SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
July 3, 2023

San Juan Basin Special Forecast Group

July Final Forecasts

Seasonal and Monthly forecasts
Forecast volumes in thousands of acre-feet (KAF)


Vallecito Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May   Jun
   Apr-Jul   255.0   257.0   265.0       36.0   119.0  75.0
       Jul    25.0    27.0    35.0
       Aug    10.0    14.0    25.0
       Sep     8.0    12.0    27.0 

Navajo Reservoir  FORECAST                   OBSERVED 
              90%     50%     10%        Apr     May   Jun
   Apr-Jul  1025.0  1035.0  1060.0      245.0   488.0  249.0
       Jul    43.0    53.0    78.0
       Aug     4.0    25.0    62.0
       Sep     7.0    25.0    79.0 

Animas-Durango  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May   Jun
   Apr-Jul   535.0   545.0   565.0       61.0   218.0 179.0      
       Jul    77.0    87.0   107.0
       Aug    29.0    36.0    57.0
       Sep    19.0    29.0    49.0

Lemon Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May   Jun
   Apr-Jul    68.0    69.0    71.0        7.4    32.0  23.0
       Jul     5.6     6.6     8.6
       Aug     2.2     3.6     6.5
       Sep     1.5     3.0     8.0