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<br />I <br /> <br />RIO GRANDE BASIN <br /> <br />. <br />I Basinwide Conditions Assessment <br />The SWSI value of -3.0 indicates that for August the <br />basin water supplies were well below normal. <br />Flow at the gaging station Rio Grande near Del Norte <br />averaged 279 cfs (35% of normal). The Conejos River near <br />Mogote had a mean flow of 129 cfs (63% of normal), but <br />nearly one-third of that was releases from Platoro ReselVoir. <br />Precipitation in A1amosa was 0.60 inches, 0.59 inches <br />below normal. To date, A1amosa has received only4.15 inches <br />of rain in 2004. Rainfall has not brought any relief to the <br />drought conditions in the San Luis Valley. <br />Storage in Platoro, Rio Grande, and Santa Maria <br />reselVoirs totaled 53% of normal as of the end of August. <br /> <br />Outlook <br />As the summer has progressed. stream flow in the <br />upper Rio Grande basin has dropped well below the <br />forecasted volumes. Some area streams have receded to <br />near-2002 levels. DWR personnel are forecasting that flows in <br />the basin's streams will remain below average throughout the <br />fall. Overall, reselVoir storage in the basin is poor. <br /> <br />Administrative/Manaaement Concerns <br />The dramatic drop in stream flow since June has led <br />administrators to rethink the Rio Grande Compact delivery <br />strategy. Irrigators on the Rio Grande and the Conejos River <br />and their tributaries are no longer being curtailed from <br />diverting the available stream flow. <br /> <br />Public Use Imoacts <br />Weather conditions have been generally cooperative <br />as farmers and ranchers begin to halVest their crops and cut <br />native grass. <br /> <br />Sep-04 <br /> <br />-~ <br /> <br /> <br />w <br />~ <br />> . <br />~ <br />c <br />~ <br />., <br /> <br />~ <br />c <br />, <br /> <br />. <br /> <br />. <br />.-.a5J.>4J.>e1.............lIr>aIJIr>OlJon.aZ.-.<D.-oI <br />..,..,,- <br /> <br />RIO CJWIE fIR r:a..KRTE. A...ON BY ~TIR 'r'EJfl; <br /> <br />'''''-'''' <br /> <br /> ---- <br /> V <br /> / <br /> V ~ <br />/ <br />/ ./ <br />/ <br />" ! <br /> <br />-'= <br />. <br />. <br />~ <br />~ !IXl,"" <br />~ <br />~ OOJ,CXXl <br />w <br />> <br />~ 400.000 <br />" <br />~ <br />" <br />() :00.000 <br /> <br />o <br />O:t...."".."""''''''''''''....,...........,,........ <br /> <br />-o-w:T(1007) <br /> <br />--1:R'f(3Xl2) <br /> <br />~AVG <br /> <br />......"'" <br /> <br />~AllVEFESERvO~ <br /> <br />:>S,"" <br /> <br />2l."" <br /> <br /> <br />.. <br />.. <br />~,s.ooo <br />.; <br />a <br />. <br />o <br />~1o.CXXl <br />" <br />m <br />" <br /> <br />5."" <br /> <br />o <br /> <br />""<>am <br /> <br />-., <br /> <br />- <br /> <br />_Avg.fV31C".aten1s <br /> <br />m5'311040:nla1ts <br /> <br />5 <br />