Mapmaster

MapMaster 3

Atlas (Beta)
MapMaster 3

Average Number of Tornado Incidences per Year (U.S.)

North AmericaPhysical Environment

Tornado prevalence in the United States per 1,000 square miles per year

Tornado Archive

A map shows average tornado incidences per year in the U.S. The highest incidences (dark brown) are in Oklahoma, parts of Texas, Kansas, and Missouri. The lowest incidences (light yellow) are in Alaska, Washington, Oregon, and California.

Add Columns

Average Number of Tornado Incidences per Year (U.S.)

Approximate Form and Extent of Outcrop of Carbonate Rocks

Major Waterfalls and Cataracts

Less than 1

1–5

6–10

11–15

More than 15

Approximate Form and Extent of Outcrop of Carbonate Rocks

Alexandra Falls

Athabasca Falls

Baileys Chute

Celilo Falls

Cohoes Falls

Cumberland Falls

Great Falls

Kettle Falls

Kootenai Falls

Little Falls

Louise Falls

Marcus Falls

Niagara Falls

Osprey Falls

Rearguard Falls

Sandstone Falls

Sherars Falls

Vermilion Falls

Virginia Falls

Waterloo Falls

Willamette Falls

Alaska
99.8%
Arizona
92.2%7.76%
Utah
100%
District of Columbia
100%
Idaho
100%
New Hampshire
1.24%98.7%
Rhode Island
99.3%
Vermont
77.1%22.6%
Wyoming
87.7%12.3%
Maine
40.0%59.8%
North Dakota
29.5%70.5%
Delaware
99.2%
Mississippi
10.9%74.0%15.1%
Nebraska
88.6%11.4%
Missouri
23.4%62.5%14.1%
Louisiana
30.4%69.5%
Hawaii
92.1%
North Carolina
99.9%
Alabama
69.5%16.4%14.0%
New Mexico
90.2%9.71%
Wisconsin
13.1%53.1%33.7%
New Jersey
19.5%80.3%
South Carolina
99.9%
Michigan
34.8%64.8%
Connecticut
99.9%
Pennsylvania
6.15%93.9%
Colorado
69.4%30.6%
Nevada
100%
Massachusetts
99.5%
Maryland
99.3%
California
99.9%
Arkansas
87.2%12.8%
South Dakota
22.1%76.0%1.85%
Ohio
3.97%96.0%
Indiana
62.9%37.1%
Minnesota
23.4%72.5%4.03%
Iowa
50.0%50.0%
Florida
64.2%35.5%8.54%
Texas
16.8%43.9%36.9%2.38%2.21%
Kansas
68.1%31.5%8.84%
Georgia
61.5%38.5%5.65%
Oklahoma
3.41%35.1%46.0%15.5%7.62%
Tennessee
41.3%58.7%0.744%
Illinois
70.3%29.6%4.93%
Northwest Territories
111
Washington
99.9%1
Montana
100%1
Kentucky
4.42%60.5%35.1%1.28%1
Virginia
10.3%89.6%15.1%1
West Virginia
48.2%51.8%17.2%1
Oregon
100%11111
British Columbia
2.52%1111
Alberta
11
New York
61.6%38.3%1
Ontario
1
0.16.0