Areas of Strong Tornado Occurrence
WorldPhysical EnvironmentThe areas that show the greatest concentration of dots have the highest frequency of tornadoes
Tornado Archive A world map shows areas of strong tornado occurrences, marked in red dots. Tornadoes cluster mainly in the eastern region of North America. Other regions include Argentina, parts of Europe, Japan, Bangladesh, Australia, New Zealand, and southern Africa.
Areas of Strong Tornado Occurrence | Areas of Strong Tornado Occurrence | Areas of Strong Tornado Occurrence | Areas of Strong Tornado Occurrence | Major Karst Regions | 240–259 | 220–239 | 200–219 | 180–199 | 160–179 | 140–159 | 120–139 | 100–119 | 80–99 | Less than 80 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 28.4% | 69.2% | 2.23% | ||||||||||||
Arizona | 5 | 1 | 6.12% | 44.2% | 33.7% | 22.1% | |||||||||
Utah | 2 | 16.5% | 70.0% | 8.89% | 2.63% | ||||||||||
Yukon | 2.27% | 100% | |||||||||||||
Northwest Territories | 1.44% | 2.63% | 82.4% | 14.9% | |||||||||||
District of Columbia | 100% | ||||||||||||||
Florida | 31 | 6 | 42.1% | 32.7% | 67.3% | ||||||||||
Idaho | 1 | 0.527% | 78.1% | 21.9% | |||||||||||
New Hampshire | 2 | 100% | |||||||||||||
Rhode Island | 100% | ||||||||||||||
Vermont | 1 | 100% | |||||||||||||
Washington | 1 | 1.22% | 98.8% | ||||||||||||
Wyoming | 15 | 3 | 4.22% | 12.4% | 87.6% | ||||||||||
Nunavut | 3.79% | 1.36% | 33.1% | 65.5% | |||||||||||
Montana | 8 | 4 | 14.7% | 85.3% | |||||||||||
Maine | 1.04% | 99.8% | 0.153% | ||||||||||||
North Dakota | 38 | 6 | 5 | 18.3% | 100% | ||||||||||
Kentucky | 87 | 26 | 2 | 7.06% | 46.4% | 53.6% | |||||||||
Nova Scotia | 45.5% | 52.4% | 47.6% | ||||||||||||
Virginia | 28 | 8 | 17.5% | 2.49% | 97.5% | ||||||||||
Delaware | 3 | 100% | |||||||||||||
Prince Edward Island | 100% | ||||||||||||||
Saskatchewan | 7 | 42.7% | 57.2% | ||||||||||||
Mississippi | 162 | 45 | 7 | 2 | 5.48% | 82.1% | 17.9% | ||||||||
West Virginia | 4 | 27.1% | 99.2% | 0.827% | |||||||||||
Nebraska | 67 | 13 | 7 | 5.07% | 9.53% | 90.5% | |||||||||
Texas | 193 | 46 | 7 | 0.625% | 5.26% | 58.9% | 35.9% | ||||||||
Missouri | 95 | 36 | 7 | 1 | 0.407% | 66.4% | 33.6% | ||||||||
Louisiana | 93 | 15 | 2 | 26.8% | 73.2% | ||||||||||
Hawaii | 2.67% | 97.3% | |||||||||||||
North Carolina | 54 | 12 | 13.2% | 73.0% | 27.0% | ||||||||||
Oregon | 2 | 96.3% | 3.75% | ||||||||||||
New Brunswick | 7.07% | 47.2% | 52.8% | ||||||||||||
Alabama | 149 | 34 | 13 | 2 | 6.35% | 66.2% | 33.8% | ||||||||
New Mexico | 7 | 29.5% | 15.5% | 33.9% | 49.1% | ||||||||||
Kansas | 82 | 56 | 10 | 1 | 2.31% | 5.90% | 91.6% | 2.46% | |||||||
Wisconsin | 32 | 11 | 31.1% | 100% | |||||||||||
British Columbia | 1 | 21.7% | 31.5% | 46.8% | |||||||||||
Newfoundland and Labrador | 9.36% | 29.5% | 69.1% | 1.36% | |||||||||||
New Jersey | 2 | 1 | 51.6% | 48.4% | |||||||||||
South Carolina | 46 | 15 | 1 | 100% | |||||||||||
Michigan | 20 | 3 | 8.03% | 100% | |||||||||||
Alberta | 9 | 4.20% | 29.7% | 53.1% | 17.2% | ||||||||||
Connecticut | 100% | ||||||||||||||
Pennsylvania | 31 | 3 | 14.8% | 19.4% | 80.6% | ||||||||||
Colorado | 25 | 3 | 48.1% | 51.6% | 0.332% | ||||||||||
Nevada | 4.77% | 1.58% | 63.4% | 31.2% | 3.86% | ||||||||||
Massachusetts | 2 | 1 | 0.220% | 99.8% | |||||||||||
Georgia | 90 | 31 | 4 | 38.3% | 48.3% | 51.7% | |||||||||
New York | 17 | 1 | 1.63% | 100% | |||||||||||
Maryland | 8 | 1 | 0.239% | 100% | |||||||||||
Québec | 30 | 1 | 2.89% | 10.4% | 38.5% | 41.0% | 10.1% | ||||||||
Manitoba | 5 | 4 | 1 | 1 | 13.2% | 26.0% | 66.7% | 7.35% | |||||||
Oklahoma | 104 | 29 | 8 | 2 | 4.68% | 82.2% | 17.8% | ||||||||
Tennessee | 82 | 27 | 8 | 4.04% | 100% | ||||||||||
Ontario | 46 | 1 | 5.81% | 30.4% | 56.0% | 13.7% | |||||||||
California | 3 | 2.69% | 22.7% | 49.4% | 19.9% | 5.25% | |||||||||
Arkansas | 105 | 23 | 4 | 17.2% | 50.1% | 49.9% | |||||||||
South Dakota | 47 | 7 | 4 | 50.1% | 49.9% | ||||||||||
Ohio | 42 | 7 | 3 | 51.6% | 48.4% | ||||||||||
Indiana | 58 | 18 | 1 | 33.8% | 0.561% | 79.2% | 20.2% | ||||||||
Minnesota | 60 | 11 | 4 | 16.9% | 99.9% | ||||||||||
Iowa | 86 | 17 | 4 | 1 | 0.441% | 77.7% | 22.3% | ||||||||
Illinois | 108 | 21 | 6 | 16.2% | 11.8% | 73.8% | 14.4% | ||||||||
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