Average Number of Tornado Incidences per Year (U.S.)
North AmericaPhysical EnvironmentTornado prevalence in the United States per 1,000 square miles per year
Tornado ArchiveA 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.
Less than 1 | 1–5 | 6–10 | 11–15 | More than 15 | Bad Creek Hydroelectric Power Plant SC USA | Bath County Pumped Storage Hydroelecric Power Plant VA USA | Beauharnois Hydroelectric Power Plant Canada | Bersimis-1 Hydroelectric Power Plant Canada | Blenheim Gilboa Pumped Storage Hydroelectric Power Plant NY USA | Bonneville Hydro Power Plant OR USA | Boundary Dam Hydro Power Plant WA USA | Castaic Pumped Storage Hydroelectric Power Plant CA USA | Chief Joseph Hydro Power Plant WA USA | Churchill Falls Hydroelectric Generating Station Canada | G M Shrum (W.A.C. Bennett) Hydroelectric Power Plant Canada | Glen Canyon Dam Hydro Power Plant AZ USA | Grand Coulee Hydro Power Plant WA USA | Helms Pumped Storage Hydroelectric Power Plant CA USA | Hoover Dam Hydro Power Plant AZ/NV USA | John Day Hydro Power Plant OR USA | Kettle Rapids Hydroelectric generating Station Canada | La Grande-1 Hydroelectric Generating Station Canada | La Grande-2-A Hydroelectric Generating Station Canada | La grande-3 Hydroelectric Generating Station Canada | La grande-4 Hydroelectric Generating Station Canada | Limestone Hydroelectric Generating Station Canada | Long Spruce Hydroelectric Geneerating Station Canada | Ludington Hydro Power Plant MI USA | Manic-2 (Jean-Lesage) Hydroelectric Generating Station Canada | Manic-3 (Rene-Levesque) Hydroelectric Generating Station Canada | Manic-5 Hydroelectric Generating Station Canada | Manic-5-PA Hydroelectric generating Station Canada | Mica Creek Hydroelectric Power Plant Canada | Muddy Run Pumped Storage Hydro Power Plant PA USA | Northfield Mountain Pumped Storage Hydro Power Plant MA USA | Outardes-3 Hydroelectric Power Plant Canada | R.H. Saunders Hydroelectric Power Plant Canada | Raccoon Mountain Pumped Storage Hydro Power Plant TN USA | Revelstoke Hydroelectric Power Plant Canada | Robert Moses Niagara Hydro Power Plant NY USA | Robert-Bourassa Hydroelectric Generating Station Canada | Rocky Mountain Pumped Storage Hydro Hydro Power Plant GA USA | Rocky Reach Hydro Power Plant WA USA | Sir Adam Beck II Hydroelectric Generating Station Canada | The Dalles Hydro Power Plant OR USA | Toktogul Hydroelectric Power Plant Kyrgyzstan | Wanapum Hydro Power Plant WA USA | Class | Rank | Billion Cubic Feet | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 65.3% | 51.1% | 35.9% | 21.6% | 5.21% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||