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, <br /> ARKANSAS BASIN <br /> Basinwide Conditions Assessment 1 <br /> The SWSI value of +2.6 indicates that the current SURFACE WATER SUPPLY INDEX <br /> conditions. are above normal. Streamflow is the key S remiss p'"` <br /> component in this basin in computing the SWS1 value. <br /> Precipitation for the month of October was 117% of normal. ;. <br /> Flow at the key index gaging station, Arkansas River near Q ,.,. . <br /> Portland, averaged 484 cfs for the month of October as '- - ; ' -• _ : <br /> compared to the historic monthly flow of 429 cfs. Storage in 1 1- -- - : = - . '- <br /> the upper reaches of the basin in Turquoise Reservoir and 1 o 1 �ij, <br /> Twin Lakes Reservoir is approximately 30% above normal -,- 1 ' <br /> while storage in the lower reaches of the basin in Pueblo ,. _�- ; ea,-,Reservoir and John Martin Reservoir is approximately 5096 0 <br /> below normal. Usable storage in Pueblo Reservoir was -'- <br /> approximately 57,000 acre-feet on November 1, 1990. About <br /> JAM J.,.. JAMS JMO4 JAMS 4,.47111 JANIP 4•17118 -war -Imp .1W011 <br /> 80% of this is project water. Usable storage in John Martin 441,N7nW <br /> Reservoir is down to approximately 17,000 acre feet. <br /> Irrigators report higher than normal soil moisture conditions <br /> being carried over into 1991. <br /> Oudook: ARKANSAS RIVER NR. PORTLAND <br /> The outlook for November is normal to above normal <br /> conditions. Early snowpack has developed in the upper 2, V <br /> basin. Available storage capacity is high in the lower basin "' <br /> IT 20 <br /> to compliment normal to above normal runoff. The winter Mu�!„ <br /> el effective drought '1 n� <br /> water storge program is an extremely Sh <br /> management tool. „ <br /> Administrative/Management Concerns: 11 " <br /> ia <br /> The winter water storage program decree (Case No. a° <br /> 84CW179) became final on November 10, 1990. No protests . <br /> were filed by the August, 1990 deadline. The winter water <br /> storage program runs from November 15th through March . <br /> Ai . A <br /> 15th. The call on the Arkansas River mainstem will be o N A <br /> March 1, 1910 throughout this period. <br /> Public Use Impacts: <br /> Water based recreation has been significantly <br /> impacted at Pueblo Reservoir, John Martin Reservoir and <br /> Trinidad Reservoir due to falling storage levels. <br /> Arkansas Basin Reservoir Supplies <br /> 1i• <br /> 110- <br /> 1aa- %f <br /> / <br /> ki n. <br /> 1t MI <br /> 119 io <br /> 30 '\/.\ <br /> 0 <br /> • J07M,Ia-U 7 Ikanle Argolis Tuft.Lamm <br /> ® p q.ISM d77a7ns ® itii3v50 caste7Rs <br /> 4 <br />