Casper, Wy – Without heavy snow in the high country this winter, reservoir levels on the North Platte River will drop beneath already dangerously low levels. That's according to John Lawson of the U-S Bureau of Reclamation. Lawson says Seminoe Reservoir is only a third full and Pathfinder is just at 20 percent capacity. He fears Pathfinder could empty completely without a heavy winter snowpack. Lawson says irrigators in eastern Wyoming will probably be out of water by the end of this month. The good news is the Shoshone and Big Horn basins in northwestern Wyoming are faring better at 62 percent of average inflows. And in western Wyoming, Snake River flows are holding fairly steady.