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California Nevada River Forecast Center
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Water Resources

Daily Water Resources Update Interface

Water Resources Update

Daily Water Resources Update


CNRFC Seasonal Water Supply Volume Forecast - Google™ Maps Interface

A summary of over 50 water supply forecast stations located throughout southern Oregon, California, and Nevada displayed on a Google™ Maps Interface. Data is updated daily at 12:00 UTC between January 1 and June 30 with the most recent forecast available for the current water year. Also, KML files are available for download and use in Google™ Earth.

Seasonal Water Supply Forecast - Google™ Maps Interface


Legacy Water Supply Page

A collection of water supply-related links, including links to the legacy monthly water supply outlook publications issued by the CNRFC from 1996 through 2012.

Legacy Water Supply Page


Seasonal Runoff Forecasts

California Nevada River Forecast Center (CNRFC)

Peak 1-Day Streamflow Volume Observed (Since Apr 1) and Forecast (Until Jul 31) - Issued: Daily at 2:00 PM PDT
10-Day Streamflow Volume Accumulation - Issued: Daily at 2:00 PM PDT
20-Day Snowmelt Guidance - Issued: Daily at 2:00 PM PDT
ESP April-July Forecasts - Issued: Daily at 2:00 PM PDT
ESP Water Year Forecasts - Issued: Daily at 2:00 PM PDT
ESP April-July Tracker - Issued: Daily at 2:00 PM PDT
ESP October-September Tracker - Issued: Daily at 2:00 PM PDT
North Coast ESP Streamflow Volumes - Issued: Daily at 2:00 PM PDT
Upper Sacramento ESP Streamflow Volumes - Issued: Daily at 2:00 PM PDT
Lower Sacramento ESP Streamflow Volumes - Issued: Daily at 2:00 PM PDT
San Joaquin ESP Streamflow Volumes - Issued: Daily at 2:00 PM PDT
East Side Sierra ESP Streamflow Volumes - Issued: Daily at 2:00 PM PDT
Humboldt ESP Streamflow Volumes - Issued: Daily at 2:00 PM PDT


Temperature Forecasts - (Issued Daily)

California Nevada River Forecast Center (CNRFC)

10-Day Maximum/Minimum Temperature Forecasts - Issued: Daily at 6:00 AM PDT

Product Information:

  • Issued daily year-round.
  • Combination of latest NWS forecasts and Model Output Statistics (MOS) guidance from the NWS GFS model.
  • Used as an important input into the runoff models.
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