near the equator, which causes shifts in weather across the globe. In the Southwest, La Niña typically causes the jet stream — upper-level winds that carry storms around the globe — to shift northward. That means less rainfall for a region that desperately needs it.
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