SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
June 16, 2020

San Juan Basin Special Forecast Group

June mid-month Forecasts

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


Rio Blanco  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    30.0    31.0    33.0        6.2    15.9  


Navajo-Chromo  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    32.0    33.0    34.0        6.3    16.7  


Little Navajo-Chromo  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul     2.7     2.9     3.1        0.7     1.6  
       Jun     0.3     0.4     0.5
       Jul     0.1     0.2     0.3
       Aug     0.1     0.2     0.3


Vallecito Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   132.0   135.0   146.0       15.9    66.0  
       Jun    38.0    40.0    42.0
       Jul    12.0    13.0    22.0
       Aug     8.0    12.0    21.0


Navajo Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   350.0   365.0   380.0       80.0   199.0  
       Jun    70.0    77.0    80.0
       Jul     1.0     9.0    21.0
       Aug     4.0    16.0    38.0


Animas-Durango  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   260.0   270.0   285.0       27.0   120.0  
       Jun    88.0    93.0   106.0
       Jul    25.0    30.0    32.0
       Aug    16.0    21.0    36.0


Lemon Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    31.0    32.0    34.0        2.6    18.9  
       Jun     7.5     8.0     8.5
       Jul     2.0     2.5     4.0
       Aug     1.4     2.5     5.0