1. By: Sarah Burry, Autumn Brown And Zach Gallant
Tri-State Tornado 1925
By: Sarah Burry, Autumn Brown
And
Zach Gallant

3. Classification Category
Atmospheric
Classified as a F5 tornado
The highest rating given on the Fujita scale

4. Natural Hazard Events Date: Wednesday, March 18th, 1925
Location: The tornado crossed from southeastern Missouri, through Southern Illinois, then into southwestern Indiana.

5. Consequences and Aftermath of Hazard
Damage were $16.5 million, $1.4 billion when you account for inflation
Nine schools across three states were destroyed, killing sixty nine students
15,000 homes were damaged
The tornado also affected Kentucky, Tennessee, Alabama, Kansas and other states

6. Potential Natural Hazard
Illinois has 35 tornadoes a year on average
Missouri has 26 tornadoes a year on average
Indiana has 20 tornadoes a year on average
In total: 81 tornadoes between 3 states on average

7. Total
Population: 115,829,000 in US
Deaths: 695
Injures: 2027

8. COMPARING AND ANALYZING
Tri-State Tornado 1925
COMPARING AND ANALYZING

10. Frequency:
The tri-state tornado was part of a larger tornado out break consisting of eight other tornadoes

11. Duration:
3.5 hours

12. Extent:
Larger area

13. Speed of onset:
They saw it coming, but they didn’t realize it was going to be as bad as it was till it hit

14. Spatial Dispersion:
The three states would be likely to be affected by this particular event
The demographic receives many tornadoes a year on average
Most times, tornadoes occur in outbreaks, not just a single tornado

15. Temporal Spacing:
It started with showers and cooling temperatures (nothing strange)
The forecast was tracking a cold, lower-pressure system that bent down from western Canada into Wyoming.
The jet stream wasn’t discovered until World War II by Japanese scientists.

17. Work Cited
Hearst Communications. (July 31, 2007) There’s never been another tornado like it. Retrieved October 20th 2009, from
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