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

HEFS Trace Analysis


Please Note: This interface is intended for medium and long range time periods. For short range time periods, please refer to our Ensemble suite of products available from our front page map.


Step 1 Select a Location:  

Step 2 Select an Accumulation Type:  
Mean
Minimum
Maximum
Summation
Step 3 Select an Interval:  
Day
Week
Month
Entire Period

Step 4 Select a Distribution Type:  
Empirical                Wakeby

Step 5 Select a Starting Date:       Month:      Day:      Year: 

Please Note: For ALL locations, a date one day in the future is the earliest that can be used to build a product. (Example: If today is November 15th, 2013 then the start date must be either November 16th, 2013 or later)


Step 6 Select an Ending Date:      Month:      Day:      Year: 


Step 7 Select a Plot Option and Generate:  
Traces    Probability    Expected Value    Exceedance
 
Or Label Select a Table Option and Generate:  
Forecast Info    Quantiles    Flood Quantiles

Help Button Making Selections and Interpreting Results  (Click Help Button)

 Availability of Ensemble Data

Long Range Daily Ensemble CSV Files are available via the California Nevada River Forecast Center website. To access the comma separated value files for download, visit our Long Range Daily Ensemble CSV File Download webpage or via individual ensemble locations from our homepage map interface while viewing the "WY Accum Vol" plots.
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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

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