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Montana · FEMA + NOAA + National Risk Index

McCone County, MT

10 FEMA disaster declarations (1987-2026), with a FEMA National Risk Index rating of Very Low. Most common hazard: Flood.

10
FEMA declarations
8
Major disasters
5
NRI risk · Very Low
Flood
Top hazard

The verdict

McCone 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 9% below the Montana county mean. FEMA's separate National Risk Index places the county safer than 5%; that score models loss and vulnerability rather than counting declarations.

Safer than 5%
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
flood 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.

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FEMA OpenFEMA declaration desk

County FIPS 30055 · McCone County 10 declarations · rank 2939/3,266

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

  • DECL-MID 10
  • MAJOR-HEAVY 80%
  • RANK-LOWER #2,939
  • PHOTO-FINISH Cheyenne
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Flood
  • VS-ST-BELOW -9%

Nearest declaration peer: Cheyenne, NE (0 declaration gap)

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

McCone County among counties with fewer federal records

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

declarations

What this shows McCone County carries 10 FEMA declaration records, ranked 2939 of 3,266 counties in this registry.

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

McCone County versus quieter counties in this dataset

McCone County among lower-declaration counties nationally

FEMA disaster declarations, all-time · McCone County

10 10th percentile higher than 10% 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

McCone County's FEMA Risk Index score

0/100100/100Montana avg33/1005.2/100
FEMA National Risk Index composite score vs. the Montana county average

What does McCone 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 5.2/100 (Very Low). Expected Annual Loss is rated Very Low (roughly $3.5M in annualized losses). Two modifiers shape how that exposure becomes real-world harm here: social vulnerability (Relatively Low) and community resilience (Very Low). Even the county's top-rated hazard, Cold Wave, 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 an average of 14 times per year here, based on 260 historical events on record.

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 Montana county averages 11.0 federal declaration records, while McCone County has 10. The gap is 9% 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.

53 /100

Historical Activity Index

High historical activity

McCone County, MT · 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 Moderate
11/25

10 declarations (0.9x state county average of 11)

Major Disaster Share Very High
20/25

8 of 10 declarations are major disasters (80%)

Hazard Diversity Very High
15/20

6 different disaster types declared in McCone County

FEMA NRI 8-hazard radar - McCone County

McCone 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 8, Heat Wave 8, Winter Storm 25. The simple mean of these eight displayed scores is 9 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 9 8-hazard mean
McCone County NRI risk profile FIPS 30055 · displayed-hazard mean 9/100
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

10

Low volume

Major Disaster share

80%

Mostly major

NRI risk score

5

Very Low

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

How often does each hazard strike McCone 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
Cold Wave Relatively Low an average of 14 times per year
Hail Relatively Low an average of 1.9 times per year
Wildfire Very Low roughly once every 838 years
Drought Very Low 40 modeled event-days per year
Winter Weather Relatively Low an average of 19 times per year
Strong Wind Relatively Low an average of 1.7 times per year
Landslide Very Low roughly once every 1 years
Heat Wave Very Low 2.7 modeled event-days per year
Tornado Very Low roughly once every 4 years
Earthquake Very Low roughly once every 3,300 years
Lightning Very Low an average of 27 times per year
Riverine Flooding Very Low roughly once every 1 years
Ice Storm Very Low roughly once every 67 years

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

Disaster Types

Flood 3
Biological 2
Severe Storm 2
Straight-Line Winds 1
Other 1
Hurricane 1

What Flood declarations mean here

Flood is the most frequent declaration type on McCone County's record, 30% of its declarations. Federal flood declarations cover two mechanisms that behave very differently: riverine flooding, which builds over days as a watershed drains and is usually forecast well in advance, and flash flooding, which can arrive in under an hour from rainfall that fell somewhere upstream.

Flood is also the one hazard class where a second federal dataset exists for the same events. The National Flood Insurance Program records what was actually paid on insured losses, so it measures a narrower thing than the declaration count: uninsured damage, and flooding outside mapped special flood hazard areas, never enters it. Reading the two together is more informative than either alone.

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 - 8 80.0%

of all 10 declarations

Emergency - 2 20.0%

of all 10 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2021 1
2020 2
2019 1
2013 1
2011 1
2005 1
2001 1
1987 1

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
4902 SEVERE WINTER STORM AND STRAIGHT-LINE WINDS DR Straight-Line Winds 2026-04-07
4608 STRAIGHT-LINE WINDS DR Other 2021-08-13
4508 COVID-19 PANDEMIC DR Biological 2020-03-31
3476 COVID-19 EM Biological 2020-03-13
4437 FLOODING DR Flood 2019-05-24
4127 FLOODING DR Flood 2013-07-10
1996 SEVERE STORMS AND FLOODING DR Severe Storm 2011-06-17
3253 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-13
1350 SEVERE WINTER STORMS DR Severe Storm 2000-12-06
777 SEVERE STORMS & FLOODING DR Flood 1986-10-14

Storm Events in Montana

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

Storm Type Events Fatalities Injuries Property Damage
High Wind 3,735 1 2 $5.3M
Thunderstorm Wind 2,396 5 24 $15.1M
Hail 2,015 0 0 $4.1M
Winter Storm 1,502 13 18 $11.2M
Heavy Snow 796 5 3 $143.0K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 5.2/100

Expected Annual Loss

Very Low

$3.5M/year

Social Vulnerability

Relatively Low

Community Resilience

Very Low

Hazard Risk Breakdown

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

Cold Wave measures exposure to extreme cold rather than to snow. Its harm is concentrated in health effects, burst infrastructure and energy demand spikes, and it falls hardest where the building stock and the grid were not built with sustained cold in mind.

Worth noting for McCone County: the model and the federal record do NOT point at the same hazard. Cold Wave carries the highest modeled rating (Relatively Low), while the county's declaration history is led by Flood. 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

McCone County's closest FEMA peer: Perkins County, NE

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for McCone 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 10 FEMA declarations, McCone 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 McCone County?
The most common disaster type in McCone County is Flood, with 3 declarations. Other disaster types include Biological (2), Severe Storm (2), Straight-Line Winds (1).
How does McCone County's FEMA declaration record compare with the Montana average?
The typical Montana county has 11.0 FEMA declaration records; McCone County has 10, or 9% 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 McCone County received?
McCone County has received 8 major disaster declarations, representing 80% of all 10 disaster declarations.
What was the worst year for disasters in McCone County?
The most active year for disaster declarations in McCone County was 2020, with 2 declarations. The county has FEMA disaster data spanning 1987 to 2026.
What is the FEMA National Risk Index score for McCone County?
According to the FEMA National Risk Index, McCone County, Montana has an overall risk score of 5.2 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 $3.5M in annualized losses.
Which natural hazard poses the greatest risk to McCone County?
FEMA's NRI data points to McCone County is Cold Wave (risk rating: Relatively Low). Other significant hazards include Hail (Relatively Low) and Wildfire (Very Low). FEMA's modeled event frequency puts cold wave here at an average of 14 times per year, drawn from 260 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.

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