Colorado State Basin Outlook Report

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State Basin Outlook Reports Page 3 of 15 ' Creek at Sargents. G UNNISON RIVER BASIN Streamflo w Forecasts - January 1, 2008 ------------------------------- Drier =_= ------- Future -------------- Conditions - -------- -- Wette --------- r ----------- Forecast Pt Chance of Exceeding Forecast 1 90% 70% 1 50% 1 30% 10% 1 30 Yr Avg Period 1(1000AF) (1000AF) 1(1000AF) (% AVG.)1(1 000AF) (1000AF)l (1000AF) Taylor Park blw Taylor Park Res (2) APR-JUL 73 94 110 107 127 154 103 Slate River nr Crested Butte APR-JUL 70 83 92 103 102 118 89 East River at Almont APR-JUL 134 174 205 107 238 291 192 Gunnison River nr Gunnison (2) APR-JUL 262 349 415 106 487 604 390 Tomichi Creek at Sargents APR-JUL 23 31 37 116 44 56 32 Cochetopa Creek blw Rock Ck nr Parlin APR-JUL 10.1 14.4 18.0 104 22 29 17.3 Tomichi Creek at Gunnison APR-JUL 50 75 95 117 119 160 81 Lake Fork at Gateview APR-JUL 104 127 145 115 164 193 126 Blue Mesa Reservoir Inflow (2) APR-JUL 509 661 780 108 912 1133 720 Paonia Reservoir Inflow MAR-JIJN 64 92 115 115 141 187 100 APR-JUL 61 90 115 113 144 194 102 North Fork Gunnison R nr Somers et (2) APR-JUL 214 284 340 112 403 508 305 Surface Creek at Cedaredge APR-JUL 11.4 15.6 19.0 111 23 29 17.1 Ridgway Reservoir Inflow APR-JUL 78 99 115 113 133 162 102 Uncompahgre River at Colona (2) APR-JUL 103 135 160 115 188 236 139 Gunnison River nr Grand Junction (2) APR-JUL 1045 1435 1700 109 1965 2355 1560 * 90%, 70%, 50%, 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. http://www.wcc.nres.usda.gov/cgibin/bor2.p1?state=co&year=2008&month=l&format=text 4/14/2008