Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

2025 Spring Flood Outlook

(click the image above for details)

What is the Spring Flood Outlook?

The spring season is typically the season with the highest risk for river flooding. Thus, the National Weather Service determines flood risk across the country and provides the Spring Flood and Water Resources Outlook at this time every year. This outlook contains information about the potential for flooding throughout the spring months. The information can help decision makers and those with river interests prepare, in order to protect life and property.

Release Schedule

Thursday, March 13, 2025 (click for the latest update)

Additional Information:

River Level and Forecast Information
Flood Safety
Turn Around Don't Drown

Note that the outlooks provided by NWS Omaha address only the NWS Omaha service area of eastern Nebraska and southwest Iowa. For outlooks covering the rest of Nebraska and Iowa, refer to the following NWS offices:

Western Nebraska: NWS North Platte, NE -- https://www.weather.gov/lbf/
Central Nebraska: NWS Hastings, NE -- https://www.weather.gov/gid
Northwest Iowa/Northeast Nebraska: https://www.weather.gov/fsd
Central Iowa: NWS Des Moines, IA -- https://www.weather.gov/dmx/

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Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

NWS Omaha Spring Flood Outlook

2025 Spring Flood Outlook