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<br />UPPER COLORADO RIVER BASIN <br />as of April 1, 2002 <br /> <br />MountaIn Snow pack. (Inches) <br /> <br />Precipitation. (% of average) <br /> <br />I~currenl ---A-Average i <br />,___Maximum ---'-Mtnimum \ <br /> <br />I_Monthly E!lYear-lo-dale : <br /> <br />25 <br /> <br /> <br /> 90 <br /> 80 <br /> 70 <br />Gl 60 <br />Cll <br />l! <br />.. <br />> 50 <br />< <br />'5 <br />... 40 <br />I: <br />.. <br />~ <br />.. 30 <br />D.. <br /> 20 <br /> 10 <br /> 0 <br /> Ocl Nov Dec Jan Feb Mar Apr May <br /> <br /> <br /> 20 <br />.5 <br />..: <br />I: 15 <br />.. <br />ii <br />> <br />.S <br />IT <br />W <br />~ 10 <br />.. <br />... <br />~ <br /> 5 <br /> <br />o <br />Jan Feb Mar Apr May Jun <br /> <br />.Based on selected stations <br /> <br />.1 <br /> <br />The snowmelt has only just begun in the Colorado Basin, but if cooler temperatures and more <br />snowfall does not arrive during April, the meager snowpack accumulation will rapidly disappear. <br />The April I snowpack measurements are at only 63% of average for the entire basin, which is <br />only 76% of the amount of snow there was last year at this time. Measurements range from only <br />53% of average in the Plateau Creek Watershed, to 69% of average in the Blue River Watershed. <br />While the precipitation during March was only 73% of average, this was the second largest <br />monthly accumulation during this water year. The water year total is only 70% of average. The <br />combined reservoir storage is 84% of average on April I, which is likely to diminish further as <br />the runoff season progresses. There is only 84% of the amount of storage there was last year at <br />this time. As the runoff season begins, all of the streamflow forecasts in the basin are much below <br />average. Forecasts range from only 47% of average on the Muddy Creek below Wolford Mtn. <br />Reservoir, to 66% of average at the Inflow to Green Mountain Reservoir. <br />