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<br />YAMPA, WHITE, NORTH PLATTE AND LARAMIE RIVER BASINS <br />as of January I, 2003 <br /> <br />Mountain Snowpack* (inches) <br /> <br />~Current -.-Average <br />___Maximum --+---Mlnimum <br /> <br />35 <br /> <br /> <br />30 <br /> <br />25 <br /> <br />.5 <br /> <br />- <br />c <br />~ 20 <br />> <br />'5 <br />C" <br />w 15 <br />" <br />.'! <br />. <br />;: 10 <br /> <br />5 <br /> <br />o <br />Jan Feb Mar Apr May Jun <br /> <br />-Based on selected slaliolls <br /> <br />Precipitation- (% of average) <br /> <br />[_Monthly OYear.to.dale] <br /> <br /> <br />120 <br /> <br />. <br />'" 80 <br />. <br />" <br />. <br />> <br />.. <br />- <br />0 <br />- <br />c <br />. <br />u <br />" <br />. <br />a. <br /> <br />o <br /> <br />Oct Nov Dee Jan Feb Mar Apr May <br /> <br />Snowpack measurements in these basins range from only 61 % of average in the Laramie Basin, to <br />94% of average in the Yampa Basin. The measurements are 30% above last year at this time. If <br />weather patterns manage to turn a little wetter for the remaining snow season most portions of <br />these basins could end up with well above average snow accumulation by April I. On the other <br />hand, if significant snowfall does not occur in the coming months, water supplies from the spring <br />snowmelt will be much lower than what will be required to relieve the water shortages brought on <br />by last year's low snowpack. Precipitation was only 67% of average during December, and the <br />water year total is 93% of average. There has been about 28% more precipitation this water year <br />compared to last water year by this time. Reservoirs in the basin have only 89% of their average <br />storage for this time of year. There is only 88% ofJast year's storage amount. Early forecasts for <br />this year's runoff season are all below averagc. Forecasts range from 70% of average on the <br />Laramie River near Woods, to 82% of average on the Yampa River at Steamboat Springs. <br />