Biloxi, MS
Local storm history & FEMA National Risk Index data
Biloxi is rated Relatively High for overall natural hazard risk — higher risk than most US counties — based on FEMA's National Risk Index for Harrison County, MS. The county's highest-rated hazards are hurricane, lightning, and tornado.
Storm events near Biloxi
NOAA-recorded tornado, hail, and flood events within 25 miles of Biloxi's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Biloxi 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 Harrison County's FEMA National Risk Index scores, covering Biloxi along with the rest of the county, not a Biloxi-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 94.5 | Relatively Moderate |
| Inland Flooding | 90.5 | Relatively Moderate |
| Coastal Flooding | 91.6 | Relatively High |
| Earthquake | 70.5 | Relatively Low |
| Heat Wave | 94.8 | Relatively Moderate |
| Tornado | 96 | Relatively High |
| Avalanche | — | Not Applicable |
| Cold Wave | 87.7 | Relatively Moderate |
| Drought | 58.8 | Relatively Low |
| Hail | 87.5 | Relatively Moderate |
| Hurricane | 98.5 | Very High |
| Ice Storm | 75 | Relatively Moderate |
| Landslide | 33.2 | Very Low |
| Lightning | 97.1 | Very High |
| Strong Wind | 85.4 | Relatively High |
| Tsunami | — | Insufficient Data |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 74.4 | Relatively Moderate |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Harrison County risk profile for disaster declarations, social vulnerability, and climate projection data.
Other cities in Harrison County:
More on Harrison County:
Frequently asked questions
What natural hazards is Biloxi, MS at risk of?
Biloxi is rated Relatively High for overall natural hazard risk by FEMA's National Risk Index — higher risk than most US counties. The highest-rated hazards for Harrison County, where Biloxi is located, are hurricane, lightning, and tornado.
What is Biloxi's biggest natural hazard risk?
Hurricane is the highest-rated hazard for Harrison County, where Biloxi is located, scoring 98.5 out of 100 on FEMA's National Risk Index (rated "Very High").
Is Biloxi a high-risk area for natural disasters?
Yes — Biloxi carries higher risk than most US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively High" for Harrison County.
Has Biloxi had tornadoes, hail, or flooding?
NOAA has recorded 44 tornado, 43 hail, 63 inland flooding events within 25 miles of Biloxi since 2016.