SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
June 4, 2019

San Juan Basin Special Forecast Group

June final Forecasts

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


Rio Blanco  FORECAST                   OBSERVED
              90%     50%     10%        Apr   May
   Apr-Jul    66.0    71.0    77.0       10.7  18.7


Navajo-Chromo  FORECAST                OBSERVED
              90%     50%     10%        Apr   May 
   Apr-Jul    73.0    80.0    88.0       13.0  20.3


Little Navajo-Chromo  FORECAST         OBSERVED
              90%     50%     10%        Apr   May
   Apr-Jul     7.0     8.5     9.5        1.7  3.4
       Jun     1.6     3.0     3.5
       Jul     0.3     0.4     0.9
       Aug     0.5     0.3     0.1	

Vallecito Reservoir  FORECAST          OBSERVED
              90%     50%     10%        Apr   May
   Apr-Jul   260.0   275.0   310.0       32.4  58.5
       Jun   129.0   136.0   151.0
       Jul    40.0    48.0    68.0
       Aug    17.0    24.0    37.0


Navajo Reservoir  FORECAST             OBSERVED
              90%     50%     10%        Apr   May 
   Apr-Jul   950.0  1000.0  1110.0      230.3  270.2
       Jun   370.0   400.0   450.0
       Jul    79.0    99.0   159.0
       Aug    20.0    45.0    76.9 


Animas-Durango  FORECAST               OBSERVED
              90%     50%     10%        Apr   May 
   Apr-Jul   555.0   605.0   660.0       78.0  121.0
       Jun   260.0   285.0   305.0
       Jul    96.0   121.0   156.0
       Aug    36.0    45.0    75.0

Lemon Reservoir  FORECAST              OBSERVED
              90%     50%     10%        Apr   May
   Apr-Jul    64.0    70.0    78.0        5.8  12.1
       Jun    35.0    40.0    44.0
       Jul     7.0    12.0    16.0
       Aug     3.0     5.0     8.0