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

San Juan Basin Special Forecast Group

March mid-month Forecasts

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


Rio Blanco  FORECAST              
              90%     50%     10%    
   Apr-Jul    30.0    41.0    55.0     


Navajo-Chromo  FORECAST              
              90%     50%     10%    
   Apr-Jul    33.0    47.0    62.0     


Little Navajo-Chromo  FORECAST              
              90%     50%     10%    
   Apr-Jul     2.4     4.3     6.3     
       Mar     0.2    0.25     0.3
       Apr     0.5     0.8     1.0
       May     1.5     2.5     3.2


Vallecito Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul    60.0   105.0   160.0     
       Mar     3.2     3.7     4.5
       Apr     6.0    10.0    14.0
       May    21.0    35.0    50.0


Navajo Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul   245.0   395.0   605.0     
       Mar    23.0    27.0    35.0
       Apr    52.0    70.0   100.0
       May   101.0   150.0   205.0


Animas-Durango  FORECAST              
              90%     50%     10%    
   Apr-Jul   125.0   220.0   315.0     
       Mar     7.5     8.0    11.0
       Apr    17.0    23.0    27.0
       May    43.0    75.0    85.0


Lemon Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul    13.0    27.0    42.0     
       Mar     0.5     0.6     0.9
       Apr     1.3     2.0     3.5
       May     5.7    10.0    13.0