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EF2 tornado in Cass County, Nebraska

Tornado December 15, 2021 · Cass County, Nebraska

EF2
Rating
6.2 mi
Whole path
200 yd
Path width

NOAA records this tornado county by county. Its path ran through Cass County → Cass County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF2 means. On the Enhanced Fujita scale, EF2 is considerable damage: roofs torn off well-built houses, mobile homes destroyed, large trees snapped or uprooted, consistent with estimated gusts of 111–135 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

Three witnesses observed tornado form south side of lake. Roof taken off residence. Several hardwood trees snapped and pine trees uprooted or snapped. Tornado continued northeast where it did substantial damage to a horse farm. Extension of house destroyed. Horse trailer rolled. Several large trees snapped an uprooted. Unable to survey northern end of track due to terrain and no road.

The wider storm

A low pressure system brought strong (both thunderstorm, and non-thunderstorm) winds, tornadoes, dust, snow, and record temperatures into eastern Nebraska and western Iowa. The event was determined to be a derecho meeting the criteria of wind damage extending more than 250 miles, including wind gusts of at least 58 mph and numerous gusts of at least 75 mph.

Began near Murray (40.9200, -95.8800).

Other tornadoes from the same storm system

16 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 998213. Narratives are written by the National Weather Service forecast office that issued the report.

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