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.======..........=.===..========.=..===...............................................c..........._==.......=.....=....=.~=.......= YAMPA, WHITE, AND NORTH PLATTE RIVER BASINS Streamflow Forecasts - June 1, 2004 .................................................__......._.......~..=..............._.......==__._...........__._.____.=...S..__.'. I <<...... Drier ...... Future Conditions Wetter _.::a..>> I Forecast Point Forecast I ...=.............=::a. Chance Of Exceeding * ..c...........===..... Period I 90% 70% 50% (Most Probable) 30% 10% 30-Yr Avg. I (lOOOAF) (lOOOAF) I (lOOOAF) (% AVG.) (lOOOAF) (lOOOAF) (lOOOAF) ==a=.a.a=.=........_==._.====__......==_=......_......===...........1....===.........=...... =...a....._....._......__............ NORTH PLATTE RIVER nr Northgate JUN-SEP 20 40 1 53 33 66 86 159 1 LARAMIE RIVER nr Woods JUN-SEP 14.8 32 1 44 49 56 73 89 1 Yampa R abv Stagecoach Res APR-JUL 9.9 11.3 1 13.0 45 18.6 25 29 I Yampa River at Steamboat Springs APR-JUL 126 140 I 155 55 169 194 280 I Elk River nr Milner APR-JUL 163 179 I 190 59 209 239 325 I Elkhead Creek nr Elkhead APR-JUL 11.2 13.8 I 16.0 41 18.5 23 39 I ELKHEAD CREEK blw Maynard Gulch APR-JUL 30 31 32 54 39 49 59 Fortification Ck nr Fortification MAR-JUN 3.00 3.10 3.30 44 4.30 5.90 7.50 Yampa River nr Maybell APR-JUL 395 460 525 53 590 685 990 Little Snake River nr Slater APR-JUL 64 74 88 55 103 128 159 LITTLE SNAKE R nr Dixon APR-JUL 116 133 175 53 218 278 330 LITTLE SNAKE R nr Lily APR-JUL 120 136 180 49 223 288 365 White River nr Meeker APR-JUL 131 142 160 55 180 213 290 ...............................==................................... ............................................................. YAMPA, WHITE, AND NORTH PLATTE RIVER BASINS Reservoir Storage (1000 AF) - End of May YAMPA, WHITE, AND NORTH PLATTE RIVER BASINS Watershed Snowpack Analysis - June 1, 2004 =...=.~......a.....=a.~=.~=.._......_..c.=..............................._-.=.=........_...................~...................... YAMCOLO Usable I *** Usable Storage *** Number This Year as % of Capacity I This Last Watershed of ................. , I Year Year Avg 1 Data Sites Last Yr Average ..........................=.=..............-............................1=.==...===..............==.......==...................... STAGECOACH 33.3 27.7 33.0 29.9 I, LARAMIE RIVER BASIN 2 37 24 1 7.7 1 I I I I I I I 1 1 1 1 I 9.1 7.0 5.9 NORTH PLATTE RIVER BASIN 7 123 44 R~servoir TOTAL NORTH PLATTE BASIN 9 100 40 ELK RIVER BASIN 2 o o YAMPA RIVER BASIN 9 151 31 WHITE RIVER BASIN 4 75 52 TOT"L YAMPA AND WHITE RIV 12 129 36 LITTLE SNAKE RIVER BASIN 6 75 48 ==...........=.=.=.....=_.~...=_..............................................=........0.......................a............~..... * 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% exaeedance levels. (2) - The value is natural volume - actual volume may be affected by upstream water management.