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The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

Missouri · FEMA + NOAA + National Risk Index

Worth County, MO

20 FEMA disaster declarations (1973-2023), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

20
FEMA declarations
14
Major disasters
8
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Worth County has a nationally busy FEMA history: 20 declarations, more than 46% of counties in this registry. But the state comparison tempers that reading: the total is 19% below the Missouri county mean. FEMA's separate National Risk Index places the county safer than 8%; that score models loss and vulnerability rather than counting declarations.

Safer than 8%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
20
FEMA declarations vs 21 national county avg
10
severe storm declarations, the most common hazard here

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 29227 · Worth County 20 declarations · rank 1654/3,266

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

  • DECL-HEAVY 20
  • MAJOR-MID 70%
  • RANK-LOWER #1,654
  • PHOTO-FINISH Monona
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-BELOW -19%

Nearest declaration peer: Monona, IA (0 declaration gap)

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

Worth County in the declaration-count neighbourhood

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

declarations

What this shows Worth County carries 20 FEMA declaration records, ranked 1654 of 3,266 counties in this registry.

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

How Worth County's FEMA declaration count compares nationally

Worth County vs. all counties in this dataset

FEMA disaster declarations, all-time · Worth County

20 46th percentile higher than 46% 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

Worth County's FEMA Risk Index score

0/100100/100Missouri avg51/1008.2/100
FEMA National Risk Index composite score vs. the Missouri county average

What does Worth 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 8.2/100 (Very Low). Expected Annual Loss is rated Very Low (roughly $4.1M in annualized losses). Two modifiers shape how that exposure becomes real-world harm here: social vulnerability (Relatively Moderate) and community resilience (Relatively High). Among the 18 modeled hazards, Heat Wave carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at 9.1 modeled event-days per year here, based on 119 historical events on record.

Reading the federal records together

No paid-claim row for this county appears in the NFIP county table used by PlainHazard. That absence is not evidence that flooding never occurred: the register observes claims under federal flood-insurance policies, not uninsured losses, emergency reports, or every flood outside the program. The FEMA declaration history below is therefore the available federal-action record on this page.

Start with the state benchmark: a Missouri county averages 24.6 federal declaration records, while Worth County has 20. The gap is 19% 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.

57 /100

Historical Activity Index

High historical activity

Worth 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) Moderate
14/30

20 OpenFEMA declarations, full ingest window (1.0x national county average)

County Disaster Density Moderate
10/25

20 declarations (0.8x state county average of 25)

Major Disaster Share High
18/25

14 of 20 declarations are major disasters (70%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Worth County

FEMA NRI 8-hazard radar - Worth County

Worth County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 8, Tornado 8, Wildfire 8, Drought 48, Heat Wave 48, Winter Storm 8. The simple mean of these eight displayed scores is 18 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 18 8-hazard mean
Worth County NRI risk profile FIPS 29227 · displayed-hazard mean 18/100
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

20

Above median

Major Disaster share

70%

Major-heavy

NRI risk score

8

Very Low

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

How often does each hazard strike Worth 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
Heat Wave Relatively Moderate 9.1 modeled event-days per year
Drought Relatively Moderate 18 modeled event-days per year
Landslide Very Low roughly once every 6 years
Wildfire Very Low roughly once every 771 years
Tornado Very Low roughly once every 6 years
Cold Wave Very Low an average of 4.7 times per year
Hail Very Low an average of 5.3 times per year
Ice Storm Very Low roughly once every 2 years
Strong Wind Very Low an average of 3.8 times per year
Winter Weather Very Low an average of 11 times per year
Hurricane Very Low roughly once every 174 years
Earthquake Very Low roughly once every 1,531 years
Lightning Very Low an average of 46 times per year
Riverine Flooding Very Low roughly once every 14 years

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

Disaster Types

Severe Storm 10
Severe Ice Storm 3
Flood 3
Biological 2
Hurricane 1
Drought 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Worth County's record, 50% 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 - 14 70.0%

of all 20 declarations

Emergency - 6 30.0%

of all 20 declarations

FEMA Declarations Timeline

Year Declarations
2023 1
2020 2
2015 2
2011 2
2010 1
2009 1
2008 3
2007 1
2005 1
2004 1
1993 1
1984 1
1976 1
1974 1
1973 1

Disaster Declarations

How the 20 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 20 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4741 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING DR Severe Storm 2023-09-21
4490 COVID-19 PANDEMIC DR Biological 2020-03-26
3482 COVID-19 EM Biological 2020-03-13
4238 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-08-07
4200 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2014-10-31
1961 SEVERE WINTER STORM AND SNOWSTORM DR Severe Storm 2011-03-23
3317 SEVERE WINTER STORM EM Severe Storm 2011-02-03
1934 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2010-08-17
3303 SEVERE WINTER STORM EM Severe Ice Storm 2009-01-30
1773 SEVERE STORMS AND FLOODING DR Severe Storm 2008-06-25
1736 SEVERE WINTER STORMS DR Severe Ice Storm 2007-12-27
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
995 SEVERE STORMS & FLOODING DR Flood 1993-07-09
713 SEVERE STORMS & FLOODING DR Flood 1984-06-21
3017 DROUGHT EM Drought 1976-09-24
407 SEVERE STORMS & FLOODING DR Flood 1973-11-01
372 HEAVY RAINS, TORNADOES & FLOODING DR Severe Storm 1973-04-19

Storm Events in Missouri

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 8.2/100

Expected Annual Loss

Very Low

$4.1M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Heat Wave is measured in event-days per year rather than discrete events, and it is the hazard whose harm is most consistently undercounted: its toll is health and mortality, concentrated among people without cooling, rather than visible damage to property.

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

Worth County's closest FEMA peer: Buena Vista (city), VA

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Worth 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 20 FEMA declarations, Worth 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 Worth County?
The most common disaster type in Worth County is Severe Storm, with 10 declarations. Other disaster types include Severe Ice Storm (3), Flood (3), Biological (2).
How does Worth County's FEMA declaration record compare with the Missouri average?
The typical Missouri county has 24.6 FEMA declaration records; Worth County has 20, or 19% fewer. Against the national county mean of 20.7, this county's total is 3% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Worth County received?
Worth County has received 14 major disaster declarations, representing 70% of all 20 disaster declarations.
What was the worst year for disasters in Worth County?
The most active year for disaster declarations in Worth County was 2008, with 3 declarations. The county has FEMA disaster data spanning 1973 to 2023.
What is the FEMA National Risk Index score for Worth County?
According to the FEMA National Risk Index, Worth County, Missouri has an overall risk score of 8.2 out of 100 (Very Low). On social vulnerability the county rates Relatively Moderate; on community resilience, Relatively High. The Expected Annual Loss (EAL) score is Very Low, representing $4.1M in annualized losses.
Which natural hazard poses the greatest risk to Worth County?
The top hazard flagged by FEMA's NRI for Worth County is Heat Wave (risk rating: Relatively Moderate). Other significant hazards include Drought (Relatively Moderate) and Landslide (Very Low). FEMA's modeled event frequency puts heat wave here at 9.1 modeled event-days per year, drawn from 119 historical events on record. These scores are based on FEMA's analysis of historical event frequency, 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.

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 Worth County · vintage 2026-08-25 · Methodology · Missouri profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events