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Nebraska · FEMA + NOAA + National Risk Index

Cass County, NE

27 FEMA disaster declarations (1967-2025), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

27
FEMA declarations
23
Major disasters
31
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Cass County. Its 27 FEMA declarations are 61% above the Nebraska county mean and exceed the count for 78% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 31%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 31%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
27
FEMA declarations vs 21 national county avg
410
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Fire Management Assistance (FM) records, which are not presidential disaster declarations, alongside Major Disaster (DR) and Emergency (EM) records.

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FEMA OpenFEMA declaration desk

County FIPS 31025 · Cass County 27 declarations · rank 687/3,266

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

  • DECL-HEAVY 27
  • MAJOR-HEAVY 85%
  • RANK-MID #687
  • PHOTO-FINISH Greene
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-HIGH +61%

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

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

Cass County among high-volume declaration counties

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

declarations

What this shows Cass County carries 27 FEMA declaration records, ranked 687 of 3,266 counties in this registry.

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

Where Cass County ranks in the national declaration registry

Cass County vs. high-volume counties in this registry

FEMA disaster declarations, all-time · Cass County

27 Top 22% higher than 78% 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

Cass County's FEMA Risk Index score

0/100100/100Nebraska avg26/10031/100
FEMA National Risk Index composite score vs. the Nebraska county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Cass County is led by Riverine Flooding (about $6.6M Expected Annual Loss, Historical Loss Ratio Relatively Low), while Hail 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 Cass County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 410 paid claims, totaling $8.6M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $21.0K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

The declaration register points in the busier direction. Cass County's 27 federal records stand 61% above the Nebraska county mean of 16.8. 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

FEMA's data shows an elevated National Risk Index composite of 31.0/100 for this county (Very Low rating). Expected Annual Loss comes in at Relatively Low (roughly $15.4M in annualized losses). Social vulnerability (Very Low) and community resilience (Relatively High) both factor into how that raw exposure plays out on the ground. Among the 18 modeled hazards, Hail carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 7.2 times per year here, based on 273 historical events on record.

79 /100

Historical Activity Index

Very High historical activity

Cass County, NE · 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
20/30

27 OpenFEMA declarations, full ingest window (1.3x national county average)

County Disaster Density Very High
20/25

27 declarations (1.6x state county average of 17)

Major Disaster Share Very High
21/25

23 of 27 declarations are major disasters (85%)

Hazard Diversity Very High
18/20

7 different disaster types declared in Cass County

FEMA NRI 8-hazard radar - Cass County

Cass County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 0, Tornado 25, Wildfire 25, Drought 48, Heat Wave 25, Winter Storm 48. The simple mean of these eight displayed scores is 26 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 26 8-hazard mean
Cass County NRI risk profile FIPS 31025 · displayed-hazard mean 26/100
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

27

High volume

Major Disaster share

85%

Mostly major

NRI risk score

31

Very Low

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

How often does each hazard strike Cass 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
Hail Relatively Moderate an average of 7.2 times per year
Wildfire Relatively Low roughly once every 939 years
Landslide Relatively Low roughly once every 8 years
Drought Relatively Moderate 13 modeled event-days per year
Ice Storm Relatively Moderate roughly once every 1 years
Tornado Relatively Low roughly once every 2 years
Heat Wave Relatively Low 8.4 modeled event-days per year
Strong Wind Relatively Low an average of 4.3 times per year
Cold Wave Relatively Low an average of 4.2 times per year
Riverine Flooding Relatively Low an average of 1.8 times per year
Winter Weather Relatively Low an average of 13 times per year
Lightning Very Low an average of 47 times per year
Earthquake Very Low roughly once every 1,527 years

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

Disaster Types

Severe Storm 13
Flood 8
Biological 2
Winter Storm 1
Fire 1
Hurricane 1
Tornado 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Cass County's record, 48% 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 - 23 85.2%

of all 27 declarations

Emergency - 3 11.1%

of all 27 declarations

Fire Management - 1 3.7%

of all 27 declarations

FEMA Declarations Timeline

Year Declarations
2025 2
2023 1
2022 1
2021 1
2020 2
2019 1
2017 1
2015 1
2014 1
2011 3
2010 3
2008 1
2007 1
2005 1
2004 1
Show 6 earlier declaration years
1998 1
1993 1
1984 1
1978 1
1974 1
1967 1

Disaster Declarations

How the 27 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 27 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4868 SEVERE WINTER STORM AND STRAIGHT-LINE WINDS DR Winter Storm 2025-05-21
4838 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING DR Severe Storm 2024-10-21
5462 WACONDA-BEAVER LAKE FIRE COMPLEX FM Fire 2023-04-09
4641 SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOES DR Severe Storm 2022-02-23
4616 SEVERE STORMS AND STRAIGHT-LINE WINDS DR Severe Storm 2021-09-06
4521 COVID-19 PANDEMIC DR Biological 2020-04-04
3483 COVID-19 EM Biological 2020-03-13
4420 SEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODING DR Flood 2019-03-21
4325 SEVERE STORMS, TORNADOES, AND STRAIGHT-LINE WINDS DR Severe Storm 2017-08-01
4225 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-06-25
4185 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2014-07-28
4013 FLOODING DR Flood 2011-08-12
3323 FLOODING EM Flood 2011-06-18
1945 SEVERE STORMS, FLOODING, TORNADO, AND STRAIGHT-LIN DR Severe Storm 2010-10-21
1924 SEVERE STORMS AND FLOODING DR Severe Storm 2010-07-15
1902 SEVERE STORMS, ICE JAMS, AND FLOODING DR Flood 2010-04-21
1878 SEVERE WINTER STORMS AND SNOWSTORM DR Severe Storm 2010-02-25
1770 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-06-20
1706 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2007-06-06
3245 HURRICANE KATRINA EVACUEES EM Hurricane 2005-09-13
Show 7 earlier declaration records
DR# Title Type Incident Date
1517 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 2004-05-25
1190 SEVERE SNOW STORMS, RAIN, AND STRONG WINDS DR Severe Storm 1997-11-01
998 SEVERE STORMS AND FLOODING DR Flood 1993-07-19
716 TORNADOES & FLOODING DR Tornado 1984-07-03
552 STORMS, ICE JAMS, SNOWMELT & FLOODING DR Flood 1978-03-24
406 SEVERE STORMS & FLOODING DR Flood 1973-10-20
228 SEVERE STORMS & FLOODING DR Flood 1967-07-18

Storm Events in Nebraska

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

Storm Type Events Fatalities Injuries Property Damage
Hail 6,079 0 2 $237.7M
Thunderstorm Wind 4,757 3 19 $228.1M
Drought 1,658 0 0 $0
High Wind 1,647 1 1 $22.1M
Winter Storm 1,155 0 2 $335.0K

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

NFIP Flood Insurance Claims

Total Claims

410

Total Paid

$8.6M

Avg Per Claim

$21.0K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 31.0/100

Expected Annual Loss

Relatively Low

$15.4M/year

Social Vulnerability

Very Low

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Hail is among the most expensive hazards in the model relative to how little it threatens life. It concentrates on roofs, vehicles and crops, and a single severe storm can generate an insurance loss across a metropolitan area without a single injury.

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

Cass County's closest FEMA peer: Whatcom County, WA

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Cass 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

Cass County's NFIP claims file (410 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 Cass County?
The most common disaster type in Cass County is Severe Storm, with 13 declarations. Other disaster types include Flood (8), Biological (2), Winter Storm (1).
How does Cass County's FEMA declaration record compare with the Nebraska average?
FEMA lists 27 declaration records for Cass County. That is 61% above the Nebraska county mean of 16.8. Its count is also 30% 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 Cass County received?
Cass County has received 23 major disaster declarations, representing 85% of all 27 disaster declarations.
How many flood insurance claims has Cass County filed?
Cass County has 410 National Flood Insurance Program (NFIP) claims totaling $8.6M in payments, with an average of $21.0K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Cass County?
No. In Cass County, Hail has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $6.6M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Cass County?
The most active year for disaster declarations in Cass County was 2010, with 3 declarations. The county has FEMA disaster data spanning 1967 to 2025.
What is the FEMA National Risk Index score for Cass County?
According to the FEMA National Risk Index, Cass County, Nebraska has an overall risk score of 31.0 out of 100 (Very Low). The county's social vulnerability rating is Very Low and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Relatively Low, representing $15.4M in annualized losses.
Which natural hazard poses the greatest risk to Cass County?
The top hazard flagged by FEMA's NRI for Cass County as of the latest release is Hail (risk rating: Relatively Moderate). Other significant hazards include Wildfire (Relatively Low) and Landslide (Relatively Low). FEMA's modeled event frequency puts hail here at an average of 7.2 times per year, drawn from 273 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.

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