Yet Another Atmospheric River in the Southwest; Snow and Blowing snow in the Upper Midwest

Heavy rain combined with rising snow levels and saturated soils may produce flooding and flash floods, including across Los Angeles and San Diego. Locally heavy rain may cause flooding into central California and central Arizona. Heavy snow will extend from California to the Rockies. A winter storm will produce hazardous travel in the Upper Midwest. Read More >

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El Nino - Southern Oscillation Information Page

Tropical Pacific Sea Surface Temperatures	Tropical Pacific Sea Surface Temperature Anomalies

Tropical Pacific sea surface temperatures (left image) and associated anomalies (right image). Click images to enlarge. Images courtesy of the Climate Prediction Center.