(Casper, Wyo.) – The Natural Resources Conservation Service in Casper is reporting snow water equivalencies (SWE) in the state remain above the median and ahead of last year at this time. In this 12th week of monitoring, the statewide median is 122 percent, compared with last year at this same week at 79 percent.
In the Wind River Basin, snowpack is at 108 percent compared to 106 percent last week and 99 percent one year ago. The Sweetwater River Basin showed an increase of one point from last week, now at 83 percent of median, which is less that one year ago when it was 96 percent.
See the chart below:
The National Oceanic and Atmospheric Administration, NOAA, released it’s Water Supply Outlook for the spring and early summer today, based on the NRCS water basin data. According to NOAA, Near normal (90 to 110 percent) snowmelt streamflow volumes are expected across almost all major basins across Wyoming. Above average streamflow volumes are expected across the Powder River Watershed. However, the Lower Green, Sweetwater, and lower portions of the Wind River Basin are forecasted to have below normal streamflow volumes during the upcoming snowmelt season.
Reservoirs storages across Wyoming are slightly below average for January.