Alcoa, TN
Local storm history & FEMA National Risk Index data
Alcoa is rated Relatively Low for overall natural hazard risk — lower risk than most US counties — based on FEMA's National Risk Index for Blount County, TN. The county's highest-rated hazards are landslide, earthquake, and lightning.
Storm events near Alcoa
NOAA-recorded tornado, hail, and flood events within 25 miles of Alcoa's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Alcoa 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 Blount County's FEMA National Risk Index scores, covering Alcoa along with the rest of the county, not a Alcoa-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 69.4 | Relatively Low |
| Inland Flooding | 74 | Relatively Moderate |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 93.1 | Relatively Moderate |
| Heat Wave | 42.3 | Relatively Low |
| Tornado | 67.4 | Relatively Moderate |
| Avalanche | — | Not Applicable |
| Cold Wave | 73.5 | Relatively Moderate |
| Drought | 34.1 | Relatively Low |
| Hail | 39.9 | Relatively Low |
| Hurricane | 55.6 | Very Low |
| Ice Storm | 74.3 | Relatively Moderate |
| Landslide | 96.4 | Relatively Moderate |
| Lightning | 90.1 | Relatively High |
| Strong Wind | 65.1 | Relatively Moderate |
| Tsunami | — | Not Applicable |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 70.8 | Relatively Moderate |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Blount County risk profile for disaster declarations, social vulnerability, and climate projection data.
Other cities in Blount County:
More on Blount County:
Frequently asked questions
What natural hazards is Alcoa, TN at risk of?
Alcoa 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 Blount County, where Alcoa is located, are landslide, earthquake, and lightning.
What is Alcoa's biggest natural hazard risk?
Landslide is the highest-rated hazard for Blount County, where Alcoa is located, scoring 96.4 out of 100 on FEMA's National Risk Index (rated "Relatively Moderate").
Is Alcoa a high-risk area for natural disasters?
No — Alcoa carries lower risk than most US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Low" for Blount County.
Has Alcoa had tornadoes, hail, or flooding?
NOAA has recorded 4 tornado, 107 hail, 108 inland flooding events within 25 miles of Alcoa since 2016.