RIO GRANDE FLOW / RESERVOIR CONDITIONS        
                     
The Rio Grande Flow Conditions are updated daily, Monday thru Friday at        
approximately 9:35 am Mountain Time/10:35 am Central Time.        
                     
                     
The following data are Provisional and are subject to revision.  Stage and flow determinations are made      
for river conditions at approximately 7:00 am to 8:00 am Standard Time unless otherwise indicated.      
                     
  DATE STAGE DISCHARGE RAINFALL            
    METERS             CMS     MM            
RG BELOW CABALLO DAM 14-Dec-18   0.00              
RG AT EL PASO 14-Dec-18 0.691 0.54              
RG BELOW AMERICAN DAM 14-Dec-18 1.525 1.10              
AMERICAN CANAL 14-Dec-18 0.000 0.00              
RG AT FORT QUITMAN 14-Dec-18 2.370 4.07              
RG ABOVE RIO CONCHOS 14-Dec-18 1.909 1.74              
RG BELOW RIO CONCHOS 14-Dec-18 0.729 6.20 3            
RG AT JOHNSON RANCH 14-Dec-18 1.357 6.87              
RG AT FOSTER RANCH 14-Dec-18 0.574 16.00              
PECOS NEAR LANGTRY 14-Dec-18 0.670 8.10              
DEVILS AT PAFFORD 14-Dec-18 0.822 11.60              
AMISTAD DAM                    
RG AT DEL RIO 14-Dec-18 0.457 12.80              
RG AT EAGLE PASS 14-Dec-18 1.008 37.20              
RG NEAR EL INDIO 14-Dec-18 2.017 33.00              
RG AT COLOMBIA                14-Dec-18 2.313 44.30              
RG AT LAREDO 14-Dec-18 0.780 49.70              
FALCON DAM                    
RG AT RIO GRANDE CTY 14-Dec-18 7.847 26.40              
RG BL ANZALDUAS DAM 14-Dec-18 24.180 24.10              
RG AT SAN BENITO 14-Dec-18 10.615 8.14              
RG AT BROWNSVILLE 14-Dec-18 0.755 2.40              
                     
ANZALDUAS SALINITY 14-Dec-18 31.805 800 PPM            
                     
STORED WATER IN LARGE RESERVOIRS OF THE RIO GRANDE BASIN        
(Capacities and Storages in Million M3, Elevations in Meters)        
         
Reservoir                     Date Hour Normal Flood Current     24-hr        
    Cons. Control Elev.  Storage Storage        
    Capacity Capacity   (% Cons.) Change        
                     
ELEPHANT BUTTE                 Criteria Checks
14-Dec-18 00:00 2496 2496 1309.125 121 1        
          (5%)       1 0
CABALLO                    
14-Dec-18 00:00 280 403 1261.565 32 0        
          (12%)       0 1
AMISTAD                    
14-Dec-18 00:00 4040 6181 332.725 2355 3        
Requested 06:00 U.S. 7.00 CMS (58%)       0 0
Release   MEX. 3.00 CMS            
FALCON                    
14-Dec-18 00:00 3265 3883 85.040 1451 9        
Requested 06:00 U.S. 10.00 CMS (44%)       0 0
Release   MEX. 8.00 CMS            
                     
STORED WATER IN LARGE RESERVOIRS OF THE COLORADO BASIN        
(Capacities and Storages in 1000 Acre-Feet, Elevations in Feet)        
Reservoir                     Date Hour Total Capacity Current     24-hr        
        Elev.  Storage Storage        
            Change        
LAKE POWELL                    
14-Dec-18 00:00 24,322 3584.51 10,331 -17        
LAKE MEAD                    
14-Dec-18 00:00 25,877 1079.29 9,952 9        
                     
                     
                     
MEXICAN RESERVOIRS      
(Storages in Million M3, Elevations in Meters, Releases in CMS)      
                     
Reservoir                     Date Normal Flood   Current      Spill Percent        
  Cons. Control Elev.  Storage or of        
  Capacity Capacity     Release Cons.        
    RIO CONCHOS BASIN                    
SAN GABRIEL                    
12/13/18 8:00 245 317 0.000 195.145 0.000 80%        
BOQUILLA                    
12/13/18 8:00 2894 3278 0.000 2373.795 1.300 82%        
F.I. MADERO                    
12/13/18 8:00 355 478 0.000 269.301 0.000 76%        
PICO DEL AGUILA                    
12/13/18 8:00 48 87 0.000 31.994 0.000 66%        
CHIHUAHUA                    
12/13/18 8:00 23 38 0.000 17.094 0.090 73%        
EL REJON                    
12/13/18 8:00 7 8 0.000 4.749 0.000 72%        
LUIS L. LEON                    
12/13/18 8:00 292 832 0.000 251.514 0.000 86%        
    RIO SAN DIEGO BASIN                    
CENTENARIO                    
12/13/18 8:00 25 26 0.000 21.388 0.160 87%        
SAN MIGUEL                    
12/13/18 8:00 21 22 0.000 18.739 0.000 89%        
    RIO SAN RODRIGO BASIN                  
LA FRAGUA                    
12/13/18 8:00 47 85 0.000 46.887 7.000 99%        
    RIO SALADO BASIN                    
VENUSTIANO CARRANZA                    
12/13/18 8:00 614 1322 0.000 749.422 3.084 122%        
                     
                     
    RIO ALAMO BASIN                    
LAS BLANCAS                    
12/13/18 8:00 84 134 0.000 53.518 0.300 64%        
    RIO SAN JUAN BASIN                    
EL CUCHILLO                    
12/13/18 8:00 1123 1784 0.000 862.159 4.205 77%        
MARTE GOMEZ                    
12/13/18 8:00 782 2304 0.000 739.718 0.000 95%        
                     
  Contributions from Rio Alamo and Rio San Juan to the Rio Grande are allotted 100% to Mexico per 1944 Treaty    
  article 4 (a)                    
                     
** Usable storage is an estimate of waters in storage which could be released through existing outlet works.