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.......................-..._.............._...~................................................................................... UPPER RrO GRANDE BASrN Streamflow porecasts - January 1, 2004 Porecast Point ..................-.................................................................................................c............. Porecast Period Rio Grande Reservoir Inflow APR-JUL Rio Grande at Wagon Wheel Gap APR-SEP South Pork Rio Grande at South Pork APR-SEP Rio Grande nr Del Norte APR-SEP Saguache Creek nr Saguache APR-SEP Alamosa Creek abv Terrace Reservoir APR_SEP La Jara Creek nr Capulin MAR-JUL Trinchera Creek APR-SEP Sangre de Cristo Creek APR-SEP Ute Creek APR-SEP Platoro Reservoir Inflow APR-JUL APR-SEP Conejos River nr Mogote APR-SEP San Antonio River at Ortiz APR-SEP Los Pinos River nr Ortiz APR-SEP CulebraCreek at San Luis APR-SEP Costilla Reservoir inflow MAR-JUL Costilla Creek nr Costilla MAR-JUL ......................................................................................................~........................... <<...... Drier ...... 220 103 330 12.6 4.20 1.5 0.49 1.4 138 5.3 33 2.8 2.4 5.9 86 52 49 54 UPPER RIO GRANDE BASIN Reservoir Storage (1000 AP) - End of December Wetter .....>> I I .................... Chance Of Exceeding * ...................... I 90% 70% 50% (Most PrObable) 30% 10% I 30-Y:r Avg. I (1000AP) (1000AP) I (1000AP) (% AVG.) I (1000AP) (1000AF) I (lOOOAP) ..................._.._=......._..._..a.............................1.......................1..................................... Rio Grande at Thirty Mile Bridge APR-SEP 95 122 I 145 107 I 172 220 136 I I I 127 108 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Reservoir PLATORO 53.7 RIO GRANDE 51.0 SANCHEZ 103.0 SANTA MARIA 45.0 TERRACE 13.1 .................................................................................................................................. 4.9 7.6 12.6 4.6 0.0 7.8 16.3 10.8 11.1 1.8 108 315 135 490 22 69 7.60 5.4 2.60 5.1 62 68 187 10.8 56 11.3 5.8 14.3 Future Conditions 10.00 5.80 15.6 17.0 19.3 149 380 110 445 188 118 I I ...._..............~.............................................................................................................. Usable I -** Usable Storage *** I Number This Year 'as % of Capacity I This Last I Watershed of ................. Year Year Avg I Data Sites Last Yr Average ........................................................................j......................................................... CONTINENTAL 15.0 2.1 2.1 4.9 I ALAMOSA CREEK BASIN 1 215 124 I 24.3 I I 15.1 I I 23.9 I I 10.1 I I 5.6 I I 157 119 179 540 345 600 113 710 210 132 29 88 870 531 80 114 36 45 33 115 12.40 91 108 70 8.0 67 10.6 15.80 8.70 66 9.00 14.5 12.0 8.0 66 10.9 13.70 8.80 70 77 109 109 15.1 12.2 220 110 255 78 86 91 100 64 71 95 21 300 200 71 96 31 16.4 74 23 86 109 74 8.0 76 10.2 31 23 74 24 13.6 10.6 32 26 UPPER RIO GRANDE BASIN Watershed Snowpeck Analysis - Janua:ry 1, 2004 2 132 98 CONEJOS " RIO SAN ANTONIO CULEBRA " TRINCHBRA CREEK UPPER RIO GRANDE BASIN TOTAL UPPER RIO GRANDE BA 3 103 69 4 152 90 10 133 85 *90%, 70%" 30%, and 10% chances of exceeding are the probabilities that the actual volume will exceed the volumes in the table. The average is computed for the 1971-2000 base period. (1) - The values listed unde:r the 10% and 90% Chance of Exceeding are actually 5% and 95% exceedance levels. (2) - The value is natural volume - actual volume may be affected by upstream water management.