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<br />Y AMPA, WHITE, NORTH PLATIE AND LARAMIE RIVER BASINS <br />as of April 1, 2002 <br /> <br />Mountain Snowpack* (Inches) <br /> <br />Preclpltatlon* ("10 of average) <br /> <br />I ~ Current ---*-Avera~ <br />,___Maximum -+-Minimum <br /> <br />I_Monthly IlJYear-to-date I <br /> <br />5 <br /> <br /> <br /> 60 <br /> 70 <br /> 60 <br />Gl <br />Cll <br />I! 50 <br />.. <br />> <br />< <br />... 40 <br />0 <br />- <br />c <br />.. <br />l:! 30 <br />Gl <br />II. <br /> 20 <br /> <br /> <br />35 <br /> <br />30 <br /> <br />25 <br />.5 <br /> <br />- <br />c <br />~ 20 <br />> <br />'5 <br />IT <br />w 15 <br />.. <br />.. <br />- <br />~ <br />10 <br /> <br />o <br />Jan Feb Mar Apr May Jun <br /> <br />Oct Nov Dec Jan Feb Mar Apr May <br /> <br />*Based on selected stations <br /> <br />.I <br /> <br />For the third month in a row, these basins have received more snow accumulation then any of the <br />other basins in Colorado, which has improved their snow measurements, but they still remain <br />significantly below average on April I. The North Platte Basin is only at 66% of average, while <br />the Yampa and White basins combined are only at 68% of average. . There is about 82% of the <br />amount of snow in these basins as there was last year at this time. Snow accumulation ranges <br />from 56% of average in the Laramie Watershed, to 73% of average in the Elk River Watershed. <br />Precipitation in these basins during March was 70% of average. The water year total remains at <br />70% of average. The combined storage in the two major reservoirs in these basins is at 101 % of <br />average volume for this time of year, which about 3% less storage volume that there was last year <br />at this time. Most of the streamflow forecasts in these basins have been reduced from last month, <br />ranging from only 43% of average on the Laramie River near Woods, to 62% of average on the <br />Yampa River above Stagecoach Reservoir. <br />