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Kentucky · FEMA + NOAA + National Risk Index

Mason County, KY

23 FEMA disaster declarations (1968-2026), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

23
FEMA declarations
16
Major disasters
39
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Mason County has a nationally busy FEMA history: 23 declarations, more than 62% of counties in this registry. But the state comparison tempers that reading: the total is 18% below the Kentucky county mean. FEMA's separate National Risk Index places the county safer than 39%; that score models loss and vulnerability rather than counting declarations.

Safer than 39%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
23
FEMA declarations vs 21 national county avg
16
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.

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FEMA OpenFEMA declaration desk

County FIPS 21161 · Mason County 23 declarations · rank 1233/3,266

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

  • DECL-HEAVY 23
  • MAJOR-MID 70%
  • RANK-LOWER #1,233
  • PHOTO-FINISH Roanoke
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-BELOW -18%

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

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

Mason County in the declaration-count neighbourhood

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

declarations

What this shows Mason County carries 23 FEMA declaration records, ranked 1233 of 3,266 counties in this registry.

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

How Mason County's FEMA declaration count compares nationally

Mason County vs. all counties in this dataset

FEMA disaster declarations, all-time · Mason 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

Mason County's FEMA Risk Index score

0/100100/100Kentucky avg44/10039.2/100
FEMA National Risk Index composite score vs. the Kentucky county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Mason County is led by Riverine Flooding (about $6.4M Expected Annual Loss, Historical Loss Ratio Relatively High), while Strong Wind 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 Mason County's hazard record show?

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 39.2/100 for this county (Very Low rating). Expected Annual Loss comes in at Very Low (roughly $9.7M in annualized losses). Social vulnerability (Relatively High) and community resilience (Relatively High) both factor into how that raw exposure plays out on the ground. Among the 18 modeled hazards, Strong Wind carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 4.2 times per year here, based on 158 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 16 claims and $178.4K 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.

Start with the state benchmark: a Kentucky county averages 28.1 federal declaration records, while Mason County has 23. The gap is 18% below that mean. Fewer entries indicate a quieter history of recorded federal actions, not immunity from a hazard and not a prediction about what happens next.

64 /100

Historical Activity Index

High historical activity

Mason County, KY · 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 Moderate
10/25

23 declarations (0.8x state county average of 28)

Major Disaster Share High
17/25

16 of 23 declarations are major disasters (70%)

Hazard Diversity Very High
20/20

8 different disaster types declared in Mason County

FEMA NRI 8-hazard radar - Mason County

Mason County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 8, Tornado 25, Wildfire 8, Drought 8, Heat Wave 25, Winter Storm 25. The simple mean of these eight displayed scores is 17 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 17 8-hazard mean
Mason County NRI risk profile FIPS 21161 · displayed-hazard mean 17/100
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

70%

Major-heavy

NRI risk score

39

Very Low

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

How often does each hazard strike Mason 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
Strong Wind Relatively Moderate an average of 4.2 times per year
Tornado Relatively Low roughly once every 9 years
Riverine Flooding Relatively Low an average of 1.7 times per year
Earthquake Very Low roughly once every 556 years
Heat Wave Relatively Low 5.8 modeled event-days per year
Lightning Relatively Low an average of 51 times per year
Winter Weather Relatively Low an average of 11 times per year
Landslide Very Low roughly once every 2 years
Ice Storm Relatively Low roughly once every 2 years
Hail Relatively Low an average of 3.2 times per year
Hurricane Very Low roughly once every 87 years
Drought Very Low 2.6 modeled event-days per year
Cold Wave Very Low an average of 1.4 times per year
Wildfire Very Low roughly once every 7,915 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Severe Storm 12
Flood 2
Biological 2
Severe Ice Storm 2
Snowstorm 2
Winter Storm 1
Hurricane 1
Tornado 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Mason County's record, 52% 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 - 16 69.6%

of all 23 declarations

Emergency - 7 30.4%

of all 23 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2025 2
2024 1
2021 1
2020 2
2015 1
2011 1
2010 2
2009 2
2005 1
2004 1
2003 2
2001 1
2000 1
1997 1
Show 3 earlier declaration years
1996 1
1993 1
1968 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
3633 SEVERE WINTER STORM EM Winter Storm 2026-01-24
3626 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING EM Severe Storm 2025-04-03
3624 SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, AND LANDSLIDES EM Severe Storm 2025-02-16
4782 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2024-05-22
4595 SEVERE, STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2021-04-23
4497 COVID-19 PANDEMIC DR Biological 2020-03-28
3469 COVID-19 EM Biological 2020-03-13
4218 SEVERE WINTER STORM, SNOWSTORM, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2015-05-12
1976 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2011-05-04
1925 SEVERE STORMS, FLOODING, AND MUDSLIDES DR Severe Storm 2010-07-23
1912 SEVERE STORMS, FLOODING, MUDSLIDES, AND TORNADOES DR Severe Storm 2010-05-11
1818 SEVERE WINTER STORM AND FLOODING DR Severe Ice Storm 2009-02-05
3302 SEVERE WINTER STORM EM Severe Ice Storm 2009-01-28
3231 HURRICANE KATRINA EM Hurricane 2005-09-10
1523 SEVERE STORMS, TORNADOES, FLOODING, AND MUDSLIDES DR Severe Storm 2004-06-10
1471 SEVERE STORMS, FLOODING, MUD AND ROCK SLIDES, AND TORNADOES DR Severe Storm 2003-06-03
1454 SEVERE WINTER ICE AND SNOW STORMS, HEAVY RAIN, FLOODING, TORNADOES, AND MUD AND DR Severe Storm 2003-03-14
1388 SEVERE STORMS AND FLOODING DR Severe Storm 2001-08-15
1320 SEVERE STORMS AND FLOODING DR Severe Storm 2000-02-28
1163 SEVERE STORM, FLOODING, AND TORNADOES DR Severe Storm 1997-03-04
Show 3 earlier declaration records
DR# Title Type Incident Date
1089 BLIZZARD OF 96 DR Snowstorm 1996-01-13
3104 SEVERE SNOWFALL & WINTER STORM EM Snowstorm 1993-03-16
237 TORNADOES & SEVERE STORMS DR Tornado 1968-05-04

Storm Events in Kentucky

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 6,702 9 56 $55.2M
Flash Flood 1,757 65 16 $42.6M
Flood 1,646 31 6 $37.1M
Hail 1,534 1 0 $4.7M
Winter Weather 1,079 14 54 $655.0K

Source: NOAA Storm Events Database State-level aggregated data, 2015-2025

NFIP Flood Insurance Claims

Total Claims

16

Total Paid

$178.4K

Avg Per Claim

$11.1K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 39.2/100

Expected Annual Loss

Very Low

$9.7M/year

Social Vulnerability

Relatively High

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Strong Wind covers damaging non-thunderstorm, non-tornadic wind, the kind produced by steep pressure gradients and downslope events. It is a broad, frequent, low-drama hazard: roofs, signage, power lines and high-profile vehicles, spread across a wide area rather than concentrated on a path.

For Mason County the two measures on this page point the same way: Strong Wind is the county's highest-rated modeled hazard (Relatively Moderate), and Severe Storm declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.

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

Mason County's closest FEMA peer: Anne Arundel County, MD

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Mason 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 Mason County - capture-dated entries only.

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Mason 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

Most disaster-prone counties

With 23 FEMA declarations, Mason County sits in the high-volume declaration band - see how that count ranks against other U.S. counties.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Mason County?
The most common disaster type in Mason County is Severe Storm, with 12 declarations. Other disaster types include Flood (2), Biological (2), Severe Ice Storm (2).
How does Mason County's FEMA declaration record compare with the Kentucky average?
The typical Kentucky county has 28.1 FEMA declaration records; Mason County has 23, or 18% fewer. Against the national county mean of 20.7, this county's total is 11% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Mason County received?
Mason County has received 16 major disaster declarations, representing 70% of all 23 disaster declarations.
How many flood insurance claims has Mason County filed?
Mason County has 16 National Flood Insurance Program (NFIP) claims totaling $178.4K in payments, with an average of $11.1K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Mason County?
No. In Mason County, Strong Wind has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $6.4M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Mason County?
The most active year for disaster declarations in Mason County was 2003, with 2 declarations. The county has FEMA disaster data spanning 1968 to 2026.
What is the FEMA National Risk Index score for Mason County?
According to the FEMA National Risk Index, Mason County, Kentucky has an overall risk score of 39.2 out of 100 (Very Low). Social vulnerability here rates Relatively High, while community resilience comes in at Relatively High. The Expected Annual Loss (EAL) score is Very Low, representing $9.7M in annualized losses.
Which natural hazard poses the greatest risk to Mason County?
FEMA's NRI data points to Mason County is Strong Wind (risk rating: Relatively Moderate). Other significant hazards include Tornado (Relatively Low) and Riverine Flooding (Relatively Low). FEMA's modeled event frequency puts strong wind here at an average of 4.2 times per year, drawn from 158 historical events on record. 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 Mason County · vintage 2026-08-25 · Methodology · Kentucky profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events