2004 Hallam tornado
| The tornado near maximum width approaching Hallam | |
| Meteorological history | |
|---|---|
| Formed | May 22, 2004 7:30 PM CDT | 
| Dissipated | May 22, 2004 9:10 PM CDT | 
| Duration | 1 hour and 40 minutes | 
| F4 tornado | |
| on the Fujita scale | |
| Highest winds | 207–260 mph (333–418 km/h) | 
| Overall effects | |
| Fatalities | 1 | 
| Injuries | 38 | 
| Damage | $160 million (2004 USD) | 
| Areas affected | Nebraska (Jefferson, Saline, Gage, Lancaster, and Otoe counties) | 
| Part of the Tornado outbreak sequence of May 2004 and tornado outbreaks of 2004 | |
The 2004 Hallam tornado was a long-tracked and extremely large F4 tornado that tore through multiple counties in southeast Nebraska during the evening hours of May 22, 2004. The tornado, part of a tornado outbreak sequence, damaged many towns along its path, but its most destructive effect occurred at the town of Hallam. The tornado is recognized by NOAA as the second-largest tornado on record, peaking at 2.5 miles (4.0 km) wide at Hallam, behind only the 2013 El Reno tornado, the tornado holds the record as the largest tornado in Nebraska's history.