The current weather pattern continues to bring precipitation to Colorado, lifting more than 12% of the state out of drought conditions and lessening drought severity in the rest of the state, according to today's U.S. Drought Monitor report. The report categorizes most of the Arkansas Basin as abnormally dry with with only a thin sliver of severe drought along the Oklahoma state line.
The CoCoRaHS (Community Collaborative Rain, Hail and Snow) Network reports the following precipitation amounts for the past week:
Water storage in Pueblo Reservoir remains little changed this week – 184,178 acre-feet, or 57% full – according to data from the U.S. Bureau of Reclamation. Water storage in Turquoise Lake decreased to 97,904.2 acre-feet or 75.7% full. The water level in Twin Lakes increased to 106,773 acre-feet, also 75.7% full. With Voluntary Flow Management Program (VFMP) targets for recreational boating done for 2022, the Bureau of Reclamation has reduced releases from Twin Lakes to its 15 cfs minimum flow. Data for John Martin Reservoir is not available at this time.
Arkansas River flows near Leadville declined to 52.7 cfs this week, while the gauge below Granite currently registers 274 cfs. The flow at the Wellsville gauge is 440 cfs with an almost identical flow of 444 cfs at Cañon City. The river flow below Pueblo Reservoir has dropped to 258 cfs, and the gauge near Avondale reports 408 cfs after peaking at 860 cfs this past week. The gauge near Rocky Ford reports 73.6 cfs after peaking at 217 cfs Monday. Flows are 82.4 cfs below John Martin Reservoir but held steady at a high of 256 cfs Saturday through Monday. The gauge at Lamar currently reports 27.6 cfs after spiking to 94.5 cfs just before midnight Monday.
The Arkansas Basin currently has 15 calling water rights, including the usual number, four, on the mainstem: the Catlin Canal (1884 priority), the Lamar Canal (1886), the X-Y Irrigating Ditch (1889) and the Arkansas River Compact call at the Kansas state line. The most senior calling water right is the Tom Wanless Ditch (1864) at the confluence of Fountain Creek and the Arkansas River. Next in seniority is the Gonzales Ditch (1866) on the Apishapa River, followed by the Coleman Ditch (1867) on Hardscrabble Creek and the Pulaski Ditch (1868) on the Purgatoire River.
Additional calling water rights include the Adams Ditch (1869) on Fourmile Creek, Hill Ditch (1873) on Howard Creek, the Cottonwood and Maxwell Ditch (1874) on Cottonwood Creek, the Marmaduke Ditch (1878) on Stout Creek, the Dotson Ditch No. 1 (1881) on the St. Charles River, the Hoosier Ditch (1882) on the North Fork of the South Arkansas River and the JM Murray Ditch (1887) on Muddy Creek.
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