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~~==========================~====~======~===================~================-===============================-===~=============~== SAN MIGUEL, DOLORES, ANIMAS, AND SAN JUAN RIVER BASINS Streamflow forecasts February 1, 2000 =========~====================~==============~=~===~======================================================================~~====== <<====== Drier ------ Future Condltions Wetter =====>;. Forecast Point Forecast -------------------- Chance Of Exceeding ---------------------- -------------------- ---------------------- Period '" 70. 50. (Most Probable) 30. 10. 30-Yr Avg. (lOOOM) (lOOOM) (IOOOAP) " AVG. ) (lOOOM) (lOOOAP) (l000M') ====================================~=============================== ----------------------- ------------------------------------- ----------------------- ------------------------------------- Dolores R at Dolores APR-JUL S2 89 130 S3 171 236 246 McPhee Reservolr inflow APR-JUL 59 98 145 51 192 266 283 San Miguel River nr Placerville APR-JUL 27 57 ao 66 103 133 122 Gurley Reservoir Intake APR-JUL ... 7.' 11.0 60 14.1 18.6 1B.2 APRIL 1.20 60 2.00 MAY 6.50 7. 8.80 JUNE 2.80 " 5.76 JULY 0.50 31 1. 64 Cone Reservoir Intake APR-JUL 1.02 1.48 1.90 5' 2.45 3.55 3.23 APRIL 0.20 53 0.38 MAY 1.00 SB 1.72 JUNE 0.60 66 0.91 JULY 0.10 46 0.22 Lilylands Reservoir Intake APR-JUL 0.67 0.90 1. 70 61 2.50 3.68 2.79 APRIL 0.20 56 0.36 MAY 0.80 71 1.12 JUNE 0.60 56 1.07 JULY 0.10 42 0.24 Rio Blanco at Blanco Diversion APR-JUL B.6 12.3 20 37 30 'S 5. Navajo River at 050 Diversion APR-JUL 7.B 12.4 20 31 33 Sl 65 San Juan River nr Carracus APR-JUL 57 107 150 39 200 288 382 Piedra River nr Arboles APR-JUL 31 'S ao 37 11S 166 219 Vallecito Reservoir Inflo.... APR-JUL 36 5B BS 43 112 1Sl 196 Navajo Reservoir Inflow APR-JUL 91 11S 2S0 32 38S SB4 772 Animas River at Durango APR-JUL 72 116 180 43 244 338 '18 Lemon Reservoir Inflow APR-JUL 7_B 15.2 2S 44 3S " 57 La Plata River at Hesperus APR-JUL 2.' 3.6 B.O 33 12.4 18.8 24 Mancos River nr Mancos APR-JUL S.6 B.' 14.0 35 22 3S 40 APRIL 2.90 50 5.80 MAY 7.0 44 15.9 JUNE 3.' 2S 13.7 JULY 0.70 15 4.60 ---------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------- SAN MIGUEL, DOLORES, ANIMAS, AND SAN JUAN RIVER BASINS Reservoir Storage (1000 AF) End of January I SAN MIGUEL, DOLORES, ANIMAS, AND SAN JUAN RIVER BASINS Watershed Snowpack Analysis - February 1, 2000 ---------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------- Reservoir . Usable I Capacity ... Usable Storage This Last Year Year Avg Watershed Number of Data Sites This Year as % of Last Yr Average ------------------------------------------------------------------------ --------------------------------------------------------- ---------------------------------------------- ------------------------- -----------------------------------.--------------------- GROUNDHOG 21 .7 16.3 16. 3 10.4 ANIMAS RIVER BASIN 10 39 32 JACKSON GULCH 10. 0 7.0 5 .S '.5 DOLORES RIVER BASIN 6 70 56 LEMON 40. 0 )0.1 16 ., 19.5 SAN MIGUEL RIVER BASIN 5 81 6B MCPHEE 381 .2 322.3 266. 0 301. 0 SAN JUAN RIVER BASIN 3 22 23 NARRAGUINNEP 19 .0 18.6 17 .B 11.4 TOTAL SAN MIGUEL, DOLORES 23 4B 41 VALLECIT{) 126 .0 71.5 75. 0 5).6 AN JUAN RIVER BASINS ---------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------- . 90%, 70%, 30%, and 10% chances of exceeding a~e the prObabilities that the actual volume w11l exceed the volumes in the table. The average 15 computed for the 1961-1990 base period. (1) The values Ilsted 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.