DWR_4151900 - Laserfiche WebLink

1 SAN JUAN/DOLORES BASIN January, 1999 ` Basinwide Conditions Assessment: The SWSI value of-0.9 indicates that for December SAN JUAN/DOLORES RIVER BASINS the basin water supplies were near normal. The Natural 5 - 5�'•«�.t.r Supply Index"!•torY Resources Conservation Service reports the January 1 4_ snowpack is 96% of normal. Flow at the gaging station - 71 1 • w 3- 1 Animas River near Durango averaged 290 cfs, as compared to 1 F L. �- - the long term average of 227 cfs. Storage in McPhee, 2- 7.1 "- ,-!. Vallecito, and Lemon reservoirs totaled 100%of normal as of i .1- , . „--• --�.-- , the end of December. ' lib_ __ —_,_, p. . December was fairly uneventful as weather went. The , »1 tl 1: ]]] i only precipitation that occurred was in the first 10 days of the ,,�, f month. Durango ended the month with only 5% of normal o -2^" precipitation. A little more accumulated in the mountains,but 3 in general precipitation was poor. — ( JAN90 JAN91 JAN92 JAN93 JANS4 JAN95 JAN95 JAN97 JAN618 JAN99 Temperatures in Durango stayed above zero all ...YEAR month, and even stayed moderate after a subzero cold front moved into most of the state just before Christmas. Average temperatures were 3°to 5°above normal. Ice on many lakes and ponds did not set up well and there was one fatality on _ Electra Lake from poor ice conditions early in the month. ANIMAS RIVER NR, DURANGO Stream flows were typical for the time of year, 190 FLOW er WATER YEAR running at base levels. Reservoir storage continued but little 170 was gained during the month. 160 - Because of exposure due to the low snowpack much o of the soil moisture in the lower elevations dried up and the 120 ground was powdery in many places. ;g 110 'i 100 g90 ..------.1 Outlook _° � S 70 None. 1 60-. �� 50 A0 Administrative/Management Concerns 30 20 . None. 10 . — Oct Nov 0ac Jan Fob March 14 NTH Public Use Impacts [1973) p ORy(1977) O AVG % 1999 Ski conditions were fair to good. Wolf Creek Ski area showed twice as much snow at the next closest resort. The result was that near record skier days (5,000) were seen there by the end of the month. All resorts in the Division were REPRESENTATIVE RESERVOIRS faring well compared to other parts of the state. However,the 280 0oL0i7ES-ANIMAS BASINS outlook for skiing was not good if more snow does not fall in 260 %2' the near future. Other ski areas began to gain base due to 240,/ \ 220- storms over the new year weekend. = 2°0 ye/\\ u 190_v///N\ din •.1 160 r140 //-\\ - 120 96 60 j AO 20 // \\ // \\ %///^�\\\ McPhee Va I l oc I to Lemon ® Avp. 12/31 Contents ® 12/31/99 COnt.nta 9