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. <br /> RIO GRANDE BASIN 12/1996 <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 3.1 indicates that for November the RIO GRANDE BASIN <br /> )asin water supplies were above normal. Flow at the gaging S Surface later Sipp,y Index History <br /> station Rio Grande near Del Norte averaged 234 cfs, as 4_ <br /> compared to the long term average of 263 cfs. The Conejos 3_ - <br /> River near Mogote had a mean flow of 61 cfs. Storage in .� 1. -L <br /> Platoro,Rio Grande, and Santa Maria reservoirs totaled 117% 2- - 7 t <br /> of normal as of the end of November. I 1- ' <br /> Alamosa received 0.22 inches of precipitation during i ° j �,, ti4 ti �,�-n <br /> the month, 0.21 inches below normal. Temperatures ranged _,_ ,' t ; <br /> from 2° to 63° in Alamosa where the average monthly <br /> temperature was 31.6°, 1.7° above normal. <br /> -3- t <br /> Outlook 4 <br /> JAN67 JAN66 JAN69 JAN90 JAN91 JAN92 JAN93 JAN94 JAN95 JAN96 <br /> The early season snowpack is promising. However, YFAR,MONTN <br /> flows at gaging stations in the upper Rio Grande basin were <br /> still below average during November. This continues the <br /> _ trend of lower than normal stream flow begun in the fall of <br /> 1995. <br /> RIO GRANDE NR. DELNORTE <br /> Administrative/Management Concerns 170 <br /> FLOW NY WATER YEAR <br /> On November 1, the recharge decrees in the basin 160 <br /> 150 <br /> took effect. Approximately 16,000 acre-feet of water were run 140 <br /> down six major ditches during the month. These decrees / 13° <br /> allow a great deal of water to be legally recharged into the 120 <br /> iry 11G <br /> unconfined aquifer each year. Many farmers and ranchers „.1 1GG <br /> relied heavily on underground supplies this past year as W? �° <br /> surface water supplies were well below average. Recharge s" o <br /> hastens the recovery process of the aquifer. 1 6° _�/K11+------ <br /> 5° <br /> 40 <br /> Public Use Impacts 3° . <br /> Normal winter time activities are in full swing in.the 20 <br /> Oct Nov D.0 Jan Feb Perch <br /> San Luis Valley and the surrounding mountains. NINTH <br /> CI WET C1667) O DRY(1977) 9 AVG N 1196 <br /> REPRESENTATIVE RESERVOIRS <br /> Rio Grand.Basin <br /> 22 <br /> 29 <br /> - 19- j <br /> \16 <br /> 4 <br /> t14- <br /> /i <br /> 1 i /\ <br /> �i <br /> yyr <br /> 4 <br /> V , <br /> Rio Grand. Platoro SantWari. <br /> ® Avg. 11/30 Contents ® 11/36/96 content. <br /> 5 <br />