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<br />ARKANSAS RIVER BASIN <br />as of April 1, 2002 <br /> <br />" <br /> <br />. <br /> <br />Mountain Snowpack* (inches) <br /> <br />Preclpltatlon* (% of average) <br /> <br />__Current --'-Average <br />_Maximum -+-Minimum <br /> <br />[ .Monthly IllYear-to-date I <br /> <br /> 18 <br /> 18 <br /> 14 <br />.5 12 <br />.. <br />c <br />.. <br />ii 10 <br />> <br />'S <br />CT 8 <br />w <br />.. <br />.. <br />- <br />II 8 <br />~ <br /> 4 <br /> 2 <br /> 0 <br /> Jan Feb Mar Apr May <br /> <br /> <br /> 80 <br /> 70 <br />.. <br />Q <br />I! <br />.. <br />> 50 <br />< <br />... <br />0 <br />- 40 <br />c <br />.. <br />I:! <br />.. 30 <br />ll. <br /> 20 <br /> 10 <br /> 0 <br /> Oct Nov Dec Jan Feb Mar Apr May <br /> <br /> <br />'Based on selected stations <br /> <br />.1 <br /> <br />The snowmelt and runoff season is well under way in the Arkansas Basin. Although the Arkansas <br />Basin has received some additional snow accumulation during March, the early melting has <br />reduced the April 1 measurements below those on March 1, leaving only 48% of average <br />accumulation. There is only 58% of the amount of snow in the basin there was last year on April <br />1. The measurements range from only 28% of average in the Purgatoire Watershed, to 60% of <br />average in the Upper Arkansas Watershed above Salida. The precipitation during March was only <br />55% of average, and the water year total is now only 63% of average. The combined reservoir <br />storage is at 77% of average, which is slightly less than last month, and can be expected to fall <br />much more as the runoff season progresses. There is 35% less water stored then there was last <br />year at this time. All of the streamflow forecasts remain well below average at this time. They <br />range from only 35% of average on Grape Creek near Westc1iffe, to 65% of average on the <br />Arkansas River at Salida. <br /> <br />. <br />