Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Red Flag Warning This Afternoon and Evening in Northwest Colorado and Northeast Utah

A trough will pass through the Northern Rockies this afternoon and tonight causing northwest winds to increase today over northwest Colorado and northeast Utah. These winds will combine with already hot and dry conditions, as well as very dry fuels, to produce critical fire weather over much of northern Colorado and Utah. A Red Flag Warning is in effect from Noon until 8 PM MDT today.

Red Flag Warning Noon to 8 PM MDT Today

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Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

Critical Fire Weather Conditions This Afternoon And Evening Over Northwest Colorado And Northeast Utah