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----------------------------------------------------------~----------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------------------------------~----- YAMPA, WHITE. AND NORTH PLATTE RIVER BASINS Streamflow Forecasts - February 1, 2000 Forecast POint ===============~==========~~===~====================================================~============================================= Forecast Period <<====== Drier ====== Future Condit1ons 90% (lOOOM) 70' (lOOOAE") ===============================~==============~=~=================== North Platte River nr Northgate APR~SEP 88 1S5 Laramie River nr Woods lI.PR-SEP 21 60 Yampa R abv Stagecoach Re, lI.PR-JUL 11.6 19.0 Yampa River at Steamboat Springs lI.PR-JUL 158 202 Elk River nr Milner lI.PR-JUL 1S8 210 Elkhead Creek nr Elkhead lI.PR-JUL 16.4 24 ELKHEAD CREEK blw Maynard Gulch APR-JUL 21 38 Fortification Ck nr E"ortification HAR-JUN 2 .36 4.82 Yampa River nr Maybell APR-JUL S11 667 Little Snake River nr Slater lI.PR-JUL 76 " LI'M'LE SNAKE R nr Dixon lI.PR-JUL 119 191 LI'M'LE SNAKE R nr Lily APR-JUL 130 20. White River nr Meeker APR~JUL 144 180 Chance Of Exceeding 50' (Most Probable) (lOOOM) " AVG. ) --------------~-------- ------~-~-------------- 200 74 B7 64 24 71 23S 86 250 83 30 77 SO 85 6 .SO 77 800 8S 11S 74 240 73 2SS 71 210 7S Wetter =====>> -------------~-~~----~ -~-------------------- 30' 10' 30-Yr Avg. (lOOOM) (lOOOAF) (lOOOM) --------------------------~---------- ---------~-------~~--~--------------- 245 312 271 11. 153 135 29 36 34 268 317 273 293 363 300 '1 38 55 39 l 62 79 S9 ; 8 .18 10.64 8 .50 933 1089 947 133 162 155 289 361 329 306 380 3S8 24. 306 279 YAHPA, WHITE, AND NORTH PLATTE RIVER BASINS Reservoir Storage (1000 AF) End of January ~-~----~~~-----~---------------~--------------------------~~------------------------~---------------------------------~----------- ----------------------------~-------------------------------------------------------------------------------~--------------------- YAMPA, WHITE, AND NORTH PLATTE RIVER BASINS Watershed Snowpack Analysis - February I, 2000 Reservoir Usable I Capacity *** Usable Storage This Last Year Year Avg -------------------------~~-------------------~~~--------------------------------------------------~------------------------------ ~---------------~-~---------------~------------------------------------~--------------------~------------------------------------- Average Watershed This Year as % of Number of Data Sltes Last Yr -----------------------------~~----------------------------------------- -----------~~~-~-----------------------~~~--------------- --------------------------------------- ----------------------- -----------------------------------~--------------------- STAGECOACH 33. 3 28 .9 29. S 26. 7 [.ARAMIE RIVER BASIN 3 70 74 YAMCOLO 9. 8 .2 7 .S 5 .6 NORTH PLATTE RIVER BASIN 6 9S 90 TOTAL NORTH PLATTE BASIN 8 86 86 ELK RIVER BASIN 2 86 79 YAMPA RIVER BASIN 11 101 91 WHITE RIVER BASIN 5 94 82 TOTAL YAMPA AND WH I TE RIV 16 98 88 LITTLE SNAKE RIVER BASIN 8 86 79 The average is computed for the 1961-1990 base period. ===========================~===~=======================================================================~====~===================== * 90%, 70\, 30\, and 10% chances of exceeding are the probabllities that the actual volume will exceed the volumes in the table. (1) The values listed under the 10% and 90% Chance of Exceeding are actually 5\ and 95% exceedance levels. (2) - The value lS natural volume ~ actual volume may be affected by upstream water management.