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=======================:==:::======:======:===============:=============:=========================:=============================== UPPER RIO GRANDE BASIN Streamflow Forecasts - March 1, 2000 Forecast Point ============================~=============================================================~======================================= Forecast Period <<====== Dr1er ====== Future Condit1ons Wetter ====:>> 90' (lOOOAF) --------------------- -------------------- 70' {lOOOAF) ==================================================================== RiO Grande at Th1rty Mile Bridge APR-5EP R10 Grande Reservo1r Inflow APR-JUL RiO Grande at Wagon Wheel Gap APR-SEP South Fork Rio Grande at South Fork APR-SEP R10 Grande nr Del Norte APR-SEP Saguache Creek nr Saguache APR-5EP Alamosa Creek abv Terrace Reservoir APR-SEP La Jara Creek nr Capulin MAR-JUL Trinchera Water Supply APR-SEP platoro ReserV01r Inflow APR-JUL APR-SEP Conejos River nr Mogote APR SEP San AntoniO River at Ort1z APR SEP Los Pinos River nr Orti~ APR-SEP Culebra Creek at San Luis APR SEP Costilla ReserV01r Inflow MAR JUL Costilla Creek nr Costilla MAR-JUL 59 56 76 25 109 6. 12.8 1.20 9.3 14.3 16.5 34 .1 12.2 7.0 2 10 5.5 73 69 138 46 185 11.2 24 .98 13.5 3.4 17.3 4.18 7.8 2S 28 71 9.0 Chance Of Exceeding 50% (Most Probable) {lOOOAF) (% AVG.) 30' {lOOOAF) 10' (1000AFl 123 114 320 128 498 35 S9 .48 49 50 56 172 12.3 61 33 11.91 29 30-Yr Avg. (lOOOM) 133 118 330 132 520 34 69 8.60 30 59 65 201 16.0 72 I ,,~ 8S 80 99 92 20 9.10 ---------------------------------------------- -- ------------------------ ------------------------ ------------------- -------- ---------------------------------------------------------------- ---------------------------------------- -- ----------------- " UPPER RIO GRANDE BASIN ReserVOir Storage (1000 AF) End of rebruary 64 6B 190 70 S8 242 UPPER RIO GRANDE BASIN Watershed Snowpack Analysis - March 1, 2000 Watershed Number of Data Sites --------------------------------------------------------- _______________4______________________________________--- 38 56 28 43 5.3 ALAMOSA CREEK BASIN 53 94 365 2S Reservoir Usable I Capacity ---------------------------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------.------------------------------------------- Average ... Usable Storage This Last Year year Avg __ _ _4_____________________________________ --------------------------------------------- CONTINENTAL 15.0 53.7 51. 0 103.0 PLATORO RIO GRANDE SANCHEZ SANTA HARIA 45.0 TERRACE 13. ===========--==================-===============-====================================:===================================~========= 4.4 29. 3.0 45.8 20.1 8.8 .7 18.9 23.3 36.8 .2 .4 275 S3 Last Yr This Year as % of S 93 44 56 72 18.0 53 49 35 5.22 34 39 45 . 9C\, 70%, 30%, and lC% chaTlces of exceeding are the prc/oab'llit'les that the actual volume will exceed t.he Vcl-.i.-nes in t.:\e t.able. The average 15 computed for the 1961-1990 base period. J4 44 (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. 3.00 OJ 77 32 36 54 55 39 44 129 7.6 43 23 8.15 20 100 50 31 42 S.O 30 16.0 6.00 14 .0 80 66 64 16.3 16.5 16.9 8.9 CONEJOS & RIO SAN ANTONIO CULEBRA & TRINCHERA CREEK UPPER RIO GRANDE BASIN 12 TOTAL UPPER RIO GRANDE BA 26 5.9