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<br />ARKANSAS RIVER BASIN <br />as of May 1, 2003 <br /> <br />Mountain Snowpack* (Inches) <br /> <br />"""'*-Currenl -Ar-Average <br />___Maximum -+-Mlnimum <br /> <br /> <br /> 18 <br /> 18 <br /> 14 <br />.5 '2 <br />- <br />c <br />. <br />. 10 <br />> <br />., <br />" 8 <br />w <br />, <br />. <br />- <br />. 6 <br />;: <br /> 4 <br /> 2 <br /> 0 <br /> Jan Fob Mar Apr May <br /> <br />.Based on selected stations <br /> <br />Precipitation" (~o of average) <br /> <br />I_Monthly BYear-to-dale I <br /> <br /> 140 <br /> 120 <br />. 100 <br />'" <br />. <br />, <br />. <br />> 80 <br />" <br />- <br />0 <br />- <br />c 80 <br />. <br />u <br />, <br />. <br />0. <br /> 40 <br /> 20 <br /> <br /> <br />o <br /> <br />Oct Nov Dee Jan Fob Mar Apr May <br /> <br />TIle Arkansas Basin received some welcome snowfall in late April, which at times drove the <br />accumulation to above average levels. Now that the snow melt season appears to be well under <br />way, the snowpack measurements are back down to slightly below average, which is about the <br />same percent of average as last month. Most watersheds in the basin have near average <br />measurements with the exception of the Purgatoire Watershed, where the measurements are only <br />56% of average. Precipitation measurements for the month of April were only 89% of average, <br />and the water year total remains at 94% of average. There has been about 163% of the <br />precipitation there was last water year by this time. Reservoirs in thc basin have only 44% of <br />their average combined storage amount for the end of April. There is only 58% of thc storagc <br />there was last ycar at the cnd of April. Many of the May I strcamtlow forecasts have gone down <br />from last month. Thcy range from 80% ofaveragc at the Cucharas River near La Veta, to 89% of <br />average on the Jluerfano River near Redwing. <br />