Disaster-history hazard lens
Tornadoes, funnel clouds, and waterspouts. Compare official county histories below while keeping FEMA administrative declarations separate from NOAA observed-event reports.
Data updated Aug 21, 2026
These counts do not measure current danger, probability, severity, loss, or personal exposure. A higher rank means only that a county has more records within the same official source and exact coverage window. FEMA and NOAA counts are never added together.
Administrative records
Federal administrative declarations that include a county designation and map to this hazard category. A declaration is a government action, not a physical-event census.
22 counties have a positive tornado count in this source.
Coverage: Jan 1, 1964 – Aug 21, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
Observed-event reports
Distinct NOAA Storm Events records explicitly coded to a county and mapped to this hazard category. Forecast-zone and marine-zone records are excluded from county totals.
51 counties have a positive tornado count in this source.
Coverage: Jan 1, 1996 – Sep 25, 2025
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Providence County, Rhode Island | 10 |
Coverage: Jan 1, 1996 – Apr 12, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | King County, Washington | 12 |
Coverage: Jan 1, 1996 – May 3, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Clark County, Nevada | 7 |
Coverage: Jan 1, 1996 – May 10, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Cumberland County, Maine | 11 |
Coverage: Jan 1, 1996 – May 15, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Cass County, North Dakota | 90 |
| 2 | Honolulu County, Hawaii | 57 |
| 3 | Hillsborough County, New Hampshire | 2 |
Coverage: Jan 1, 1996 – May 18, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Cook County, Illinois | 51 |
Coverage: Jan 1, 1996 – May 19, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Kent County, Michigan | 22 |
| 2 | Wayne County, Michigan | 14 |
| 3 | Hartford County, Connecticut | 7 |
| 4 | Middlesex County, Massachusetts | 5 |
Coverage: Jan 1, 1996 – May 20, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Montgomery County, Maryland | 24 |
| 2 | Bergen County, New Jersey | 4 |
Coverage: Jan 1, 1996 – May 24, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Philadelphia County, Pennsylvania | 7 |
Coverage: Jan 1, 1996 – May 25, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Maricopa County, Arizona | 75 |
| 2 | Laramie County, Wyoming | 72 |
Coverage: Jan 1, 1996 – May 26, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Fresno County, California | 64 |
| 2 | Los Angeles County, California | 33 |
| 3 | Ventura County, California | 12 |
| 4 | Multnomah County, Oregon | 9 |
Coverage: Jan 1, 1996 – May 27, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Hennepin County, Minnesota | 30 |
| 2 | Jefferson County, Kentucky | 29 |
| 3 | New Castle County, Delaware | 21 |
| 4 | Greenville County, South Carolina | 20 |
| 5 | Fairfax County, Virginia | 19 |
| 6 | Marion County, Indiana | 15 |
| 7 | Milwaukee County, Wisconsin | 6 |
Coverage: Jan 1, 1996 – May 28, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Harrison County, Mississippi | 64 |
| 2 | East Baton Rouge Parish, Louisiana | 26 |
| 3 | Kanawha County, West Virginia | 12 |
| 4 | Bernalillo County, New Mexico | 9 |
Coverage: Jan 1, 1996 – May 29, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Oklahoma County, Oklahoma | 72 |
| 2 | Yellowstone County, Montana | 23 |
| 3 | Ada County, Idaho | 12 |
| 4 | Salt Lake County, Utah | 10 |
| 5 | Kings County, New York | 5 |
Coverage: Jan 1, 1996 – May 30, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | El Paso County, Colorado | 59 |
| 2 | Wake County, North Carolina | 22 |
| 3 | Douglas County, Nebraska | 15 |
Coverage: Jan 1, 1996 – May 31, 2026
Rankings compare only this source and exact coverage window. Equal counts share a rank.
| Rank | County | County-event records |
|---|---|---|
| 1 | Miami-Dade County, Florida | 246 |
| 2 | Harris County, Texas | 158 |
| 3 | Pulaski County, Arkansas | 75 |
| 4 | Jefferson County, Alabama | 71 |
| 5 | Polk County, Iowa | 60 |
| 6 | St. Louis County, Missouri | 38 |
| 7 | Minnehaha County, South Dakota | 30 |
| 8 | Fulton County, Georgia | 25 |
| 9 | Johnson County, Kansas | 19 |
| 9 | Franklin County, Ohio | 19 |
| 11 | Shelby County, Tennessee | 11 |
