SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
April 16, 2021

San Juan Basin Special Forecast Group

April mid-month Forecasts

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


Rio Blanco  FORECAST              
              90%     50%     10%    
   Apr-Jul    32.0    41.0    50.0     


Navajo-Chromo  FORECAST              
              90%     50%     10%    
   Apr-Jul    35.0    45.0    57.0     


Little Navajo-Chromo  FORECAST              
              90%     50%     10%    
   Apr-Jul     2.9     4.0     5.6     
       Apr     0.9     1.1     1.3
       May     1.6     2.1     3.0
       Jun     0.3     0.6     1.0


Vallecito Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul    66.0    92.0   138.0     
       Apr    11.5    12.5    15.0
       May    23.0    31.0    40.0
       Jun    23.0    35.0    55.0


Navajo Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul   270.0   370.0   550.0     
       Apr    88.0    90.0   115.0
       May    95.0   145.0   185.0
       Jun    65.0   105.0   190.0


Animas-Durango  FORECAST              
              90%     50%     10%    
   Apr-Jul   125.0   185.0   275.0     
       Apr    18.0    20.0    25.0
       May    42.0    62.0    73.0
       Jun    47.0    75.0   112.0


Lemon Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul    14.0    22.0    34.0     
       Apr     2.0     2.5     3.0
       May     5.0     8.0    10.0
       Jun     5.0     8.5    15.0