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------------------ - - - - - -- <br />UPPER COLORADO RIVER BASIN <br />Streamflow Forecasts - April 1, 2003 <br />Drier =____= <br />Future Conditions =___ -_= <br />Wetter <br />Forecast Point <br />Forecast { <br />____________________ <br />Chance Of Exceeding <br />Pbriod <br />90% <br />70! <br />{ <br />50% (Most Probable) { <br />30% <br />101 <br />( 30 -Yr Avg. <br />{ <br />(1000AF) <br />(1000AF) <br />{ <br />(1000AF) (!k AVG.) { <br />(1000AF) (1000AF) <br />{ (1000AF) <br />Lake Granby Inflow <br />APR -JUL <br />172 <br />202 <br />{ <br />225 100 <br />{ <br />251 <br />294 <br />225 <br />Willow Creek Reservoir Inflow <br />APR -JUL <br />38 <br />48 <br />{ 55 108 <br />{ <br />63 <br />75 <br />51 <br />Williams Fork Reservoir inflow <br />APR -JUL <br />79 <br />91 <br />{ 100 105 <br />{ <br />109 <br />124 <br />95 <br />Dillon Reservoir Inflow <br />APR -JUL <br />121 <br />150 <br />{ 170 102 <br />{ <br />191 <br />221 <br />167 <br />Green Mountain Reservoir inflow <br />APR -JUL <br />254 <br />281 <br />{ 300 107 <br />{ <br />320 <br />349 <br />280 <br />Muddy Creek blw Wolford Mtn. Resv. <br />APR -JUL <br />34 <br />44 <br />52 87 <br />{ <br />62 <br />79 <br />60 <br />Eagle River blw Gypsum <br />APR -JUL <br />207 <br />251 <br />{ 285 85 r <br />{ <br />324 <br />392 <br />335 <br />Colorado River nr Dotsero <br />APR -JUL <br />930 <br />1210 <br />{ 1400 97 <br />{ <br />1590 <br />1870 <br />1440 <br />Ruedi Reservoir Inflow <br />APR -JUL <br />84 <br />101 <br />{ 115 82 <br />{ <br />130 <br />157 <br />141 <br />Roaring Fork at Glenwood Springs <br />APR -JUL <br />409 <br />490 <br />{ 550 78 <br />{ <br />613 <br />712 <br />710 <br />Colorado River nr Cameo <br />APR -JUL <br />1420 <br />1850 <br />{ 2150 89 <br />{ <br />2450 <br />2880 <br />2420 <br />UPPER COLORADO RIVER BASIN <br />UPPER COLORADO RIVER <br />BASIN <br />Reservoir Storage (1000 <br />AF) - End <br />of March <br />{ Watershed Snowpack Analysis <br />- April <br />1, 2003 <br />- <br />Usable ( <br />* ** Usable Storage <br />* ** { <br />Number <br />This <br />Year as % of <br />Reservoir <br />Capacity{ <br />This <br />Last <br />{ <br />Watershed <br />of <br />Year <br />Year <br />Avg <br />Data Sites Last <br />Yr Average <br />DILLON <br />250.8 <br />120.8 <br />194.9 <br />214.5 <br />- - - - --- -- <br />{ BLUE RIVER BASIN <br />- ------ <br />8 <br />165 <br />113 <br />LAKE GRANBY <br />465.6 <br />15.4 <br />167.6 <br />263.7 <br />{ <br />{ UPPER COLORADO RIVER <br />BASI 33 <br />169 <br />108 <br />GREEN MOUNTAIN <br />139.0 <br />29.4 <br />64.8 <br />59.8 <br />{ <br />{ MUDDY CREEK BASIN <br />{ <br />4 <br />137 <br />92 <br />HOMESTAKE <br />43.0 <br />17.0 <br />25.0 <br />22.5 .{ <br />PLATEAU CREEK BASIN <br />2 <br />160 <br />85 <br />RUEDI <br />102.0 <br />46.1 <br />62.5 <br />61.9 <br />s <br />{ ROARING FORK BASIN. <br />7 <br />133 <br />85 <br />VEGA <br />32.0 <br />5.1 <br />10.2 <br />13.1 <br />f <br />{ WILLIAMS FORK BASIN <br />4 <br />183 <br />113 <br />WILLIAMS FORK <br />96.8 <br />7.7 <br />53.4 <br />54.8 <br />{ <br />{ WILLOW CREEK BASIN <br />{ <br />4 <br />191 <br />122 <br />WILLOW CREEK <br />9.0 <br />7.5 <br />7.1 <br />6.8 <br />{ TOTAL COLORADO RIVER <br />{ <br />BASI 42 <br />161 <br />101 <br />* 90 %, 70 %, 30%, and 10% chances <br />of exceeding <br />are the probabilities that the actual volume will <br />exceed the <br />volumes <br />in the table. <br />The average is computed for the 1971 <br />-2000 base <br />period. <br />(1) - The values listed under the <br />10* and 90% <br />Chance of <br />Exceeding <br />are actually 5% and 95W exceedance levels. <br />(2) - The value is natural volume <br />- actual volume may be <br />affected <br />by upstream water management. <br />