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. , T <br /> YAMPA/WHITE BASIN October, 1998 <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 1.8 indicates that for September , YAMPA-WHITE RIVER BASINS <br /> the basin water supplies were above normal. Flow at the Surfsw llatsr Supply Index History 5 - <br /> gaging station Yampa River at Steamboat averaged 158 cfs,as ,- - <br /> compared to the long term average of 112 cfs. 3_ J <br /> The Steamboat Springs weather observer reports a . : ' ': ; <br /> total of 1.13 inches of precipitation for the month of 2— <br /> -. r a <br /> September. This is 68% of average and compares low to the 1- ,,.�} 1 n. <br /> total of 6.48 inches that occurred during September last year. g o . - ' "' "'' {"_".�, "' <br /> The month was very dry and as a result stream flows - _?I' ;` -W. -/ <br /> decreased to levels below the normal averages. The dry 2 �' ,. j) , ; f <br /> weather allowed for optimal conditions to finish the harvest a r '� .... <br /> :,= ;r� <br /> 3 f ,.•Ir y <br /> season. , <br /> JAN99 JAN90 JAN91 JAN92 JAN93 JAN91 JAN95 JAN90 JAN97 JAN99 <br /> Outlook MOTH,YEAR <br /> Stream flows are expected to remain near base flow <br /> conditions. <br /> Administrative/Management Concerns <br /> None YAMPA RIVER AT STEAMBOAT <br /> FLOW NY WATER YEAR <br /> COO <br /> Public Use Impacts <br /> None S00 <br /> 400 - <br /> } <br /> o i 300 <br /> 4F <br /> S zoa — <br /> 1 <br /> 100 <br /> 0 <br /> Oct Nov Doc Jan Feb March Apr 1I INs Juno July Aug Soot <br /> MONTH <br /> 0 WET(1994) 0 ORY(1977) A AVG X 119E <br /> 8 <br />