SLCESPCO
National Weather Service
Colorado Basin River Forecast Center
Salt Lake City, Utah
May 19, 2015

San Juan Basin Special Forecast Group

May mid-month 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 
   Apr-Jul    19.0    29.0    33.0        5.2  


Navajo-Chromo  FORECAST                   OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul    19.0    30.0    36.0        5.6  


Little Navajo-Chromo  FORECAST                   OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul     2.1     2.7     3.6        0.7  
       May     1.2     1.5     2.1
       Jun     0.2     0.4     0.6
       Jul     0.0     0.1     0.2


Vallecito Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul    77.0   118.0   136.0       18.5  
       May    21.0    40.0    26.0
       Jun    29.0    45.0    65.0
       Jul     8.0    14.0    26.0


Navajo Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul   230.0   305.0   405.0       80.0  
       May   100.0   130.0   165.0
       Jun    46.0    80.0   120.0
       Jul     4.0    15.0    40.0


Animas-Durango  FORECAST                   OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul   210.0   275.0   360.0       34.0  
       May    81.0    91.0   100.0
       Jun    75.0   115.0   154.0
       Jul    20.0    35.0    72.0


Lemon Reservoir  FORECAST                   OBSERVED
              90%     50%     10%        Apr 
   Apr-Jul    21.0    27.0    36.0        4.8  
       May     8.0     9.0    11.0
       Jun     7.0    10.0    15.0
       Jul     1.0     3.0     5.0