Madison County, Alabama Natural Disaster Risk
FEMA National Risk Index assessment · AL
HighComposite Risk Score
National percentile: 95th
Madison County faces high composite natural disaster risk (NRI Risk Index score 94.6, 95th national percentile), driven primarily by tornado and strong wind exposure. Expected annual loss across all 18 hazard types is $180M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Risk Overview
Madison County carries a high composite natural disaster risk, with a National Risk Index score of 94.6 out of 100 — placing it in the 95th national percentile and in the upper tier of natural-disaster risk nationally. The score blends Expected Annual Loss, Social Vulnerability, and Community Resilience across all 18 FEMA hazard types.
The county's risk is driven primarily by tornado (violently rotating columns of air capable of catastrophic local damage) at High risk — $32M in expected annual loss and about 0.87 events per year; strong wind (damaging straight-line winds outside of tornadoes and hurricanes) at High risk — $5M in expected annual loss and about 6.26 events per year; and lightning (electrical discharges from storms that ignite fires and cause casualties) at Very High risk — $3M in expected annual loss and about 61.34 events per year. Across all hazards, FEMA estimates $180M in expected annual loss for a population of 388K.
Beyond physical exposure, Madison County has a low social vulnerability rating (how susceptible the population is to harm) and a very high community resilience rating (its capacity to prepare for and recover from disasters). A less vulnerable population paired with strong resilience helps the community absorb and recover from events.
The federal record bears this out: Madison County has received 21 federal disaster declarations since 1973, including 7 for severe storm events and 6 for hurricane events. The most recent was Hurricane Helene (hurricane), declared in September 2024.
Among 67 Alabama counties, Madison County ranks #4 for overall natural disaster risk.
Top Hazards
All 18 Hazard Risks
| Tornado | High | 0.87 / yr | $32M |
| Strong Wind | High | 6.26 / yr | $5M |
| Lightning | Very High | 61.34 / yr | $3M |
| Cold Wave | High | 1.42 / yr | $16M |
| Riverine Flood | High | 3.68 / yr | $99M |
| Winter Weather | High | 4.74 / yr | $778K |
| Earthquake | Medium | 0.00 / yr | $15M |
| Heat Wave | Medium | 7.58 / yr | $6M |
| Ice Storm | High | 0.87 / yr | $1M |
| Hurricane | Low | 0.02 / yr | $685K |
| Drought | Low | 26.69 / yr | $326K |
| Hail | Low | 4.42 / yr | $307K |
| Wildfire | Very Low | 0.00 / yr | $23K |
| Landslide | Very Low | 0.36 / yr | $531 |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Disaster History
Madison County has received 21 federal disaster declarations since 1973, most recently Hurricane Helene in September 2024. Most frequent causes: Severe Storm (7), Hurricane (6), Tornado (3).
| Declared | Type | Disaster |
|---|---|---|
| September 2024 | Hurricane | Hurricane Helene |
| September 2020 | Hurricane | Hurricane Sally |
| March 2020 | Biological | Covid-19 Pandemic |
| March 2020 | Biological | Covid-19 |
| April 2019 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, and Flooding |
| September 2017 | Hurricane | Hurricane Irma |
| April 2011 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, and Flooding |
| April 2011 | Severe Storm | Severe Storms, Tornadoes, and Straight-Line Winds |
| August 2008 | Hurricane | Hurricane Gustav |
| September 2005 | Hurricane | Hurricane Katrina Evacuation |
Showing the 10 most recent of 21 declarations.
Source: FEMA Disaster Declarations Summaries (OpenFEMA).
Frequently Asked Questions
What is the overall natural disaster risk for Madison County?
Madison County has a composite FEMA National Risk Index score of 94.6 out of 100, placing it in the High category and the 95th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Madison County?
The three highest-rated hazards are Tornado (High, $32M EAL), Strong Wind (High, $5M EAL), Lightning (Very High, $3M EAL). These account for most of the county's expected annual losses.
How does Madison County compare to other Alabama counties?
Madison County ranks #4 of 67 Alabama counties for overall natural disaster risk, with a high rating.
How many federally declared disasters has Madison County had?
FEMA records 21 federal disaster declarations for Madison County since 1973, most often 7 for severe storm events and 6 for hurricane events. The most recent was Hurricane Helene, declared in September 2024.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Madison County's $180M EAL is a statistical average, not a guarantee for any specific year or address.