Winter Storm in Bighorn Mountains West, Wyoming

Winter Storm February 20, 2015 – February 21, 2015 · Bighorn Mountains West, Wyoming

What the National Weather Service wrote

The SNOTEL site at Middle Powder River estimated 12 inches of new snow.

The wider storm

An upper low over central Canada provided for a 24 to 36-hour stretch of unstable northwest flow aloft across Wyoming. This flow pattern favored heavy snow on the west side of the Bighorn Mountains and in the Nowood River Valley from Ten Sleep south to around Big Trails. Snowfall in these areas topped one foot with other amounts of about 8 to 10 inches. Heavy snow of 6 to 8 inches also fell in Lander while the adjacent foothills of the Wind River Mountains received 12 to 14 inches.

Source: NOAA Storm Events Database, event 554042. Narratives are written by the National Weather Service forecast office that issued the report.

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