DWR_4151890 - Laserfiche WebLink

M " COLORADO BASIN ' Basinwide Conditions Assessment: The SWSI value of-0.6 indicates that for March the COLORADO RIVER BASIN asin water supplies were sightly below normal. The Soil s Surface Water Supply ^max Hldory Conservation Service reports March 31 snowpack at 88% of 4- . normal. Storage in Green Mountain, Ruedi, and Williams ' Fork reservoirs totaled 123% of normal on March 31. The _ - National Weather Service reports basin precipitation as 55% 2 )� of normal during March. Flow at the gaging station Colorado * �; River near Dotsero averaged 1,147 cfs as compared to the g 0 -',— �f_-.0 1 '81`�� _- 1961-1993 March average of 1,088 efs. .- -� /'. �. l Y J l 2- r . Outlook 0 Since the month of March was so dry,the outlook has 3 dimmed considerably. However, several large storms in the -4 , JAMBS JANB6 JANB7 JANBB JANB9 JAN90 JAN91 JAN92 JAN93 JAN94 first part of April have helped the snowpack greatly. Base M3NTH/YEAR flows of area streams have remained close to normal. Administrative/Management Concerns The 1,250 cfs call of 1-17-1902 for the senior right at ' the Shoshone Hydroelectric Power Plant was reinstated on COLORADO RIVER NR. DOTSERO April 1. It had been off from January through March for 700 FLOW BY WATER YEAR maintenance on the generating turbines. The flow in the Colorado River near Palisade was almost low enough in the MO first part of April to necessitate a "Cameo" call (4-26-1914). I s00 This call involves the Government Highline Canal and the Grand Valley Irrigation Canal. It is still possible that the call of 406 might be initiated for a short time in April. Since the Roaring W g 300 . 'ork Basin snowpack is below normal and the upper Colorado Liver Basin is near normal, the "Cameo" calls will likely 5 200 control the river during the late summer and fall months 10D including part of July and all of August, September, and October. 0 Oct boo Doc Ja. Feb Merck April MONTH Public Use Impacts Cl WET(1984) O DRY(1977) O AVG 0 1994 April is a critical month for determining snowpack amounts which will impact runoff volumes. The construction of Wolford Mountain Reservoir has picked up again and it will be a very busy summer for the contractors. Half of the REPRESENTATIVE RESERVOIRS foundation has been excavated and work has started on the 70 COLORA00 RIVER BASIN outlet structure. When that is finished, the river will be diverted through the outlet and the rest of the foundation will 60- be completed, and theembankment then built. Storage will d s0 Pg d probably start in 1995 t 40 r h£ 30 ;-_, /\ n i z0 10 X\ Green Mountain Ruodl Williams Fork V/I Avg 3/31 00068.t. Ls.11 3/31/94 Contents 7