Laserfiche WebLink
r <br /> SAN JUAN/DOLORES/ANIMAS BASIN <br /> • <br /> Basinwide Conditions Assessment: <br /> While the SWSI value of-1.5 indicates that for May SAN JUAN/DOLORES/ANIMAS RIVER BASINS <br /> )asin water supplies were below normal, supplies actually S So-face Water Supply index Hlctory <br /> . <br /> appear adequate. Storage in McPhee, Vallecito, and Lemon 4_ <br /> reservoirs totaled 91% of normal on May 31. Flow at the - : , <br /> w 3- j <br /> gaging station Animas River near Durango averaged 1,629 cfs . : <br /> 2- '- A. <br /> as compared to the 1961-1993 May average of 2,195 cfs. The � <br /> National Weather Service computes basin precipitation as 1.1 1 J — "-`- rii : : = _ <br /> 203% of normal during the month. The Natural Resources =_ f fh; <br /> Conservation Service reports June 1 snowpack as 334% of ,- ,;�- { <br /> normal. /�" <br /> An unusual spring has developed out of an otherwise o : ,,i ; [ - <br /> normal winter with temperatures dropping off to well below 3- <br /> normal. The several fronts which came through the area not -4 • <br /> JAN86 JAN87 JAN88 JAN89 JAN90 JAN91 JAN92 JAN93 JAN94 JAN95 <br /> only cooled the weather but added to the snowpack. A June MONTH/YEAR <br /> 1st reading of the La Plata snow course found 8.5 inches of <br /> water where it would normally be dry. Snow still exists in the <br /> lower elevations. <br /> Reservoir storage was held very low in anticipation of <br /> filling in later weeks. The runoff continues to be delayed. ANIMAS RIVER NR. DURANGO <br /> FLOW BY WATER YEAR <br /> 1 <br /> Outlook ri.s .-----° <br /> The Animas River at Durango ran only 75%of normal o.e . <br /> flows during May. Very few rivers had peaked by the end of s , <br /> June. Expectations are for as much as 320%of normal runoff 4 D.6 <br /> from the 10,000 to 11,500 foot elevation level. ;o Jam'''?': <br /> am' <br /> O 0 5 <br /> m3 <br /> D 4 <br /> Public Use Impacts <br /> Flooding could occur if a very warm and sudden g D 3 <br /> increase in temperatures is experienced or rain falls on the 0,2 <br /> snow. Both of these events seem unlikely to basin D <br /> administrators. D <br /> Oct Nov Doc Jan Feb March Apr 11 May June July Aug Sept <br /> MDNTH <br /> ❑ WET C1973) O DRY C 1977) a AVG X 1995 <br /> REPRESENTATIVE RESERVOIRS <br /> • DOLORES-ANIMAS RIVER BA151 NS <br /> 320 1- <br /> 300/ <br /> 280 <br /> 260 <br /> 240 L 1eo <br /> o as 160 <br /> a <br /> ;.i 140- <br /> «r <br /> N <br /> e 120 <br /> n 100- FA <br /> 80 <br /> 40 <br /> 60 <br /> McPhee Val leoito Lemon <br /> V/I Avg. 5/31 Contents' ® 5/31/95 Content. <br /> 9 <br />