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<br />Upper Rio Grande Bar. J as of Aprill, 2001 <br /> <br />o ~Y\. ~ <br /> <br />Additional snow accumulation during March in the Upper Rio Grande Basin has provided just <br />~:lnough ~now to prqp \l.P the basin's snowpack to the only ~bove average accumulation in the state. <br />The Apnl 1 measurements are at 102% of average, whIch IS only 1 % of average less than last month's <br />measurements. Accumulations range from only 88% of average in the Conejos and Rio San Antonio <br />Watershed, to 112% of average in the Culebra and Trinchera Watersheds. There is 69% more snow <br />than there was last year on the same date. Precipitationmeasurementsin the higher elevations was <br />only 76% of average during March causing the water year total to slip 6% of average from last month, <br />to 98% of average on April 1. Reservoir storage is about 9% above average for this time of year, but <br />is only 70% of the storage amount last year at this time. Stream forecasts for the runoff season have <br />decreased slightly fromlas! month for many of the forecast points, but most remain near to above <br />average. Forecasts range from 71 % of average on the San Antonio River near Ortiz, to 125% of <br />average on Culebra Creek at San Luis. <br /> <br />Mountain Snowpack" (inches) <br /> <br />Precipitation" (% of average) <br /> <br />->t- Current ___Average <br />-- Maximum __ Minimum <br /> <br />I_ Monthiy 0 Year-to-date , <br /> <br />25 <br /> <br />20 <br /> <br /> <br /> <br /> 180 <br /> 160 >> <br /> ~ <br /> 140 f <br />Q) 120 I <br />C) ~~ <br />"" <br />... ~ <br />Q) <br />~ 100 7 <br />.... % <br />to <br />- 80 i <br />c: ~ <br />~ :, <br /> , '5 <br />... 1 <br />Q) 60 ,~ <br />a. <br /> ~. j <br /> 40 ~ , <br /> ., <br /> -S'. ,! <br /> 20 1 <br /> ,. <br /> ~' <br /> 0 ., <br /> Oct Nov Dec Jan Feb Mar Apr May <br /> <br /> <br />.5 <br />C 15 <br />Q) <br /><e <br />.~ <br />e- <br />~ 10 <br />Q) <br />~ <br /> <br /> <br />/ <br />~/ <br />/ <br /> <br />." <br />, <br />'--,. <br /> <br />5 <br /> <br />------ <br /> <br />'-~ <br />'-. <br /> <br /> <br />~- <br />/- <br />/- <br /> <br />o <br /> <br />Jan <br /> <br />Feb <br /> <br />Mar <br /> <br />Apr <br /> <br />May <br /> <br />==~==============~============================================================== <br /> <br />UPPER RIO GRANDE BASIN <br />Reservoir Storage (1000AF) End of March <br /> <br />================================================================================ <br /> <br />Reservoir <br /> <br />Usable <br />Capacity <br /> <br />********** Usable Storage ********* <br />This Year Last Year Average <br /> <br />===================~============================================================ <br /> <br />CONTINENTAL 15.0 6.2 5.2 5.9 <br />PLATORO 53.7 14.2 29.5 16.4 <br />RIO GRANDE 51. 0 15.9 5.1 18.0 <br />SANCHEZ 103.0 27.4 44.2 17.3 <br />SANTA MARIA 45.0 10.2 20.7 9.2 <br />TERRACE 13 .1 6.3 9.4 6.5 <br /> <br />================================================================================ <br />