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=================_==============_=================_==_=========__====.a_=======m_===.==_=_a=.===_======~===.--===--======...=:_.== GUNNISON RIVER BASIN Streamflow Forecasts - May 1, 2003 ================_=====:==========================================================m=======================================-======== I <<====== Drier ====== Future Conditions I Forecast I ==========~===.=.=== Chance Of Exceeding * ==a======.========._=- Period I 90% 70% 50% (Most probable) 30% 10% 30-Yr Avg. '(1000AF) (1000AF) I (1000AF) (% AVG.) I (1000AF) (1000AF) I (1000AF) ================================================================_===1======_===============-1=========================--=-======.= Taylor River blw Taylor Park Resv APR-JUL 49 63 I 73 71 I 83 97 103 , , , 62 70 I I , I 135 70' I , , 260 67 I I , I 23 72' I , , 8.5 49 I I I I 52 64 I , I , 80 64 I I , I 485 67' , I I 59 59' I . 61 60' , , , 200 66 I I , I 10.6 62' , I , 65 64 I , , , 75 54' I , I 920 59 I I I Forecast Point Slate River nr Crested Butte APR-JUL East River at A1mont APR-JUL Gunnison River nr Gunnison AFR-JUL Tomichi Creek at Sargents APR-JUL Cochetopa Creek blw Rock Creek APR-JUL Tomichi Creek at Gunnison APR-JUL Lake Fork at Gateview APR-JUL Blue Mesa Reservoir Inflow APR-JUL paonia Reservoir Inflow MAR -JUN APR-JUL N.F. Gunnison River nr Somerset APR-JUL Sur~ace Creek nr Cedaredge APR-JUL Ridgway Reservoir Inflow APR-JUL Uncompahgre River at Colona APR-JUL Gunnison River nr Grand Junction APR-JUL ===a===_c=========.==================_.-=======.=============ca===========================-============-===-=======~====-=.======- 1270 1560 100 181 14.0 2.8 320 151 8.0 575 GUNNISON RIVER BASIN Reservoir Storage (1000 AF) - End of April Reservoir BLUE MESA 830.0 CRAWFORD 14.3 FRUITGROWERS 4.3 FRUITLAND 9.2 MORROW POINT 121,0 PAONIA 18.0 RIDGWAY 83.2 TAYLOR PARK 106.0 .__a__a=_======m_Da=____==__=__==_____==___==___________==__=______==___.__==_=__._.____=_==_.___==__=__._____=_m.=.___=_._._.____ 297.4 6.8 4,1 3.4 113.1 9.8 71.4 42,2 54 31 60 45 43 52 51 503.4 7.0 2.8 4.1 110.4 12.4 70.8 66.6 59 121 230 19.0 6.2 43 72 420 53 53 179 9.5 59 65 780 Wetter-=====>> 65 149 290 27 10.8 62 88 550 65 69 222 11.9 71 86 1060 70 89 170 192 I I ===========================================---=========-=====.---=-===-=====-----=====._.=-========-=------==-======--=-=========- Usable I *** Usable Storage *** I Number This -Year as %of Capacity' This Last I watershed of ========c=c====== I Year Year Avg I Data Sites Last Yr Average ========.=============================~======_=====a=====.=======a=====.I========_.======~-============--==-s===========_sa==_==== 404.7 I , 12.1 I I 4.1 I I 4.9 , , 113.4 I I 7.4 I , 57.9 I I 59.9 I , 340 390 32 32 14.2 17.3 79 81 100 126 650 720 75 82 100 102 256 305 14.1 17.1 82 102 103 139 GUNNISON RIVER BASIN Watershed Snowpack Analysis - May 1, 2003 11 338 71 UPPER GUNNISON BASIN SURFACE CREEK BASIN UNCOMPAHGRE BASIN TOTAL GUNNISON RIVER BASI 2 367 77 4 547 50 15 365 66 * 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.