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=_=_._.___======s_=~==================================================~~===============_s__.=_==_==__.._=..___==_____=_c_===____=_ UPPER RIO GRANDE BASIN Streamflow Forecasts - February I, 2004 ~-=.===-===-=============================&==================================...=====.=....-...---.--.-.--.......----...-..=-...... Forecast Point Forecast Period <<====== Drier ====== Future Conditions 90% (1000AF) 70% (1000AF) Wetter -==..>> Chance Of Exceeding * 50% (Most Probable) (1000AF) (% AVG.) 30% (1000AF) 10% (1000AF) 30-Yr Avg. (1000AF) Rio Grande at Thirty Mile Bridge APR-SEP =s=____======._===========================-========================= ======================= ====._=.---..=====_.__._.==.====~.==- 118 Rio Grande Reservoir Inflow APR-JUL Rio Grande at Wagon Wheel Gap APR-SEP South Fork Rio Grande at South Fork 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 Culebra Creek at San Luis APR-SEP Costilla Reservoir inflow MAR-JUL Costilla Creek nr Costilla MAR-JUL 220 102 350 11.2 4.10 2.6 1. 32 2.2 133 5.7 3.0 2.3 5.7 90 80 47 7.30 3.70 51 56 11.2 37 10.3 12.4 112 99 300 131 480 22 64 6.4 6.3 62 69 179 59 5.1 130 96 151 189 136 115 98 133 166 480 345 350 101 400 199 132 150 114 169 790 531 570 660 47 33 107 29 88 36 103 70 75 86 14.90 8.70 107 9.50 109 11.70 15.4 12.0 9.0 75 11.6 13.80 8.80 6.60 75 9.50 15.8 12.2 9.0 74 11.7 89 98 64 71 70 77 78 85 285 200 109 109 210 105 240 22 16.4 16.0 98 32 89 III 74 74 100 24 23 17.0 74 34 11.7 10.6 7.0 66 8.9 ===._____==============================================================_===========.===......===_=_......=___===_=a____=._._s=_==_ 22 28 26 17.0 65 Reservoir Usable I Capacity I I I I =----=====-=========================================-=============:==========-.-.-===...=.--.---=--=-.-=.-.-...-------..-=--=-.-=- *** I I Avg I This Year as % of UPPER RIO GRANDE BASIN Reservoir Storage (1000 AF) - End of January *** Usable Storage This Last Year Year UPPER RIO GRANDE BASIN Watershed Snowpack Analysis - February I, 2004 Watershed Number of Data Sites Last Yr Average PLATORO 53.7 _____._==._.=====:=_=====================_=:=============.===========_z= ====.~===_.__cz.===__==_s._z_..__..=_____.___.._.___..a=a 115 CONTINENTAL 15.0 RIO GRANDE 51.0 SANCHEZ 103.0 SANTA MARIA 45.0 TERRACE 13.1 ==--..--..=:===================================================-====-==-====._:.._=====-==-=---=.._-==.=:...=:=-.-.--.--.--..-.... 2.8 5.1 9.9 12.7 5.0 0.0 2.7 7.8 17.7 11.3 11.1 2.1 24.7 16.5 24.1 10.5 5.8 ALAMOSA CREEK BASIN 2 247 123 CONBJOS & RIO SAN ANTONIO 4 CULEBRA & TRINCHERA CREEK 5 UPPER RIO GRANDE BASIN 12 TOTAL UPPER RIO 'GRANDE BA 23 6.1 177 113 73 212 114 181 106 * 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 under 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.