SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
January 19, 2021

San Juan Basin Special Forecast Group

January mid-month Forecasts

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


Rio Blanco  FORECAST              
              90%     50%     10%    
   Apr-Jul    31.0    43.0    65.0     


Navajo-Chromo  FORECAST              
              90%     50%     10%    
   Apr-Jul    33.0    49.0    76.0     


Little Navajo-Chromo  FORECAST              
              90%     50%     10%    
   Apr-Jul     2.6     4.5     8.0     
       Jan    0.06    0.07    0.08
       Feb    0.05    0.06    0.10
       Mar    0.15    0.25    0.40


Vallecito Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul    72.0   110.0   175.0     
       Jan     2.4     2.5     2.6
       Feb     1.9     2.0     2.5
       Mar     2.5     3.0     5.0


Navajo Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul   275.0   450.0   740.0     
       Jan     9.0    10.0    12.0
       Feb    11.0    14.0    23.0
       Mar    24.0    37.0    60.0


Animas-Durango  FORECAST              
              90%     50%     10%    
   Apr-Jul   140.0   240.0   350.0     
       Jan     6.0     6.7     7.0
       Feb     6.0     6.5     8.0
       Mar     8.0    10.0    15.0


Lemon Reservoir  FORECAST              
              90%     50%     10%    
   Apr-Jul    17.7    31.0    51.0     
       Jan    0.20    0.35    0.40
       Feb    0.20    0.30    0.40
       Mar    0.40    0.70    1.40