Hallam, Nebraska Tornado Outbreak

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Path of the Hallam tornado.

The Hallam, Nebraska Tornado Outbreak was an outbreak of over 20 tornadoes in Nebraska spawned by super cell thunderstorms on the evening of May 22, 2004. Numerous tornadoes were also reported in Iowa.

1 Timeline
2 Damage
3 Tornado Table
4 See also
5 References
6 External links

[edit] Timeline

The most damaging tornado in the outbreak first touched down at 7:30 P.M. CDT in northwestern Jefferson County. The tornado then moved to the northeast, through southern Saline County and northwestern Gage County. By the time it entered Lancaster County, it measured an F4 on the Fujita scale and the damage was 2.5 miles wide, resulting in some claims that it was the widest tornado ever recorded.^[1] (However, the documented core flow (1600 m) and damaging wind diameter (7000 m) of the F4 Mulhall, OK tornado (3 May 1999, measured by a DOW mobile radar, make the Mulhall event the largest documented tornado wind field. The Mulhall tornado did not produce as wide a documented damage swath due to its passage over largely rural terrain (Wurman et al 2007).) The tornado passed into Otoe County, disappearing just west of Palmyra at 9:10. The tornado had a path length of about 54 miles, and was on the ground for 100 minutes.

[edit] Damage

The village of Hallam (25 miles south of Lincoln), struck at 8:33 P.M., was hardest hit. Most of the buildings in Hallam were destroyed; there were 37 people injured and one fatality in the village. The Norris Public Schools high school building was severely damaged; its auditorium was destroyed. Straight-line winds caused damage in Princeton. Several farms and rural homes also suffered extensive damage. This storm not only derailed a freight train, but moved it 20 feet to the east.