Sonoma County Real-time Rainfall, River-Stream, and Reservoir Data

April 11th, 2018 by Selina Flores

A series of rain and stream flow gauges have been installed within and downstream of the areas burned by the devastating October wildfires, providing real-time data to weather forecasters who are responsible for sending out alerts to residents when flashfloods or debris flows may be imminent.

The real-time rainfall and streamflow data is also available to the public at

The data from the gauges is used by the National Weather Service (NWS) in developing their hazardous weather advisories, alerts and warnings.


More information about being prepared, including a map identifying post-fire hazard assessments, is available at

Residents are encouraged to be prepared at all times:

    • Keep your cell phone turned on at all times to receive Emergency Alerts and Warnings from the NWS. For information on NWS Advisories and Watches visit:
    • To be notified by Sonoma County first responders in the event of an emergency, sign up for Sonoma County Alerts at:
    • The Sonoma County Sheriff’s Department rebroadcasts NWS advisories, alerts and warnings. To receive alerts from the Sheriff’s Dept. and other public safety agencies visit:

In areas where there is limited cell service, or in the event of a power outage, you can receive Emergency Alerts from the NWS using NOAS All-Hazard Radios, which rely on batteries.

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