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<br />002183 <br /> <br />. <br /> <br />Page 2 <br /> <br />c' <br /> <br />" <br /> <br />of average, the fifth consecutive dry month for this area. Pre,cipitation below <br />Flaming Gorge was variable, averaging near 100%. The Duchesne R~ver basin was <br />near 60%, . while the Yampa and White River basins were near 185\percent. The <br />seasonal October through April precipitation for. the upper Green\,~iver basin <br />above Flaming Gorge is near 65%, while it is near 110% below Flaming\GOrge. <br /> <br />The mountain snowpack above Flaming Gorge is near 65% of average. Below <br />Flaming Gorge, the snowpack is near 80 percent; one exception to the,se trends <br />is on the Whi te River, where the snowpack is above average. <br /> <br />April flow for the Green River at Green River, Utah was 885,000 acre-feet, 210' <br />of average. This brings the seasonal October through April total to 2.46 <br />million acre-feet, 188 percent of average. <br /> <br />, <br />Reservoir storage in Fontenelle as of April 30 was 145,000 acre-feet. 76% of <br />average and 42 percent of capacity. Fontenelle Reservoir will be drawn down to <br />a storage of 40,000 acre-feet by May 10th. Storage in Flaming Gorge is 3.11 <br />million acre-feet, 133' of average, 83' of capacity compared to 3.07 million <br />acre-feet last year. <br /> <br />SAN JUAN RIVER BASIN: Streamflow forecasts increased 10 <br />issued April 1st. Forecasts ranged from 133% of normal on <br />near Hesperus to 18~ on the Navajo River near Edith. <br /> <br />to 20' from those <br />the LaPlata River <br /> <br />April precipitation was well above normal over the entire basin with Aztec <br />Ruins, New Mexico reporting 427 percent and numerous other stations reporting <br />amounts in the 200 to 350% of normal range. Seasonal precipitation, October <br />through April, remained well above normal with amounts ranging from 125 to 170' <br />of average. <br /> <br />May 1 snowpack readings indicate an average snow water content of 161' of <br />normal compared to 142% on April 1st and 115' on March 1st. This is also 50 <br />percent higher than the May I, 1984 snow water content amount. <br /> <br />April streamflow continued to run well above normal. For the second consecu- <br />tive month. inflow to Navajo Reservoir, was a record amount with 340,000 <br />acre-feet. The previous record was 328,700 acre-feet set in 1952. The <br />April inflow to Vallecito Reservoir of 40,700 acre-feet also represents a <br />record inflow, surpassing the 1943 figure of 38,000 acre-feet. Other flows <br />include the Animas River at Durango, Colorado - 251% and the San Juan River <br />near Bluff, Utah - 233 percent. Seasonal flow at Bluff has been 1.21 million <br />acre-feet, 201 percent of normal. <br /> <br />Storage in Navajo Reservoir on May 1 was 1.5 million acre-feet, 184 , of <br />normal, 8~ of capacity and about 100,000 acre-feet more than April 1st. <br /> <br />The threat of snowmelt flooding this spring in the San Juan Basin <br />concern due to the additional snowpack accumulation in late April. <br />weather could create problems in low lying and flood prone areas. <br /> <br />is still a <br />Adverse May <br />