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<br />I' <br />I <br />; <br /> <br />SAN JUAN/DOLORES BASIN <br /> <br />Sep-04 <br /> <br />} Basinwide Conditions Assessment <br />The SWSI value of -2.9 indicates that for August the <br />basin water supplies were well below normal. Flow at the <br />gaging station Animas River near Durango was 285 cfs. as <br />compared to the long-term average of 564 cfs. Storage in <br />McPhee, Vallecito, and Lemon reservoirs totaled 84% of <br />normal as of the end of August. <br />The water supply situation for Southwestern <br />Colorado did not improve much during the month of August. <br />Precipitation did not occur in significant amounts, although it <br />was distributed throughout the month. The 0.96 inches of <br />moisture recorded in Durango was 38% of average, leaving <br />the yearly total from October 1, 2003 at 106% of normal. <br />River flows were well below normal. 50% or less in <br />most streams. The Dolores River ran slightly above normal <br />because of releases from Groundhog Reservoir to allow for <br />repairs this fall. At the end of the month, the Animas River <br />flow was only 198 cfs and La Plata at Hesperus was 4.8 cfs. <br />The La Plata Compact became undeliverable on August 18 <br />and the stream bed dried up for the major reach after that. <br />No freeze occurred in Durango; however, the high <br />temperatures were lower than normal by 20 (81.aOF) and the <br />low temperatures were slightly higher than normal. <br /> <br />Outlook <br />Reservoirs were being used but supplies were <br />holding up and it appears that there will be a significant <br />carryover amount available to the large reservoirs in the <br />next year. <br />The current outlook is for continued drought <br />conditions until the dry cycle is broken. <br /> <br />"'H""" <br /> <br /> <br />. <br /> <br />w <br />~ <br />> , <br />~ <br />o <br />z <br />- ., <br />~ <br />o~ <br /> <br />. <br /> <br />. <br />~.ma;.BH:I7~.H1-9:lJlnOOJIn01Jlr1.02..tr..mJ;n.04 <br />"'..,,"'" <br /> <br />.eN~ R\ffi r.R D...PJIN3J, A..aAJ BY W\1IR 'r'ElR <br /> <br /> 1.<XX>.OCD <br />~ IIXl,OCD <br />~ <br />~ !lXl.OCD <br />~ <br />u. <br />w <br />> 4OO.OCD <br />3 <br />=> <br />:; <br />=> ax>.OCD <br />u <br /> <br /> ----- >--- <br /> / <br /> / <br /> / <br /> 1/ ~ -I <br /> ?-" <br /> ~ V ! <br />......-- ......- ,/' ---- <br /> <br />o <br />Q1""''''''.mFilb.......''''.............,,'''''''''' <br /> <br />-e-'lET(1973) <br /> <br />~CRY= <br /> <br />......AY3 <br /> <br />*-3X>4 <br /> <br />REPRESENTATIVE RESERVOIRS <br /> <br />300.000 <br /> <br />"".000 <br /> <br /> <br />]200000 <br />. . <br />~ <br />1'50.000 <br />~ <br />. <br />i 100,000 <br />" <br /> <br />50.000 <br /> <br />o <br /> <br />""""" <br /> <br />V""""" <br /> <br />"""" <br /> <br />.AYg. &'31 Contents <br /> <br />DOO1I04ConB1lS <br /> <br />9 <br />