FEMA Records
10
Low volume
North Dakota · FEMA + NOAA + National Risk Index
Slope County, ND
10 FEMA disaster declarations (1978-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.
- 10
- FEMA declarations
- 7
- Major disasters
- 1
- NRI risk · Very Low
- Severe Storm
- Top hazard
The verdict
Slope County has a nationally busy FEMA history: 10 declarations, more than 10% of counties in this registry. But the state comparison tempers that reading: the total is 61% below the North Dakota county mean. FEMA's separate National Risk Index places the county safer than 1%; that score models loss and vulnerability rather than counting declarations.
- Safer than 1%
- of U.S. counties for FEMA National Risk Index score
- Very Low
- FEMA National Risk Index rating
- 10
- FEMA declarations vs 21 national county avg
- 3
- 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.
How does Slope County compare?
Slope County vs. all counties in this dataset
FEMA disaster declarations, all-time
10 10th percentile higher than 10% of 3,266 counties
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
Slope County's FEMA Risk Index score
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 Slope County is led by Cold Wave (about $597.3K Expected Annual Loss, Historical Loss Ratio Very High), while Wildfire carries the highest National Risk Index rating (Very Low). 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 Slope County's hazard record show?
Declaration frequency
Nationally, Slope County's 10 FEMA records form a high-volume history; within North Dakota, however, the count is 61% below the county mean. 7 entries carry the Major Disaster classification. The largest incident group is Severe Storm, appearing 3 times. The full 42-year record averages 0.2 declarations annually. A DR label alone does not say whether Individual Assistance, Public Assistance, or both followed.
FEMA National Risk Index
This county sits at the very bottom of FEMA's National Risk Index nationally, a composite score of 0.6/100 (rated Very Low). Projected losses are minimal, Expected Annual Loss reads Very Low (roughly $1.1M in annualized losses), and the county's exposure is shaped by a Very Low social-vulnerability profile and Very Low community resilience. Even the county's top-rated hazard, Wildfire, only reaches Very Low on FEMA's scale, none of the 18 modeled hazards stand out here. FEMA's modeled frequency puts that hazard at roughly once every 1,423 years here.
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 North Dakota county averages 25.9 federal declaration records, while Slope County has 10. The gap is 61% 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.
43 /100
Historical Activity Index
Moderate historical activity
Slope 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) Low
7/30
10 OpenFEMA declarations, full ingest window (0.5x national county average)
County Disaster Density Low
5/25
10 declarations (0.4x state county average of 26)
Major Disaster Share High
18/25
7 of 10 declarations are major disasters (70%)
Hazard Diversity High
13/20
5 different disaster types declared in Slope County
Historical Declaration Activity
Activity Band
High
vs. North Dakota Avg
-61%
State avg: 25.9
vs. National Avg
-52%
National avg: 20.7
Avg Per Year
0.2
Over 42 years
FEMA NRI 8-hazard radar - Slope County
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.
Major Disaster share
70%
Major-heavy
NRI risk score
1
Very Low
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Slope 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 |
|---|---|---|
| Wildfire | Very Low | roughly once every 1,423 years |
| Cold Wave | Relatively Low | an average of 11 times per year |
| Drought | Very Low | 29 modeled event-days per year |
| Hail | Very Low | an average of 2.4 times per year |
| Winter Weather | Very Low | an average of 17 times per year |
| Ice Storm | Very Low | roughly once every 2 years |
| Heat Wave | Very Low | 1 modeled event-day per year |
| Landslide | Very Low | roughly once every 3 years |
| Strong Wind | Very Low | an average of 1.5 times per year |
| Tornado | Very Low | roughly once every 6 years |
| Lightning | Very Low | an average of 32 times per year |
| Earthquake | Very Low | roughly once every 9,174 years |
| Riverine Flooding | Very Low | roughly once every 28 years |
Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Severe Storm 3
Biological 2
Snowstorm 2
Flood 2
Coastal Storm 1
What Severe Storm declarations mean here
Severe Storm is the most frequent declaration type on Slope County's record, 30% 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 - 7 70.0%
of all 10 declarations
Emergency - 3 30.0%
of all 10 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2020 | 2 | |
| 2014 | 1 | |
| 2010 | 1 | |
| 2006 | 1 | |
| 2005 | 1 | |
| 1997 | 2 | |
| 1978 | 2 | |
Disaster Declarations
How the 10 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 10 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4509 | COVID-19 PANDEMIC | DR | Biological | 2020-04-01 |
| 3477 | COVID-19 | EM | Biological | 2020-03-13 |
| 4154 | SEVERE WINTER STORM | DR | Severe Storm | 2013-10-31 |
| 1879 | SEVERE WINTER STORM | DR | Severe Storm | 2010-02-26 |
| 1616 | SEVERE WINTER STORM AND RECORD AND/OR NEAR RECORD SNOW | DR | Snowstorm | 2005-11-21 |
| 3247 | HURRICANE KATRINA EVACUATION | EM | Coastal Storm | 2005-09-13 |
| 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 |
| 554 | STORMS, ICE JAMS, SNOWMELT & FLOODING | DR | Flood | 1978-04-17 |
| 3061 | BLIZZARD & SNOWSTORMS | EM | Snowstorm | 1978-02-16 |
Storm Events in North Dakota
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Slope 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
FEMA National Risk Index
Overall Risk
Very Low
Score: 0.6/100
Expected Annual Loss
Very Low
$1.1M/year
Social Vulnerability
Very Low
Community Resilience
Very Low
Hazard Risk Breakdown
Wildfire Very Low
Cold Wave Relatively Low
Drought Very Low
Hail Very Low
Winter Weather Very Low
Ice Storm Very Low
Heat Wave Very Low
Landslide Very Low
Strong Wind Very Low
Tornado Very Low
Lightning Very Low
Earthquake 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: Wildfire
Wildfire risk in the model reflects fuel, terrain, weather and how much development sits in the wildland-urban interface. It is one of the few hazards where the exposure is materially changed by land management and building choices, not only by where the county happens to be.
Worth noting for Slope County: the model and the federal record do NOT point at the same hazard. Wildfire carries the highest modeled rating (Very Low), 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
Slope County's closest FEMA peer: Taos County, NM
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Slope County. Record similarity, not a safety rating.
Closest declaration profiles
Slope County shows 10 FEMA declarations, led by Severe Storm.
Similar Major-disaster share
Slope County: 7 of 10 of its declarations are Major.
Similar modeled NRI score
Slope County: NRI composite 0.6 (Very Low).
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 Slope County - capture-dated entries only.
Further reading for this county
Most disaster-prone counties
With 10 FEMA declarations, Slope County sits in the high-volume declaration band - see how that count ranks against other U.S. counties.
More PlainHazard guides
- Most disaster-prone counties - U.S. counties ranked by FEMA declaration totals.
- Understanding disaster data - declarations vs storm events vs NRI scores.
- Preparing for natural disasters - household checklist (not county-specific advice).
Related
Frequently Asked Questions
What is the most common disaster type in Slope County?
The most common disaster type in Slope County is Severe Storm, with 3 declarations. Other disaster types include Biological (2), Snowstorm (2), Flood (2).
How does Slope County's FEMA declaration record compare with the North Dakota average?
The typical North Dakota county has 25.9 FEMA declaration records; Slope County has 10, or 61% fewer. Against the national county mean of 20.7, this county's total is 52% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Slope County received?
Slope County has received 7 major disaster declarations, representing 70% of all 10 disaster declarations.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Slope County?
No. In Slope County, Wildfire has the highest National Risk Index rating (Very Low), while Cold Wave leads Expected Annual Loss at about $597.3K. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Slope County?
The most active year for disaster declarations in Slope County was 1978, with 2 declarations. The county has FEMA disaster data spanning 1978 to 2020.
What is the FEMA National Risk Index score for Slope County?
According to the FEMA National Risk Index, Slope County, North Dakota has an overall risk score of 0.6 out of 100 (Very Low). Social vulnerability here rates Very Low, while community resilience comes in at Very Low. The Expected Annual Loss (EAL) score is Very Low, representing $1.1M in annualized losses.
Which natural hazard poses the greatest risk to Slope County?
Based on FEMA NRI data, the highest-risk natural hazard in Slope County is Wildfire (risk rating: Very Low). Other significant hazards include Cold Wave (Relatively Low) and Drought (Very Low). FEMA's modeled event frequency puts wildfire here at roughly once every 1,423 years. 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.
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 Slope County
Against a North Dakota county mean of 26 declarations, Slope County, ND records 10, or 61% fewer. PlainHazard classifies that historical total as high activity.
- Major Disaster is the largest group (7 of 10) in a declaration history that remains below its state benchmark; frequency here is not a forecast. North Dakota overview
- Nationally the county exceeds 10% of recorded county totals, but its own North Dakota benchmark is higher. The ranking keeps those two contexts separate. Most-disaster rankings
- With no NFIP county row, the declaration register and modeled NRI remain distinct evidence rather than substitutes for a claims history. Disaster-data guide
A below-average federal record is not a safety guarantee. Use National Weather Service alerts and local emergency-management notices for present conditions, not this historical comparison.
PlainHazard derives this profile from FEMA's Disaster Declarations Summaries and National Risk Index data. The declaration comparison covers 3,266 U.S. counties and county equivalents in this database, refreshed as of 2026-08-03. Read our methodology - how this data is sourced, computed, and verified.
All federal data sources used on this page
- FEMA OpenFEMA, Disaster Declarations Summaries v2 - all federally-declared disasters for this county. fema.gov/openfema/disaster-declarations
- FEMA National Risk Index (NRI) - per-county per-hazard risk ratings and expected annual loss. hazards.fema.gov/nri
- NOAA NCEI Storm Events Database - state-level storm/severe-weather event records, 2015-2025. ncdc.noaa.gov/stormevents
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.