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Missouri · FEMA + NOAA + National Risk Index

Clay County, MO

25 FEMA disaster declarations (1965-2020), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Severe Storm.

25
FEMA declarations
18
Major disasters
90
NRI risk · Relatively Moderate
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Clay County. Its 25 FEMA declarations are 1% above the Missouri county mean and exceed the count for 71% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 10%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 10%
of U.S. counties for FEMA National Risk Index score
Relatively Moderate
FEMA National Risk Index rating
25
FEMA declarations vs 21 national county avg
799
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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How does Clay County compare?

Clay County vs. all counties in this dataset

FEMA disaster declarations, all-time

25 Top 29% higher than 71% 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 · 2026-08-03

Clay County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Missouri county average

0/100100/100Missouri avg51/10089.8/100
FEMA National Risk Index composite score vs. the Missouri county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Clay County is led by Riverine Flooding (about $43.3M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Cold Wave carries the highest National Risk Index rating (Relatively High). 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 Clay County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 799 claims and $11.0M in payments. PlainHazard labels 500 or more claims a heavy registry record; that is a reporting bucket, not an official FEMA risk grade. The average paid claim was $13.7K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.

The declaration register points in the busier direction. Clay County's 25 federal records stand 1% above the Missouri county mean of 24.6. 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 89.8/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $112.6M in annualized losses). Social vulnerability reads Very Low and community resilience Very High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Cold Wave stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 2.5 times per year here, based on 48 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 25 entries for Clay County, including 18 Major Disaster records, 1% above the Missouri county mean. Across the 55-year span, that works out to 0.5 declarations a year. Severe Storm leads the file with 9 entries. Declaration type records the federal action taken, not every assistance program approved.

67 /100

Historical Activity Index

High historical activity

Clay County, MO · 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
18/30

25 OpenFEMA declarations, full ingest window (1.2x national county average)

County Disaster Density High
13/25

25 declarations (1.0x state county average of 25)

Major Disaster Share High
18/25

18 of 25 declarations are major disasters (72%)

Hazard Diversity Very High
18/20

7 different disaster types declared in Clay County

Historical Declaration Activity

Activity Band

High

vs. Missouri Avg

+1%

State avg: 24.6

vs. National Avg

+21%

National avg: 20.7

Avg Per Year

0.5

Over 55 years

FEMA NRI 8-hazard radar - Clay County

Clay County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 48, Hurricane 0, Tornado 70, Wildfire 25, Drought 25, Heat Wave 70, Winter Storm 70. The simple mean of these eight displayed scores is 42 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 42 8-hazard mean
Clay County NRI risk profile FIPS 29047 · displayed-hazard mean 42/100
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

25

High volume

Major Disaster share

72%

Major-heavy

NRI risk score

90

Relatively Moderate

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

How often does each hazard strike Clay 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
Cold Wave Relatively High an average of 2.5 times per year
Hail Relatively High an average of 8.5 times per year
Heat Wave Relatively High 15 modeled event-days per year
Tornado Relatively High roughly once every 4 years
Riverine Flooding Relatively Moderate an average of 3 times per year
Ice Storm Relatively Moderate roughly once every 1 years
Winter Weather Relatively Moderate an average of 11 times per year
Landslide Relatively Low roughly once every 5 years
Lightning Relatively Moderate an average of 49 times per year
Wildfire Relatively Low roughly once every 1,223 years
Earthquake Relatively Low roughly once every 974 years
Strong Wind Relatively Moderate an average of 6.4 times per year
Drought Relatively Low 13 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 9
Flood 8
Severe Ice Storm 3
Biological 2
Hurricane 1
Tornado 1
Drought 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Clay County's record, 36% 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 - 18 72.0%

of all 25 declarations

Emergency - 7 28.0%

of all 25 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2019 1
2015 1
2011 2
2009 1
2008 1
2007 1
2005 1
2004 1
2003 1
2002 1
1999 1
1994 1
1993 1
1990 1
Show 6 earlier declaration years
1982 1
1977 2
1976 1
1974 2
1973 1
1965 1

Disaster Declarations

How the 25 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 25 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4490 COVID-19 PANDEMIC DR Biological 2020-03-26
3482 COVID-19 EM Biological 2020-03-13
4451 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2019-07-09
4238 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-08-07
3325 FLOODING EM Flood 2011-06-30
3317 SEVERE WINTER STORM EM Severe Storm 2011-02-03
3303 SEVERE WINTER STORM EM Severe Ice Storm 2009-01-30
3281 SEVERE WINTER STORMS EM Severe Ice Storm 2007-12-12
1708 SEVERE STORMS AND FLOODING DR Severe Storm 2007-06-11
3232 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1524 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2004-06-11
1463 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2003-05-06
1403 SEVERE WINTER ICE STORM DR Severe Ice Storm 2002-02-06
1253 SEVERE STORMS, FLOODING AND TORNADOES DR Severe Storm 1998-10-14
1023 SEVERE STORMS, TORNADOES, FLOODING DR Severe Storm 1994-04-21
995 SEVERE STORMS & FLOODING DR Flood 1993-07-09
867 SEVERE STORMS & FLOODING DR Flood 1990-05-24
667 SEVERE STORMS & FLOODING DR Flood 1982-08-26
538 SEVERE STORMS & FLOODING DR Flood 1977-09-14
535 TORNADOES & FLOODING DR Tornado 1977-05-07
Show 5 earlier declaration records
DR# Title Type Incident Date
3017 DROUGHT EM Drought 1976-09-24
439 SEVERE STORMS & FLOODING DR Flood 1974-06-10
407 SEVERE STORMS & FLOODING DR Flood 1973-11-01
372 HEAVY RAINS, TORNADOES & FLOODING DR Severe Storm 1973-04-19
203 SEVERE STORMS & FLOODING DR Flood 1965-07-27

Storm Events in Missouri

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 6,391 30 52 $63.4M
Hail 4,411 0 1 $86.1M
Flash Flood 2,399 47 14 $406.6M
Flood 1,810 25 7 $304.6M
Drought 1,033 0 350 $53.6M

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

NFIP Flood Insurance Claims

Total Claims

799

Total Paid

$11.0M

Avg Per Claim

$13.7K

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

FEMA National Risk Index

Overall Risk

Relatively Moderate

Score: 89.8/100

Expected Annual Loss

Relatively Moderate

$112.6M/year

Social Vulnerability

Very Low

Community Resilience

Very High

Hazard Risk Breakdown

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

Cold Wave measures exposure to extreme cold rather than to snow. Its harm is concentrated in health effects, burst infrastructure and energy demand spikes, and it falls hardest where the building stock and the grid were not built with sustained cold in mind.

Worth noting for Clay County: the model and the federal record do NOT point at the same hazard. Cold Wave carries the highest modeled rating (Relatively High), 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

Clay County's closest FEMA peer: Clarke County, MS

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

Further reading for this county

Understanding disaster data

Clay County's NFIP claims file (799 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 Clay County?
The most common disaster type in Clay County is Severe Storm, with 9 declarations. Other disaster types include Flood (8), Severe Ice Storm (3), Biological (2).
How does Clay County's FEMA declaration record compare with the Missouri average?
FEMA lists 25 declaration records for Clay County. That is 1% above the Missouri county mean of 24.6. Its count is also 21% 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 Clay County received?
Clay County has received 18 major disaster declarations, representing 72% of all 25 disaster declarations.
How many flood insurance claims has Clay County filed?
Clay County has 799 National Flood Insurance Program (NFIP) claims totaling $11.0M in payments, with an average of $13.7K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Clay County?
No. In Clay County, Cold Wave has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $43.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Clay County?
The most active year for disaster declarations in Clay County was 1974, with 2 declarations. The county has FEMA disaster data spanning 1965 to 2020.
What is the FEMA National Risk Index score for Clay County?
According to the FEMA National Risk Index, Clay County, Missouri has an overall risk score of 89.8 out of 100 (Relatively Moderate). The county's social vulnerability rating is Very Low and community resilience is Very High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $112.6M in annualized losses.
Which natural hazard poses the greatest risk to Clay County?
Based on FEMA NRI data, the highest-risk natural hazard in Clay County is Cold Wave (risk rating: Relatively High). Other significant hazards include Hail (Relatively High) and Heat Wave (Relatively High). FEMA's modeled event frequency puts cold wave here at an average of 2.5 times per year, drawn from 48 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.

What this means for Clay County

Clay County, MO has 25 federal declaration records, 1% more than the Missouri county mean of 25; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 18 of 25 records; the category describes past federal action, not the next likely hazard. Missouri overview
  • The state benchmark and national rank point the same way: this count tops the Missouri mean and the totals for 71% of 3,266 U.S. counties. Most-disaster rankings
  • The large NFIP claims file and FEMA declaration history measure different federal records; the guide explains where they overlap and where they do not. Disaster-data guide

An above-average declaration count records past federal responses; it does not predict the next event. Current warnings come from the National Weather Service and local emergency officials.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.