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4 ` GUNIlIIISON BASIN August, 1998 4 Basinwide Conditions Assessment: The SWSI value of 0.5 indicates that for July the basin GUNN I SON RIVER BASIN water supplies were near normal. Flow at the gaging station s Surface Water Supply Index History . Uncompahgre River near Ridgway averaged 320 cfs as 4- compared to the long term average of 338 cfs. Storage in � 3 Taylor Park,Crawford,and Fruitland reservoirs totaled 96%of ..4Y :Ii , - normal as of the end of July. 2- . i , *.:C -..-. .='-', -- I The rain in the last half of July really boosted the 5 -=�- water supplies. Stream flows are now above normal. 1 . )1'14' : .,, n D 4.)" ' ir ,1... ....... ,H Outlook Stream flows are expected to remain above normal 1 1 through the rest of the summer. -3 , JAN89 JAN00 JAN91 JAN92 JAN23 JAN94 JAN95 JAN3 JANG7 JAWS Administrative/Management Concerns MONTWYw Several areas were on the verge of shortages in July, but rains came, stream flows increased, and users were not required to curtail usage of their junior water rights. This happened on the San Miguel and Uncompahgre Rivers, and both remain without a river call. ' UNCOMPAHGRE RIVER NR. R I DGWAY Ridgway Reservoir was just starting to release stored 200 FLOW srWATER YEAR 20 1 100 water when the rains came. The reservoir actually refilled and has stayed full since. Blue Mesa Reservoir appears to ;60 " + have peaked at 15 feet below the spillway. ,;0 130 n 120 Public Use Impacts # 110 - Farmers and ranchers were very relieved to have the g loci -- ao July rains. They are saying, however, that they would like - some dry weather in August and September to put up hay and i T. get crops harvested. 4 :"1 ----.P 30 ��..� 20 o i� 4 Oct May Dec Jan Feb March April Ib Jun. July Aug Sept WPM 0 WET(1964) O DRY C1977) A AUG x 1900 REPRESENTATIVE RESERVOIRS 100 Gl44lBON RIVER BASIN 30 J• 470-7\\ V" so A. 1a op OL 6i v 40/A • '� 30 g 20.../.\\ 10 0 // \ M\1 f'////r\\N' Taylor Park CrMord Fruitland ® Avg. 7/31 Content. ® 7/3VI0 Content, 6