Harrison, AR
Local storm history & FEMA National Risk Index data
Harrison is rated Relatively Low for overall natural hazard risk — lower risk than most US counties — based on FEMA's National Risk Index for Boone County, AR. The county's highest-rated hazards are ice storm, cold wave, and lightning.
Storm events near Harrison
NOAA-recorded tornado, hail, and flood events within 25 miles of Harrison's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Harrison itself, not the whole county.
County-wide hazard risk
Every other hazard FEMA and NOAA track — including drought — is only scored at the county level. These are Boone County's FEMA National Risk Index scores, covering Harrison along with the rest of the county, not a Harrison-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 65.6 | Relatively Low |
| Inland Flooding | 51.2 | Relatively Low |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 71.3 | Relatively Low |
| Heat Wave | 64.4 | Relatively Low |
| Tornado | 78.6 | Relatively Moderate |
| Avalanche | — | Not Applicable |
| Cold Wave | 87.9 | Relatively Moderate |
| Drought | 0 | No Rating |
| Hail | 42.5 | Relatively Low |
| Hurricane | 37.5 | Very Low |
| Ice Storm | 97.3 | Very High |
| Landslide | 69.8 | Relatively Low |
| Lightning | 79.4 | Relatively Moderate |
| Strong Wind | 70.6 | Relatively Moderate |
| Tsunami | — | Not Applicable |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 67.1 | Relatively Moderate |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Boone County risk profile for disaster declarations, social vulnerability, and climate projection data.
More on Boone County:
Frequently asked questions
What natural hazards is Harrison, AR at risk of?
Harrison is rated Relatively Low for overall natural hazard risk by FEMA's National Risk Index — lower risk than most US counties. The highest-rated hazards for Boone County, where Harrison is located, are ice storm, cold wave, and lightning.
What is Harrison's biggest natural hazard risk?
Ice Storm is the highest-rated hazard for Boone County, where Harrison is located, scoring 97.3 out of 100 on FEMA's National Risk Index (rated "Very High").
Is Harrison a high-risk area for natural disasters?
No — Harrison carries lower risk than most US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Low" for Boone County.
Has Harrison had tornadoes, hail, or flooding?
NOAA has recorded 15 tornado, 102 hail, 37 inland flooding events within 25 miles of Harrison since 2016.