Tornado Activity in the United States

Map of US Wind Zones which is described in the table below.

Tornado Activity in the United States
Summary of Recorded F3, F4 & F5 Tornadoes per 3,700 Square Miles (1950 - 1998)
Based on NOAA, Storm Prediction Center Statistics
Number of Recorded Major Tornadoes
Areas Affected
< 1 All or most of Washington, Oregon, California, Idaho, Utah, Arizona, Montana, Wyoming, Colorado, New Mexico, Maine, New Hampshire, Vermont and Rhode Island. Parts of North Dakota, Minnesota, Wisconsin, Michigan, Texas, Florida, Delaware, Alaska, Hawaii, American Somoa, Puerto Rico and Virgin Islands. Isolated areas in Massachusetts, New York, Connecticut, Pennsylvania, Maryland, Ohio, Kentucky and Louisiana.
1 - 5 Most of South Dakota, Virginia, West Virginia, and North Carolina. Parts of North Dakota, Nebraska, Texas, Minnesota, Wisconsin, Michigan, New York, Pennsylvania, Maryland, Washington DC, and South Carolina. Isolated areas in Washington, Oregon, Montana, Wyoming, Kansas, New Mexico, Ohio, Kentucky, Tennessee, Maine, Georgia and Florida.
6 - 15 Parts of South Dakota, Nebraska, Kansas, Texas, Minnesota, Iowa, Missouri, Wisconsin, Illinois, Mississippi, Ohio, Alabama, and Pennsylvania. Isolated areas of Oklahoma, Arkansas, Louisiana, New Hampshire, Massachusetts, New York, West Virginia, Kentucky, North Carolina, South Carolina, Georgia, and Florida.
16 - 25

Half of Indiana, parts of Kansas, Texas, Iowa, Kansas, Missouri, Arkansas, Louisiana, Indiana, Kentucky, Tennessee, Mississippi, Alabama and Georgia. Isolated areas in the following states: North Dakota, Minnesota, Wisconsin, Michigan, Louisiana, Michigan, Ohio, Virginia, North Carolina, and South Carolina.
> 25 Most of Oklahoma, half of Indiana, and isolated areas in the following states: Nebraska, Kansas, Texas, Missouri, Arkansas, Louisiana, Ohio, Kentucky, Tennessee, Mississippi, Alabama and Georgia.

Last Modified: Wednesday, 01-Nov-2006 15:37:26 EST