DWR_4151888 - Laserfiche WebLink

SAN JUAN/DOLORES/ANIMAS BASIN • Basinwide Conditions Assessment: The SWSI value of 0.3 indicates that for May basin SAN JUAN/DOLORES/ANIMAS RIVER BASINS Sur,"'Water Supply ater supplies were normal. Storage in McPhee, Vallecito, History 5 and Lemon reservoirs totaled 126% of normal on May 31. 4— The National Weather Service reports basin precipitation as • 3— � 88% of normal during May. Flow at the gaging station I_ . . Animas River near Durango averaged 2,222 cfs as compared 2 -- - - •- to the 1961-1993 May average of 2,195 cfs. I-W _ May was characterized by surprisingly steady and high ' II�' ,. streams flows in the basin. The snow pack declined steadily - I�13 ri throughout the north, with most high elevation streams r 1_ experiencing peak flows around May 28. The Animas reached • 2 . a high of nearly 5,000 cfs. The La Plata exceeded 200 cfs 3- allowing one-half of May, a record period of time, to be free -4 I - T JAMBS JANB9 JAN07 JANBB JANB9 JAN90 JAN91 JAN92 JAN93 JAN94 from administration. Excellent runoff also was observed in MDNTFVYEAR the Dolores and Mancos River drainages. The continued high flows were due to the snow received in April. Ditches did not run as early as usual so the lack of demand was converted to storage. Reservoirs were able to fill in almost every location. ANIMAS RIVER NR. DURANGO Outlook FLOW BY WATER YEAR 1 Anticipations are for a continual decline in stream flow after the high snow comes off early in June and sheltered a snow areas gradually melt. June is normally a very dry month and it is expected that soil moisture will be heavily depleted. 1 .5 A.cn o LL— WS 1 V 0 0.3 0.2 �9 0.1 OCt Nov Deo Jan Feb MMrCn April Mey June July Aug Sept MONTH 0 WET(1973) o DRY(1977) A AVG x 1994 REPRESENTATIVE RESERVOIRS 0OL0RES-ANIMAS RIVER BASINS 400 350— MO 27 un 200 h▪2 a 150 100 / 50 WPM.. VaIleClto Lemon 17771 Aug 5/31 Content• ® 5/31/94 Contents 9