SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
June 14, 2023

San Juan Basin Special Forecast Group

June mid-month Forecasts

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


Vallecito Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   255.0   265.0   280.0       36.0   119.0  
       Jun    76.0    82.0    88.0
       Jul    24.0    28.0    37.0
       Aug    10.0    14.0    25.0


Navajo Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   975.0  1010.0  1080.0      245.0   488.0  
       Jun   208.0   237.0   262.0
       Jul    34.0    40.0    85.0
       Aug     2.0    21.0    60.0


Animas-Durango  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul   540.0   560.0   605.0       61.0   218.0  
       Jun   185.0   195.0   216.0
       Jul    76.0    86.0   110.0
       Aug    25.0    35.0    55.0


Lemon Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr     May 
   Apr-Jul    69.0    73.0    81.0        7.4    32.0  
       Jun    24.0    26.0    30.0
       Jul     5.6     7.6    11.6
       Aug     2.2     4.0     6.5