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4 <br /> • <br /> YAMPA/WHITE BASIN <br /> Basinwide Conditions Assessment: ' <br /> The SWSI value of +0.1 indicates that the current SURFACE WATER SUPPLY INDEX <br /> conditions are normal. The weather during the month of s Y./m..1 Ito pIver Bow <br /> lis <br /> August varied considerably between periods of hot and dry 4 _ <br /> 11 <br /> conditions changing to cool and wet conditions. Irrigation � 3 _ -�- <br /> demands were generally low. As a result, streamflows =, 1 x w . <br /> remained normal. Precipitation basinwide was 131% of 2 " ...; �. <br /> average for the month, and is 117% of average for the water 1 1 II =; <br /> year. Flow at the key index gaging station, Yampa River at 1 0 4,1 1-' , '" <br /> Steamboat,was 166 cfs as compared to the historic average of i; Nal ;v 404 <br /> 158 cfs. Cumulative flow for the water year at this station is - Iy 'IN, <br /> tc approximately 20% below average. The peak stream flows -� �' �� <br /> this year were higher than were observed the past three years. -' I <br /> Periods of above normal stream flows during August provided <br /> JAN87 JAN83 JAN84 JAMS JAIM6 JAN87 JAN81 JAN89 JAN90 JA481 <br /> an opportunity to store additional water in irrigation <br /> reservoirs.Soil moisture conditions are considerably better this <br /> year as compared to last year. The basinwide water supply is <br /> the best it has been in three years. <br /> Outlook: YAMPA RIVER AT STEAMBOAT <br /> . Stream flows are predicted to be normal for the . F`°"BY <br /> WATER <br /> YEAR <br /> remainder of the year. <br /> 500- . <br /> Administrative/Management Concerns: i <br /> 400 <br /> The administrative work load throughout the division i <br /> will be near normal. Some tributaries will require additional s �g �- <br /> administration as stream flows drop. Limited administration g <br /> is taking place in the Yampa and North Platte River Basins. -" _ <br /> Public Use Impacts: 100 <br /> Some recreational uses of the streams may be <br /> impacted this year although the impact should be less than fl <br /> Oct Nay Oac Jan Feb Mb ch 'or l l Limy Junes July Aug Swt <br /> what was experienced one year ago. WWN <br /> 0 WET[1!M) + ORY(1g77) 0 AVpiAG! A 19Y1 <br /> 8 <br />