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r <br /> RIO GRANDE BASIN <br /> , <br /> Basinwide Conditions Assessment: <br /> The SWSI value of -3.7 indicates that for November RIO GRANDE BASIN <br /> the basin water supplies were well below near normal. The s Slreace Water supply Index HIctory <br /> Natural Resources Conservation Service reports December 1 4- <br /> snowpack as 21% of normal. The National Weather Service - 3- , , <br /> reports basin precipitation as 44% of normal during the . 7 ' = <br /> month. Flow at the gaging station Rio Grande near Del Norte 2 = • <br /> Y <br /> averaged 233 cfs, as compared to the 1961-1993 average of ! ....... - <br /> ,- <br /> 263 cfs. The Conejos River near Mogote had a mean flow of g a - i� J j "�' .,4,,r�^ <br /> 73 cfs. Storage in Platoro, Rio Grande, and Santa Maria _,_ <br /> reservoirs totaled 260%of normal as of the end of November. _ ' .1 f- Z <br /> The average temperature in Alamosa was 32.5°, 2.6° above o -2 <br /> normal. Alamosa received 0.20 inches of precipitation during _3- <br /> the month, 0.23 inches below normal. -4 , .......... ... <br /> JANBB JAN87 JAN88 JAN89 JAN90 JAN91 JAN92 JAN93 JAN44 JAN95 <br /> Stream flow in the basin was below historic averages. YEAR/MONTH <br /> Fall-like conditions prevailed throughout the San Luis valley <br /> during November. <br /> Outlook <br /> Soil moisture levels dropped due to unseasonably RIO GRANDE NR. DELNORTE <br /> warm temperatures and dry, windy conditions. Without 97D FLOW BY WATER YEAR <br /> significant precipitation, stream flows can be expected to 1 <br /> 80 <br /> 150 <br /> remain below normal. However, reservoir storage continues 140 <br /> to be above average. "0 <br /> i <br /> 120 <br /> Administrative/Management Concerns ;i ,DO <br /> Water users began taking water under their recharge w g <br /> ga <br /> decrees on November 1. These users took advantage of the 70 <br /> mild weather conditions and diverted for a longer period than I GO l;� <br /> in previous years. This practice helps the aquifer to recover 50 0 <br /> 40 <br /> from a season of well pumping for irrigation needs. 30 <br /> 20 <br /> Oct Nov Dec Jan Feb March <br /> Public Use Impacts .DNT. <br /> Snowfall in the higher elevations continues to be well ° "E`"907) it oR> (1977) a AVG x 1995 <br /> behind normal. Conditions at local ski areas reflect this. <br /> REPRESENTATIVE RESERVOIRS <br /> Rio Grande Begin <br /> 50 <br /> 45- \\\\ <br /> V. 35- <br /> tn 30- <br /> n <br /> F <br /> 23 25 <br /> N k, 20- ///////// <br /> 5 /-\\ r/N <br /> Rio Grande Platoro Senta4Yr la <br /> LLB Avg 11/30 Content. 17711/30/95 Contents <br /> 5 <br />