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Florida tornado risk

67 counties scored 3 rated Very High

Hillsborough County has the highest tornado risk in Florida, scoring 99.7 out of 100 — rated "Very High" by FEMA's National Risk Index. Recorded tornado events across Florida have increased 32% over the past five years compared to the prior five-year period.

# County NRI score Rating NOAA events
2016–2026
1 Hillsborough County 99.7 Very High 8
2 Orange County 99.1 Very High 8
3 Pinellas County 99 Very High 19
4 Miami-Dade County 98.7 Relatively High 16
5 Pasco County 98.4 Relatively High 12
6 Volusia County 98.3 Relatively High 9
7 Manatee County 98 Relatively High 11
8 Seminole County 97.6 Relatively High 4
9 Lake County 97.4 Relatively High 7
10 Marion County 97.3 Relatively High 6
11 Leon County 97.1 Relatively High 15
12 Broward County 96.3 Relatively High 27
13 Brevard County 95.3 Relatively High 20
14 Okaloosa County 94.2 Relatively High 10
15 Bay County 94.1 Relatively High 22
16 Polk County 93.9 Relatively High 10
17 Palm Beach County 93.8 Relatively High 31
18 Osceola County 93.6 Relatively High 7
19 Sarasota County 92.5 Relatively High 8
20 Hernando County 91.8 Relatively High 3
21 Sumter County 91.6 Relatively High 2
22 Duval County 91.5 Relatively High 11
23 Alachua County 90.3 Relatively High 3
24 Santa Rosa County 89.6 Relatively Moderate 12
25 Citrus County 89 Relatively Moderate 3
26 Lee County 87.5 Relatively Moderate 17
27 Walton County 85.6 Relatively Moderate 24
28 St. Johns County 85.4 Relatively Moderate 14
29 Gadsden County 83.8 Relatively Moderate 5
30 Clay County 83.2 Relatively Moderate 3
31 St. Lucie County 82.8 Relatively Moderate 12
32 Highlands County 82.5 Relatively Moderate 6
33 Flagler County 80.9 Relatively Moderate 6
34 Putnam County 78.5 Relatively Moderate 3
35 Collier County 76.4 Relatively Moderate 9
36 Martin County 74.8 Relatively Moderate 12
37 Indian River County 72.5 Relatively Moderate 11
38 Escambia County 71.2 Relatively Moderate 11
39 Washington County 68.9 Relatively Moderate 8
40 Columbia County 66.8 Relatively Moderate 5
41 Charlotte County 62.6 Relatively Low 13
42 DeSoto County 59.4 Relatively Low 2
43 Jackson County 59.4 Relatively Low 9
44 Levy County 58.7 Relatively Low 0
45 Jefferson County 57.3 Relatively Low 6
46 Calhoun County 56.6 Relatively Low 5
47 Nassau County 53.6 Relatively Low 5
48 Holmes County 53 Relatively Low 6
49 Suwannee County 51.7 Relatively Low 3
50 Wakulla County 50.9 Relatively Low 10
51 Okeechobee County 44.2 Relatively Low 5
52 Hardee County 42.5 Relatively Low 4
53 Bradford County 41.3 Relatively Low 4
54 Madison County 38.2 Relatively Low 7
55 Gulf County 38.1 Relatively Low 0
56 Hendry County 37.6 Relatively Low 6
57 Taylor County 37.2 Relatively Low 9
58 Hamilton County 33.4 Relatively Low 0
59 Franklin County 32.5 Relatively Low 6
60 Baker County 31.5 Relatively Low 1
61 Gilchrist County 31 Relatively Low 2
62 Liberty County 28.3 Relatively Low 5
63 Union County 27.7 Relatively Low 2
64 Dixie County 26.2 Relatively Low 0
65 Monroe County 25.6 Very Low 13
66 Glades County 20.9 Very Low 6
67 Lafayette County 19.5 Very Low 0

Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.

Tornado risk nationally:

Top 50 US counties

Other hazard risks in Florida:

WildfireInland FloodingCoastal FloodingEarthquakeHeat WaveHurricaneHailStrong WindWinter WeatherIce StormCold WaveLightningDroughtLandslideAvalancheTsunamiVolcanic Activity

Frequently asked questions

What is the highest tornado risk county in Florida?

Hillsborough County, FL has the highest tornado risk in Florida, with a FEMA National Risk Index score of 99.7 out of 100 (rated "Very High").

How many counties in Florida are rated Very High for tornado risk?

3 of 67 scored Florida counties are rated "Very High" for tornado risk by FEMA's National Risk Index.

What causes tornado risk in Florida?

Tornado risk concentrates in the central and southern plains ("Tornado Alley") and the Southeast ("Dixie Alley"), where atmospheric conditions favor supercell thunderstorm development. The highest scores often belong to counties with significant mobile home and manufactured housing stock, which carries disproportionate tornado mortality risk.