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 21-May-24   30.30              
RG AT EL PASO 21-May-24 1.128 12.27   8364000          
RG BELOW AMERICAN DAM 21-May-24 1.431 3.09   8365000          
AMERICAN CANAL 21-May-24 1.443 9.75   8364500          
RG AT FORT QUITMAN 21-May-24 2.361 1.34   8370500          
RG ABOVE RIO CONCHOS 21-May-24 1.580 0.00   8371500          
RG BELOW RIO CONCHOS 21-May-24 0.508 0.28   8374200          
RG AT JOHNSON RANCH 21-May-24 0.645 0.00   8375000          
RG AT FOSTER RANCH 21-May-24 0.428 4.98   8377200          
PECOS NEAR LANGTRY 21-May-24 0.487 2.47   8447410          
DEVILS AT PAFFORD 21-May-24 0.631 2.44   8449400          
AMISTAD DAM                    
RG AT DEL RIO 21-May-24 0.475 15.05   8451800          
RG AT EAGLE PASS 21-May-24 0.896 21.90   8458000          
RG NEAR EL INDIO 21-May-24 1.790 20.81   8458700          
RG AT COLOMBIA                21-May-24 1.875 13.05   8458800          
RG AT LAREDO 21-May-24 0.374 14.49   8459000          
FALCON DAM                    
RG AT RIO GRANDE CTY 21-May-24 8.000 37.62   8464700          
RG BL ANZALDUAS DAM 21-May-24 24.320 32.52   8469200          
RG AT SAN BENITO 21-May-24 10.612 7.03   8473700          
RG AT BROWNSVILLE 21-May-24 2.426 2.68   8475000          
                     
ANZALDUAS SALINITY 21-May-24 31.715 770 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-May-24 0:00 2496 2496 1322.280 561 1        
          (22%)       0 1
CABALLO                    
21-May-24 0:00 280 403 1263.885 62 0        
          (22%)       0 1
AMISTAD - 08450800                  
21-May-24 0:00 3980 6056 320.250 817 0        
Requested 6:00 U.S. 15.00 CMS (21%)       0 1
Release   MEX. 3.00 CMS            
FALCON - 08461200                    
21-May-24 0:00 3289 3923 76.885 313 -3        
Requested 6:00 U.S. 45.00 CMS (10%)       1 0
Release   MEX. 10.00 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-May-24 0:00 25,160 3562.86 7,991 8        
LAKE MEAD                    
21-May-24 0:00 28,945 1068.93 9,115 -8        
                     
                     
                     
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                    
5/21/24 0:00 245 377 0.000 93.474 0.550 38%        
BOQUILLA                    
5/21/24 0:00 2894 3208 -5.024 776.556 38.300 27%        
F.I. MADERO                    
5/21/24 0:00 355 456 -0.536 82.944 3.800 23%        
PICO DEL AGUILA                    
5/21/24 0:00 48 89 -0.406 24.182 4.700 50%        
CHIHUAHUA                    
5/21/24 0:00 23 36 -0.022 13.941 0.090 60%        
EL REJON                    
5/21/24 0:00 7 8 -0.008 5.631 0.000 85%        
LUIS L. LEON                    
5/21/24 0:00 292 825 -0.783 226.016 8.000 77%        
    RIO SAN DIEGO BASIN                  
CENTENARIO                    
5/21/24 0:00 25 26 -0.170 14.014 0.595 57%        
SAN MIGUEL                    
5/21/24 0:00 21 22 -0.176 14.444 1.500 68%        
    RIO SAN RODRIGO BASIN                  
LA FRAGUA                    
5/21/24 0:00 47 85 0.000 21.794 0.000 46%        
    RIO SALADO BASIN                  
VENUSTIANO CARRANZA                  
5/21/24 0:00 874 1322 0.000 145.330 0.000 17%        
                     
                     
    RIO ALAMO BASIN                    
LAS BLANCAS                    
5/21/24 0:00 84 134 -0.039 22.850 0.300 27%        
    RIO SAN JUAN BASIN                  
EL CUCHILLO                    
5/21/24 0:00 1123 1784 -1.304 379.184 8.961 34%        
MARTE GOMEZ                    
5/21/24 0:00 782 2209 -4.359 255.942 44.200 33%        
                     
  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.