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<br />YAMPA, WHITE, NORTH PLATIE AND LARAMIE RIVER BASINS <br />as of June 1,2004 <br /> <br />Mounlaln Snow pack' (Inches) <br /> <br />~Curren( ---.-Average <br />___MaxImum --+-Minimum <br /> <br />35 <br /> <br /> <br />30 <br /> <br />25 <br />C <br /> <br />- <br />o <br />. 20 <br />. <br />,~ <br />, <br />C' <br />w 15 <br />- <br />. <br />~ <br />10 <br /> <br />5 <br /> <br />o <br />Jan Feb Mar Apt May Jun <br /> <br />"Dascd Oil selected stations <br /> <br /> 180- <br /> 160 <br /> 140 <br />. <br />C> 120. <br />~ <br />. <br />> 100 <br />" <br />- <br />0 <br />- 80 <br />0 <br />. <br />u <br />- <br />. 60 ,- <br />0. <br /> <br />Precipitation" (% of average) <br /> <br />I_Monthly DYear-to-date I <br /> <br /> <br /> <br />Ocl Nov Dee Jan Fob Mar Apr May <br /> <br />At this time it appears that the measurable snowpack in these basins will be gone about a month <br />ahead of the average melt out date, Low accumulation amounts all winter, combined with a dry, <br />warm spring have contributed to June I snow measurements that are only 40% of average in the <br />North Platte Basin, and only 36% of average in the Yampa and White basins. The amount in the <br />North Platte Basin is similar to last year at this time, while the amount in the Yampa and White <br />basins is about 29% higher than last year. Monthly precipitation in these basins was below <br />average for the sixth straight month, Precipitation measurements were only 53% of average <br />during May, and the water year total is only 80% of average, Combined reservoir storage for the <br />two main reservoirs in these basins has dropped significantly below average for the first time this <br />water year, at only 92%, Runoff forecasts throughout these basins call for well below average <br />volumes this summer. Most forecast values of only about 50% of the normal along most of the <br />streams for the 2004 runoff season, <br />