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<br />UPPER COLORADO RIVER BASIN <br />as of April 1, 2004 <br /> <br />Mountain Snowpack* (inches) <br /> <br />~Current --.-Average <br />-Maximum -+-Minimum <br /> <br />25 <br /> <br /> 140 <br /> 120 <br />Q) 100 <br />tn <br />ClS <br />... <br />Q) <br />~ 80 <br />- <br />0 <br />- <br />c: 60 <br />Q) <br />u <br />... <br />Q) <br />Q. 40 <br /> <br /> 20 <br />.5 <br />....;- <br />c: 15 <br />Q) <br />iU <br />.~ <br />::J <br />C" <br />W <br />... 10 <br />Q) <br />- <br />ClS <br />3: <br /> 5 <br /> <br /> <br />o <br />Jan Feb Mar Apr May Jun <br /> <br />*Based on selected stations <br /> <br />Precipitation* (% of average) <br /> <br />I_Monthly rnVear-to-date I <br /> <br />20 <br /> <br /> <br />'0 <br /> <br />Oct Nov Dec Jan Feb Mar Apr May <br /> <br />Extremely warm, dry conditions during March have decreased the snowpack measurements from <br />83 % of on March 1, to only 64% of average on April 1. March can usually be depended on for <br />additional accumulation to the snowpack, but this year there was no additional snow, and to make <br />matters worse there was significant melting. MeasUrements show one of the largest decreases in <br />snowpack on record in this basin. They range from only 47% of average in the Willow Creek <br />Watershed, to 84% of average in the Plateau Creek Watershed. The precipitation during March <br />was only 57% of average, and the water year total is now only 78% of average. Although there <br />was melting in the basin, reservoirs have yet to realize any benefit from runoff, as storage is only <br />87% of average on April!. There is 244% of the storage there was last year at this time. The <br />runoff forecasts for the quickly approaching runoff season have been lowered below last month's <br />forecasts. They range from only 50% of average at Muddy Creek below Wolford Mtn. Reservoir, <br />to 65% of average at the Inflow to Williams Fork Reservoir. <br />