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<br />ARKANSAS RIVER BASIN <br />as of May 1, 2004 <br /> <br />Mountain Snowpack* (inches) <br /> <br />Precipitation' (% of average) <br /> <br />-*- Current ----'-Average <br />___Maximum -+--Minimum <br /> <br />I_Monthly DYear-to-dale I <br /> <br /> 18 <br /> 16 <br /> 14 <br />c 12 <br />- <br />c <br />.!! 10 <br />. <br />> <br />'5 <br />" 8 <br />w <br />- <br />. <br />- <br />. 8 <br />;: <br /> 4 <br /> 2 <br /> 0 <br /> Jan Fob <br />'Dased on selected sbtions <br /> <br /> <br />250 <br /> <br /> 200 <br />. <br />'" <br />. <br />- 150 <br />. <br />~ <br />- <br />0 <br />- <br />c <br />. <br />~ <br />. <br />Q. <br /> 50 <br /> <br /> <br /> <br />May <br /> <br />Oct Nav Dee Jan Fob Mar Apr May <br /> <br />Mar <br /> <br />Apr <br /> <br />The Arkansas Basin was favored by the April storms which brought heavy snowfalls to the <br />Sangre de Cristo Mountains. These storms helped to significantly improve the snowpack along <br />that range, but had a reduced contribution in the mountains of the headwaters, Snowpack <br />readings for May I, rebound to 98% of average and are 101 % of last year's readings on this date, <br />The Arkansas Basin recorded the highest monthly percent of average precipitation in the state in <br />April with 209% of the monthly average. This allowed the water year totals to reach 100% of <br />average this month. Reservoir storage within the Arkansas Basin continues to track at well below <br />average volumes. This month's statistics for the 12 reservoirs in the basin are only 53% of <br />average, but remain 20% above that in storage a year ago. Runoff forecasts in the Arkansas Basin <br />range from 102% of average along the Purgatoire River, to only about 85% of average along the <br />main stem of the Arkansas River. <br />