As of 7am April 4, 2013: Volume = 1,143,400 acre feet which is 65.6% of capacity.
Last year, April 4, 2012: Volume = 1,448,900 acre feet which was 83.1% of capacity.
The following two graphs show the elevation of Lake McConaughy for the last 12 months as well as since 1941.
Although the current level of the reservoir is midway between capacity and the low mark of 2005-2007, the concern at this time is the below normal snow pack in Wyoming that feeds into the North Platte River and ultimately the Lake McConaughy reservoir. The last image on this page which shows that the water content in the snow pack that would feed into the North Platte River. No where in the Platte River basin in Wyoming (or Colorado) is there above normal water content in the current snow pack.
Photo by Ken Dewey, UNL