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North Dakota · FEMA + NOAA + National Risk Index

Cavalier County, ND

26 FEMA disaster declarations (1969-2022), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

26
FEMA declarations
24
Major disasters
12
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Cavalier County. Its 26 FEMA declarations are 0% above the North Dakota county mean and exceed the count for 75% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 12%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 12%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
26
FEMA declarations vs 21 national county avg
13
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 38019 · Cavalier County 26 declarations · rank 727/3,266

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

  • DECL-HEAVY 26
  • MAJOR-HEAVY 92%
  • RANK-MID #727
  • PHOTO-FINISH Hunterdon
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-ABOVE +0%

Nearest declaration peer: Hunterdon, NJ (0 declaration gap)

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

Cavalier County among high-volume declaration counties

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

declarations

What this shows Cavalier County carries 26 FEMA declaration records, ranked 727 of 3,266 counties in this registry.

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

Where Cavalier County ranks in the national declaration registry

Cavalier County vs. high-volume counties in this registry

FEMA disaster declarations, all-time · Cavalier County

26 Top 25% higher than 75% 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

Cavalier County's FEMA Risk Index score

0/100100/100North Dakota avg22/10011.8/100
FEMA National Risk Index composite score vs. the North Dakota county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Cavalier County is led by Cold Wave (about $2.0M Expected Annual Loss, Historical Loss Ratio Very High), while Winter Weather 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 Cavalier 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 11.8/100 (Very Low). Expected Annual Loss is rated Very Low (roughly $4.5M in annualized losses). Two modifiers shape how that exposure becomes real-world harm here: social vulnerability (Relatively Moderate) and community resilience (Relatively Low). Among the 18 modeled hazards, Winter Weather carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 21 times per year here, based on 395 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 13 claims and $255.8K 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. Cavalier County's 26 federal records stand 0% above the North Dakota county mean of 25.9. 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.

68 /100

Historical Activity Index

High historical activity

Cavalier County, ND · 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
19/30

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

County Disaster Density High
13/25

26 declarations (1.0x state county average of 26)

Major Disaster Share Very High
23/25

24 of 26 declarations are major disasters (92%)

Hazard Diversity High
13/20

5 different disaster types declared in Cavalier County

FEMA NRI 8-hazard radar - Cavalier County

Cavalier County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 0, Tornado 8, Wildfire 8, Drought 25, Heat Wave 8, Winter Storm 48. The simple mean of these eight displayed scores is 14 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 14 8-hazard mean
Cavalier County NRI risk profile FIPS 38019 · displayed-hazard mean 14/100
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

26

High volume

Major Disaster share

92%

Mostly major

NRI risk score

12

Very Low

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

How often does each hazard strike Cavalier 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
Winter Weather Relatively Moderate an average of 21 times per year
Ice Storm Relatively Moderate roughly once every 2 years
Hail Relatively Low an average of 2.2 times per year
Cold Wave Relatively Moderate an average of 24 times per year
Wildfire Very Low roughly once every 770 years
Strong Wind Relatively Low an average of 1 time per year
Landslide Very Low roughly once every 7 years
Drought Relatively Low 9.7 modeled event-days per year
Tornado Very Low roughly once every 2 years
Lightning Very Low an average of 26 times per year
Riverine Flooding Very Low roughly once every 1 years
Heat Wave Very Low 0.6 modeled event-days per year
Earthquake Very Low roughly once every 12,821 years

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

Disaster Types

Severe Storm 11
Flood 11
Biological 2
Coastal Storm 1
Tornado 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Cavalier County's record, 42% 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 - 24 92.3%

of all 26 declarations

Emergency - 2 7.7%

of all 26 declarations

FEMA Declarations Timeline

Year Declarations
2022 1
2020 2
2017 1
2013 2
2011 1
2009 1
2007 1
2006 1
2005 2
2004 1
2001 2
2000 1
1999 1
1997 2
1996 1
Show 6 earlier declaration years
1995 1
1993 1
1979 1
1974 1
1970 1
1969 1

Disaster Declarations

How the 26 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 26 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4660 SEVERE WINTER STORM AND FLOODING DR Severe Storm 2022-07-13
4509 COVID-19 PANDEMIC DR Biological 2020-04-01
3477 COVID-19 EM Biological 2020-03-13
4323 FLOODING DR Flood 2017-07-12
4128 SEVERE STORMS AND FLOODING DR Severe Storm 2013-07-12
4118 FLOODING DR Flood 2013-05-29
1981 FLOODING DR Flood 2011-05-10
1829 SEVERE STORMS AND FLOODING DR Severe Storm 2009-03-24
1713 SEVERE STORMS AND FLOODING DR Severe Storm 2007-07-17
1645 SEVERE STORMS, FLOODING, AND GROUND SATURATION DR Severe Storm 2006-06-05
3247 HURRICANE KATRINA EVACUATION EM Coastal Storm 2005-09-13
1597 SEVERE STORMS, FLOODING, AND GROUND SATURATION DR Severe Storm 2005-07-22
1515 SEVERE STORMS, FLOODING, AND GROUND SATURATION DR Severe Storm 2004-05-05
1376 SEVERE STORMS, FLOODING, & GROUND SATURATION DR Flood 2001-05-28
1353 SEVERE WINTER STORMS AND TORNADOES DR Tornado 2000-12-29
1334 SEVERE STORMS, FLOODING AND GROUND SATURATION DR Severe Storm 2000-06-27
1279 SEVERE STORMS, FLOODING, SNOW, ICE, GROUND SATURATION, LANSLIDES, MUDSLIDES, AND TOR DR Flood 1999-06-08
1174 SEVERE FLOODING,SEVERE WINTER STORMS, SNOWMELT, SPRING RAINS DR Flood 1997-04-07
1157 SEVERE WINTER STORMS AND BLIZZARD CONDITIONS DR Severe Storm 1997-01-12
1118 SEVERE STORMS,FLOODING, & ICE JAMS DR Severe Storm 1996-06-05
Show 6 earlier declaration records
DR# Title Type Incident Date
1050 SEVERE STORMS, FLOODING, AND GROUND SATURATION DR Severe Storm 1995-05-16
1001 SEVERE STORMS & FLOODING DR Flood 1993-07-26
581 SEVERE STORMS, SNOWMELT & FLOODING DR Flood 1979-04-26
434 HEAVY RAINS, SNOWMELT & FLOODING DR Flood 1974-05-14
287 SEVERE STORMS & FLOODING DR Flood 1970-06-05
256 FLOODING DR Flood 1969-04-18

Storm Events in North Dakota

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

Storm Type Events Fatalities Injuries Property Damage
Hail 2,705 0 2 $116.1M
Thunderstorm Wind 2,459 2 10 $67.0M
High Wind 1,184 1 1 $2.9M
Heavy Snow 925 0 3 $650.0K
Blizzard 905 2 2 $60.0M

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

NFIP Flood Insurance Claims

Total Claims

13

Total Paid

$255.8K

Avg Per Claim

$19.7K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 11.8/100

Expected Annual Loss

Very Low

$4.5M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively Low

Hazard Risk Breakdown

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

Winter Weather in the model means the accumulation of snow and cold that disrupts rather than destroys: road closures, roof loads, burst pipes and lost heating. Its costs land heavily on transport and on households least able to absorb an interruption.

Worth noting for Cavalier County: the model and the federal record do NOT point at the same hazard. Winter Weather 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

Cavalier County's closest FEMA peer: Roseau County, MN

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Cavalier 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 26 FEMA declarations, Cavalier 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 Cavalier County?
The most common disaster type in Cavalier County is Severe Storm, with 11 declarations. Other disaster types include Flood (11), Biological (2), Coastal Storm (1).
How does Cavalier County's FEMA declaration record compare with the North Dakota average?
FEMA lists 26 declaration records for Cavalier County. That is 0% above the North Dakota county mean of 25.9. Its count is also 25% 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 Cavalier County received?
Cavalier County has received 24 major disaster declarations, representing 92% of all 26 disaster declarations.
How many flood insurance claims has Cavalier County filed?
Cavalier County has 13 National Flood Insurance Program (NFIP) claims totaling $255.8K in payments, with an average of $19.7K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Cavalier County?
No. In Cavalier County, Winter Weather has the highest National Risk Index rating (Relatively Moderate), while Cold Wave leads Expected Annual Loss at about $2.0M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Cavalier County?
The most active year for disaster declarations in Cavalier County was 1997, with 2 declarations. The county has FEMA disaster data spanning 1969 to 2022.
What is the FEMA National Risk Index score for Cavalier County?
According to the FEMA National Risk Index, Cavalier County, North Dakota has an overall risk score of 11.8 out of 100 (Very Low). Social vulnerability here rates Relatively Moderate, while community resilience comes in at Relatively Low. The Expected Annual Loss (EAL) score is Very Low, representing $4.5M in annualized losses.
Which natural hazard poses the greatest risk to Cavalier County?
Based on FEMA NRI data, the highest-risk natural hazard in Cavalier County is Winter Weather (risk rating: Relatively Moderate). Other significant hazards include Ice Storm (Relatively Moderate) and Hail (Relatively Low). FEMA's modeled event frequency puts winter weather here at an average of 21 times per year, drawn from 395 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.

FEMA OpenFEMA declarations + NRI for Cavalier County · vintage 2026-08-25 · Methodology · North Dakota profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events