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Y <br /> SAN JUAN/DOLORES/ANIMAS BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of-1.7 indicates that for March basin SAN JUAN/DOLORES/ANIMAS RIVER BASINS <br /> ater supplies were below normal. The Soil Conservation s Surface Water Sum.), '°°°'""`orY <br /> Service reports March snow pack at 74% of normal. Storage 4 <br /> in McPhee, Vallecito, and Lemon reservoirs totaled 135% of - L ;• <br /> . <br /> normal on March 31. The National Weather Service reports 35.__: : .j . , . _ : 1_ <br /> basin precipitation as 48% of normal during March. Flow at 2 i ; M ' . - ---,- <br /> the gaging station Animas River near Durango averaged 232 4 1 -' IT`-- i , , <br /> cfs as compared to the 1961-1993 March average of 292 cfs. i o inn I it it 1 <br /> 1i' PR"I"! ,I i : 1+1 I <br /> March was marked by an unseasonably warm spell _,_ l; 1 <br /> averaging about 5° above normal. Snow conditions led to a 2- - w� J H <br /> early closures at ski resorts. Much of the lower elevation 1 ; ' : E <br /> snow melted and south facing slopes in the mountains were 3- <br /> cleared. This led, in some areas, to earlier than normal -4 i <br /> JANWE JAN89 JAN97 JAN88 JAN89 JAN90 JAN91 JAN92 JAN93 JAN94 <br /> increases in stream flow. The below normal precipitation NONTN/YFl.R <br /> contributed to keeping the snowpack below average. The <br /> Dolores area snowpack was the highest at about 77% of <br /> normal. Much of the snowpack which remained was densely <br /> packed at 35% moisture content. Soil moisture in the lower <br /> elevations was depleted and spring winds threatened to ANIMAS RIVER NR DURANGO <br /> further diminish water supplies. 240 FLOW BY WATER YEAR <br /> 220 - <br /> 200 <br /> , 180 <br /> 160 , <br /> i <br /> ^ 140 ----------- -------7/4, <br /> n <br /> s 3 120 <br /> LLg <br /> j u 100 <br /> r <br /> 80 <br /> 60 <br /> 40 <br /> 20 <br /> 0 <br /> Oct Nov Doc Jan Fah ►arch April <br /> MONTH <br /> a WET(1973) 0 OW C1977) p AVG X 1994 <br /> REPRESENTATIVE RESERVOIRS <br /> DOLORES-ANIMAS RIVER BASINS <br /> 140 <br /> 320- <br /> 300- <br /> 280- <br /> 260- <br /> F 240-/ <br /> u 220 <br /> .i 200 <br /> p <br /> 120 <br /> g 100 y/7\\\ <br /> 80 <br /> 60 /./7\ <br /> 40 <br /> 2 / l\ r <br /> / k'////\�\\\ <br /> 0 <br /> McPhee VallocIto Lemon <br /> ® Av9 3/31 Contents ® 3/31/94 Contents <br /> 9 <br />