Heavy Snow — North Laramie Range, Wyoming

2021-10-12 to 2021-10-13 · North Laramie Range, Wyoming

Event narrative

Estimated 12 inches of snow accumulation at Windy Peak SNOTEL site (7900 feet elevation) with 0.8 inches of snow water equivalent and 15:1 snow ratios.

Wider weather episode

Strong mid-October low brought heavy snow, strong winds, and blizzard conditions to southeast Wyoming. Areas west of the Laramie Range received 4 to 10 inches of snowfall with areas in the Snowy and Sierra Madres mountains receiving higher amounts. Precipitation remained light across Laramie County with around an inch of snowfall, but wind gusts approached 65 MPH. Farther north, heavier snowfall was observed with around 10 inches of snowfall mixed with strong winds resulting in whiteout blizzard conditions, especially in Converse and Niobrara Counties. Interstate 25 north of Wheatland was closed for around 12 hours due to winter conditions.

Source: NOAA Storm Events Database, event_id 986635. Narrative written by the NWS forecast office that issued the report.