Alleghany County, Virginia: hazard risk

FEMA rates Alleghany County's overall risk Very Low (score 38.1 of 100, higher than 38% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by strong wind. Its storm record holds 331 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).

National Risk Index (December 2025), Alleghany County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Strong WindRelatively High88.5$1.7M
LightningRelatively Moderate62.8$336K
LandslideRelatively Low83.6$23K
AvalancheRelatively Low67.8$3K
Riverine FloodingRelatively Low56.3$7.3M
Cold WaveRelatively Low55.8$1.1M
Winter WeatherRelatively Low35.0$33K
HurricaneVery Low54.9$110K
EarthquakeVery Low34.2$95K
DroughtVery Low26.6$14K
WildfireVery Low18.1$6K
HailVery Low16.0$50K
Ice StormVery Low15.1$9K
TornadoVery Low9.4$52K
Heat WaveVery Low3.7$3K

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

Storm records by hazard, with the county's rank by days with a record per 1,000 sq mi over each hazard's complete period
HazardRecordsDeathsDamageRank in stateRank in U.S.
Severe thunderstorm wind1020$878K87th of 961623rd of 3,080
Winter storms750$107K71st of 96893rd of 3,077
High wind and dust storms431$349K22nd of 96365th of 3,080
Floods391$16M66th of 961047th of 3,080
Hail390$1K63rd of 962118th of 3,080
Drought120$398K36th of 961429th of 3,063
Extreme cold90$307K36th of 961218th of 3,076
Heavy rain30–88th of 961155th of 3,080
Lightning30$211K52nd of 961002nd of 3,080
Wildfires30$4.4M10th of 96551st of 2,972
Landslides and avalanches20–5th of 96168th of 2,278
Hurricanes and tropical storms10–69th of 96895th of 1,849

Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.

The full Alleghany County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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