Statewide snowpack or snow water equivalent (SWE) averages increased to 89% of median as of Monday — still below normal for this time of year.

There were 15% to 20% gains in SWE across basins in northwest to north central Wyoming over the past week, according to Wyoming Natural Resources Conservation Service hydrologist Jim Fahey. All mountains across Wyoming will have decent chances for snow in the coming days, especially during the middle of the week and lasting through next weekend. The highest amounts of snow look to be in the western (Tetons) and southeastern (Sierra Madre) mountain areas. The Yellowstone River Basin is currently at 109% of the 30-year median and the Bighorn River Basin stands at 99% of median.

For the same period last year, the Yellowstone Basin was at 112% and the Bighorn Basin was at 133%.

The South Platte Basin, in the southern part of the state, is currently at 18% — off nearly 100% from the same point last year, when the snow water equivalent stood at 116%.

The reference period for computing medians/averages is the 30-year period of 1981 through 2010.

— By Mark Davis