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 20-May-24   22.46              
RG AT EL PASO 20-May-24 1.165 13.63   8364000          
RG BELOW AMERICAN DAM 20-May-24 1.477 3.68   8365000          
AMERICAN CANAL 20-May-24 1.468 10.16   8364500          
RG AT FORT QUITMAN 20-May-24 2.383 1.46   8370500          
RG ABOVE RIO CONCHOS 20-May-24 1.580 0.00   8371500          
RG BELOW RIO CONCHOS 20-May-24 0.536 0.54   8374200          
RG AT JOHNSON RANCH 20-May-24 0.644 0.00   8375000          
RG AT FOSTER RANCH 20-May-24 0.427 4.92   8377200          
PECOS NEAR LANGTRY 20-May-24 0.492 2.57   8447410          
DEVILS AT PAFFORD 20-May-24 0.628 2.41   8449400          
AMISTAD DAM                    
RG AT DEL RIO 20-May-24 0.434 9.71   8451800          
RG AT EAGLE PASS 20-May-24 0.886 21.30   8458000          
RG NEAR EL INDIO 20-May-24 1.793 21.20   8458700          
RG AT COLOMBIA                20-May-24 1.930 16.50   8458800          
RG AT LAREDO 20-May-24 0.375 14.61   8459000          
FALCON DAM                    
RG AT RIO GRANDE CTY 20-May-24 8.086 45.86   8464700          
RG BL ANZALDUAS DAM 20-May-24 24.320 32.52   8469200          
RG AT SAN BENITO 20-May-24 10.710 11.42   8473700          
RG AT BROWNSVILLE 20-May-24 2.432 2.72   8475000          
                     
ANZALDUAS SALINITY 20-May-24 31.695 740 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
20-May-24 0:00 2496 2496 1322.255 560 1        
          (22%)       0 1
CABALLO                    
20-May-24 0:00 280 403 1263.870 62 0        
          (22%)       0 1
AMISTAD - 08450800                  
20-May-24 0:00 3980 6056 320.250 817 -1        
Requested 6:00 U.S. 15.00 CMS (21%)       0 1
Release   MEX. 3.00 CMS            
FALCON - 08461200                    
20-May-24 0:00 3289 3923 76.920 316 -4        
Requested 6:00 U.S. 30.00 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                    
20-May-24 0:00 25,160 3562.74 7,983 14        
LAKE MEAD                    
20-May-24 0:00 28,945 1069.04 9,123 -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                    
5/20/24 0:00 245 377 -0.110 93.474 0.550 38%        
BOQUILLA                    
5/20/24 0:00 2894 3208 -5.023 781.580 37.000 27%        
F.I. MADERO                    
5/20/24 0:00 355 456 -0.671 83.480 4.300 23%        
PICO DEL AGUILA                    
5/20/24 0:00 48 89 -0.406 24.588 4.700 51%        
CHIHUAHUA                    
5/20/24 0:00 23 36 -0.043 13.963 0.060 60%        
EL REJON                    
5/20/24 0:00 7 8 -0.007 5.639 0.000 85%        
LUIS L. LEON                    
5/20/24 0:00 292 825 -0.783 226.799 8.000 78%        
    RIO SAN DIEGO BASIN                  
CENTENARIO                    
5/20/24 0:00 25 26 -0.170 14.184 0.595 58%        
SAN MIGUEL                    
5/20/24 0:00 21 22 -0.176 14.620 1.250 69%        
    RIO SAN RODRIGO BASIN                  
LA FRAGUA                    
5/20/24 0:00 47 85 -0.775 21.794 0.000 46%        
    RIO SALADO BASIN                  
VENUSTIANO CARRANZA                  
5/20/24 0:00 874 1322 -0.447 145.330 0.000 17%        
                     
                     
    RIO ALAMO BASIN                    
LAS BLANCAS                    
5/20/24 0:00 84 134 -0.039 22.889 0.300 27%        
    RIO SAN JUAN BASIN                  
EL CUCHILLO                    
5/20/24 0:00 1123 1784 -0.652 380.488 7.987 34%        
MARTE GOMEZ                    
5/20/24 0:00 782 2209 -5.086 260.301 49.000 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.