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r► , <br /> t. <br /> SAN JUAN/DOLORES BASIN March, 1999 <br /> I <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 0.0 indicates that for February the SAN JUAN/DOLORES RIVER BASINS <br /> basin water supplies were near normal. The Natural s s�+�« _—sic 4nd.r NLtory <br /> Resources Conservation Service reports that March 1 ,_ <br /> snowpack is 74% of normal. Flow at the gaging station _ ,_ <br /> w 3- <br /> Animas River near Durango averaged 211 cfs, equaling the ;. . . � ; <br /> long term average of 211 cfs. Storage in McPhee, Vallecito, '- ` -; <br /> and Lemon reservoirs totaled 102%of normal as of the end of 4 1- <br /> February. i_ 0 . „v.-T.-it jkl, -- <br /> —r— /yip <br /> February continued the string of below normal _,_y : P ., k precipitation and above normal temperatures that has defined <br /> this winter. The only precipitation that occurred during the o _2 I <br /> month was for 4 of the first 11 days of the month. Durango _3 A <br /> received only 49%of the normal monthly precipitation,a little r <br /> JAN90 JAN91 JAN62 JAN93 JINN JAN95 JAN96 JAN97 JAMB JAN99 <br /> more was received in the mountains. In general the snowpack It7PRWYEAR <br /> is poor, but still 4% more than at this time last year. <br /> Temperatures in Durango stayed well above average during <br /> February. The average high was 5.9° above the long term <br /> normal high, and the average low was 6.4° above the long <br /> term normal low. ANIMAS RIVER NR. DURANGO <br /> Stream flows were typical for the time of year, 190 FLOW BY WATERYEAR <br /> running near normal levels throughout the area. ,�_ <br /> Reservoir storage at Vallecito and Jackson Gulch 160 <br /> 150 <br /> Reservoirs remains above average, but storage in Lemon i 140 <br /> Reservoir remained at 85% of average. 4^ ;30 <br /> 20 <br /> Because of the warm temperatures and early low level A 110 <br /> �� 100 _ <br /> snow melt, soil moisture conditions are good for this time of µ g 90 � <br /> year. w 90 <br /> 3 70 <br /> 50- <br /> Outlook ,D <br /> None. 3D <br /> @0 <br /> 10 <br /> Oct Nov Dec Jan Feb March <br /> Administrative/Management Concerns 1p,,,�, <br /> None. a WET C1973) a GAY C1977) A AVG N 1999 <br /> Public Use Impacts <br /> Ski conditions have been reported as icy at some local <br /> ski areas. The Hesperus ski area closed already due to the REPRESENTATIVE RESERVOIRS <br /> lack of snow. -►NIMAS BASINS <br /> 240 <br /> 220 Z.\ <br /> ! 200 <br /> 100 <br /> d <br /> 140 <br /> l'2 120 r/v ,/ ,//\\\\\ <br /> s 1D0 <br /> 90 A\ <br /> 40 <br /> 20 <br /> 0 %\ i /. \kt•Phee Va i 4 Yc 4 to L«nn <br /> \ ® Avg. 2/25 Contents ® 2/2w99 contents <br /> 9 <br />