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Weak La Niña Forecasted to Impact U.S. Weather Patterns This Winter

NOAA predicts drier conditions in the Southwest and wetter weather in the Pacific Northwest amid uncertainty for California.

  • The National Oceanic and Atmospheric Administration (NOAA) forecasts a 60% chance of a weak La Niña developing by November, increasing to 75% by January.
  • La Niña is expected to bring drier-than-average conditions to the southern U.S., including the Southwest and parts of Mexico, while the Pacific Northwest and northern U.S. may experience wetter conditions.
  • NOAA warns of expanding drought conditions in the central Rocky Mountains and the Colorado River Basin, a crucial water source for Southern California.
  • California faces uncertain precipitation patterns, with equal chances of below-average, average, or above-average winter rains, complicating drought predictions.
  • The influence of La Niña varies globally, with potential for increased rainfall in parts of South America and drier conditions in the southeastern U.S.
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