Emergency Alerts

Rain and Streamflow Gages

We encourage community members to sign up for emergency alerts from these alert systems. 

For San Mateo County sign up at SMCALERT

For Santa Clara County sign up at AlertSCC  

Web page last updated on September 26, 2023

Update 1/3/2024 - 10:30 A.M.

The SFCJPA is aware that the rain gages are not displaying updated rainfall data on the Contrail website. The gages are functioning, and data can be viewed on Valley Water's website at: https://alert.valleywater.org/?p=map

We are working to correct this display issue.

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Using rainfall gages in the upper watershed and creek flow gages far upstream of the urbanized floodplain areas, the SFCJPA collects real time rainfall and streamflow data from the upper watershed that informs local first responders.

For data visualization of real-time rainfall and creek conditions, please visit the City of Palo Alto’s website at: Creek Monitor & Camera – City of Palo Alto, CA

For Information on data from stream gages in the upper watershed west of Highway 280 and tide gages in the Bay, as well as hydraulic models and experience with previous storm events, access that detailed information by clicking the blue button above or this link https://contrail.onerain.com/?status=300&c>contrail.onerain.com, and inputting the following into the appropriate fields:

username: viewer
password: SanFrancisquito

Current and Predicted Weather and Stream Flows

The National Oceanic and Atmospheric Administration (NOAA) California and Nevada River Monitoring System has a page for the San Francisquito Creek.

This page documents past, and projects future flow conditions based on NOAA’s rainfall gauges and models.

You can see that here:

CNRFC - Hydrology - River Guidance - Graphical RVF - SFCC1 (noaa.gov)