Harrison County, Missouri: hazard risk
FEMA rates Harrison County's overall risk Very Low (score 29.3 of 100, higher than 29% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by drought. Its storm record holds 431 events since 1950.
FEMA's rating for each hazard
These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.
FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Drought | Relatively High | 90.6 | $1.3M |
| Landslide | Relatively Low | 74.5 | $7K |
| Heat Wave | Relatively Low | 66.6 | $592K |
| Tornado | Relatively Low | 58.1 | $1.2M |
| Hail | Relatively Low | 55.9 | $249K |
| Cold Wave | Relatively Low | 52.9 | $803K |
| Strong Wind | Relatively Low | 44.5 | $354K |
| Winter Weather | Relatively Low | 32.9 | $26K |
| Wildfire | Very Low | 60.1 | $63K |
| Riverine Flooding | Very Low | 28.1 | $2.5M |
| Earthquake | Very Low | 25.7 | $36K |
| Lightning | Very Low | 20.8 | $54K |
| Ice Storm | Very Low | 18.9 | $11K |
| Hurricane | Very Low | 11.2 | $2K |
Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.
What the record holds
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| Hail | 166 | 0 | $198K | 92nd of 114 | 1436th of 3,080 |
| Severe thunderstorm wind | 114 | 0 | $202K | 100th of 114 | 2201st of 3,080 |
| Winter storms | 53 | 1 | $495K | 85th of 114 | 1907th of 3,077 |
| Tornadoes | 24 | 1 | $21M | 78th of 114 | 1677th of 3,080 |
| Drought | 20 | 0 | – | 75th of 114 | 1405th of 3,063 |
| Floods | 20 | 0 | – | 112th of 114 | 2326th of 3,080 |
| Heat | 15 | 1 | – | 77th of 114 | 1020th of 3,076 |
| Extreme cold | 12 | 0 | – | 49th of 114 | 1305th of 3,076 |
| High wind and dust storms | 4 | 0 | – | 75th of 114 | 2634th of 3,080 |
| Heavy rain | 3 | 0 | – | 67th of 114 | 1702nd of 3,080 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Harrison County record: every hazard by year and month, the deadliest events and FEMA's declarations.