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SAN JUAN/DOLORES/ANIMAS BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of -1.7 indicates that for February SAN JUAN/DOLORES/ANIMAS RIVER BASINS <br /> basin water supplies were below normal. The Natural s Surface Water Supply Index History <br /> Resources Conservation Service reports March 1 snowpack as 4_ <br /> 74%of normal. Flow at the gaging station Animas River near .. - - 1.Durango averaged 184 cfs as compared to the 1961-1993 • 3 ti' �� <br /> average of 211 cfs. Storage in McPhee,Vallecito, and Lemon 2- - ; `- E►- <br /> reservoirs totaled 121% of normal as of the end of February. i-Fli Flows in the La Plata River dropped to around 5.0 cfs g D iitri:TA\-Air��`, <br /> duringthe month, reachingone of the lower flow levels ever if <br /> il c <br /> -seen. Other rivers also showed very low base flows. ▪ 2_ , <br /> February began with a continuation of the drought of D t <br /> the previous several months. Durango received 1.23 inches of 3" <br /> moisture during February, only 80% of normal. Durango -4 t <br /> JAN97 JAN98 JAN89 JAN90 JAN91 JAN92 JAN93 JAN94 JAN9S JAN96 <br /> temperatures were very warm, averaging 5°above normal. It MONTwYEAR <br /> was very dry until the 19th when a series of storms entered <br /> the area bringing much needed precipitation to both the <br /> upper mountains and lower foothill and plateau areas. Basin <br /> administrators and water users are desiring more snow before <br /> the end of the season. ANIMAS RIVER NR. DURANGO <br /> FLOW BY WATER YEAR <br /> 190 <br /> 190 10 <br /> Public Use Impacts 170 <br /> Snowpack in the vicinity of the ski areas increased 160 <br /> 150 <br /> from around 50%to 65% of normal during the month which V 140 - <br /> greatly improved skiing conditions. 0 <br /> n <br /> ▪ 110 - <br /> o• 10 9 <br /> F a - <br /> � 9D <br /> 6D <br /> SD � <br /> 40 <br /> 30 <br /> 20 <br /> 10 <br /> Oct Nov Dee Jan Feb Perch <br /> ►CNTH <br /> O WET C1973) O DRY C1977) A AVG X 1496 <br /> REPRESENTATIVE RESERVOIRS <br /> DOLORES-ANIMAS BASINS <br /> 320 - <br /> 300- <br /> 280- <br /> 260 <br /> 260J/ <br /> i <br /> � E20 <br /> tn 200 <br /> 7,1 180 <br /> >�i 160 <br /> �? 140 <br /> N v <br /> a /20 <br /> a 100- <br /> a <br /> • 80 <br /> 6040 <br /> 0 r/N\ <br /> 20-/:///;\\'' \\\\\ <br /> v /„.\\.\\\ <br /> McPhee VallecIto LesOn <br /> ® AVO. 2/28 COntant• ® 2/29/96 Contents <br /> 9 <br />