FEMA Records
24
Above median
Tennessee · FEMA + NOAA + National Risk Index
Lewis County, TN
24 FEMA disaster declarations (1975-2026), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.
- 24
- FEMA declarations
- 20
- Major disasters
- 14
- NRI risk · Very Low
- Severe Storm
- Top hazard
The verdict
Two federal records point in the busier direction for Lewis County. Its 24 FEMA declarations are 12% above the Tennessee county mean and exceed the count for 66% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 14%, based on modeled expected annual loss, social vulnerability, and community resilience.
- Safer than 14%
- of U.S. counties for FEMA National Risk Index score
- Very Low
- FEMA National Risk Index rating
- 24
- FEMA declarations vs 21 national county avg
- 19
- NFIP flood insurance claims filed
FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Major Disaster (DR) and Emergency (EM) records; an EM authorizes a narrower set of federal assistance than a DR.
FEMA OpenFEMA declaration desk
County FIPS 47101 · Lewis County 24 declarations · rank 1013/3,266
DECL-HEAVY · MAJOR-HEAVY · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE
- DECL-HEAVY 24
- MAJOR-HEAVY 83%
- RANK-LOWER #1,013
- PHOTO-FINISH Eddy
- NRI-LOW Very Low
- ACT-HIGH High
- TYPE-LEAD Severe Storm
- VS-ST-ABOVE +12%
Nearest declaration peer: Eddy, ND (0 declaration gap)
FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Tennessee state profile
Lewis County in the declaration-count neighbourhood
FEMA declaration records among Lewis County and nearest peers by total count
- Los Angeles · largest
Los Angeles · largest
88 declarations
- Deuel · near 24
Deuel · near
24 declarations
- Eddy · near 24
Eddy · near
24 declarations
- Lewis · this county 24
Lewis · this county
24 declarations
- Wichita · near 24
Wichita · near
24 declarations
- Ujelang · smallest 1
Ujelang · smallest
1 declarations
What this shows Lewis County carries 24 FEMA declaration records, ranked 1013 of 3,266 counties in this registry.
How Lewis County's FEMA declaration count compares nationally
Lewis County vs. all counties in this dataset
FEMA disaster declarations, all-time · Lewis County
24 Top 34% higher than 66% of 3,266 counties
Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source FEMA Disaster Declarations Summaries v2 · 2026-08-25
Lewis County's FEMA Risk Index score
Which hazard drives modeled loss here?
FEMA's modeled annual dollar loss for Lewis County is led by Tornado (about $1.6M Expected Annual Loss, Historical Loss Ratio Very High), while Earthquake carries the highest National Risk Index rating (Relatively Low). EAL and risk score use different inputs; they need not agree.
Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.
What does Lewis County's hazard record show?
FEMA National Risk Index
FEMA's National Risk Index places this county in the low end of the national distribution, composite score 13.9/100 (Very Low). Expected Annual Loss is rated Very Low (roughly $5.4M in annualized losses). Two modifiers shape how that exposure becomes real-world harm here: social vulnerability (Relatively Moderate) and community resilience (Very Low). Even the county's top-rated hazard, Earthquake, only reaches Relatively Low on FEMA's scale, none of the 18 modeled hazards stand out here. FEMA's modeled frequency puts that hazard at roughly once every 277 years here.
Reading the federal records together
This county has a small entry in FEMA's NFIP paid-claims table: 19 claims and $477.4K paid in total. PlainHazard calls 1-49 claims a light registry record, a label for this dataset rather than a finding that flood exposure is low. A short claims history can also reflect insurance take-up, the period covered, or losses that were never insured.
The declaration register points in the busier direction. Lewis County's 24 federal records stand 12% above the Tennessee county mean of 21.4. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.
65 /100
Historical Activity Index
High historical activity
Lewis County, TN · PlainHazard-derived composite from federal records
This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology
FEMA Declarations (1953–present) High
17/30
24 OpenFEMA declarations, full ingest window (1.2x national county average)
County Disaster Density High
14/25
24 declarations (1.1x state county average of 21)
Major Disaster Share Very High
21/25
20 of 24 declarations are major disasters (83%)
Hazard Diversity High
13/20
5 different disaster types declared in Lewis County
FEMA NRI 8-hazard radar - Lewis County
How to read this radar
Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.
Major Disaster share
83%
Mostly major
NRI risk score
14
Very Low
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Lewis County?
FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.
| Hazard | NRI Risk Rating | Recurrence |
|---|---|---|
| Earthquake | Relatively Low | roughly once every 277 years |
| Tornado | Relatively Low | roughly once every 4 years |
| Landslide | Very Low | roughly once every 1 years |
| Cold Wave | Relatively Low | an average of 1.2 times per year |
| Hurricane | Very Low | roughly once every 38 years |
| Strong Wind | Relatively Low | an average of 5.3 times per year |
| Ice Storm | Relatively Low | roughly once every 1 years |
| Lightning | Relatively Low | an average of 60 times per year |
| Heat Wave | Very Low | 5.6 modeled event-days per year |
| Winter Weather | Relatively Low | an average of 4.7 times per year |
| Drought | Very Low | 14 modeled event-days per year |
| Riverine Flooding | Very Low | roughly once every 1 years |
| Wildfire | Very Low | roughly once every 4,679 years |
| Hail | Very Low | an average of 3.6 times per year |
Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Severe Storm 16
Flood 3
Winter Storm 2
Biological 2
Hurricane 1
What Severe Storm declarations mean here
Severe Storm is the most frequent declaration type on Lewis County's record, 67% of its declarations. In FEMA's vocabulary this covers convective weather: thunderstorm straight-line winds, large hail, and the multi-day outbreaks that often carry embedded tornadoes. Activity is heaviest in spring and summer, though the season varies by region.
These events behave differently from a hurricane on paper. Damage tends to be distributed along a storm track rather than concentrated on a coastline, and a declaration typically follows an outbreak that crossed several counties over a few days, not a single point of impact. Because the qualifying threshold is the cost of uninsured public and individual losses rather than storm intensity, two similar storms can produce a declaration in one year and none in another.
Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.
Declaration Types
What DR / EM / FM mean
FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).
Major Disaster - 20 83.3%
of all 24 declarations
Emergency - 4 16.7%
of all 24 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2026 | 2 | |
| 2025 | 2 | |
| 2023 | 2 | |
| 2020 | 3 | |
| 2019 | 1 | |
| 2014 | 1 | |
| 2011 | 1 | |
| 2010 | 1 | |
| 2008 | 1 | |
| 2005 | 1 | |
| 2003 | 2 | |
| 2002 | 1 | |
| 1999 | 2 | |
| 1998 | 1 | |
| 1994 | 1 | |
Show 2 earlier declaration years
| 1991 | 1 | |
| 1975 | 1 | |
Disaster Declarations
How the 24 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 24 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4898 | SEVERE WINTER STORM | DR | Winter Storm | 2026-02-06 |
| 3635 | SEVERE WINTER STORM | EM | Winter Storm | 2026-01-24 |
| 4878 | SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING | DR | Severe Storm | 2025-06-19 |
| 3625 | SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING | EM | Severe Storm | 2025-04-02 |
| 4712 | SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADO | DR | Severe Storm | 2023-05-17 |
| 4701 | SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOES | DR | Severe Storm | 2023-04-07 |
| 4550 | SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING | DR | Severe Storm | 2020-07-09 |
| 4514 | COVID-19 PANDEMIC | DR | Biological | 2020-04-02 |
| 3473 | COVID-19 | EM | Biological | 2020-03-13 |
| 4427 | SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES | DR | Flood | 2019-04-17 |
| 4189 | SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING | DR | Severe Storm | 2014-08-13 |
| 1974 | SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND ASSOCIATED FLOODING | DR | Severe Storm | 2011-05-01 |
| 1909 | SEVERE STORMS, FLOODING, STRAIGHT-LINE WINDS, AND TORNADOES | DR | Severe Storm | 2010-05-04 |
| 1745 | SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING | DR | Severe Storm | 2008-02-07 |
| 3217 | HURRICANE KATRINA EVACUATION | EM | Hurricane | 2005-09-05 |
| 1464 | SEVERE STORMS, TORNADOES, AND FLOODING | DR | Severe Storm | 2003-05-08 |
| 1456 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2003-03-20 |
| 1408 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2002-04-05 |
| 1262 | SEVERE STORMS, TORNADOES AND HIGH WINDS | DR | Severe Storm | 1999-01-19 |
| 1260 | SEVERE WINTER STORM | DR | Severe Storm | 1999-01-15 |
Show 4 earlier declaration records
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 1235 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 1998-07-23 |
| 1010 | SEVERE WINTER ICE STORM,FLASH FLOODING | DR | Severe Storm | 1994-02-28 |
| 910 | SEVERE STORMS & FLOODING | DR | Flood | 1991-06-21 |
| 459 | SEVERE STORMS & FLOODING | DR | Flood | 1975-03-22 |
Storm Events in Tennessee
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Lewis County.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| Thunderstorm Wind | 6,558 | 22 | 58 | $107.0M |
| Hail | 1,690 | 0 | 0 | $545.5K |
| Heat | 1,343 | 9 | 15 | $0 |
| Flash Flood | 1,264 | 55 | 3 | $334.4M |
| Winter Weather | 1,088 | 5 | 0 | $261.0K |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
19
Total Paid
$477.4K
Avg Per Claim
$25.1K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Very Low
Score: 13.9/100
Expected Annual Loss
Very Low
$5.4M/year
Social Vulnerability
Relatively Moderate
Community Resilience
Very Low
Hazard Risk Breakdown
Earthquake Relatively Low
Tornado Relatively Low
Landslide Very Low
Cold Wave Relatively Low
Hurricane Very Low
Strong Wind Relatively Low
Ice Storm Relatively Low
Lightning Relatively Low
Heat Wave Very Low
Winter Weather Relatively Low
Drought Very Low
Riverine Flooding Very Low
Wildfire Very Low
Hail Very Low
Source: FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri
The model's sharpest exposure here: Earthquake
Earthquake is the model's clearest example of a hazard with no season and no warning. Its expected loss is driven less by how often shaking occurs than by how much of the building stock predates modern seismic codes, so exposure can be high in places where nothing has happened for a long time.
Worth noting for Lewis County: the model and the federal record do NOT point at the same hazard. Earthquake carries the highest modeled rating (Relatively Low), while the county's declaration history is led by Severe Storm. That is not a contradiction, the two measure genuinely different things. Declarations record federal ACTION, which requires damage costly enough to exceed state and local capacity; the Risk Index models EXPECTED annual loss across all 18 hazards whether or not any declaration ever followed. A hazard can be the county's largest modeled exposure and never once have driven a declaration.
National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.
Data-matched county comparisons
Lewis County's closest FEMA peer: Blue Earth County, MN
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Lewis County. Record similarity, not a safety rating.
Closest declaration profiles
Lewis County shows 24 FEMA declarations, led by Severe Storm.
Similar Major-disaster share
Lewis County: 20 of 24 of its declarations are Major.
Similar modeled NRI score
Lewis County: NRI composite 13.9 (Very Low).
How these peers are chosen
Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.
Retained FEMA snapshot feed for Lewis County - capture-dated entries only.
Compare beyond this state
Nationwide peers by NRI score & FEMA declaration volume
Two PlainHazard-derived comparison paths for Lewis County: nearest out-of-state National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.
Similar NRI composite
Nearest out-of-state counties by FEMA NRI score. This county: 13.9 (Very Low).
Similar declaration volume
Nearest out-of-state counties by FEMA declaration count. This county: 24. NRI peers are excluded so the two link sets stay distinct.
Further reading for this county
Most disaster-prone counties
With 24 FEMA declarations, Lewis County sits in the high-volume declaration band - see how that count ranks against other U.S. counties.
More PlainHazard guides
- Most disaster-prone counties - U.S. counties ranked by FEMA declaration totals.
- Understanding disaster data - declarations vs storm events vs NRI scores.
- Preparing for natural disasters - household checklist (not county-specific advice).
Frequently Asked Questions
What is the most common disaster type in Lewis County?
The most common disaster type in Lewis County is Severe Storm, with 16 declarations. Other disaster types include Flood (3), Winter Storm (2), Biological (2).
How does Lewis County's FEMA declaration record compare with the Tennessee average?
FEMA lists 24 declaration records for Lewis County. That is 12% above the Tennessee county mean of 21.4. Its count is also 16% above the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Lewis County received?
Lewis County has received 20 major disaster declarations, representing 83% of all 24 disaster declarations.
How many flood insurance claims has Lewis County filed?
Lewis County has 19 National Flood Insurance Program (NFIP) claims totaling $477.4K in payments, with an average of $25.1K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Lewis County?
No. In Lewis County, Earthquake has the highest National Risk Index rating (Relatively Low), while Tornado leads Expected Annual Loss at about $1.6M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Lewis County?
The most active year for disaster declarations in Lewis County was 2020, with 3 declarations. The county has FEMA disaster data spanning 1975 to 2026.
What is the FEMA National Risk Index score for Lewis County?
According to the FEMA National Risk Index, Lewis County, Tennessee has an overall risk score of 13.9 out of 100 (Very Low). The county's social vulnerability rating is Relatively Moderate and community resilience is Very Low. The Expected Annual Loss (EAL) score is Very Low, representing $5.4M in annualized losses.
Which natural hazard poses the greatest risk to Lewis County?
Based on FEMA NRI data, the highest-risk natural hazard in Lewis County as of the latest release is Earthquake (risk rating: Relatively Low). Other significant hazards include Tornado (Relatively Low) and Landslide (Very Low). FEMA's modeled event frequency puts earthquake here at roughly once every 277 years. The underlying methodology weighs historical event frequency against exposed assets and community vulnerability.
Data Sources & Methodology
Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.
Storm event data is sourced from the NOAA Storm Events Database (2015-2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.
Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.
This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.
FEMA OpenFEMA declarations + NRI for Lewis County · vintage 2026-08-25 · Methodology · Tennessee profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events