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<br />YAMPA, WHITE, NORTH PLATIE AND LARAMIE RIVER BASINS <br />as of May 1, 2004 <br /> <br />Mountain Snow pack' (Inches) <br /> <br />Precipitation- (% of average) <br /> <br />~Current -A-Average <br />___Maximum -+-Minimum <br /> <br />I_Monthly l::lYear-to-dale I <br /> <br />5 <br /> <br /> <br /> 180. <br /> 160. <br /> 140- <br />. <br />'" 120. <br />. <br />" <br />. <br />~ 100' <br />- <br />0 <br />- 80, <br />0 <br />. <br />u <br />" -, <br />. 80, <br />e. <br /> 40, <br /> 20 <br /> <br /> <br />35 <br /> <br />30 <br /> <br />25 <br />.: <br /> <br />-" <br />o <br />~ 20 <br />,~ <br />, <br />0- <br />W 15 <br />" <br />.'!1 <br />. <br />;: 10 <br /> <br />o <br /> <br /> <br />o <br /> <br />Oct No\' Dee Jan Feb Mar Apr May <br /> <br />Jan Feb Mar Apr May Jun <br /> <br />-Based on sdected stations <br /> <br />It appears that 2004 will go into the books as another significant drought year for these basins, <br />With snowpack levels reaching their peak in March, followed by melting one to two months <br />early, the May I snowpack percentages are the lowest in the state, Snowpack readings for these <br />basins are only 53% of average and are only 57% oflast year's totals for this date. These basins <br />were the only major basins in Colorado to report below average precipitation for the month of <br />April. While better than most months for the 2004 water year, the April totals were 97% of <br />average. This leaves the water year totals at only 83% of average. Reservoir storage for the two <br />reservoirs in these basins is slightly above average. Forecasted nmoff in these basins is some of <br />the lowest in the state, Volumes forecast in the North Platte are only a dismal 32% of average and <br />improve only slightly along the upper tributaries to the Yampa River, <br />