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Winter Storm in Northeast Bighorn Mountains, Wyoming

Winter Storm October 17, 2020 – October 19, 2020 · Northeast Bighorn Mountains, Wyoming

What the National Weather Service wrote

Snowfall of 10 to 16 inches occurred in the mountains.

The wider storm

An early season arctic airmass arrived into the Billings Forecast Area during the 3rd week of the month. At the same time, a very strong upper level disturbance within an unstable northwest flow aloft was situated over south central Montana and northern Wyoming. The combination of these factors brought heavy, wet snow to a large portion of the forecast area.

Source: NOAA Storm Events Database, event 920673. Narratives are written by the National Weather Service forecast office that issued the report.

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