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I <br /> GUNNISON BASIN March, 1998 <br /> Basinwide Conditions Assessment: <br /> The SWSI value of-0.8 indicates that for February the GUNNISON RIVER BASIN <br /> basin water supplies were near normal. The Natural S Surface Water Supply Index History <br /> Resources Conservation Service reports March 1 snowpack as 4- L <br /> 89% of normal. Flow at the gaging station Uncompahgre _ ;;; <br /> River near Ridgway averaged 47 cfs as compared to the long 3 °_'` 7, ,-4 <br /> term average of 44 cfs. Storage in Taylor Park,Crawford, and 2^ - ram. <br /> g g Y <br /> Fruitland reservoirs totaled 122% of normal as of the end of Y. 1- 11. .�.... + =`February. D l _ ,�' — <br /> The basin contains wide variations in snowpack _ r- ., : ;;;' + x <br /> N <br /> j , 1 i <br /> figures. On the north side (Grand Mesa and North Fork of the _ o , <br /> Gunnison) snowpack looks good. The eastern areas in the a -2 1 ; <br /> upper Gunnison River and Tomichi Creek drainages is at 75%- -3- <br /> 98%of normal. The southern area of the Uncompahgre River -4 , <br /> JAN09 JAN90 JAN91 JAN82 JAN93 JAN94 JAN95 JAN96 JAN97 JAN98 <br /> is well below normal at 70%-80%of normal. The San Miguel MJNTWYEAR <br /> River drainage in the west is the worst at about 75% of <br /> normal snowpack. No positive El Nino effect is apparent. - <br /> Outlook <br /> Significant snow months are still ahead so the UNCOMPAHGRE RIVER NR. R I DGWAY <br /> situation might improve. 25 FLOW MY WATER YEAS <br /> 24 <br /> 23 <br /> 22 <br /> Administrative/Management Concerns 21 <br /> 20 <br /> It is getting closer to the time when water officials 1 - ...,________>,,F/Z. <br /> begin making estimates of total runoff amounts and adjusting L„ 17 <br /> their operating criteria accordingly. In light of the reduced s 14 <br /> snowpack, the Bureau of Reclamation recently decided to LL 2 g 13 <br /> 12 <br /> decrease their releases out of Crystal Reservoir. Blue Mesas 11-. -------- <br /> Reservoir will be lowered only a slight additional amount to i 1B -� <br /> make room for the spring runoff. 7 <br /> 6 <br /> The highest level of water administration in the basin 5 <br /> occurs on the south side of the Grand Mesa and the North 3 <br /> Oct Nov Lyc Jan Feb Parch <br /> Fork of the Gunnison. High snowpack numbers are very 113NTI1 <br /> desirable in these areas. ° WET(1ee4) 0 Dar"977) A AVG X 199e <br /> REPRESENTATIVE RESERVOIRS <br /> e0 GUNNISON RIVER BASIN <br /> 70- <br /> i so J//` <br /> �n so <br /> /\ <br /> a. <br /> li! 4°_-/-\ <br /> a.2 <br /> a 30 <br /> /\\ <br /> ■ <br /> 3 20 <br /> 10 <br /> 0 /\ /7/I\\NV\ I,,,,INANN.' <br /> Taylor Park Crawford Fr.ILlane <br /> ® AVQ. 2,2e Content. N-73 2/28190 Content. <br /> 6 <br />