National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

NOAA / NWS News and Local CNRFC Information

NOAA's Climate Prediction Center Winter Outlook - NOAA's Climate Prediction Center has issued its US Winter Outlook for 2020-2021. Check out what is expected for the country this winter at the following NOAA Winter Outlook media release.

CNRFC Daily Briefing - View a graphical summary of current & forecast weather and hydrologic conditions. Updated by 10 AM PT.

2021 Tide Tables Available - The 2021 tide tables are now available on our river forecast page.

Alert MessageAll River Guidance (Flood Forecast) Points Are Currently and Forecast to Remain Below Critical StagesAlert Message

 
Recently-Issued CNRFC Text Products:  
 

 Home Page Version:   Interactive Map  |  LegacyDownload map as PNG image.  Toggle data table on/off.  Expand or shrink map.    Permalink      
Geographic
Overlays
   2020  2019  2018
 

Topography

Topography/USGS

ESRI Topography

Shaded Relief

Imagery

Nat'l Geographic

Topo/Rivers

Topo/Hydro

Light Gray
 
The number inside each circle above represents the number of gages with observed conditions inside that category.
The number inside each circle above represents the number of gages with forecast conditions inside that category.
The number inside each circle above/below represents the number of gages with conditions inside that category.
Forecast
(large dots)
The number inside each circle above represents the number of gages with observed conditions inside that category.
The number inside each circle above represents the number of gages with forecast conditions inside that category.
The number inside each circle above/below represents the number of gages with conditions inside that category.
Observed
(small dots)



Download Overlay Files


Rivers/Reservoirs

Deterministic Forecasts 

Data updated:
Ensemble Forecasts
Data updated:


Peak Exceedance Probabilities*
Data updated:
10%25%50%75%90%
5-Day Peak
10-Day Peak
*Exceedance probabilities are only available for selected forecast points.
Observed Data
Data updated:

Latest Hour 1 Hr Ago 2 Hrs Ago 3 Hrs Ago
Forecast Points
Other Points
Reservoirs
Deterministic Forecast + Observed Data
Fcst data updated:
Obs data updated:
Forecast Points 
Link to




Significant River Flood Outlook
Data updated:
Valid:

      National Significant River Flood Outlook

Water Resources

Data updated (unless otherwise noted):


 







Monthly Archive
Month/Year:     

Reservoir Storage
(Data to 1925 for all reservoirs/1951 for "major")
% Normal % Capacity

Snow Data

National Gridded Data



Select date:     To:
Point Data
Data updated:
SWE
SWE Change


Data updated:
Snow Depth
Snow Depth Change
Daily Archive (Data back to Apr 2014)
M/D/Y:     
    % Avg % Apr 1
Avg		 Value
Simulated
Basin
Avg		 Mid-Upper
Lower
Monthly Archive (Data back to Jan 1998)
Month/Year:     
  % Avg Value
Point*
* Jan-Jun only

Observed Precipitation (QPE)

Radar Data
 
 


Select radar time:  

Short-Range Point Data

Raw data updated:
QC data updated:   
Most Recent Hours (Raw):












6-Hour Totals (QC'd = Quality-Controlled)
Ending 18Z (10 AM PST) Ending 00Z (4 PM PST) Ending 06Z (10 PM PST) Ending 12Z (4 AM PST)
 
  
  
  
24-Hour Totals (QC'd = Quality-Controlled)


Short-Range Gridded Data
Images created:






     
Monthly/Water Year Archive (starts Oct 1996)
Month/Year:     
    % Avg Value Departure Normal
Point Monthly
   
WY
   
Grid Monthly
WY
Basin
Avg		 Monthly
     
WY
     
Forecast
Group		 WY
     


 From Water Year:   to: 

Forecast Precipitation (QPF)

CNRFC Forecast Data
Forecast issued:
 
 

Select forecast time:  


 

Select forecast time:  





     
WPC Forecast Data
Day 1 issued:
Day 2 issued:
Day 3 issued:
Days 1-3 issued:
Days 1-7 issued:
WPC 6-Hourly QPF
Select forecast time:  


WPC 24-Hourly QPF
Select forecast time:  


WPC 72-Hourly QPF

WPC 7-Day QPF

Observed Temperatures

Point Data
Data updated:
QC data updated:
Instantaneous Temperatures
Temp Change:
Max/Min Temperatures
24-Hour Max
Ending 12Z
(4 AM PST)		 24-Hour Min
Ending 12Z
(4 AM PST)		 Daytime
Max *		 Overnight
Min **
* Updated: 9 PM   **Updated: 9 AM  
Gridded Data
Images created:
 
 

Select obs time:  







Forecast Temperatures

Basin Temperature Plots
Images created:


Forecast Temperature Grids
Images created:




  







  




Freezing Levels

Observed Freezing Levels
Images created:
  

Select forecast time:  


Forecast Freezing Levels
Forecast issued:
  

Select forecast time:  


Flash Flood Guidance/Debris Flow

Flash Flood Guidance Grids
Images created:



Post-Wildfire Debris-Flow Basin Probability
Debris Flow Probability (peak 15-min rainfall intensity of 24 mm/hr)

More info: USGS post-wildfire debris-flow hazards

Water Temperatures

Data updated:






Climate/Drought

U.S. Drought Monitor

Select issuance date range:
From:     To:

Climate Prediction Center Outlooks
Drought Outlooks
Extended Range Outlooks
Precipitation
Temperatures
Long Lead Outlook
Precipitation
Temperatures

QPF Verification

24-Hour QPF Verification Grids
Images created:
Date: (ending 4am PST / 5am PDT) Select forecast to verify:
Day 1 forecast created Thu Feb 25, 2021


    QPE    
QPF

Watches/Warnings/Advisories

Last updated:
 

Mid-Atlantic RFCOhio RFCNortheast RFCNorth-Central RFCMissouri Basin RFCLower Mississippi RFCWest Gulf RFCArkansas-Red Basin RFCSoutheast RFCNorthwest RFCColorado Basin RFCCalifornia-Nevada RFCAlaska-Pacific RFCMap showing all 13 RFCs
Disclaimer

This image is currently not available. Please try again later.

The selected data is currently not available. Please check again later.

The "Download PNG" feature is not available in this browser. Please try a different browser.

Load a point data set to view data.

River Guidance Points Forecast Above Specified Stage Definitions  (Select NWS ID for Specified Graphical RVF)
NWS IDRiver / CreekGage / StationMonitor
Stage		Flood
Stage		Danger
Stage		Max Forecast
Stage		Max Forecast
Flow		Forecast
Status

*** NO River Guidance (Flood Forecast) Points Currently Forecast At Or Above Critical Stage Definitions ***

** NOTE **  Stage is presented in "Feet" while Flow is presented in "cfs".
River Guidance Forecast Group Issuance and Next Update Times  (Select Forecast Group for Specified Text RVF)
FG IDForecast GroupIssuance TimeNext Update Time
SENorth Coast[ Alternate Link ]Feb 25 2021 at 1:27 PM PSTFeb 26 2021 at 9:00 AM PST
RNRussian Napa[ Alternate Link ]Feb 25 2021 at 1:27 PM PSTFeb 26 2021 at 9:00 AM PST
USAUpper Sacramento[ Alternate Link ]Feb 25 2021 at 1:22 PM PSTFeb 26 2021 at 9:00 AM PST
LSCLower Sacramento[ Alternate Link ]Feb 25 2021 at 1:35 PM PSTFeb 26 2021 at 9:00 AM PST
SJSan Joaquin[ Alternate Link ]Feb 25 2021 at 1:41 PM PSTFeb 26 2021 at 9:00 AM PST
CCCentral Coast[ Alternate Link ]Feb 25 2021 at 1:29 PM PSTFeb 26 2021 at 9:00 AM PST
SCASouthern California[ Alternate Link ]Feb 25 2021 at 1:29 PM PSTFeb 26 2021 at 9:00 AM PST
ESEastern Sierra[ Alternate Link ]Feb 25 2021 at 1:30 PM PSTFeb 26 2021 at 9:00 AM PST
HBTHumboldt[ Alternate Link ]Feb 25 2021 at 1:30 PM PSTFeb 26 2021 at 9:00 AM PST
SAC Sacramento Delta (Tides) [ Alternate Link ]Feb 25 2021 at 6:19 AM PSTFeb 26 2021 at 9:00 AM PST
 
** NOTE 1 **  The Klamath and North Coast river guidance points are included in the North Coast Forecast Group.
** NOTE 2 **  The Feather Yuba and American river guidance points are included in the Lower Sacramento River Forecast Group.
** NOTE 3 **  The Delta Region, Upper and Lower San Joaquin river guidance points are combined in the San Joaquin River Forecast Group.
Follow us on Twitter  Follow us on Twitter
Follow us on Facebook  Follow us on Facebook
Follow us on YouTube  Follow us on YouTube
NWS RSS Feed  NWS RSS Feed
 
usa.gov

04




US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
California Nevada River Forecast Center
3310 El Camino Avenue, Room 227
Sacramento, CA 95821-6373
(916) 979-3056

Comments? Questions? Please Contact Us.

Disclaimer
Information Quality
Help
Glossary
Links
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities