National Water Resources
NOAA/NWS National Water Resources Outlook - National Water Resources
Predictions of water across the United States are important to making decision on water management, recreation, and natural hazards. The tool set provided in this suite of applications provides access to National Weather Service predictions and historical data to assist in making these important decisions. Tools include a map interface that allows a big picture perspective of water in the western United Stated, forecast analysis tools that allow users to download and/or interact with current and recent forecasts, as well as forecast verification tools to assess the long term skill of forecasts both qualitatively and quantitatively. These tools are a product of the National Weather Service.
NOAA/NWS River Forecast Centers model output is available on the interface. The most recent forecast for that month is plotted.
Monthly Water Supply Outlook (California, Northern Nevada, and Upper Klamath Basins)
*** Note: This publication has been discontinued beginning 2013 ***
Current Monthly Water Supply Outlook Issuance
June 2012 Monthly Water Supply Outlook (text version) - Issued June 05, 2012
May 2012 Monthly Water Supply Outook (Full Version - Adobe® PDF) - Issued: May 06, 2012
Product Information:
- Issued January through May (special June issuances in certain cases) by the California Nevada River Forecast Center (CNRFC).
- Coordinated effort between the National Weather Service, California Department of Water Resources, the National Resource Conservation Service, the US Bureau of Reclamation, and local water district managers.
- All forecast volumes reflect natural flow. Actual observed flow may be affected by upstream water management.
- All Monthly Water Supply Outlooks and Verification products are publised in .pdf format (requires Adobe® Acrobat Reader).
- An abbreviated text version that contains forecasts only is also available.
Historical Archive - Monthly Water Supply Outlooks and Annual Verificiation
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Annual
Verification
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1996 |
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1997 |
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1998 |
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1999 |
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2000 |
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2001 |
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2002 |
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2003 |
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2004 |
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2005 |
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2006 |
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2007 |
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2008 |
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2009 |
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2010 |
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2011 |
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Jun** |
2011 |
2012 |
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* Special June update for upper Klamath Basin and Eastern Sierra Nevada
** Special June update for all basins
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 11:00 AM PST
10-Day Streamflow Volume Accumulation - Issued: Daily at 11:00 AM PST
20-Day Snowmelt Guidance - Issued: Daily at 11:00 AM PST
ESP April-July Forecasts - Issued: Daily at 11:00 AM PST
ESP Water Year Forecasts - Issued: Daily at 11:00 AM PST
ESP April-July Tracker - Issued: Daily at 11:00 AM PST
Upper Sacramento ESP Streamflow Volumes - Issued: Daily at 11:00 AM PST
San Joaquin ESP Streamflow Volumes - Issued: Daily at 11:00 AM PST
East Side Sierra ESP Streamflow Volumes - Issued: Daily at 11:00 AM PST
Humboldt ESP Streamflow Volumes - Issued: Daily at 11:00 AM PST
Temperature Forecasts - (Issued Daily)
California Nevada River Forecast Center (CNRFC)
10-Day Maximum/Minimum Temperature Forecasts - Issued: Daily at 5:00 AM PST
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.
California Statewide Water Conditions (California Dept. of Water Resources)
Statewide Water Conditions is now available on the CDEC website and contains
a series of links to html, text, and pdf format reports.
Water Supply Outlook - Western United States
The web page Water Supply Outlook for the Western United States hosted by the CBRFC presents a broader
picture of water supply outlook conditions for the western United States, including:
- graphical and tabular streamflow forecasts
- monthly and seasonal precipitation
- mountain snowpack and satellite areal extent of snow cover
- reservoir storage
It is issued jointly by the National Weather Service and the USDA Natural Resources Conservation Service.
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