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<br />YAMPAIWHITE BASIN <br /> <br />Basinwide ConditIons Assessment <br />The swsr value of -3.3 indicates that for March the <br />basin water supplies were well below normal. The Natural <br />Resources Conservation Service reports that April 1 <br />snowpack is 69% of normal. Flow at the gaging station <br />Yampa River at Steamboat was 227 cfs, as compared to the <br />long-term average of 153 cfs. <br />March was well above average in terms of <br />temperatures, and well below average in terms of <br />precipitation. The basin only received 58% of the average <br />March precipitation. The drop in the snowpack from the <br />previous month was up to 20% at some of the <br />measurements sites. <br /> <br />Outlook <br />The April111l runoff forecasts prepared by the Natural <br />Resources Conservation Service dropped significantly in the <br />past month. The percent of average runoff under the most <br />probable forecast is 40% for the North Platte River near <br />Northgate (down from 80%) 54% for the Yampa River near <br />Maybell (down from 78%), and 59% for the White River near <br />Meeker (down from 78%). These forecasts are only a few <br />percent above those for the same time period in 2002, <br />except for the North Platte River, which is actually lower this <br />year than 2002. <br /> <br />AdministrativelManaQement Concerns <br />Calfs for administration were placed on the Illinois <br />River in North Park, and Piceance Creek in the White River <br />Basin, during March. With much of the snowpack at the lower <br />and mid..elevation gone, administration is likely to occur on <br />several tributaries until the high snowpack begins to melt. <br />Absent significant precipitation for the rest of the spnng. <br />water supply conditions may be as severe as in 2002. <br /> <br />Apr-04 <br /> <br />-- <br /> <br /> <br /> <br />,>1 <br />r <br />. " <br />~ I . <br />~T <br />'! <br />,. <br />, <br />.' <br />- - - - - - - - - - <br /> .-- <br /> _~"'TSTE.<MlOl.T.FU;M/fJV'M1fJl'lEN'l <br /> <br />~~f-- 1- -f+ <br />OO~ 1-' <br />J ~OO)t . i <br />~ "'~,- - +--r <br />+ <br /> <br />-1 <br /> <br />:t: ~1XJJt-- <br />0." <br />!i01XJJ>- ---+ <br />i::t~:-'M " <br /> <br />uZlIXJJ! --=--~ <br />10.(0) ~i -~ . <br />, , <br />o ....i.. I ~_ ~ <br />0:1 "0. 0..: ...., FI(l ""'" .lp'II <br /> <br />_'/Ef1196ol, <br /> <br />D<<,,,,,, <br /> <br />"0 <br /> <br />"" <br /> <br />8 <br />