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I <br /> GUNNISON BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of+3.5 indicates that for May the basin GUNNISON RIVER BASIN <br /> water supplies were well above normal. The Soil Conservation s Surface water Supply ndex History <br /> Service reports May 31 snowpack at 180% of normal. Storage in '- <br /> Taylor Park, Crawford, and Fruitland reservoirs totaled 97% of <br /> I. <br /> normal on May 31. The National Weather Service reports May 3 ," ,. :- <br /> precipitation at 139% of normal. Flow at the gaging station - 1 <br /> Uncompahgre River near Ridgway averaged 507 cfs as compared 1 1 - '�" <br /> to the 1961-1991 May average of 316 cfs. A o ) f. <br /> The snowpack remains very high for this time of year. - ii- :=� - ' % ' <br /> Areas with the highest snowpack are Grand Mesa and the Crested '% -r r <br /> Butte area. Most of the snow below 9,000-10,000 feet has melted, a 1 <br /> in <br /> however a significant amount remains above 10,000 feet in <br /> elevation. It appears that streams fed mostly by high elevations -4 l <br /> JAN84 JAN85 JAN86 JAN87 JANB8 JANB9 JAN90 JAN91 JAN92 JAN93 <br /> have not yet peaked for the year. There remains some concern MONTH/YEAR <br /> that such streams may yet have a flooding potential, although that <br /> is highly dependent upon the weather. The snowpack is coming <br /> off nicely so far, with only a few localized problems resulting <br /> from high water. The snow atop Grand Mesa appears to be losing <br /> about 5 inches of water per week during the first part of June. UNCOMPAHGRE RIVER NR. R I DGWAY <br /> FLOW BY WATER YEAR <br /> Data for the past two months is shown below: 200 <br /> 190 <br /> 180 / <br /> 4-30-93 4-30-93 5-31-93 5-31-93 10 <br /> 160 <br /> Inches Inches Inches Inches 150 <br /> i 140 <br /> Site Elev. of Snow of Water of Snow of Water 130 <br /> in 120 <br /> Shaw Pasture 8320 22.0 11.0 0 0 ;� 110 h----e <br /> Cole#5 Res. 8800 42.0 20.3 0 0 WLL g 190 <br /> so <br /> Marcott Res. 9600 87.6 42.8 43.4 23.3 s v 70 - <br /> Leon Lake 10400 116.3 52.5 71.0 39.2 50 r�� <br /> Park Res. 10000 99.0 45.5 56.2 30.5 30 <br /> 20 <br /> 10 <br /> O <br /> Oct Nov Doc Jan Fob March April May Junco July Aug Sept <br /> MONTH <br /> O WET C1984) O DRY C1977J p AVG X 19. <br /> REPRESENTATIVE RESERVOIRS <br /> 70 GUNNISON RIVER BASIN <br /> 60 N <br /> 50 <br /> i <br /> c 40 <br /> a- <br /> ., , <br /> BD <br /> ne <br /> 20 <br /> 10 j N <br /> / . \ <br /> 0 <br /> , \\ <br /> Taylor Park Crawford Fruitland <br /> ® Avg. 5/31 Contents ILLI 5/31/93 Contents <br /> 6 <br />