Winter Storm — Northern Sweet Grass, Montana

2022-02-20 to 2022-02-21 · Northern Sweet Grass, Montana

Event narrative

Heavy snow, black ice, low visibilities and numerous accidents were reported across the area.

Wider weather episode

A strong arctic airmass settled in over the Billings Forecast Area. At the same time, abundant Pacific moisture overrode this airmass. This resulted in a prolonged period of heavy snow across all of south central and southeast Montana. Snowfall amounts of 6 to 12 inches were common.

Source: NOAA Storm Events Database, event_id 1003051. Narrative written by the NWS forecast office that issued the report.