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EF1 tornado in Platte County, Nebraska

Tornado December 15, 2021 · Platte County, Nebraska

EF1
Rating
0.8 mi
Path length
30 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 30 yards (0.02 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 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

A tornado developed over an open field south of town and north of the creek where it tipped over two sections of an irrigation pivot. The tornado proceeded north northeast into Platte Center, causing damage to a garage and snapping several trees. The maximum damage occurred between 2nd and 4th streets where a large metal building with wood construction had the wind enter the doors, uplift the roof, and collapse the walls as the entire building shifted and collapsed to the northeast. Very large trees were blown down and one home lost much of its roof. The damage became less notable over the next block and dissipated near the elementary school.

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 Platte Center (41.5300, -97.4900).

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 998192. Narratives are written by the National Weather Service forecast office that issued the report.

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