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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

Dallas County, MO

25 FEMA disaster declarations (1973-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

25
FEMA declarations
18
Major disasters
42
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Dallas 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 safer than 42%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 42%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
25
FEMA declarations vs 21 national county avg
3
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 Dallas County compare?

Dallas 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

Dallas County's FEMA Risk Index score

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

0/100100/100Missouri avg51/10041.7/100
FEMA National Risk Index composite score vs. the Missouri county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Dallas County is led by Riverine Flooding (about $3.6M Expected Annual Loss, Historical Loss Ratio Very High), while Ice Storm carries the highest National Risk Index rating (Very 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 Dallas County's hazard record show?

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 41.7/100 for this county (Very Low rating). Expected Annual Loss comes in at Very Low (roughly $10.4M in annualized losses). Social vulnerability (Relatively High) and community resilience (Very Low) both factor into how that raw exposure plays out on the ground. Of the 18 hazards FEMA models, Ice Storm stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at roughly once every 1 years here, based on 58 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 25 entries for Dallas County, including 18 Major Disaster records, 1% above the Missouri county mean. Across the 47-year span, that works out to 0.5 declarations a year. Severe Storm leads the file with 14 entries. Declaration type records the federal action taken, not every assistance program approved.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 3 claims and $27.9K 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. Dallas 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.

64 /100

Historical Activity Index

High historical activity

Dallas 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
15/20

6 different disaster types declared in Dallas 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 47 years

FEMA NRI 8-hazard radar - Dallas County

Dallas 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 25, Drought 25, Heat Wave 25, Winter Storm 92. The simple mean of these eight displayed scores is 29 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 29 8-hazard mean
Dallas County NRI risk profile FIPS 29059 · displayed-hazard mean 29/100
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

42

Very Low

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

How often does each hazard strike Dallas 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
Ice Storm Very High roughly once every 1 years
Lightning Relatively High an average of 55 times per year
Wildfire Relatively Low roughly once every 317 years
Heat Wave Relatively Low 13 modeled event-days per year
Drought Relatively Low 4.3 modeled event-days per year
Tornado Relatively Low roughly once every 3 years
Earthquake Very Low roughly once every 463 years
Winter Weather Relatively Low an average of 12 times per year
Strong Wind Relatively Moderate an average of 5.1 times per year
Hail Relatively Low an average of 6.5 times per year
Landslide Very Low roughly once every 3 years
Riverine Flooding Relatively Low an average of 3 times per year
Cold Wave Relatively Low an average of 2.4 times per year
Hurricane Very Low roughly once every 144 years

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

Disaster Types

Severe Storm 14
Flood 4
Severe Ice Storm 3
Biological 2
Hurricane 1
Drought 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Dallas County's record, 56% 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 3
2019 1
2017 1
2016 2
2015 1
2013 1
2011 2
2009 2
2008 3
2007 2
2005 1
2003 1
2002 1
1995 1
1993 1
Show 2 earlier declaration years
1976 1
1973 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
4552 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2020-07-09
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
4317 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING DR Flood 2017-06-02
4250 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Flood 2016-01-21
3374 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING EM Flood 2016-01-02
4238 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-08-07
4144 SEVERE STORMS, STRAIGHT-LINE WINDS AND FLOODING DR Severe Storm 2013-09-06
1961 SEVERE WINTER STORM AND SNOWSTORM DR Severe Storm 2011-03-23
3317 SEVERE WINTER STORM EM Severe Storm 2011-02-03
1847 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2009-06-19
3303 SEVERE WINTER STORM EM Severe Ice Storm 2009-01-30
1749 SEVERE STORMS AND FLOODING DR Severe Storm 2008-03-19
1742 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-02-05
3281 SEVERE WINTER STORMS EM Severe Ice Storm 2007-12-12
1728 SEVERE STORMS AND FLOODING DR Severe Storm 2007-09-21
1676 SEVERE WINTER STORMS AND FLOODING DR Severe Ice Storm 2007-01-15
3232 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1463 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2003-05-06
Show 5 earlier declaration records
DR# Title Type Incident Date
1412 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 2002-05-06
1054 SEVERE STORMS, TORNADOES, HAIL, FLOODING DR Severe Storm 1995-06-02
995 SEVERE STORMS & FLOODING DR Flood 1993-07-09
3017 DROUGHT EM Drought 1976-09-24
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 Dallas 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

3

Total Paid

$27.9K

Avg Per Claim

$9.3K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 41.7/100

Expected Annual Loss

Very Low

$10.4M/year

Social Vulnerability

Relatively High

Community Resilience

Very Low

Hazard Risk Breakdown

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

Ice storms load power lines and tree limbs with accumulating freezing rain until they fail. The characteristic cost is infrastructure and multi-day power loss across a wide area rather than structural damage to buildings, which is why their consequences often outlast the weather that caused them.

Worth noting for Dallas County: the model and the federal record do NOT point at the same hazard. Ice Storm carries the highest modeled rating (Very 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

Dallas County's closest FEMA peer: King and Queen County, VA

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

Further reading for this county

Most disaster-prone counties

With 25 FEMA declarations, Dallas 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 Dallas County?
The most common disaster type in Dallas County is Severe Storm, with 14 declarations. Other disaster types include Flood (4), Severe Ice Storm (3), Biological (2).
How does Dallas County's FEMA declaration record compare with the Missouri average?
FEMA lists 25 declaration records for Dallas 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 Dallas County received?
Dallas County has received 18 major disaster declarations, representing 72% of all 25 disaster declarations.
How many flood insurance claims has Dallas County filed?
Dallas County has 3 National Flood Insurance Program (NFIP) claims totaling $27.9K in payments, with an average of $9.3K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Dallas County?
No. In Dallas County, Ice Storm has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $3.6M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Dallas County?
The most active year for disaster declarations in Dallas County was 2008, with 3 declarations. The county has FEMA disaster data spanning 1973 to 2020.
What is the FEMA National Risk Index score for Dallas County?
According to the FEMA National Risk Index, Dallas County, Missouri has an overall risk score of 41.7 out of 100 (Very Low). On social vulnerability the county rates Relatively High; on community resilience, Very Low. The Expected Annual Loss (EAL) score is Very Low, representing $10.4M in annualized losses.
Which natural hazard poses the greatest risk to Dallas County?
Based on FEMA NRI data, the highest-risk natural hazard in Dallas County as of the latest release is Ice Storm (risk rating: Very High). Other significant hazards include Lightning (Relatively High) and Wildfire (Relatively Low). FEMA's modeled event frequency puts ice storm here at roughly once every 1 years, drawn from 58 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.

What this means for Dallas County

Dallas 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
  • A short NFIP claims file cannot establish low flood exposure; the data guide explains the limits of each federal measure. 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.