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RIO GRANDE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of-2.4 indicates that for January the RIO GRANDE BASIN <br /> asin water supplies were below normal. The Natural s Su-face alat.r Supply"'°"`ulctr <br /> Resources Conservation Service reports February 1 snowpack 4 <br /> as 51% of normal. Flow at the gaging station Rio Grande 3- r <br /> near Del Norte averaged 168 cfs, which equaled the 1961- = <br /> 1993 average. The Conejos River near Mogote had a mean 2- = - <br /> flow of 51 cfs. Storage in Platoro, Rio Grande, and Santa i 1 <br /> Maria reservoirs totaled 240% of normal as of the end of g 0 1 <br /> January. - <br /> Ii I, T <br /> It <br /> D mild conditions revailed throw houtthe San Luis .' <br /> ry p g _2_ Z <br /> Valley during January. The average temperature in Alamosa a • <br /> was 20.8°, 6.1° above normal. A high of 54° made the "3- <br /> warmest January temperature in 10 years. Alamosa received -4 l -( ... _ <br /> JAN87 JANBE JAN99 JAN90 JAN91 JAN92 JAN93 JAN94 JAN95 JAN96 <br /> 0.06 inches of precipitation during the month, 0.20 inches ,EAw►, 1 <br /> below normal. <br /> Outlook <br /> Although slight improvement in the snowpack <br /> occurred in the basin during January, a dramatic recovery is RIO GRANDE NA. DELNORTE <br /> needed to reach average conditions before the irrigation 170 FLOW WATER YEAR <br /> season begins. Fortunately, enough time remains for this to 76o <br /> 1s. <br /> occur. 140 <br /> ` 130 <br /> Administrative/Management Concerns y 12o <br /> n 110 <br /> Lack of precipitation at the lower elevations may force o i 100 - <br /> irrigators to use underground water supplies earlier and 2 g 90 <br /> �' <br /> Leavier than normal next summer. This draft on the confined ;" o. /7----'--- <br /> 0 <br /> nd unconfined aquifers is of concern to those who depend <br /> solely on ground water sources. S0 �;� <br /> 40 <br /> 30 <br /> Public Use Impacts 20 <br /> Oct Nov 0ac Jan Fab Uorch <br /> Outdoor activities dependent on snow depth are <br /> ° wer "� DRY 0i9� a AVG x 1996 <br /> suffering from the below average conditions. <br /> REPERSENTATIVE RESERVOIRS <br /> RIO GRANDE BASIN <br /> S0 <br /> 45- X <br /> 40- <br /> vn 3O- <br /> f a <br /> 42 <br /> My 20- <br /> r <br /> 10-177\ <br /> f <br /> 5 _//- <br /> Rlo Grande Platoro SantaAke la <br /> ® Avg 1/31 Contents ® 1/31/OS Cantanta <br /> 5 <br />