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Beaverhead County, Montana: hazard history

What federal records show has already happened here: disaster declarations, storms, and flood insurance claims. This is a record of the past. It is not a forecast and not a hazard score.

At a glance

Storm events recorded by NOAA
390
1996 to 2026
People killed and injured in those events
2 / 23
Deaths (direct and indirect) / injuries (direct)
Property damage NOAA recorded
$241K
Nominal dollars, not adjusted for inflation
FEMA disaster declarations naming this county
6
2000 to 2026
NFIP flood insurance claims
12
1982 to 2011; a count, not a rate
NFIP payments on those claims
$2K
Nominal dollars

What this means

  • The event NOAA recorded most often here is Thunderstorm Wind, with 79 records.
  • The costliest single record is Flood in 2023: $100K in property damage, in the dollars of that year.
  • The deadliest record is Cold/Wind Chill in 1996, with 1 death.
  • FEMA has declared 6 disasters that named this county, most often for fire.
  • The worst year for flood insurance claims was 1984, with 8 claims.

What this can't tell you

  • What happens next. Past events do not set the odds of the next one.
  • Anything before 1996 from NOAA. That is when NOAA began recording every event type; earlier files hold only tornado, hail and wind, so they are left out on purpose.
  • Today's cost. Damage and payments are in the dollars of the year they happened.
  • A flood rate. NFIP counts claims but not how many homes were insured, and many flooded homes carry no flood insurance.
  • Earthquakes, wildfire perimeters or radar-detected hail. Those records are not tied to counties.

Federal disaster declarations (FEMA)

FEMA declared 6 disasters that named Beaverhead County between 2000 and 2026.

FEMA disaster declarations naming Beaverhead County, by incident type
Incident typeDisastersMost recent
Fire32026
Biological22020
Hurricane12005

Most recent declarations

  • FM-5671 2026 · Fire · Sand Creek Fire
  • DR-4508 2020 · Biological · Covid-19 Pandemic
  • EM-3476 2020 · Biological · Covid-19
  • EM-3253 2005 · Hurricane · Hurricane Katrina Evacuation
  • FM-2318 2000 · Fire · Mt - Central Zone 3c Fire Complex
  • DR-1340 2000 · Fire · Wildfires

Not counted above: 33 statewide declarations, which covered every county in Montana. A declaration is a decision to send federal help, not a measure of how bad an event was. Records run from 1953. Source: FEMA OpenFEMA Disaster Declarations Summaries.

Storms recorded by NOAA, by type

NOAA storm event records for Beaverhead County, 1996 to 2026, by event type
Event typeRecordsDeathsInjuriesProperty damage
Thunderstorm Wind7900$0
High Wind7400$1K
Heavy Snow6200$0
Winter Storm4700$0
Hail4400$0
Wildfire20018$30K
Heavy Rain1700$0
Flood900$210K
Winter Weather900$0
Cold/Wind Chill710$0
Extreme Cold/Wind Chill700$0
Flash Flood405$0
Tornado400$0
Blizzard300$0
Funnel Cloud300$0
Avalanche110$0

Records start in 1996. Damage is NOAA's estimate at the time, in nominal dollars, and is often rounded; it is not insurance claims data. A storm that crossed two NOAA zones in this county is recorded, and counted, once per zone.

Year by year

NOAA storm event records in Beaverhead County each year. The busiest year was 2020, with 37 records.

Show the numbers for every year
NOAA storm event records in Beaverhead County by year
YearRecordsDeathsProperty damage
1996111$11K
199750$0
199861$0
1999100$0
2000160$30K
2001110$0
2002100$0
200360$0
200450$0
200540$0
200640$0
200760$0
2008230$0
2009100$0
2010120$0
201180$0
2012170$0
2013200$0
201490$0
201570$0
201650$0
201780$0
201860$0
2019190$0
2020370$0
2021290$0
2022260$0
2023130$100K
2024250$100K
2025120$0
2026100$0

Years with no record are left out of the table, not shown as zero.

Notable events

Costliest records

  1. Flood · Apr 10, 2023$100K
    NOAA name: BEAVERHEAD · NOAA record 1096959
  2. Flood · Jan 16, 2024$100K
    NOAA name: BEAVERHEAD · NOAA record 1151383
  3. Flood · Feb 12, 1996$10K
    NOAA name: BEAVERHEAD · NOAA record 5582842
  4. Wildfire · Jul 31, 2000$10K
    NOAA name: BEAVERHEAD · 6 injuries · NOAA record 5170944
  5. Wildfire · Aug 1, 2000$10K
    NOAA name: BEAVERHEAD · 6 injuries · NOAA record 5170945

Deadliest records

  1. Cold/Wind Chill · Feb 1, 19961 death
    NOAA name: BEAVERHEAD · NOAA record 5582843
  2. Avalanche · Nov 15, 19981 death
    NOAA name: BEAVERHEAD · NOAA record 5674312

Each line is one NOAA record, linked to its page at NOAA. One large storm can appear more than once if NOAA recorded it in several zones of this county. Dollars are nominal.

Flood insurance claims (NFIP)

The National Flood Insurance Program paid $2K on 12 claims in Beaverhead County from 1982 to 2011.

Years with the most NFIP claims in Beaverhead County
YearClaimsPaid
19848$95
20111$0
19981$765
19951$0
19821$2K

A count of claims, not a rate: NFIP publishes no count of insured homes beside it, and most flood damage is uninsured. Nominal dollars. Records run from 1978 to 2024; claims filed without a county code are not on any county page. Source: FEMA OpenFEMA FIMA NFIP Redacted Claims.

Hazard vulnerability analysis: the probability column for a facility in Beaverhead County

A hazard vulnerability analysis rates each hazard for probability, impact, preparedness and response. Probability is the one column the county’s federal record can fill — NCEI storm events from 1996 to 2026 and FEMA declarations naming the county — and this is what it says for a facility here, on the 0–3 scale of the all-hazards structure surveyors expect. The other six columns are the facility’s own judgment about its building, and Calchis leaves them blank.

HazardProb.Basis, from the county record
Severe Thunderstorm3123 NCEI events over 31 years (3.97/yr). No federal disaster declaration of this kind has named the county.
Snow Fall / Blizzard / Ice Storm3121 NCEI events over 31 years (3.90/yr). No federal disaster declaration of this kind has named the county.
Wild Fire320 NCEI events over 31 years (0.65/yr). 3 federal disaster declarations naming the county.
High Wind (non-convective)374 NCEI events over 31 years (2.39/yr). No federal disaster declaration of this kind has named the county.
Hurricane / Tropical Storm2No events of this kind on the county's NCEI record over 31 years. 1 federal disaster declaration naming the county.
Tornado24 NCEI events over 31 years (0.13/yr). No federal disaster declaration of this kind has named the county.
Flood, External230 NCEI events over 31 years (0.97/yr). No federal disaster declaration of this kind has named the county.
Temperature Extremes214 NCEI events over 31 years (0.45/yr). No federal disaster declaration of this kind has named the county.
Epidemic22 federal disaster declarations naming the county.
Drought1No events of this kind on the county's NCEI record over 31 years. No federal disaster declaration of this kind has named the county.
Earthquake1No federal disaster declaration of this kind has named the county.
Landslide11 NCEI event over 31 years (0.03/yr). No federal disaster declaration of this kind has named the county.
Tidal Wave / Tsunami1No events of this kind on the county's NCEI record over 31 years. No federal disaster declaration of this kind has named the county.
Volcano1No events of this kind on the county's NCEI record over 31 years. No federal disaster declaration of this kind has named the county.
Dam Inundation1No federal disaster declaration of this kind has named the county.

A dash means the record does not speak to that hazard; it is not a zero. Whether a finished document satisfies the CMS Emergency Preparedness Rule is the facility’s finding and its surveyor’s. Complete the HVA for a facility in Beaverhead County — the technological, human and hazardous-materials rows, the six facility columns, the approval and the printed document — or read the sample analysis on that page first.

How this page was made

  • Every figure is counted from public federal records held by Calchis: NOAA NCEI Storm Events, FEMA OpenFEMA Disaster Declarations, and FEMA NFIP claims. Nothing is modeled or estimated.
  • NOAA files some events by county and others by forecast zone, and names both. Records are counted as Beaverhead County when their NOAA name is this county's name, alone or with a word like “Coastal” or “Inland” in front. The county codes NOAA also publishes have not been loaded for Montana yet; when they are, this page will count by code instead, and some counties' records will grow. NOAA names counted here: BEAVERHEAD, NORTHWEST BEAVERHEAD COUNTY. Zones named for something else, such as a mountain range or two counties at once, are left out: 24% of Montana's NOAA records.
  • Counts last rebuilt from the source records on Sep 15, 2026.
  • This county's NOAA record is short (under 100 records, under 10 with damage, or under 10 years), so this page is not offered to search engines. It is still accurate.

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Recorded history from federal public records. Not a hazard score, a risk score, or a forecast, and not a substitute for professional actuarial or emergency-management assessment. Decision-support intelligence — not a primary alerting or dispatch system. Verify against official sources.