Wyo. snowpack up to 91 percent

SHERIDAN — Mountain snowpack and associated snow water equivalents across Wyoming increased to 91 percent of average as of April 16, according to figures released this week by the National Oceanic and Atmospheric Administration.

Snow water equivalents at peak runoff elevations — areas between 8,000 and 9,500 feet above sea level — were highest across northern Wyoming at around 90 to 105 percent of normal while in the southern part of the state, those numbers were lower at 75 to 95 percent of average at the same elevations.

With the exception of areas along the Powder River Drainage and eastern portions of the Big Horn Basin where flooding potentials look to be moderate, most headwater basins across Wyoming can expect a generally low potential for flooding as the result of this year’s spring snowmelt.

The NOAA’s outlook is based on various hydrological factors including snowpack, basin morphology, the extent of burn scars from fires, the amount of bark beetle kill and likely precipitation trends during late spring and early summer.

The next graphical outlook will be issued sometime around May 10.

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