FEMA relative scores

Tornado Risk Rankings

The highest relative tornado scores among FEMA county-equivalent areas represented in the city directory.

One FEMA area can contain several covered cities. Each area appears once below, with links to its city pages. The score is a relative comparison measure, not the annual chance of a tornado.

  1. #1
    Very High

    100.0

    relative score

  2. #2

    Cook County, IL

    ChicagoCicero
    Very High

    100.0

    relative score

  3. #3

    Collin County, TX

    AllenFriscoMcKinneyPlano
    Very High

    99.9

    relative score

  4. #4

    Tarrant County, TX

    ArlingtonFort Worth
    Very High

    99.9

    relative score

  5. #5

    Bexar County, TX

    San Antonio
    Very High

    99.9

    relative score

  6. #6
    Very High

    99.8

    relative score

  7. #7

    Denton County, TX

    DentonLewisville
    Very High

    99.8

    relative score

  8. #8

    Travis County, TX

    Austin
    Very High

    99.8

    relative score

  9. #9

    Hillsborough County, FL

    BrandonRiverviewTampa
    Very High

    99.7

    relative score

  10. #10
    Very High

    99.7

    relative score

  11. #11

    Jefferson County, KY

    Louisville
    Very High

    99.7

    relative score

  12. #12
    Very High

    99.7

    relative score

  13. #13

    Shelby County, TN

    Memphis
    Very High

    99.6

    relative score

  14. #14
    Very High

    99.6

    relative score

  15. #15

    Montgomery County, TX

    ConroeThe Woodlands
    Very High

    99.6

    relative score

  16. #16

    Douglas County, NE

    Omaha
    Very High

    99.5

    relative score

  17. #17

    DuPage County, IL

    Naperville
    Very High

    99.5

    relative score

  18. #18

    Jefferson County, AL

    BirminghamHoover
    Very High

    99.5

    relative score

  19. #19

    Oklahoma County, OK

    EdmondOklahoma City
    Very High

    99.4

    relative score

  20. #20

    Fort Bend County, TX

    Sugar Land
    Very High

    99.4

    relative score

  21. #21

    Macomb County, MI

    Sterling HeightsWarren
    Very High

    99.4

    relative score

  22. #22

    Sedgwick County, KS

    Wichita
    Very High

    99.3

    relative score

  23. #23

    East Baton Rouge Parish, LA

    Baton Rouge
    Very High

    99.3

    relative score

  24. #24

    Orange County, FL

    Orlando
    Very High

    99.3

    relative score

  25. #25

    Hamilton County, OH

    Cincinnati
    Very High

    99.2

    relative score

Other hazard rankings

AvalancheCoastal FloodingCold WaveDroughtEarthquakeHailHeat WaveHurricaneIce StormLandslideLightningRiverine FloodingStrong WindTsunamiVolcanic ActivityWildfireWinter Weather

Source: FEMA National Risk Index v1.19.0, released March 2023. Hazard figures cover FEMA county-equivalent areas.

Read the methodology →