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t, <br /> a <br /> RIO GRANDE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of +1.3 indicates that for June the RIO GRANDE BASIN <br /> basin water supplies were slightly above normal. Storage in s Surface =�r Supplynix HlCtory <br /> Platoro, Rio Grande, and Santa Maria reservoirs totaled 19O% 4 <br /> of normal on June 30. Flow at the gaging station Rio Grande w 3 L L <br /> near Del Norte averaged 3,375 cfs, as compared to the 1961- _ .1_�,' • ` ;: -` <br /> 1991 June average of 3,116 cfs. Last month's average was 2-"-i ::: <br /> a .- <br /> 2,780 cfs. The average daily flow for the month at the 1 i.4,- --- - ,i— -, <br /> Conejos River near Mogote was 1,510 cfs compared to last D L,_ `,,,' s•r <br /> month's average of 1,120 cfs. Basin temperatures were about 0/,-,_If,/ r <br /> average for the month of June. The Alamosa weather station <br /> a _2- <br /> reported the average maximum temperature for the month to ° <br /> be 77.2° and the average minumum temperature to be 40.2°. 3- <br /> The high temperature for the month was 87° on June 27, 4 <br /> JAN84 JAN85 JAN86 JAN87 JAN88 JAN89 JAN90 JAN91 JAN92 JAN93 <br /> while the low was a cool 31° on June 8 and 9. The total YEAR/IXINTN <br /> precipitation for the month was 0.14 inches which is 0.53 <br /> inches below normal. <br /> Outlook <br /> All of the major reservoirs in the basin were able to PIO GRANDE NR. DELNORTE <br /> store substantial amounts of water during the runoff and are 1 1 FLOW BY WATER YEAR <br /> therefore well above average. The Rio Grande and its tJ <br /> tributaries have seen their runoff peaks from snowmelt and 0,9 <br /> are on the downhill side of the hydrograph. The flows should 44 0. <br /> s 8 <br /> continue to decrease to base flow levels later this summer. : 07 <br /> Administrative/Management Concerns w- .5 <br /> It appears at this time that Colorado's compact s V D <br /> obligation for the Rio Grande and Conejos rivers is very close ! 03 <br /> to being met according to the forecasted runoff numbers. 0 2 <br /> Colorado delivered 87,050 acre-feet of water to the New D, <br /> Mexico state line during the month of June. D <br /> Oct Nov D. Jan Feb Mnrch AprI I key Juno Ju I y Aug Sept <br /> M]NTM <br /> Public Use Impacts WET Ct987) o DRY[1977J A AVG X 1993 <br /> The declining flows and clearing waters in the <br /> surrounding rivers and streams should provide some very good <br /> fishing around the basin. The reservoirs,being more full than <br /> they have been in some time, will be a great place for REPRESENTATIVE RESERVOIRS <br /> recreational activities. 6D RID GRANDE BASIN <br /> SO <br /> ~ 40- <br /> §.1 30- <br /> bF <br /> r / <br /> ;v 20 <br /> 10 ////\\\ V7 \\\\X,,, <br /> Rlo GrooOo Platoro SantaMarla <br /> ® Avg 6/30 Conti. ® 6/30/93 Contents <br /> 5 <br />