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RIO GRANDE BASIN <br /> Basinwide Conditions Assessment: ' <br /> The SWSI value of 2.3 indicates that for January the RIO GRANDE BASIN <br /> basin water supplies were above normal. The Natural <br /> Resources Conservation Service reports February 1 snowpack Surface Water Supply Index History <br /> F 4 <br /> as 114%of normal. Storage in Platoro,Rio Grande,and Santa Maria reservoirs totaled 150%of normal on January 31. Flow <br /> at the gaging station Rio Grande near Del Norte averaged 198zcfs,as compared to the 1961-1993 January average of 168 cfs. 0 The Conejos River near Mogote had a mean flow of 57 cfs. o <br /> The National Weather Service computes basin precipitation as Ziiikriiiiori* <br /> 196% of normal during the month. Stream flow in the Rio - <br /> Grande at the State line was significantly above average --2 <br /> during January. Most upper basin streams had above average _-3 <br /> flows. cr <br /> Weather conditions in the San Luis Valley during ..N06 JANp7 JAMS JANOS YEAR/MONTHNS2 9' JAN94 <br /> JA <br /> January were much warmer than average. The average <br /> monthly temperature of 23.3° in Alamosa was 8.6° above <br /> normal. Temperatures ranged from a high of 50°to a low of <br /> -7°. The average daily high was 39° and the average daily <br /> low was 8°. Alamosa received 0.10 inches of precipitation RIO GRANDE N R . D E L NO RT E <br /> which was 0.16 inches below normal. FLOW 6Y WATER YEAR <br /> 200 <br /> u <br /> Outlook a <br /> In contrast to most of western Colorado, the Rio m 15a <br /> Grande Basin held above average snowpack throughout the Q <br /> month. With much of the annual snowfall yet to come, o 1100 <br /> average to above average runoff is a good possibility. , g <br /> W <br /> Administrative/Management Concerns - 50 <br /> The unseasonably warm temperatures and lack of 1 <br /> precipitation at the lower elevations have water officials <br /> ° <br /> concerned that soil moisture levels will become dangerously °Ct Nov DAC <br /> MONTH Jim Feb March <br /> low. Cooler and wetter weather patterns would ease these . WET [1987] —e,°FIY [1977] _AVG t 1995 <br /> concerns and prevent an early and diminished runoff. <br /> Public Use Impacts <br /> Skiers and snowmobilers were pushed to higher <br /> elevations in search of adequate snow cover. REPERSENTAT I VE RESERVO I RS <br /> Rta GRM E EASON . <br /> 45 <br /> 35- <br /> 35- <br /> J <br /> ■ <br /> .; Sa- <br /> e <br /> i <br /> Y 25- <br /> S: <br /> CP so- <br /> V <br /> • <br /> 3 10 s //s� „ r <br /> 0 <br /> ,,. <br /> Rio Grande Pietero Santa/Mr la <br /> ® Aog. 1/31 Contents ® 1/31/95 Contents <br /> 5 <br />