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Wyoming · FEMA + NOAA + National Risk Index

Crook County, WY

7 FEMA disaster declarations (1978-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Biological.

7
FEMA declarations
4
Major disasters
16
NRI risk · Very Low
Biological
Top hazard

The verdict

FEMA records a middle-volume declaration history for Crook County: 7 entries, 23% above its Wyoming county benchmark and ahead of 4% of counties nationally. The National Risk Index answers a different question. Its modeled loss, vulnerability, and resilience inputs place this county safer than 16% of U.S. counties.

Safer than 16%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
7
FEMA declarations vs 21 national county avg
2
biological declarations, the most common hazard here

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 56011 · Crook County 7 declarations · rank 3129/3,266

DECL-LIGHT · MAJOR-MID · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-MODERATE · TYPE-LEAD · VS-ST-ABOVE

  • DECL-LIGHT 7
  • MAJOR-MID 57%
  • RANK-LOWER #3,129
  • PHOTO-FINISH Clinton
  • NRI-LOW Very Low
  • ACT-MODERATE Moderate
  • TYPE-LEAD Biological
  • VS-ST-ABOVE +23%

Nearest declaration peer: Clinton, IL (0 declaration gap)

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

Crook County among counties with fewer federal records

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

declarations

What this shows Crook County carries 7 FEMA declaration records, ranked 3129 of 3,266 counties in this registry.

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

Crook County versus quieter counties in this dataset

Crook County among lower-declaration counties nationally

FEMA disaster declarations, all-time · Crook County

7 4th percentile higher than 4% 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

Crook County's FEMA Risk Index score

0/100100/100Wyoming avg38/10016.1/100
FEMA National Risk Index composite score vs. the Wyoming county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Crook County is led by Riverine Flooding (about $2.5M Expected Annual Loss, Historical Loss Ratio Very High), while Wildfire carries the highest National Risk Index rating (Relatively 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 Crook County's hazard record show?

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 16.1/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $6.3M in annualized losses), tempered or compounded by a Relatively Low social-vulnerability score and Very Low community-resilience score. Even the county's top-rated hazard, Wildfire, only reaches Relatively 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 348 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.

The declaration register points in the busier direction. Crook County's 7 federal records stand 23% above the Wyoming county mean of 5.7. 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.

44 /100

Historical Activity Index

Moderate historical activity

Crook County, WY · 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
5/30

7 OpenFEMA declarations, full ingest window (0.3x national county average)

County Disaster Density High
15/25

7 declarations (1.2x state county average of 6)

Major Disaster Share High
14/25

4 of 7 declarations are major disasters (57%)

Hazard Diversity High
10/20

4 different disaster types declared in Crook County

FEMA NRI 8-hazard radar - Crook County

Crook 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 25, Drought 8, 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
Crook County NRI risk profile FIPS 56011 · 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

7

Low volume

Major Disaster share

57%

Major-heavy

NRI risk score

16

Very Low

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

How often does each hazard strike Crook 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 Relatively Low roughly once every 348 years
Hail Relatively Moderate an average of 4.4 times per year
Winter Weather Relatively Moderate an average of 20 times per year
Cold Wave Relatively Low an average of 4.8 times per year
Landslide Very Low roughly once every 1 years
Lightning Relatively Low an average of 40 times per year
Earthquake Very Low roughly once every 1,142 years
Tornado Very Low roughly once every 2 years
Riverine Flooding Very Low roughly once every 1 years
Drought Very Low 73 modeled event-days per year
Strong Wind Relatively Low an average of 1.9 times per year
Ice Storm Very Low roughly once every 62 years
Heat Wave Very Low 0.1 modeled event-days per year
Avalanche Very Low roughly once every 100 years

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

Disaster Types

Biological 2
Severe Storm 2
Fire 2
Flood 1

What Biological declarations mean here

Biological is the most frequent declaration type on Crook County's record, 29% of its declarations. In practice this category is dominated by the COVID-19 declarations of 2020, which were issued across every US state and territory rather than in response to any local hazard event.

This has a direct consequence for how Crook County's number should be read. Because those declarations reached essentially every county in the country, they raise every county's total by a similar amount and tell you nothing about local hazard exposure. A county whose record is led by Biological declarations is, in most cases, a county with a genuinely quiet weather-hazard history, the pandemic records are simply the largest thing in an otherwise short list.

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 - 4 57.1%

of all 7 declarations

Fire Management - 2 28.6%

of all 7 declarations

Emergency - 1 14.3%

of all 7 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2011 1
2006 1
2001 2
1978 1

Disaster Declarations

How the 7 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 7 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4535 COVID-19 PANDEMIC DR Biological 2020-04-11
3479 COVID-19 EM Biological 2020-03-13
4007 SEVERE STORMS, FLOODING, AND LANDSLIDES DR Severe Storm 2011-07-22
2654 THORN DIVIDE FIRE COMPLEX FM Fire 2006-07-14
2382 WY - MCFARLAND DIVIDE FIRE - 09/06/01 FM Fire 2001-09-06
1351 SEVERE WINTER STORM DR Severe Storm 2000-12-13
557 SEVERE STORMS, FLOODING & MUDSLIDES DR Flood 1978-05-29

Storm Events in Wyoming

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

Storm Type Events Fatalities Injuries Property Damage
High Wind 5,115 0 21 $1.5M
Winter Storm 2,212 1 41 $115.0K
Hail 1,811 0 0 $5.5M
Thunderstorm Wind 1,137 1 12 $916.3K
Winter Weather 616 3 7 $100.0K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 16.1/100

Expected Annual Loss

Very Low

$6.3M/year

Social Vulnerability

Relatively Low

Community Resilience

Very Low

Hazard Risk Breakdown

Wildfire Relatively Low
Hail Relatively Moderate
Winter Weather Relatively Moderate
Cold Wave Relatively Low
Landslide Very Low
Lightning Relatively Low
Earthquake Very Low
Tornado Very Low
Riverine Flooding Very Low
Drought Very Low
Strong Wind Relatively Low
Ice Storm Very Low
Heat Wave Very Low
Avalanche 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 Crook County: the model and the federal record do NOT point at the same hazard. Wildfire carries the highest modeled rating (Relatively Low), while the county's declaration history is led by Biological. 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

Crook County's closest FEMA peer: Edwards County, IL

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Crook 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

FEMA's National Risk Index flags Wildfire as the top modeled exposure here (Relatively Low); the guide explains how that model differs from declaration counts.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Crook County?
The most common disaster type in Crook County is Biological, with 2 declarations. Other disaster types include Severe Storm (2), Fire (2), Flood (1).
How does Crook County's FEMA declaration record compare with the Wyoming average?
FEMA lists 7 declaration records for Crook County. That is 23% above the Wyoming county mean of 5.7. Its count is also 66% below 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 Crook County received?
Crook County has received 4 major disaster declarations, representing 57% of all 7 disaster declarations.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Crook County?
No. In Crook County, Wildfire has the highest National Risk Index rating (Relatively Low), while Riverine Flooding leads Expected Annual Loss at about $2.5M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Crook County?
The most active year for disaster declarations in Crook County was 2001, with 2 declarations. The county has FEMA disaster data spanning 1978 to 2020.
What is the FEMA National Risk Index score for Crook County?
According to the FEMA National Risk Index, Crook County, Wyoming has an overall risk score of 16.1 out of 100 (Very Low). The county's social vulnerability rating is Relatively Low and community resilience is Very Low. The Expected Annual Loss (EAL) score is Very Low, representing $6.3M in annualized losses.
Which natural hazard poses the greatest risk to Crook County?
The top hazard flagged by FEMA's NRI for Crook County is Wildfire (risk rating: Relatively Low). Other significant hazards include Hail (Relatively Moderate) and Winter Weather (Relatively Moderate). FEMA's modeled event frequency puts wildfire here at roughly once every 348 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.

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