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 21-Sep-18   21.35              
RG AT EL PASO 21-Sep-18 1.294 15.50              
RG BELOW AMERICAN DAM 21-Sep-18 0.000 0.00              
AMERICAN CANAL 21-Sep-18 1.828 15.30              
RG AT FORT QUITMAN 21-Sep-18 2.131 1.26              
RG ABOVE RIO CONCHOS 21-Sep-18 2.434 3.65              
RG BELOW RIO CONCHOS 21-Sep-18 0.994 15.10              
RG AT JOHNSON RANCH 21-Sep-18 1.764 15.60              
RG AT FOSTER RANCH 21-Sep-18 0.702 47.30              
PECOS NEAR LANGTRY 21-Sep-18 0.596 5.14              
DEVILS AT PAFFORD 21-Sep-18 0.820 12.10              
AMISTAD DAM                    
RG AT DEL RIO 21-Sep-18 0.511 19.70              
RG AT EAGLE PASS 21-Sep-18 2.343 290.00              
RG NEAR EL INDIO 21-Sep-18 2.235 33.00              
RG AT COLOMBIA                21-Sep-18 3.600 228.00              
RG AT LAREDO 21-Sep-18 2.190 267.00              
FALCON DAM                    
RG AT RIO GRANDE CTY 21-Sep-18 7.702 10.50              
RG BL ANZALDUAS DAM 21-Sep-18 23.880 11.70              
RG AT SAN BENITO 21-Sep-18 10.711 11.60              
RG AT BROWNSVILLE 21-Sep-18 1.441 15.10              
                     
ANZALDUAS SALINITY 21-Sep-18 31.835 520 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
21-Sep-18 00:00 2496 2496 1306.600 77 0        
          (3%)       1 0
CABALLO                    
21-Sep-18 00:00 280 403 1261.795 35 0        
          (12%)       0 1
AMISTAD                    
21-Sep-18 00:00 4040 6181 330.100 1923 6        
Requested 06:00 U.S. 40.00 CMS (48%)       0 0
Release   MEX. 3.00 CMS            
FALCON                    
21-Sep-18 00:00 3265 3883 81.775 882 13        
Requested 06:00 U.S. 2.00 CMS (27%)       0 0
Release   MEX. 5.00 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                    
21-Sep-18 00:00 24,322 3593.96 11,183 -16        
LAKE MEAD                    
21-Sep-18 00:00 25,877 1078.46 9,884 -1        
                     
                     
                     
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                    
9/20/18 8:00 245 317 0.000 164.316 0.150 67%        
BOQUILLA                    
9/20/18 8:00 2894 3278 0.000 2182.327 35.300 75%        
F.I. MADERO                    
9/20/18 8:00 355 478 0.000 236.170 18.000 66%        
PICO DEL AGUILA                    
9/20/18 8:00 48 87 0.000 31.340 1.200 65%        
CHIHUAHUA                    
9/20/18 8:00 23 38 0.000 17.767 0.090 76%        
EL REJON                    
9/20/18 8:00 7 8 0.000 4.950 0.000 75%        
LUIS L. LEON                    
9/20/18 8:00 292 832 0.000 270.380 15.000 92%        
    RIO SAN DIEGO BASIN                    
CENTENARIO                    
9/20/18 8:00 25 26 0.000 22.367 0.000 91%        
SAN MIGUEL                    
9/20/18 8:00 21 22 0.000 17.975 0.000 85%        
    RIO SAN RODRIGO BASIN                  
LA FRAGUA                    
9/20/18 8:00 47 85 0.000 49.665 7.000 105%        
    RIO SALADO BASIN                    
VENUSTIANO CARRANZA                    
9/20/18 8:00 614 1322 0.000 578.407 0.000 94%        
                     
                     
    RIO ALAMO BASIN                    
LAS BLANCAS                    
9/20/18 8:00 84 134 0.000 37.164 0.300 44%        
    RIO SAN JUAN BASIN                    
EL CUCHILLO                    
9/20/18 8:00 1123 1784 0.000 769.215 5.269 68%        
MARTE GOMEZ                    
9/20/18 8:00 782 2304 0.000 484.127 0.000 62%        
                     
  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.