SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
March 20, 2023

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    55.0    68.0    82.0     


Navajo-Chromo  FORECAST              
              90%     50%     10%    
   Apr-Jul    70.0    85.0   110.0     


Little Navajo-Chromo  FORECAST              
              90%     50%     10%    
   Apr-Jul     6.0     8.0    10.0     
       Mar    0.10     0.15   0.30
       Apr     1.1     1.6     1.9
       May     3.3     4.0     4.4


Vallecito Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul   210.0   255.0   300.0     
       Mar     4.8     5.3     3.7
       Apr    12.0    20.0    30.0
       May    83.0   100.0   110.0


Navajo Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul   750.0   960.0  1200.0     
       Mar    60.0    62.0    80.0
       Apr   150.0   180.0   225.0
       May   340.0   390.0   435.0


Animas-Durango  FORECAST              
              90%     50%     10%    
   Apr-Jul   500.0   610.0   705.0     
       Mar    10.0    11.0    15.0
       Apr    48.0    55.0    80.0
       May   185.0   225.0   260.0


Lemon Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul    67.0    80.0   100.0     
       Mar     0.8     0.9     1.3
       Apr     3.0     5.0    10.0
       May    26.0    29.0    32.0