SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
June 03, 2020

San Juan Basin Special Forecast Group

June final Forecasts

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


Rio Blanco  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    28.0    31.0    35.0        6.2    15.9  


Navajo-Chromo  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    30.0    33.0    39.0        6.3    16.7  


Little Navajo-Chromo  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul     2.5     2.9     3.1        0.7     1.6  
       Jun     0.1     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   114.0   130.0   150.0       15.9    66.0  
       Jun    23.0    35.0    46.0
       Jul     9.0    13.0    22.0
       Aug     8.0    12.0    20.0


Navajo Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   320.0   365.0   410.0       80.0   199.0  
       Jun    40.0    77.0    98.0
       Jul     1.0     9.0    33.0
       Aug     4.0    16.0    38.0


Animas-Durango  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   230.0   260.0   305.0       27.0   120.0  
       Jun    62.0    84.0   108.0
       Jul    21.0    29.0    50.0
       Aug    16.0    21.0    38.0


Lemon Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    29.0    34.0    39.0        2.6    18.9  
       Jun     5.8    10.0    12.0
       Jul     1.7     2.5     5.5
       Aug     1.4     2.5     5.0