Tornado fatality statistics

The big picture

• US average: 71 tornado deaths per year (1990-2020).
• Range: 15 to 553 depending on year.
• Worst year: 2011 (553 dead, mostly Super Outbreak).
• Best year: 1988 (32 dead).
• Fatality rate per tornado has decreased over decades — thanks to warnings.
• Total tornadoes has increased due to better detection.

Fatalities by structure

Fatalities by time of day

• Nighttime (7 PM - 7 AM): ~40% of tornadoes, but ~65% of fatalities.
• Peak fatal hour: 9-11 PM.
• Dawn (5-7 AM): 15% of fatalities.
• Daylight tornadoes: relatively fewer fatalities per warned event.
• People asleep or without visual cues die at 2.5x the rate.

Fatalities by region

Fatalities by age

• Under 5: elevated risk (relies on adults for protection).
• 65+: highest death rate (mobility, isolation, older housing).
• 75+: 3x death rate of adults 25-64.
• Working-age adults: lower death rate but higher raw count.
• Children in vehicles or mobile homes: extreme risk.

Fatalities by tornado intensity

EF4-EF5 tornadoes are rare (<1% of all tornadoes) but produce 60% of fatalities. This is why targeting these events matters.

The deadliest tornadoes in US history

1. 1925 Tri-State — 695 dead. Deadliest ever.
2. 1840 Natchez, MS — 317 dead.
3. 1896 St. Louis — 255 dead.
4. 1936 Tupelo, MS — 216 dead.
5. 1936 Gainesville, GA — 203 dead.
6. 1947 Woodward, OK — 181 dead.
7. 1908 Amite, LA — 143 dead.
8. 1899 New Richmond, WI — 117 dead.
9. 2011 Joplin, MO — 158 dead. Deadliest US tornado since 1947.
10. 1953 Flint, MI — 116 dead.
11. 1953 Waco, TX — 114 dead.
12. 1902 Goliad, TX — 114 dead.

What has changed since 1875

• 1875-1900: No warnings existed. Fatalities were catastrophic.
• 1900-1950: Weather Bureau prohibited tornado warnings — feared panic. Deaths accumulated.
• 1950s: Public warnings began. Deaths dropped modestly.
• 1970s: Radar era. Warning lead time grew from 0 to 5 min.
• 1980s-1990s: Doppler radar. Lead time 11-13 min. Deaths dropped further.
• 2000s: Cell alerts began. WEA in 2012.
• 2010s-2020s: Impact-based warnings. Some recent years buck the trend (2011, 2021).

Preventable deaths

Most tornado fatalities in the modern era are preventable. Common patterns:

• Person in mobile home who didn't have alternate shelter.
• Person in vehicle trying to outrun tornado.
• Person outside recording video.
• Person didn't receive warning (WEA off, sleeping, hearing impaired).
• Person believed the warning was false (warning fatigue).
• Person believed the tornado wouldn't hit their specific location.
• Person had no shelter plan.
• Person's "shelter" was actually a poor choice (attic, bathroom on 2nd floor).

The equity dimension

• Mobile home fatality rate 15-20x site-built homes.
• Mobile home density is higher in low-income and rural areas.
• Non-native English speakers face warning language barriers.
• Overnight-shift workers face different warning exposure.
• Historically, warnings were only in English.
• NWS has expanded Spanish-language warnings.
• Community shelter access disparities.
• Insurance coverage disparities post-storm.

What continues to save lives

• NOAA Weather Radio with SAME.
• Wireless Emergency Alerts (WEA).
• Storm shelters and safe rooms.
• Skywarn spotter network.
• Broadcast meteorology continuity.
• Impact-based warnings.
• Community shelter programs.
• Family communication plans.

Learn more

• Warning lead time history
• Tornado Alley vs Dixie Alley
• Mobile home tornado safety
• Deadliest storms by decade