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EF2 tornado in Morrill County, Nebraska

Tornado June 12, 2017 · Morrill County, Nebraska

EF2
Rating
31.6 mi
Whole path
300 yd
Path width
$3.5M
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 300 yards (0.17 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

A long-track discontinuous tornado path was surveyed by the NWS damage team, initially touching down northwest of the Highway 26 and L62A intersection, 4 miles north-northwest of Bayard, NE. The tornado continued east along and north of L62A. Significant damage consistent of EF-2 tornadic damage was surveyed at a farmhouse approximately 6 miles northeast of Bayard. The house was severely damaged with the roof taken off and numerous exterior walls destroyed (DI 4, DOD 8). A detached garage was swept clean (DI 1, DOD 8) with several trucks slid from their original location. A flat bed and horse trailer were lofted 100 yards from their original position. Trees to the west of the residence were denuded. This storm produced additional damage some of which was due to straight-line winds along L62A. This damage included damage to a steel farm outbuilding, rolled mobile home, rolled semi tractor trailer, rolled center pivots, and continued tree denuding. The storm lifted northeast near Highway 385 with additional damage surveyed at Angora, including downed power poles and a train derailment. The discontinuous tornado continued northeast exiting Morrill County near Highway 385 by 1904 MST. This storm continued and produced additional damage in Box Butte County.

The wider storm

One of the most significant severe weather episodes to affect the western Nebraska Panhandle occurred during in the early evening of Monday 12 June 2017. Several tornadoes, hail to baseball size, and damaging winds were observed. Supercell thunderstorms developed during the afternoon along Interstate 25 between Fort Collins, CO and Wheatland. Lifting northeast, these thunderstorms spread into the western Nebraska Panhandle during the early evening.

Began near Bayard (41.8219, -103.3408).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 721654. Narratives are written by the National Weather Service forecast office that issued the report.

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