Laserfiche WebLink
r <br /> SAN JUAN/DOLORES/ANIMAS BASIN <br /> Basinwide Conditions Assessment: • <br /> The SWSI value of +1.6 indicates that for December SAN JUAN/DOLORES/ANIMAS RIVER BASINS <br /> the basin water supplies were above normal. The National 5 gw'"'""'r 'Y Index""`°'' <br /> Weather Service reports December precipitation at 93% of 4- <br /> average. The Soil Conservation Service reports January 1 k ;` - <br /> . 3- + I <br /> snowpack at 109% of average. Flow at the gaging station, jrr.. . <br /> Animas River at Durango, averaged 219 cfs as compared to 2- • :-- A <br /> the 1961-1990 December average of 229 cfs. Basinwide 1 ::: w n <br /> reservoir storage was 140% of average on January 1. Four ,b, <br /> 0 `}'' i,.. , -k4.. <br /> sizeable events occurred duringDecember ,.. <br /> precipitation <br /> consisting of wet snow storms or storms followed by melting - - <br /> periods which left soil moisture at high levels. Several inches o 2- J <br /> - <br /> of snow was on the ground at Durango in early January. The -3 <br /> better snowpack is being seen in areas of the Dolores river , - - -- . ---- <br /> JAN83 JAN84 JAN95 JAN96 JAN97 JAN99 JAN99 JAN90 JAN91 JAN92 <br /> drainage and in the south San Juans. Reservoir storage is IENTHIYEAR <br /> running 53%-63% of useable capacity in most larger <br /> reservoirs. Navajo reservoir is currently at 92% of capacity <br /> and may be expecting an extended period of higher releases <br /> through spring. <br /> ANIMAS RIVER NR. DURANGO <br /> Outlook: <br /> FLOW 9'1'1YATER YEAR <br /> u '190 <br /> Outlook is currently for excellent water supplies in the 170 <br /> upcoming summer irrigation season. 160 . <br /> 150 <br /> I140 <br /> Administrative/Management Concerns: - ;2 <br /> Reservoirs are continuing to hold above average o 1 ;oo <br /> amounts of water. If heavy snowpack continues prospects are W g 90 <br /> high that reservoirs will be able to store near capacity s 70 <br /> amounts next year, which would contribute to extending 1 60 <br /> sn <br /> higher stream flows into July. 40 <br /> 30 <br /> 20 <br /> 10 <br /> OGt Nov Ow Jan Feb March <br /> MONTH <br /> MET YEAR(1973) T DRY YEAR(1977) o AVG A 199 <br /> REPRESENTATIVE RESERVOIRS <br /> OOLOIES-ANI MMS BASINS <br /> 300 <br /> 290- <br /> 2fio- <br /> 240 /�` <br /> = 220�/ <br /> 200, <br /> i <br /> gn 100 <br /> a.• 160 <br /> •1 140 <br /> a� 126 <br /> .." <br /> i 100 <br /> j <br /> 40 <br /> 20 " <br /> MC PMr. V.I I K 1 t0 Lemon <br /> ® Ar4. 12/31 501599t. ® 12/31/91 Content. <br /> 9 <br />