Why isn’t the West getting snow this winter? A classic La Niña winter pattern has shifted the jet stream north, keeping much of the Southwest under a warm ridge while the eastern U.S. sees a favored storm track. When a ridge builds in the West, air sinks. Sinking air means fewer clouds. Fewer clouds means fewer storms. Fewer storms means less snow. Meanwhile, the jet stream dips into the East, carving out a trough that supports colder, more active weather systems. Winter didn’t disappear. It shi
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Why isn’t the West getting snow this winter? A classic La Niña winter pattern has shifted the jet stream north, keeping much of the Southwest under a warm ridge while the eastern U.S. sees a favored storm track. When a ridge builds in the West, air sinks. Sinking air means fewer clouds. Fewer clouds means fewer storms. Fewer storms means less snow. Meanwhile, the jet stream dips into the East, carving out a trough that supports colder, more active weather systems. Winter didn’t disappear. It shi
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FacebookMeteorologist Joe Ruch CBS Colorado
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