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RIO GRANDE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of -0.5 indicates that for May the R I O GRANDE BASIN <br /> basin water supplies were near normal. The National Weather ; s '"'ers later Supply <br /> Ind.Mowry <br /> Service reports May precipitation at 142% of average. The . <br /> Soil Conservation Service reports June 1 snowpack at 40%of us _ <br /> average. Reservoir storage measured on June 1 was 110%of 3 . . , <br /> ,� <br /> average. Flow at the gaging station, Rio Grande near Del " '_. - ,_ a <br /> Norte, averaged 2239 cfs for the month as compared to the f <br /> 1961-1991 May average of 2436 cfs. The Conejos near d a ._ ,.'�" 1 '�y ' 4�ti. <br /> Mogote averaged 800 cfs. The spring warming trend was _,_ a ✓./ ; <br /> continued through the first two-thirds of May with daytime _ <br /> highs around 72 degrees on the valley floor. During the last C <br /> third of the month the high temperatures dropped 3 <br /> substantially and precipitation was plentiful. Rain fell on T -T , <br /> JANS3 JANSA JANOS JANSG JAN87 JANBS JAMS JANSO JADE, JAN22 <br /> Alamosa 9 out of the last 10 days of May bringing 1.13 inches YEAR" „ <br /> of precipitation. <br /> Outlook <br /> Spring winds and above normal temperatures had <br /> drastically depleted mountain snowpack earlier in May. The R I 0 GRANDE NR. DELNORTE <br /> clouds and cooler temperatures the last part of the month 1., - FLOW IN WATER <br /> YEAR <br /> ,-a----4 <br /> brought snowfall to the surrounding mountains. This snowfall <br /> will add little to present river flows but should increase the 02 <br /> mid-summer flows slightly. i o.a . <br /> a <br /> Administrative/Management Concerns a ta.. . —I. <br /> Because of the early loss of snowpack flows in both .- a <br /> the Rio Grande and the Conejos River have been below i <br /> normal. Howerver,due to the unusually high amount of snow 0.3 <br /> on the valley floor this winter and the late season rains last 0.2 <br /> fall, Colorado is doing very well on its Rio Grande Compact 0,, <br /> obligations. According to the latest streamflow projections, it 0 <br /> Oct Nov Doc Jan Fob March /brit Lay Juno July Aud Soot <br /> appears that Colorado's obligations will be easily met. MOWN <br /> 0 Silt C4SS77 + CRY C40773 • AVG a ,sat <br /> Public Use Impacts <br /> The latter part of May is traditionally the start of <br /> summer tourist season in the San Luis Valley. Both tourists ' <br /> and locals alike are beginning to enjoy summertime activities REPRESENTATIVE RESERVOIRS <br /> such as camping, hiking, fishing, and rafting. Even though 35 RIO OHlo@ BASIN <br /> the river flows are below normal,they should provide enough <br /> water for a full summer of fun and enjoyment. 30- <br /> i 23. <br /> .1 2D <br /> I <br /> Mg ,s <br /> •V <br /> 3 io..,././..\ <br /> Rio Grande Plater* SantaAart■ <br /> ® AVM. 513,cont•nta ® 1031112 Contents <br /> 5 <br />