Winter Storm — Yellowstone National Park, Wyoming

2021-02-11 to 2021-02-14 · Yellowstone National Park, Wyoming

Event narrative

Heavy snow fell in portions of Yellowstone Park. Over an foot of snow fell in many locations.

Wider weather episode

An arctic boundary slowly sagged southward across much of northern and central Wyoming and brought bitterly cold temperatures. Temperatures in northern Wyoming fell as low as minus 30. In addition, a couple of moisture laden troughs moved across the area and brought another round of heavy snow to western Wyoming. Some parts of Yellowstone Park had as much as 30 inches of snow. Other locations in Teton, Lincoln and Sublette County also received over a foot of new snow.

Source: NOAA Storm Events Database, event_id 939628. Narrative written by the NWS forecast office that issued the report.