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ZC=S='==8=_ZS======_====~==D_Z=========m=======s======================__===========__=============_=_=__=========_==.._=========__= GUNNISON RIVER BASIN Streamflow Forecasts - April 1, 2003 Forecast Point -======~========================az======_====_=========m====================:================:=:_===_======:=================_==== I <<====== Drier ====== Future Conditions Wetter =====>> I I I Forecast I. a======~============ Chance Of Exceeding * a==aa======aa========= I Period I 90\ 70\ 50\ (Most Probable) 30\ 10\ I 30-Yr Avg. I (1000AF) (1000AF) I (1000AF) (\ AVG.) I (1000AF) (1000AF) I (1000AF) ==_m__a_=====_~===_=~z===_====_~=_====a=======__===================='======_================1=======_==.============_===_==___==a== Taylor River blw Taylor Park Resv APR-JUL 52 67 I 77 75 I 87 102 103 I I I 65 73 I I I I I I I I I I I I I I I I I I I I I I I I I I I I Slate River nr Crested Butte APRCJUL East River at A1mont APR-JUL Gunnison River nr Gunnison APR - JUL Tomichi Creek at Sargents APR-JUL Cochetopa Creek b1w 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.~. Gunnison River nr Somerset APR-JUL Surface Creek nr Cedaredge APR-JUL Ridgway Reservoir Inflow . APR-JUL Uncompahgre River at Colona APR-JUL Gunnison River nr Grand Junction APR-JUL =_=====:ca.=_.====_==================._.=_====_==__=_====_================___===_=======_____====__._=====___====_______._===_.__= 104 185 15.0 2.6 315 159 8.6 635 GUNNISON RIVER BASIN Reservoir Storage (1000 AF) - End of March I I =-...-==__g-.~.==_=_a.a.._*.=.=_=.._...a__=._.=._.......==_..=____._.=====_._.___.____._.=.____===_____=______..=_=_=_.~_.====..__ Usable I *** Usable Storage *** I Number This Year as \ of Capacity I This Last I Watershed of ==.==a_====_=_=.. I Year Year Avg I Data Sites Last Yr Average ===..=-===========-.=========.=====_===========_=_a===============_=====I..===================.=====_..=_=~===_====_====__=======_ BLUE MESA 830.0 310.3 513.2 404.5 I UPPER GUNNISON BASIN 11 146 88 I 10.8 I I 4.0 I I 2.5 I I 113.6 I I 4.6 I I 60.9 I I 61.9 I I Reservoir CRAWFORD 14.3 FRUITGROWERS 4.3 FRUITLAND 9.2 MORROW POINT 121. 0 PAONIA 18.0 RIDGWAY 83.2 TAYLOR PARK 106.0 ....=-=_.......=-=_.._-=-=---==-=_....=-==....==..====_D.===_ZS====Z_~~====_~.~===a_.==D==_..==a==..a=====_s==_._._.___.===._====_ 5.4 2.5 1.2 108.0 7.9 64.9 39.2 50 35 48 46 40 50 50 4.1 2.4 1.6 108.7 3.7 68.5 62.5 59 129 235 22 7.3 49 71 430 58 57 194 10.5 60 66 885 ~ 68 70 12.0 1050 145 270 27 10.4 60 86 220 67 78 76 69 84 60 74 68 71 68 69 72 70 66 56 67 161 305 13.5 72 101 590 78 84 247 13.7 75 91 1220 71 80 89 TOTAL GUNNISON RIVER BASI 186 192 355 390 32 39 32 18.2 17.3 92 81 124 126 705 720 95 108 100 102 291 305 16.8 17.1 89 102 112 139 1460 1560 GUNNISON RIVER BASIN Watershed Snowpack Analysis - April 1, 2003 2 160 85 SURFACE.CREEK BASIN UNCOMPAHGRE BASIN 4 166 81 15 151 86 * 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.