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Ilk <br /> RIO GRANDE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of +0.1 indicates that the current SURFACE WATER SUPPLY INDEX <br /> conditions are normal. Precipitation measured 139% of 5 , aro Grande Basin <br /> average for the month and is 127% of average for the water <br /> year. Flow at the key index gaging station, Rio Grande near , <br /> Del Norte, averaged 2815 cfs for the month as compared to ii 3- t 7 5 :r: ' <br /> the historic monthly average of 3126 cfs. Basin wide reservoir _ , <br /> storage was at 104% of average on July 1, 1991. Platoro i ...; — I ..M Alec ' .,ili. <br /> Reservoir increased storage (usable) to 36,600 acre-feet on 1 aII �'"` - - i'�t..,,o� <br /> July 1st. The month of June brought a continuation of the _,_ li <br /> "unusual" spring of 1991 in the Rio Grande Basin. _ - <br /> Technically, the river peaked in late May but ran high o -� <br /> throughout the first three weeks of June. These flows allowed ''- <br /> for almost all of the direct flow ditches to be in priority which -4 _ <br /> JANS7 JAN113 JAN 4 JAN15 JANli JAN17 JAHN JAN110 JANI10 JAN01 <br /> is unusual in a year with a limited snow pack. The reservoirs YEApr.oans <br /> generally did not come into priority, and therefore will not <br /> provide late season diversions for the respective owners except <br /> the small amounts stored over the winter. To date the runoff <br /> has been very effective and efficient and has allowed for good <br /> deliveries to most ditches. The dry spring caused many RIO GRANDE NR. DELNORTE <br /> problems but most have recovered at this date. 1., . .`-°""Y'" '"E'" <br /> 1 <br /> Outlook: 0.0 - , <br /> The outlook for the rest of July appears to be near 1 a.a <br /> normal flows. By the end of July rivers should be at base i 3.7 <br /> flows and most all of the reservoir water should be depleted. •o I f' <br /> This will allow only a few of the most senior rights to IP <br /> 1 a 0 5 <br /> continue to divert. 0.4 <br /> 0.3 <br /> Administrative/Management Concerns: 3 2 - �' <br /> The forecasted flows for the Rio Grande Basin were a., <br /> downgraded all spring but are not being confirmed by actual - <br /> Oct <br /> Nov Osc Jan Feb Mr ch Ace 1I hay June July Aug Soot <br /> flows. The actual April through September flows for most MONC1077,TH <br /> forecasted streams are going to be substantially higher than MOT"107/ 4. °"� A� ' <br /> the forecast. This has caused a change in our administration <br /> of the Rio Grande Compact by raising the <br /> amount of water which needs to be delivered to the stateline. <br /> This will result in additional curtailment of decreed rights to Rio Grande Basin Reservoir Supplies <br /> meet out Compact obligations this calendar year. 40 <br /> 35- <br /> Public Use Impacts: <br /> Unless substantial rainfall occurs during the next few i 30- <br /> weeks,rivers and reservoirs will continue to drop in stage and i n 25- <br /> will provide less use to the public. Peak flows from snowmelt .1 �' <br /> runoff are behind us and good fishing flows are here. Some a l 20 / <br /> r <br /> 11 <br /> reservoir releases are still going to occur over the next month " 15 <br /> //\/\ <br /> and will affect river flows on the larger streams. 3 r <br /> Flo Grande Platoro Saert•Mor fa <br /> ® AVg. ai 30 content, ® V 301*1 Cartanta <br /> 5 <br />