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Kansas · FEMA + NOAA + National Risk Index

Brown County, KS

18 FEMA disaster declarations (1973-2022), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

18
FEMA declarations
15
Major disasters
15
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Brown County. Its 18 FEMA declarations are 0% above the Kansas county mean and exceed the count for 37% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 15%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 15%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
18
FEMA declarations vs 21 national county avg
1
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 20013 · Brown County 18 declarations · rank 1938/3,266

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

  • DECL-MID 18
  • MAJOR-HEAVY 83%
  • RANK-LOWER #1,938
  • PHOTO-FINISH Monroe
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-ABOVE +0%

Nearest declaration peer: Monroe, TN (0 declaration gap)

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

Brown County in the declaration-count neighbourhood

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

declarations

What this shows Brown County carries 18 FEMA declaration records, ranked 1938 of 3,266 counties in this registry.

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

How Brown County's FEMA declaration count compares nationally

Brown County vs. all counties in this dataset

FEMA disaster declarations, all-time · Brown County

18 37th percentile higher than 37% 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

Brown County's FEMA Risk Index score

0/100100/100Kansas avg30/10015.3/100
FEMA National Risk Index composite score vs. the Kansas county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Brown County is led by Riverine Flooding (about $2.5M Expected Annual Loss, Historical Loss Ratio Relatively High), while Drought 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 Brown County's hazard record show?

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 15.3/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $7.2M in annualized losses), tempered or compounded by a Relatively Low social-vulnerability score and Very High community-resilience score. Among the 18 modeled hazards, Drought carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at 15 modeled event-days per year here, based on 448 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 1 claim and $15.0K 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. Brown County's 18 federal records stand 0% above the Kansas county mean of 18.0. 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.

57 /100

Historical Activity Index

High historical activity

Brown County, KS · 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) Moderate
13/30

18 OpenFEMA declarations, full ingest window (0.9x national county average)

County Disaster Density High
13/25

18 declarations (1.0x state county average of 18)

Major Disaster Share Very High
21/25

15 of 18 declarations are major disasters (83%)

Hazard Diversity High
10/20

4 different disaster types declared in Brown County

FEMA NRI 8-hazard radar - Brown County

Brown County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 0, Tornado 25, Wildfire 25, Drought 48, Heat Wave 25, Winter Storm 25. The simple mean of these eight displayed scores is 21 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 21 8-hazard mean
Brown County NRI risk profile FIPS 20013 · displayed-hazard mean 21/100
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

18

Below median

Major Disaster share

83%

Mostly major

NRI risk score

15

Very Low

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

How often does each hazard strike Brown 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
Drought Relatively Moderate 15 modeled event-days per year
Wildfire Relatively Low roughly once every 531 years
Hail Relatively Low an average of 7.9 times per year
Heat Wave Relatively Low 11 modeled event-days per year
Tornado Relatively Low roughly once every 2 years
Ice Storm Relatively Low roughly once every 1 years
Landslide Very Low roughly once every 8 years
Strong Wind Relatively Low an average of 5.4 times per year
Winter Weather Relatively Low an average of 11 times per year
Earthquake Very Low roughly once every 1,318 years
Lightning Very Low an average of 49 times per year
Cold Wave Very Low an average of 3.8 times per year
Riverine Flooding Very Low roughly once every 1 years
Hurricane No Rating roughly once every 1,472 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 3
Biological 2
Hurricane 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Brown 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 - 15 83.3%

of all 18 declarations

Emergency - 3 16.7%

of all 18 declarations

FEMA Declarations Timeline

Year Declarations
2022 1
2020 2
2019 1
2015 1
2010 2
2008 3
2007 1
2005 2
1993 1
1984 1
1977 1
1973 2

Disaster Declarations

How the 18 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 18 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4640 SEVERE STORMS AND STRAIGHT LINE WINDS DR Severe Storm 2022-02-17
4504 COVID-19 PANDEMIC DR Biological 2020-03-29
3481 COVID-19 EM Biological 2020-03-13
4449 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, FLOODING,LANDSLIDES,AND MUDSLIDES DR Severe Storm 2019-06-20
4230 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-07-20
1932 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2010-08-10
1885 SEVERE WINTER STORMS AND SNOWSTORM DR Severe Storm 2010-03-09
1776 SEVERE STORMS, FLOODING AND TORNADOES DR Severe Storm 2008-07-09
1741 SEVERE WINTER STORMS DR Severe Storm 2008-02-01
3282 SEVERE WINTER STORMS EM Severe Storm 2007-12-12
1699 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2007-05-06
3236 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1579 SEVERE WINTER STORMS, HEAVY RAINS, AND FLOODING DR Severe Storm 2005-02-08
1000 SEVERE STORMS & FLOODING DR Flood 1993-07-22
714 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1984-06-22
539 SEVERE STORMS & FLOODING DR Flood 1977-09-20
403 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1973-09-28
378 SEVERE STORMS & FLOODING DR Flood 1973-05-02

Storm Events in Kansas

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

Storm Type Events Fatalities Injuries Property Damage
Hail 8,265 0 9 $24.2M
Thunderstorm Wind 7,987 3 34 $30.6M
High Wind 1,553 1 7 $10.2M
Drought 1,272 0 0 $0
Flash Flood 1,037 6 9 $35.9M

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

NFIP Flood Insurance Claims

Total Claims

1

Total Paid

$15.0K

Avg Per Claim

$15.0K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 15.3/100

Expected Annual Loss

Very Low

$7.2M/year

Social Vulnerability

Relatively Low

Community Resilience

Very High

Hazard Risk Breakdown

Drought Relatively Moderate
Wildfire Relatively Low
Hail Relatively Low
Heat Wave Relatively Low
Tornado Relatively Low
Ice Storm Relatively Low
Landslide Very Low
Strong Wind Relatively Low
Winter Weather Relatively Low
Earthquake Very Low
Lightning Very Low
Cold Wave Very Low
Riverine Flooding Very Low
Hurricane No Rating

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: Drought

Drought is the slowest of the modeled hazards and the least visible: it does its damage to agriculture, water supply and soil over seasons rather than hours, so it rarely produces the kind of single-day damage that drives a disaster declaration. FEMA scores it in event-days per year rather than discrete events for exactly that reason.

Worth noting for Brown County: the model and the federal record do NOT point at the same hazard. Drought 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

Brown County's closest FEMA peer: Dickinson County, IA

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Brown 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 18 FEMA declarations, Brown 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 Brown County?
The most common disaster type in Brown County is Severe Storm, with 12 declarations. Other disaster types include Flood (3), Biological (2), Hurricane (1).
How does Brown County's FEMA declaration record compare with the Kansas average?
FEMA lists 18 declaration records for Brown County. That is 0% above the Kansas county mean of 18.0. Its count is also 13% below 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 Brown County received?
Brown County has received 15 major disaster declarations, representing 83% of all 18 disaster declarations.
How many flood insurance claims has Brown County filed?
Brown County has 1 National Flood Insurance Program (NFIP) claims totaling $15.0K in payments, with an average of $15.0K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Brown County?
No. In Brown County, Drought has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $2.5M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Brown County?
The most active year for disaster declarations in Brown County was 2008, with 3 declarations. The county has FEMA disaster data spanning 1973 to 2022.
What is the FEMA National Risk Index score for Brown County?
According to the FEMA National Risk Index, Brown County, Kansas has an overall risk score of 15.3 out of 100 (Very Low). On social vulnerability the county rates Relatively Low; on community resilience, Very High. The Expected Annual Loss (EAL) score is Very Low, representing $7.2M in annualized losses.
Which natural hazard poses the greatest risk to Brown County?
The top hazard flagged by FEMA's NRI for Brown County as of the latest release is Drought (risk rating: Relatively Moderate). Other significant hazards include Wildfire (Relatively Low) and Hail (Relatively Low). FEMA's modeled event frequency puts drought here at 15 modeled event-days per year, drawn from 448 historical events on record. 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 Brown County · vintage 2026-08-25 · Methodology · Kansas profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events