Event Brief
El Niño forecast boosts West rainfall through mid-Sept
By The BriefBrief · Sources (1)
Filed: Sep 01, 2026 at 10:00 PM ET
Summary: NOAA’s Climate Prediction Center forecasts above-average rainfall across much of the Western U.S. from Sept. 7 to Sept. 15 as El Niño strengthens. The outlook includes the Southwest and Southern California, where residents are preparing for wetter-than-normal conditions through mid-September.
WHO: NOAA Climate Prediction Center
WHAT: Forecast of above-average rainfall for the Western U.S., including the Southwest and Southern California, during Sept. 7–15 as El Niño develops.
WHEN: Sep 02, 2026
WHERE: Southern California
WHY: The forecast is tied to El Niño “kicking into gear,” with NOAA expecting above-average rainfall as it strengthens.
ℹ️ This event is analyzed using pattern arcs, velocity indicators, and source analysis in our MI Console.
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