Hannibal, MO
Local storm history & FEMA National Risk Index data
Hannibal is rated Relatively Low for overall natural hazard risk — lower risk than most US counties — based on FEMA's National Risk Index for Marion County, MO. The county's highest-rated hazards are heat wave, landslide, and strong wind.
Storm events near Hannibal
NOAA-recorded tornado, hail, and flood events within 25 miles of Hannibal's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Hannibal 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 Marion County's FEMA National Risk Index scores, covering Hannibal along with the rest of the county, not a Hannibal-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 30.8 | Very Low |
| Inland Flooding | 59.3 | Relatively Low |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 50.9 | Very Low |
| Heat Wave | 79.7 | Relatively Moderate |
| Tornado | 45.8 | Relatively Low |
| Avalanche | — | Not Applicable |
| Cold Wave | 59.1 | Relatively Low |
| Drought | 61.6 | Relatively Low |
| Hail | 67.1 | Relatively Low |
| Hurricane | 15.9 | Very Low |
| Ice Storm | 38 | Relatively Low |
| Landslide | 78 | Relatively Low |
| Lightning | 55.6 | Relatively Low |
| Strong Wind | 70.5 | Relatively Moderate |
| Tsunami | — | Not Applicable |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 28 | Relatively Low |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Marion County risk profile for disaster declarations, social vulnerability, and climate projection data.
More on Marion County:
Frequently asked questions
What natural hazards is Hannibal, MO at risk of?
Hannibal 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 Marion County, where Hannibal is located, are heat wave, landslide, and strong wind.
What is Hannibal's biggest natural hazard risk?
Heat Wave is the highest-rated hazard for Marion County, where Hannibal is located, scoring 79.7 out of 100 on FEMA's National Risk Index (rated "Relatively Moderate").
Is Hannibal a high-risk area for natural disasters?
No — Hannibal carries lower risk than most US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Low" for Marion County.
Has Hannibal had tornadoes, hail, or flooding?
NOAA has recorded 8 tornado, 68 hail, 19 inland flooding events within 25 miles of Hannibal since 2016.