Spring Run-off Diminishes
The National Weather Service hydrologist for Wyoming is reporting diminishing water run-off statewide as the result of above normal temperatures and below normal precipitation over the winter. Hydrologist Jim Fahey says mountain snowpack across Western Wyoming was between 70 and 103 percent of normal by early April. Snowpack “water” numbers or snow water equivalent figures there at the beginning of April were among the highest—varying between 70 and 95 percent of normal. Consequently, Fahey says normal to just above normal snowmelt stream-flow volumes continue to be expected across major basins across northern Wyoming—which includes portions of the Snake River Watershed. At this time, Grassy Lake Reservoir is 83 percent filled, Jackson Lake is at 77 percent of its capacity and Palisades Reservoir has risen to 76 percent of its storage capacity.
