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1. 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 near normal. This represents a significant 5 Rio 1}andi B°AIn <br /> improvement from conditions on December 1, 1989. _ <br /> Snowpack measured on December 1, 1990, was 94% of 3_ • <br /> normal. Precipitation measured 134% of normal for the , , I <br /> month of November. Streamflow conditions on the Rio 2- _ :. ..Grande and its tributaries in the San Luis Valley were above I '- f normal in November. Flow at the ke station RioY gaBmS Grande near Del Norte, averaged 338 cfs for the month of i\R. <br /> ItiiiNovember as compared to the historic monthly average of 2b4 cfs. Above normal storage occurred in basin reservoirs "� • <br /> • <br /> in November but overall storage was only 73% of normal on -'-December 1, 1990. Soil moisture conditions remain high. -+ ,....... . ... T�m � ...,. ..... <br /> .WN, JAN11Q JAN�3 JAN94 JMS5 JAIN1 J111197 JANM JA NS JAN90 JANl1 <br /> As a result, ground water return flows are expected to m,,,,wrl, <br /> increase in the spring. <br /> Outlook: <br /> Abnormally warm and dry conditions have reduced - <br /> the November snowpack. Adequate storage capacity exists _ RID GRANDE NR. DEL NORTE <br /> for normal to above normal runoff. 91 <br /> n- <br /> ,9- 7//f <br /> Administrative/Management Concerns: � ;; <br /> The Rio Grande and Conejos Rivers are both .....- <br /> currently in reasonable status under its Compact obligation. 14 <br /> The Closed Basin Project continues to make deliveries to the 11 <br /> Rio Grande which helps Colorado in meeting its overall il ii <br /> 1° <br /> 9 <br /> Compact commitments. a <br /> If 0 <br /> Public Use Impacts: i 3 <br /> Recreational uses at basin reservoirs have been 8 <br /> diminished due to falling water levels. Flow in the Rio 0VI- milRia3E A <br /> Grande mainstem has been adequate to sustain the fishery. IS"°V' 1` <br /> Rio Grande Basin Reservoir Supplies <br /> 17,3 <br /> 14- <br /> 13- <br /> 1 11 <br /> !I : X , <br /> • 8 <br /> 4 \\ /\ <br /> 3../..\ <br /> Ala Orana! PIAtdo SantaWar is <br /> ® ARQ. 11/30 Contents ® 11/30/90 Contents <br /> 5 <br />