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===~=--==========-=----==-=========================~=========-=============---=========-===============~========================= SOUTH PLATTE RIVER BASIN Streamflow Fo~ecasts - March 1, 2000 "o~ecast POInt forecast I Pen.od ----===============================================---=-======-=-=-======-====-=-=====-==-======-========-==--====-============= 30-Yr Avg. (lOOOM) -------------------------------------- ----------------------- ------------------------------------- -- - --==========~=--====-=---- --- ------------------------------- ----------------------- --------------------------- --------- .ntero Reservoi r inflow ~pinney MountaIn Reservoir Inflow :levenmile Canyon ReserVOIr Inflow :heesman Lake inflow ;outh platte River at South platte lear Creek at Morrison :lear Creek at Golden ~t. vrain Creek at Lyons ioulder Creek nr Orodell ;outh Boulder Creek nr Eldorado Sp~i 31g Thompson River at mouth nr Drake :~~he La poudre at Canyon Mouth APR-JljL APR-JUL APR-JUL APR-JUL APR-SEP APR-SEP APR-SEP APR-SEP APR-SEP APR-SEP APR-SEP APR-SEP <<====== DrIer ====== Future CondItions Wetter =====~~ ==================== Chance Of Exceeding . ====================== 90% 70% 50% (Most Probable) 30% 10% 1l000M'} (lOOOAF) (lOOOAP) (% AVG.) (lOOOAF) (lOOOAF) 4.1 18.8 16.9 47 100 12.5 78 46 35 " 87 139 5.9 25 25 58 147 19.3 103 60 44 36 10. 220 7.5 31 31 68 180 24 120 70 50 45 115 275 64 B2 82 81 85 80 94 90 96 100 101 97 9.6 3B 37 79 213 29 137 BO 56 54 126 330 11.7 38 3B 84 213 30 128 78 52 45 11. 284 II I 13 .8 51 45 99 260 36 162 9S 65 66 143 .11 --------- ----- -------- ---------------------------------- ----------- ------------------------ ----- ---------------- ------ ------ ------- ---- --------------- ------------- --------- -------------------------------- --------------------------- SOUTH PLATTE RIVER BASIN Watershed Snowpack Analysis March 1, 2000 SOUTH PLATTE RIVER BASIN ReserVOIr Storage (l000 AF') - End of fepruary --------------- ----------------- ---------------- ----- ----- ------------- ------------------ --------------------- '\eservoir Usable I CapaCIty ------------------------------------------------------------- --------- ----- ------------------------------------------------ Last Yr Nurnbe~ of Data Sites This Year as % of .,. Usable Storage This Last Year Year Avg ----------------- ----------------- \.'la tershed Average -------------------- ---------------------------- ------------------ ---------------------------------------------- ---- --- ----------------- ----------------------------- ---------------- ---------------------------- ------------ ~TERO 20. 0 20. 0 20. 0 15 .0 8IG THOMPSON BASIN 6 93 90 3ARR LAKE 32. 0 27 .3 26 .. 24. , BOULDER CREEK BASIN 5 129 9B 3LACK HOLLOW B. 0 3. 0 .5 . .0 CACHE LA POUDRE BAS IN 8 100 94 30YD LAKE 49 .0 42. 7 38 .6 33 .8 CLEAR CREEK BASIN 4 115 92 :ACHE LA POUDRE 10. 0 8 .0 9. 5 7 .6 SAINT VAAIN BASIN 3 141 101 :ARTER 108. 9 90. 6 63 .6 90. 8 UPPER SOUTH PLATTE BASIN 17 100 78 :HAMBERS LAKE 9. 0 5. 5 5 .0 3. , TOTAL SOUTH PLATTE BASIN 41 109 91 :HCESMAN 79 .0 62. 2 47. 6 S5. S :088 LAKE 34. 0 17. S 15. 0 13 .9 ELEVEN MILE 97. B 99 .0 99. 7 51 .0 EMPIRE 38 .0 32. 5 24.. 5 26 . 3 FOSSIL CREEK 12 .0 5 .0 8 .5 7 ., GROSS 41 .8 36 9 27 .. 25 .7 HALLIGAN 6. . 6. . 6. 0 . .5 HORSECREEK 16. 0 13. 0 13 9 13 .2 HOR5ETOOTH 149. 7 115. 2 78. 2 100 .7 JACKSON 35. 0 21. 3 19 .7 30 .5 JULESBURG " .0 14. 9 16 .1 20 1 LAKE LOVELAND 14 .0 10. 8 11 3 8 .B LONE TREE 9. 0 8. 1 B .5 6 .2 MARIANO 6. 0 4 .5 5 .3 . .6 MARSHALL 10.0 B. 2 6 .7 . .5 MARSTON 13.0 6. 7 10. 9 6. 9 MILTON 24.0 19. 6 18. 7 14 .B POIN1' OF ROCKS 70.0 66. 6 65 .3 62 .5 PRB'HTT 33.0 16. 2 22 .3 19. 5 RIVERS IDE 63.1 51. 5 44 .1 47 .6 SPINNEY MOUNTAIN 48.7 37 .0 27 .3 33 .J STANDLEY 42.0 '0. 0 37 .7 26 .6 TERRY LAKE B.O 5. 5 5 .5 5 .. UNION 13.0 11 .9 11 .2 10 .6 WINDSOR 19.0 12 .5 12 .5 11 .0 =========~---====-==----=====-==--=============-=======-=======-=-=========-====-=======-=======-========--======--====--=-------- * 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 1961-1990 base period. (1) The values listed under the 10% and 90% Chance of Exceeding are actually 5% and 95% exceedance levels. {~l _ The value is natu~al volume - actual volume may be affected by upstream water management.