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EF1 tornado in Boone County, Nebraska

Tornado May 12, 2023 · Boone County, Nebraska

EF1
Rating
1.2 mi
Path length
150 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 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 short-lived tornado developed south of Highway 32 and traveled toward the northwest for approximately 1.5 miles. The most intense damage occurred when the tornado destroyed a one-year-old machine shed and deposited the debris a few hundred yards north across the highway. There were also several power poles snapped in this area and a center pivot was flipped farther north, closer to 130th street.

The wider storm

A strong low-pressure system which had been slowly moving east off the Rocky Mountains finally progressed into central Nebraska. This left eastern Nebraska in the warm sector as a warm front moved north into the area. The SPC issued an Enhanced Risk for severe weather with a 30% hatched for severe hail. There ended up being 19 confirmed tornadoes (3 EF2, 8 EF1, 4 EF0, 4 EFU). There were numerous hail reports the largest of which was 4.5 inches in Pawnee County. Another 4-inch report was received in Richardson County. Flash flooding was also observed in a few locations.

Began near Closter (41.8527, -97.8754).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 1097184. Narratives are written by the National Weather Service forecast office that issued the report.

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