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i <br /> RIO GRANDE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of +0.7 indicates that for December R I O GRANDE BASIN <br /> Sir Waiter Soap 1y InEsx Nlstory <br /> the basin water supplies were near normal. The Soil 5 <br /> Conservation Service reports December 31 snowpack at 104% , <br /> of normal. Storage in Platoro, Rio Grande, and Santa Maria <br /> reservoirs totaled 93% of normal on December 31. The • <br /> 3 rr <br /> National Weather Service reports December precipitation as 2 i ji 1 'T <br /> 153% of normal. The month of December brought winter to <br /> the San Luis Valley for good as several snowstorms hit the i a ■OP , , 4, <br /> area. Alamosa received 5 inches of snow on the 4th-5th and -, I I M'", •' <br /> 3 inches on the 29th, as well as several smaller snowfalls . <br /> throughout the month. The temperatures for December were o11 <br /> -� <br /> also very winter-like. The average temperature for the month "3 <br /> was 6.7 degrees, which is 11.3 degrees below the normal -JMW ,4 JAN65 J.N56 J Mp7 JAN96 JAN99 JAN90 JAN91 JAN132 JAN93 <br /> average for December. The lowest temperature recorded in YEAFV3ON114 <br /> Alamosa for the month was 27 degrees below zero on the <br /> 20th. Also, there were only 5 days in which the high <br /> temperature was above freezing. <br /> Outlook RIO GRANDE NR. DELNORTE <br /> The snowpack in the mountains surrounding the San 170 FLOW BY rATs+YEAR <br /> 1130 <br /> Luis Valley is near normal basinwide as of the end of <br /> 150 <br /> December. The snowpack in the San Juan Mountains to the 140 <br /> west is slightly below normal while the snowpack in the .J ,30 <br /> 0 1 1111.M.'— <br /> Sangre de Cristo Mountains to the east is slightly above in 1,G <br /> normal. The reservoir storage in the basin is still below ill <br /> f 150 <br /> normal at this time, although most of the reservoirs are 40 <br /> storing as much of their inflow as they can. F�' 7° <br /> 50 <br /> Administrative/Management Concerns .° <br /> The management aspect of the rivers and streams o <br /> decreases dramatically in the wintertime. The reservoirs are 1° <br /> allowed to store most, if not all, of their inflow and there are °"MONTH <br /> JanMoran <br /> 0 WET no diversions occurring on the rivers at this time. The (1aa7) o oar 1377) ` AVG x 111113 <br /> average flow on the Rio Grande near Del Norte for the month <br /> of December was 156 cubic feet per second and the average <br /> flow on the Conejos River near Mogote was 44 cubic feet per "—" <br /> second. REPRESENTATIVE RESERVOIRS <br /> RIO GaMOE 9A51N <br /> 26 <br /> Public Use Impacts *,- <br /> Winter is producing much needed snow in the high - <br /> 20- <br /> country right now. This provides a base for many winter i 16- <br /> related activities such as snowmobiling, sledding, and skiing. 1 16- <br /> This snow will also provide for many exciting and fun 1,- / <br /> summertime activities when it melts and runs down the rivers n' 12-✓// <br /> and streams of the basin. '° / <br /> i a ////^\\\\ r <br /> 4 <br /> 2 <br /> a 1 o Grande Platoro SarttsMr la <br /> ® Avp. 12131 Contents ® 12,31/92 Contents <br /> 5 <br />