National Weather Service United States Department of Commerce

 

Water Supply Verification

     

The following are water supply verification graphics that compare the forecasted April - September (seasonal) forecasted volumes to the observed volumes.  Seasonal runoff volumes are forecast each January, February, March, April, May and June. The verification graphics are displayed as a percentage and are calculated as the Forecasted Volume / Observed Volume. For example 125% would mean that the forecasted volume for that forecast would be 25% more than what occurred, and similarly 75% would  mean that the forecasted volume for that forecast would be 25% less than what occurred.

     

       

By State
Montana
January February March
April  May June
Montana Individual Plots
     
 

          

Wyoming
January February March
April  May June
Wyoming Individual Plots
     
 

                  

Colorado
January February March
April  May June
Colorado Individual Plots