Laserfiche WebLink
ARKANSAS BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of -0.9 indicates that the current SURFACE WATER SUPPLY INDEX <br /> conditions are below normal. Snowpack measured 82% of a Arkansas RI ver Sao'n <br /> I <br /> average on February 1, 1991. Precipitation for the month of ,- <br /> January was 63% of average. Flow at the key index gaging W a- <br /> 4 `: 11 <br /> station,Arkansas River near Portland,averaged 453 cfs for the - t :, <br /> .f 1 ir, <br /> month of January as compared to the historic monthly flow of 2- : :: E C ; *I <br /> 339 cfs. Reservoir storage measured on February 1, 1991,was '- �' ' '` ' y -:. <br /> u Storage in the upper reaches of the basin a �. r�- •�- <br /> 123/o of average. S g pp � <br /> k-t.: <br /> in Turquoise Reservoir and Twin Lakes Reservoir is 303% of _,_ ti <br /> average while storage in the lower reaches of the basin in ( <br /> Pueblo Reservoir and John Martin Reservoir is 120% of o <br /> average. Usable storage in Pueblo Reservoir was 130,800 -3- <br /> acre-feet on February 1, 1991. Capacity is 354,000 acre-feet. .. .. <br /> JANB1 JANB2 JAK03 JANB4 JA4BS JANBB JANB7 -Imes JANB9 JANDO JAN91 <br /> Usable storage in John Martin Reservoir was 42,500 acre-feet ACMTW YEAR <br /> on February 1, 1991. Capacity is 616,000 acre-feet. Winter <br /> water storage increased by 102,209 acre-feet between ' <br /> November 15, 1990, and February 1, 1991. This represents a <br /> net increase of 17,277 acre-feet for the month. The total <br /> amount of water stored under this program last year was ARKANSAS RIVER NR. PORTLAND <br /> 129,584 acre-feet. iso FLOW 13Y WATER YEAR <br /> 140 <br /> Outlook: 130 <br /> 120 <br /> Available storage capacity remains adequate in thei ,10 <br /> lower basin to compliment normal to above normal runoff. Y� 1cio <br /> The streamflow forecast is highest in the Huerfano River o A 90 - <br /> drainage at 106% of average to a low of 75% of average on LL g .0 <br /> t. <br /> the Arkansas River above Pueblo. I <br /> 50 <br /> Administrative/Management Concerns: 40 <br /> The winter water storage program runs from 30 <br /> November 15th through March 15th. The call on the 20 <br /> OCt haw WC Jan Fob rbrCh <br /> Arkansas River mainstem will be March 1, 1910, throughout MONTH <br /> eET TEAS(19114) { CRT YEAH C 1977) O AVG G 199 <br /> this period. <br /> Public Use Impacts: <br /> Water based recreation at Pueblo Reservoir and John <br /> Martin Reservoir is expected to improve for the 1991 season. Arkansas Basin Reservoir Supplies <br /> Storage in Trinidad Reservoir (12,000 acre-feet) is 150 <br /> significantly below the average (usable) contents for February 1 �/ <br /> 3G_ <br /> 1st of 29,100 acre-feet. Reservoir inflow for the runoff season 120- <br /> upper is projected to be 41,000 acre-feet. Storage in the u pp basin - <br /> , 1 <br /> reservoirs, Turquoise and Twin Lakes, was a combined br, 0- <br /> (usable) 171,000 acre-feet. This is considerably above average .-1 90 / <br /> \ <br /> and above last year. Water transfers to Pueblo Reservoir 70 <br /> „.1 BO <br /> duringthe summer months will enhance recreation on the 2 50 <br /> sA A / <br /> upper reaches of the Arkansas River. g 4a 30 / <br /> 4k : , <br /> 20/\ <br /> 10 <br /> a <br /> John Martin Pusi10 TrouolN Twin Lakes <br /> 1 ® AVq. 1/31 Contents ® 1/3V91 Contents <br /> it <br /> a <br /> 4 <br />