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Tennessee · FEMA + NOAA + National Risk Index

Sevier County, TN

23 FEMA disaster declarations (1972-2026), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Severe Storm.

23
FEMA declarations
15
Major disasters
77
NRI risk · Relatively Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Sevier County. Its 23 FEMA declarations are 7% above the Tennessee county mean and exceed the count for 62% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 23%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 23%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
23
FEMA declarations vs 21 national county avg
349
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Fire Management Assistance (FM) records, which are not presidential disaster declarations, alongside Major Disaster (DR) and Emergency (EM) records.

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FEMA OpenFEMA declaration desk

County FIPS 47155 · Sevier County 23 declarations · rank 1200/3,266

DECL-HEAVY · MAJOR-MID · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE

  • DECL-HEAVY 23
  • MAJOR-MID 65%
  • RANK-LOWER #1,200
  • PHOTO-FINISH Roanoke
  • NRI-LOW 77
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-ABOVE +7%

Nearest declaration peer: Roanoke, VA (0 declaration gap)

FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Tennessee state profile

Sevier County in the declaration-count neighbourhood

FEMA declaration records among Sevier County and nearest peers by total count

declarations

What this shows Sevier County carries 23 FEMA declaration records, ranked 1200 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

How Sevier County's FEMA declaration count compares nationally

Sevier County vs. all counties in this dataset

FEMA disaster declarations, all-time · Sevier County

23 Top 38% higher than 62% of 3,266 counties

This county 0 90 all U.S. counties FEMA tracks, bucketed by value

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

Sevier County's FEMA Risk Index score

0/100100/100Tennessee avg53/10077.4/100
FEMA National Risk Index composite score vs. the Tennessee county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Sevier County is led by Riverine Flooding (about $20.6M Expected Annual Loss, Historical Loss Ratio Relatively Low), while Landslide carries the highest National Risk Index rating (Relatively Moderate). 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 Sevier County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 349 paid claims, totaling $4.1M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $11.8K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

The declaration register points in the busier direction. Sevier County's 23 federal records stand 7% 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.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 77.4/100 (Relatively Low). Expected Annual Loss is rated Relatively Low (roughly $32.1M in annualized losses). Social vulnerability reads Relatively Moderate and community resilience Relatively Low, both critical modifiers of realized harm here. Among the 18 modeled hazards, Landslide carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 2.5 times per year here.

66 /100

Historical Activity Index

High historical activity

Sevier 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

23 OpenFEMA declarations, full ingest window (1.1x national county average)

County Disaster Density High
13/25

23 declarations (1.1x state county average of 21)

Major Disaster Share High
16/25

15 of 23 declarations are major disasters (65%)

Hazard Diversity Very High
20/20

9 different disaster types declared in Sevier County

FEMA NRI 8-hazard radar - Sevier County

Sevier County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 48, Hurricane 8, Tornado 48, Wildfire 25, Drought 8, Heat Wave 8, Winter Storm 48. The simple mean of these eight displayed scores is 27 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 27 8-hazard mean
Sevier County NRI risk profile FIPS 47155 · displayed-hazard mean 27/100
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.

FEMA Records

23

Above median

Major Disaster share

65%

Major-heavy

NRI risk score

77

Relatively Low

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Sevier 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
Landslide Relatively Moderate an average of 2.5 times per year
Earthquake Relatively Low roughly once every 230 years
Lightning Relatively High an average of 55 times per year
Riverine Flooding Relatively Moderate an average of 1.5 times per year
Winter Weather Relatively Moderate an average of 9.1 times per year
Wildfire Relatively Low roughly once every 384 years
Tornado Relatively Moderate roughly once every 7 years
Cold Wave Relatively Moderate an average of 1.5 times per year
Strong Wind Relatively Moderate an average of 4.3 times per year
Ice Storm Relatively Moderate roughly once every 5 years
Hurricane Very Low roughly once every 64 years
Hail Relatively Low an average of 3 times per year
Heat Wave Very Low 0.5 modeled event-days per year
Drought Very Low 23 modeled event-days 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 7
Flood 4
Fire 4
Winter Storm 2
Biological 2
Tropical Storm 1
Severe Ice Storm 1
Hurricane 1
Snowstorm 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Sevier County's record, 30% 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 - 15 65.2%

of all 23 declarations

Emergency - 5 21.7%

of all 23 declarations

Fire Management - 3 13.0%

of all 23 declarations

FEMA Declarations Timeline

Year Declarations
2026 2
2025 2
2020 2
2019 1
2017 3
2015 1
2005 1
2003 1
2002 2
2001 1
1999 1
1998 2
1994 1
1993 1
1973 1
Show 1 earlier declaration years
1972 1

Disaster Declarations

How the 23 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 23 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
3625 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING EM Severe Storm 2025-04-02
4832 TROPICAL STORM HELENE DR Tropical Storm 2024-10-02
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
4320 SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2017-06-23
4293 WILDFIRES DR Fire 2016-12-15
5167 CHIMNEY TOP FIRE FM Fire 2016-11-28
4211 SEVERE WINTER STORM AND FLOODING DR Severe Ice Storm 2015-04-02
3217 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-05
1464 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2003-05-08
1408 SEVERE STORMS AND FLOODING DR Severe Storm 2002-04-05
2389 TN - RIDGE CREST FIRE - 11/14/2001 FM Fire 2001-11-14
2346 TN - KNOXVILLE FIRE COMPLEX - 11/02/00 FM Fire 2000-11-02
1260 SEVERE WINTER STORM DR Severe Storm 1999-01-15
1215 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 1998-04-20
1197 SEVERE STORMS AND FLOODING DR Severe Storm 1998-01-13
1022 EXTENSIVE RAINFALL AND FLASH FLOODING DR Flood 1994-04-14
Show 3 earlier declaration records
DR# Title Type Incident Date
3095 SEVERE SNOWFALL, WINTER STORM EM Snowstorm 1993-03-14
366 HEAVY RAINS & FLOODING DR Flood 1973-03-21
331 HEAVY RAINS & FLOODING DR Flood 1972-05-15

Storm Events in Tennessee

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Sevier 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

349

Total Paid

$4.1M

Avg Per Claim

$11.8K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 77.4/100

Expected Annual Loss

Relatively Low

$32.1M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively Low

Hazard Risk Breakdown

Landslide Relatively Moderate
Earthquake Relatively Low
Lightning Relatively High
Riverine Flooding Relatively Moderate
Winter Weather Relatively Moderate
Wildfire Relatively Low
Tornado Relatively Moderate
Cold Wave Relatively Moderate
Strong Wind Relatively Moderate
Ice Storm Relatively Moderate
Hurricane Very Low
Hail Relatively Low
Heat Wave Very Low
Drought 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: Landslide

Landslide risk is a function of slope, soil and water, so it is usually a SECOND-ORDER hazard: it is triggered by the rainfall, snowmelt, wildfire burn scars or seismic shaking that came first. That is why a county can carry high landslide exposure whose realized damage is recorded under a flood or storm declaration instead.

Worth noting for Sevier County: the model and the federal record do NOT point at the same hazard. Landslide carries the highest modeled rating (Relatively Moderate), 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

Sevier County's closest FEMA peer: Lumpkin County, GA

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Sevier County. Record similarity, not a safety rating.

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 Sevier County - capture-dated entries only.

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Sevier 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.

Further reading for this county

Understanding disaster data

Sevier County's NFIP claims file (349 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Sevier County?
The most common disaster type in Sevier County is Severe Storm, with 7 declarations. Other disaster types include Flood (4), Fire (4), Winter Storm (2).
How does Sevier County's FEMA declaration record compare with the Tennessee average?
FEMA lists 23 declaration records for Sevier County. That is 7% above the Tennessee county mean of 21.4. Its count is also 11% 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 Sevier County received?
Sevier County has received 15 major disaster declarations, representing 65% of all 23 disaster declarations.
How many flood insurance claims has Sevier County filed?
Sevier County has 349 National Flood Insurance Program (NFIP) claims totaling $4.1M in payments, with an average of $11.8K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Sevier County?
No. In Sevier County, Landslide has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $20.6M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Sevier County?
The most active year for disaster declarations in Sevier County was 2017, with 3 declarations. The county has FEMA disaster data spanning 1972 to 2026.
What is the FEMA National Risk Index score for Sevier County?
According to the FEMA National Risk Index, Sevier County, Tennessee has an overall risk score of 77.4 out of 100 (Relatively Low). The county's social vulnerability rating is Relatively Moderate and community resilience is Relatively Low. The Expected Annual Loss (EAL) score is Relatively Low, representing $32.1M in annualized losses.
Which natural hazard poses the greatest risk to Sevier County?
The top hazard flagged by FEMA's NRI for Sevier County as of the latest release is Landslide (risk rating: Relatively Moderate). Other significant hazards include Earthquake (Relatively Low) and Lightning (Relatively High). FEMA's modeled event frequency puts landslide here at an average of 2.5 times per year. FEMA derives these ratings from historical event frequency, the assets exposed, and the community's vulnerability profile.
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 Sevier County · vintage 2026-08-25 · Methodology · Tennessee profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events