SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
May 04, 2020

San Juan Basin Special Forecast Group

May Final Forecasts

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


Rio Blanco  FORECAST                   OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul    24.0    31.0    40.0        6.2  


Navajo-Chromo  FORECAST               OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul    25.0    33.0    44.0        6.3  


Little Navajo-Chromo  FORECAST        OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul     2.5     3.7     4.7        0.7  
       May     1.4     2.3     2.9
       Jun     0.3     0.5     0.8
       Jul     0.1     0.2     0.3

Vallecito Reservoir  FORECAST         OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul   101.0   126.0   158.0       15.9  
       May    43.0    55.0    63.0
       Jun    31.0    40.0    56.0
       Jul    11.0    15.0    23.0


Navajo Reservoir  FORECAST            OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul   270.0   365.0   475.0       80.0  
       May   150.0   195.0   235.0
       Jun    38.0    78.0   130.0
       Jul     2.0    12.0    30.0


Animas-Durango  FORECAST              OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul   197.0   260.0   340.0       27.0  
       May    80.0   110.0   130.0
       Jun    68.0    90.0   120.0
       Jul    22.0    33.0    63.0


Lemon Reservoir  FORECAST             OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul    25.0    34.0    44.0        2.6  
       May    12.0    16.0    20.0
       Jun     8.0    12.0    16.0
       Jul     2.4     3.0     5.4