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<br />!Jl)lg~,3 <br /> <br />.. <br /> <br />only 20% of average for the month. The South Platte basin reported the highest percent of <br />average in the state, although its total was only 66% of average. Water year totals range from <br />. a low of only 44% of average in the San Juan, Animas, Dolores, and San Miguel basins to a <br />high of 64% of average in the Yampa and White basins. <br /> <br />Reservoir Storage <br /> <br />Early water demands, along with well below average May inflows, contributed to a substantial <br />decrease in reservoir storage on June 1. Statewide storage, as a percent of average, decreased <br />from 86% of average on May I to 73% of average on June 1. This is equivalent to a decrease <br />of 185,000 acre-feet, while the average actually increases by 352,000 acre-feet during the <br />month of May. Decreases in volume were seen in all basins during May. The combined SIm <br />Juan, Animas, Dolores, and San Miguel basins are reporting the lowest percent of average <br />storage at 57%. Other basins with well below average storage include the Rio Grande at 64%, <br />the Arkansas at 66%, and the Colorado at 69%. The state's best storage, as a percent of <br />average is in the Gunnison basin, which is reporting 95% of average. As compared to last <br />year, all basins are reporting storage volumes that are well below those of a year ago. This <br />year's storage in the Arkansas basin is only slightly more than half of last year's. Statewide, <br />this year's storage is only 69% oflast year's. <br /> <br />Streamflow <br /> <br />Another dry month ih May brought additional decreases to the streamflow forecasts across <br />Colorado. All a general rule, forecasts range from about 25% to 50% of average across the <br />northern half of the state, while the southern half can expect volumes of only 10% to 25% of <br />average. The lowest forecasts, as a percent of average, occur thoughtout the San Juan River <br />Basin, with the forecasted inflow into Navajo Reservoir at only 9% of average. Forecasts <br />along the Dolores, Mancos, Rio Grande and lower Arkansas tributaries remain only in the <br />teens for percentage forecast. The state's best outlook, while still quite dismal, is in the <br />tributaries of the upper Colorado River and the northern tributaries of the South Platte River. <br />Here, forecasts call for volumes of 40% to 47% of average. Along some streams in southern <br />Colorado this year could very well be the lowest runoff season on record. <br /> <br />"-;; <br /> <br /> <br />f, <br /> <br />