CHEYENNE – February precipitation totals across Wyoming were 165 to 175 percent of average. Precipitation numbers varied between near 290 percent of normal over the Wind River Drainage (central Wyoming) to near 70 percent of normal over the Belle Fourche River Basin (northeast Wyoming).  Current water year (October 2016 – February 2017) precipitation across Wyoming is 135 to 145 percent of average.
Mountain snowpack across Wyoming was 125 to 135 percent of median by early March.  Snowpack “water” numbers and/or SWEs were the highest across basins in central through southwestern Wyoming—varying between 160 to near 200 percent of median.  SWEs across basins in northeastern Wyoming were 70 to 105 percent of median.
Above to much above normal (155 to near 170 percent) snowmelt streamflow volumes are expected across almost all major basins across Wyoming.  Well above average snowmelt streamflow volumes are expected across the Snake, Wind, Sweetwater, Shoshone, and Upper Green Watersheds. The Powder and Tongue Drainages are forecasted to have slightly below to near normal streamflow volumes during the upcoming snowmelt season.
Reservoirs storage across Wyoming remained above average at 120 to 130 percent
for March.