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State Basin Outlook Reports <br />Page 12 of 15 <br />Drier =_= Future Conditions =_= Wetter =__> I <br />Forecast Pt Chance of Exceeding <br />Forecast 1 90% 70% 1 50% 1 30% 10% I 30 Yr Avg <br />Period 1(1000AF) (1000AF <br />------------------------------ )1(1000AF) <br />---------- (%- AVG.)1(1000AF) <br />------------------- (1000AF)l <br />---------- (1000AF) <br />----------- <br />---------------------------------------- <br />Rio Grande at Thirty Mile Bridge (2) ----------- -------- ---------- ----------- <br />APR-SEP 115 143 163 120 185 220 136 <br />APR-JiJL 106 127 142 120 158 185 118 <br />Rio Grande at Wagon Wheel Gap (2) <br />APR-SEP 300 375 430 125 490 585 345 <br />South Fork Rio Grande at South Fork <br />APR-SEP 120 151 175 133 200 245 132 <br />Rio Grande nr Del Norte (2) <br />APR-SEP 470 595 690 130 795 965 531 <br />Saguache Creek nr Saguache (2) <br />APR-SEP 22 30 36 109 43 54 33 <br />Alamosa Creek abv Terrace Reservoir <br />APR-SEP 59 75 88 126 102 125 70 <br />La Jara Creek nr Capulin <br />MAR-JUL 6.1 8.6 10.7 123 13.1 17.2 8.7 <br />Trinchera Creek abv Turners Ranch <br />APR-SEP 7.6 11.4 14.0 117 16.6 20 12.0 <br />Sangre de Cristo Creek (2) <br />APR-SEP 3.0 7.8 11.0 125 14.2 19.0 8.8 <br />Ute Ck nr Fort Garland <br />APR-SEP 8.9 12.6 15.6 128 19.1 25 12.2 <br />Platoro Reservoir Inflow <br />APR-JUL 53 67 77 120 88 107 64 <br />APR-SEP 58 72 83 117 95 114 71 <br />Conejos River nr Mogote (2) <br />APR-SEP 165 215 250 125 290 360 200 <br />San Antonio River at Ortiz <br />APR-SEP 10.6 16.2 21 128 27 37 16.4 <br />Los Pinos River nr Ortiz <br />APR-SEP 61 81 97 131 115 145 74 <br />Culebra Creek at San Luis (2) <br />APR-SEP 13.8 20 26 113 32 44 23 <br />Costilla Reservoir Inflow <br />MAR-JUL 7.6 10.4 12.6 119 15.2 19.5 10.6 <br />Costilla Creek nr Costilla (2) <br />MAR-JUL 15.7 23 30 115 38 51 26 <br />-------------------------------------------------------------------------------- <br />-------------------------------------------------------------------------------- <br />* 90%, 70%, SOg, 30%, and 10% chances of exceeding are the probabilities that <br />the actual volume will exceed the volumes in the table. <br />The average is computed for the 1971-2000 base period. <br />(1) - The values listed under the 10% and 90% Chance of Exceeding are <br />actually 5% and 95$ exceedance levels. <br />(2) - The value is natural volume - actual volume may be affected by upstream <br />water management. <br />http://www.wcc.nres.usda.gov/cgibin/bor2.p1?state=co&year=2008&month=l&format=text 4/14/2008