DWR_4151766 - Laserfiche WebLink

. 'i • SAN JUAN/DOLORES/ANIMAS BASIN w Basinwide Conditions Assessment: The SWSI value of+2.9 indicates that for March the SAN JUAN/DOLORES/ANIMAS RIVER BASINS Swf•c.Water Supply Incl.Mt•tory basin water supplies were above normal. The Soil S Conservation Service reports March 31 snowpack as 149% of 4 normal. The National Weather Service reports March W 3 ' X precipitation as 77%of normal. Storage in McPhee,Vallecito, , :� , F.: J: ,r: . ` , r and Lemon reservoirs totaled 122% of normal on March 31. 'L P': : • Flow at the gaging station Animas River near Durango 1 I ^r'-1 , . r- - I� —F averaged 430 cfs as compared to the 1961-1991 March i 0 — "lL average of 288 cfs. The Dolores River at Dolores averaged V 010 , 300 cfs compared to its long term average of 122 cfs. 11 March was warmer and dryer than normal in the o 2 i i. basin. In Durango the median temperature was 2.9° above _3 normal. A warming trend began on March 16 which -4 ............... JAN94 JANOS JAN96 JAN87 JAMB JAN99 JAN00 JAN91 JA1O2 JAN03 combined with light rain on the 18th and 19th to cause MONTH/TEAFI localized flooding. Areas hardest hit were on the Florida Mesa southeast of Durango. Several homes sustained minor damage, and a non jurisdictional dam was overtopped and partially breached. Six months into the water year Durango has 189% of normal cumulative precipitation. ANIMAS RIVER NR. DURANGO FLOW EN WATER YEAR 190 190 Administrative/Management/ Concerns: 170 .......„...„.....,;,,,,,,,,_,J1 Reservoir storage ranges from 56% of normal at 160 Vallecito to 147% at McPhee. Vallecito Reservoir has been 1140 0 purposely lowered in anticipation of a heavy spring runoff. + 130 " n 120 110 p I 100 1. • -V 90 SO 40 TTC. MONTH O WET(1973) 0 OM(1977) ♦ AVG X 1993 REPRESENTATIVE RESERVOIRS 001.0FES-ANIIAAS RIVER OWNS 340 320- 300-, 280- §: 190 % Mt 140i///://2 • 120 100 90- eo /\ 0 WN\ McPhee Val I•c I to L•ad7 ® Ave. 3/31 Oontsnt. ® 3/3v93 Contents • 9