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.        
Previous Reports        
                     
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 WEB          
    METERS             CMS     MM LINK          
RG BELOW CABALLO DAM 10-Dec-25   0.03              
RG AT EL PASO 10-Dec-25 0.578 0.21   8364000          
RG BELOW AMERICAN DAM 10-Dec-25 1.527 0.63   8365000          
AMERICAN CANAL 10-Dec-25 0.410 0.03   8364500          
RG AT FORT QUITMAN 10-Dec-25 2.598 1.91   8370500          
RG ABOVE RIO CONCHOS 10-Dec-25 1.989 0.00   8371500          
RG BELOW RIO CONCHOS 10-Dec-25 0.565 0.63   8374200          
RG AT JOHNSON RANCH 10-Dec-25 1.020 0.52   8375000          
RG AT FOSTER RANCH 10-Dec-25 0.441 6.15   8377200          
PECOS NEAR LANGTRY 10-Dec-25 0.472 2.18   8447410          
DEVILS AT PAFFORD 10-Dec-25 0.640 2.87   8449400          
AMISTAD DAM                    
RG AT DEL RIO 10-Dec-25 0.460 21.35   8451800          
RG AT EAGLE PASS 10-Dec-25 1.036 32.10   8458000          
RG NEAR EL INDIO 10-Dec-25 1.832 27.53   8458700          
RG AT COLOMBIA                10-Dec-25 1.999 22.80   8458800          
RG AT LAREDO 10-Dec-25 0.398 18.95   8459000          
FALCON DAM                    
RG AT RIO GRANDE CTY 10-Dec-25 7.755 19.14   8464700          
RG BL ANZALDUAS DAM 10-Dec-25 23.840 14.45   8469200          
RG AT SAN BENITO 10-Dec-25 10.573 6.39   8473700          
RG AT BROWNSVILLE 10-Dec-25 0.662 2.62   8475000          
                     
ANZALDUAS SALINITY 10-Dec-25 30.720 930 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
10-Dec-25 0:00 2496 2496 ########## ########          
          (-86010667%)       1 0
CABALLO                    
10-Dec-25 0:00 280 403 1260.150 19 0        
          (7%)       1 0
AMISTAD - 08450800                    
10-Dec-25 0:00 3980 6056 321.910 946 0        
Requested 6:00 U.S. 15.00 CMS (24%)       0 1
Release   MEX. 3.00 CMS            
FALCON - 08461200                    
10-Dec-25 0:00 3289 3923 77.395 352 0        
Requested 6:00 U.S. 10.00 CMS (11%)       0 1
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                    
10-Dec-25 0:00 25,160 3542.33 6,597 -8        
LAKE MEAD                    
10-Dec-25 0:00 28,945 1060.14 8,434 10        
                     
                     
                     
MEXICAN RESERVOIRS      
(Storages in Million M3, Elevations in Meters, Releases in CMS)      
                     
Reservoir                     Date Normal Flood   Current      Spill Percent        
  Cons. Control Chg in Sto. Storage or of        
  Capacity Capacity     Release Cons.        
    RIO CONCHOS BASIN                    
SAN GABRIEL                    
12/10/25 0:00 245 377 0.000 100.199 0.000 41%        
BOQUILLA                    
12/10/25 0:00 2847 3208 -0.805 1091.264 1.300 38%        
F.I. MADERO                    
12/10/25 0:00 333 456 -0.280 232.302 0.000 70%        
PICO DEL AGUILA                    
12/10/25 0:00 48 89 -0.090 35.414 0.000 73%        
CHIHUAHUA                    
12/10/25 0:00 23 36 -0.039 12.359 0.090 53%        
EL REJON                    
12/10/25 0:00 7 8 -0.010 2.842 0.000 44%        
LUIS L. LEON                    
12/10/25 0:00 284 825 0.000 141.664 0.000 50%        
    RIO SAN DIEGO BASIN                    
CENTENARIO                    
12/10/25 0:00 25 26 -0.503 6.681 0.000 27%        
SAN MIGUEL                    
12/10/25 0:00 21 22 0.000 15.745 0.000 74%        
    RIO SAN RODRIGO BASIN                  
LA FRAGUA                    
12/10/25 0:00 47 85 0.000 35.246 0.000 75%        
    RIO SALADO BASIN                    
VENUSTIANO CARRANZA                    
12/10/25 0:00 874 1322 0.000 116.749 0.000 13%        
                     
                     
    RIO ALAMO BASIN                    
LAS BLANCAS                    
12/10/25 0:00 84 134 0.000 23.160 0.300 28%        
    RIO SAN JUAN BASIN                    
EL CUCHILLO                    
12/10/25 0:00 1123 1784 0.000 915.323 7.365 81%        
MARTE GOMEZ                    
12/10/25 0:00 782 2209 0.000 698.558 10.000 89%        
                     
  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.