SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
June 16, 2022

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    29.0    31.0    34.0        9.6    16.2  


Navajo-Chromo  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    35.0    37.0    40.0        9.4    19.2  


Little Navajo-Chromo  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul     2.8     3.0     3.2        1.4     1.2  
       Jun     0.2     0.3     0.4
       Jul     0.0     0.1     0.2
       Aug     0.0     0.1     0.2


Vallecito Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    97.0   105.0   115.0       27.0    53.0  
       Jun    12.0    17.0    20.0
       Jul     5.0     8.0    15.0
       Aug     5.0     7.0    13.0


Navajo Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   305.0   310.0   335.0      123.0   167.0  
       Jun    15.0    20.0    35.0
       Jul     0.0     0.0    10.0
       Aug     0.0    14.0    30.0


Animas-Durango  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   189.0   210.0   230.0       35.0   112.0  
       Jun    32.0    46.0    57.0
       Jul    10.0    17.0    26.0
       Aug     9.0    13.0    26.0


Lemon Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    25.0    27.0    30.0        5.4    16.2  
       Jun     2.3     3.6     4.6
       Jul     1.1     1.8     3.8
       Aug     1.0     1.7     3.5