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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.

Mississippi · FEMA + NOAA + National Risk Index

DeSoto County, MS

16 FEMA disaster declarations (1973-2026), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Severe Storm.

16
FEMA declarations
10
Major disasters
89
NRI risk · Relatively Moderate
Severe Storm
Top hazard

The verdict

DeSoto County has a nationally busy FEMA history: 16 declarations, more than 27% of counties in this registry. But the state comparison tempers that reading: the total is 38% below the Mississippi county mean. FEMA's separate National Risk Index places the county in the riskiest 11%; that score models loss and vulnerability rather than counting declarations.

Riskiest 11%
of U.S. counties for FEMA National Risk Index score
Relatively Moderate
FEMA National Risk Index rating
16
FEMA declarations vs 21 national county avg
280
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 28033 · DeSoto County 16 declarations · rank 2294/3,266

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

  • DECL-MID 16
  • MAJOR-MID 63%
  • RANK-LOWER #2,294
  • PHOTO-FINISH Greene
  • NRI-MID 89
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-BELOW -38%

Nearest declaration peer: Greene, GA (0 declaration gap)

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

DeSoto County among counties with fewer federal records

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

declarations

What this shows DeSoto County carries 16 FEMA declaration records, ranked 2294 of 3,266 counties in this registry.

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

DeSoto County versus quieter counties in this dataset

DeSoto County among lower-declaration counties nationally

FEMA disaster declarations, all-time · DeSoto County

16 27th percentile higher than 27% 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

DeSoto County's FEMA Risk Index score

0/100100/100Mississippi avg51/10089/100
FEMA National Risk Index composite score vs. the Mississippi county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for DeSoto County is led by Earthquake (about $23.7M Expected Annual Loss, Historical Loss Ratio Relatively High), while Tornado 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 DeSoto County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 280 paid claims, totaling $6.7M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $23.8K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

Start with the state benchmark: a Mississippi county averages 25.9 federal declaration records, while DeSoto County has 16. The gap is 38% 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.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 89.0/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $85.9M in annualized losses). Social vulnerability reads Relatively Low and community resilience Relatively Moderate, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Tornado stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at roughly once every 3 years here, based on 25 historical events on record.

51 /100

Historical Activity Index

High historical activity

DeSoto County, MS · 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
12/30

16 OpenFEMA declarations, full ingest window (0.8x national county average)

County Disaster Density Moderate
8/25

16 declarations (0.6x state county average of 26)

Major Disaster Share High
16/25

10 of 16 declarations are major disasters (63%)

Hazard Diversity Very High
15/20

6 different disaster types declared in DeSoto County

FEMA NRI 8-hazard radar - DeSoto County

DeSoto County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 48, Flood 48, Hurricane 8, Tornado 70, Wildfire 25, Drought 25, Heat Wave 48, Winter Storm 70. The simple mean of these eight displayed scores is 43 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 43 8-hazard mean
DeSoto County NRI risk profile FIPS 28033 · displayed-hazard mean 43/100
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

16

Below median

Major Disaster share

63%

Major-heavy

NRI risk score

89

Relatively Moderate

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

How often does each hazard strike DeSoto 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
Tornado Relatively High roughly once every 3 years
Earthquake Relatively Moderate roughly once every 146 years
Heat Wave Relatively Moderate 22 modeled event-days per year
Cold Wave Relatively High an average of 1.5 times per year
Lightning Relatively High an average of 62 times per year
Riverine Flooding Relatively Moderate an average of 2.3 times per year
Landslide Relatively Low roughly once every 2 years
Strong Wind Relatively Moderate an average of 1.3 times per year
Ice Storm Relatively Moderate an average of 1 time per year
Wildfire Relatively Low roughly once every 739 years
Hail Relatively Low an average of 2.9 times per year
Hurricane Very Low roughly once every 37 years
Drought Relatively Low 12 modeled event-days per year
Winter Weather Relatively Low an average of 4.8 times 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 5
Hurricane 4
Winter Storm 2
Biological 2
Flood 2
Snowstorm 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on DeSoto County's record, 31% 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 - 10 62.5%

of all 16 declarations

Emergency - 6 37.5%

of all 16 declarations

FEMA Declarations Timeline

Year Declarations
2026 2
2022 1
2021 1
2020 3
2011 3
2008 1
2005 1
2002 1
1994 1
1977 1
1973 1

Disaster Declarations

How the 16 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 16 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4899 SEVERE WINTER STORM DR Winter Storm 2026-02-06
3640 SEVERE WINTER STORM EM Winter Storm 2026-01-24
4626 HURRICANE IDA DR Hurricane 2021-10-22
3569 HURRICANE IDA EM Hurricane 2021-08-28
4528 COVID-19 PANDEMIC DR Biological 2020-04-05
3474 COVID-19 EM Biological 2020-03-13
4478 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2020-03-12
1983 FLOODING DR Flood 2011-05-11
3320 FLOODING EM Flood 2011-05-04
1972 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND ASSOCIATED FLOODING DR Severe Storm 2011-04-29
3291 HURRICANE GUSTAV EM Hurricane 2008-08-30
1604 HURRICANE KATRINA DR Hurricane 2005-08-29
1398 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 2001-12-07
1009 SEVERE WINTER STORM, FREEEZING RAIN AND SLEET DR Severe Storm 1994-02-18
3032 DROUGHT & FREEZING EM Snowstorm 1977-02-22
368 HEAVY RAINS, TORNADOES & FLOODING DR Severe Storm 1973-03-27

Storm Events in Mississippi

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 5,557 17 60 $93.9M
Flash Flood 1,551 6 9 $83.6M
Hail 1,411 0 0 $90.1M
Heat 1,340 3 0 $0
Tornado 1,097 68 610 $562.0M

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

NFIP Flood Insurance Claims

Total Claims

280

Total Paid

$6.7M

Avg Per Claim

$23.8K

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

FEMA National Risk Index

Overall Risk

Relatively Moderate

Score: 89.0/100

Expected Annual Loss

Relatively Moderate

$85.9M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively Moderate

Hazard Risk Breakdown

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

Tornado exposure is the most spatially concentrated in the model: total destruction along a narrow corridor with intact property either side. County-level averages therefore understate severity badly for anyone actually in the path, and overstate it for everyone else.

For DeSoto County the two measures on this page point the same way: Tornado is the county's highest-rated modeled hazard (Relatively High), 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

DeSoto County's closest FEMA peer: Santa Rosa County, FL

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for DeSoto 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

Understanding disaster data

DeSoto County's NFIP claims file (280 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 DeSoto County?
The most common disaster type in DeSoto County is Severe Storm, with 5 declarations. Other disaster types include Hurricane (4), Winter Storm (2), Biological (2).
How does DeSoto County's FEMA declaration record compare with the Mississippi average?
The typical Mississippi county has 25.9 FEMA declaration records; DeSoto County has 16, or 38% fewer. Against the national county mean of 20.7, this county's total is 23% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has DeSoto County received?
DeSoto County has received 10 major disaster declarations, representing 63% of all 16 disaster declarations.
How many flood insurance claims has DeSoto County filed?
DeSoto County has 280 National Flood Insurance Program (NFIP) claims totaling $6.7M in payments, with an average of $23.8K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in DeSoto County?
No. In DeSoto County, Tornado has the highest National Risk Index rating (Relatively High), while Earthquake leads Expected Annual Loss at about $23.7M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in DeSoto County?
The most active year for disaster declarations in DeSoto County was 2011, with 3 declarations. The county has FEMA disaster data spanning 1973 to 2026.
What is the FEMA National Risk Index score for DeSoto County?
According to the FEMA National Risk Index, DeSoto County, Mississippi has an overall risk score of 89.0 out of 100 (Relatively Moderate). The county's social vulnerability rating is Relatively Low and community resilience is Relatively Moderate. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $85.9M in annualized losses.
Which natural hazard poses the greatest risk to DeSoto County?
The top hazard flagged by FEMA's NRI for DeSoto County is Tornado (risk rating: Relatively High). Other significant hazards include Earthquake (Relatively Moderate) and Heat Wave (Relatively Moderate). FEMA's modeled event frequency puts tornado here at roughly once every 3 years, drawn from 25 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 DeSoto County · vintage 2026-08-25 · Methodology · Mississippi profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events