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Oklahoma · FEMA + NOAA + National Risk Index

Harmon County, OK

20 FEMA disaster declarations (1995-2021), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Ice Storm.

20
FEMA declarations
13
Major disasters
10
NRI risk · Very Low
Severe Ice Storm
Top hazard

The verdict

Harmon County has a nationally busy FEMA history: 20 declarations, more than 46% of counties in this registry. But the state comparison tempers that reading: the total is 38% below the Oklahoma county mean. FEMA's separate National Risk Index places the county safer than 10%; that score models loss and vulnerability rather than counting declarations.

Safer than 10%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
20
FEMA declarations vs 21 national county avg
27
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 40057 · Harmon County 20 declarations · rank 1612/3,266

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

  • DECL-HEAVY 20
  • MAJOR-MID 65%
  • RANK-LOWER #1,612
  • PHOTO-FINISH Monona
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Ice S…
  • VS-ST-BELOW -38%

Nearest declaration peer: Monona, IA (0 declaration gap)

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

Harmon County in the declaration-count neighbourhood

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

declarations

What this shows Harmon County carries 20 FEMA declaration records, ranked 1612 of 3,266 counties in this registry.

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

How Harmon County's FEMA declaration count compares nationally

Harmon County vs. all counties in this dataset

FEMA disaster declarations, all-time · Harmon County

20 46th percentile higher than 46% 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

Harmon County's FEMA Risk Index score

0/100100/100Oklahoma avg56/10010.2/100
FEMA National Risk Index composite score vs. the Oklahoma county average

What does Harmon 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 10.2/100 (Very Low). Expected Annual Loss is rated Very Low (roughly $3.3M in annualized losses). Two modifiers shape how that exposure becomes real-world harm here: social vulnerability (Very High) and community resilience (Very Low). Of the 18 hazards FEMA models, Drought stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at 140 modeled event-days per year here, based on 3,549 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 27 claims and $195.4K 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.

Start with the state benchmark: a Oklahoma county averages 32.2 federal declaration records, while Harmon County has 20. The gap is 38% 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

Harmon County, OK · 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) Moderate
14/30

20 OpenFEMA declarations, full ingest window (1.0x national county average)

County Disaster Density Moderate
8/25

20 declarations (0.6x state county average of 32)

Major Disaster Share High
16/25

13 of 20 declarations are major disasters (65%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Harmon County

FEMA NRI 8-hazard radar - Harmon County

Harmon County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 8, Tornado 25, Wildfire 8, Drought 70, Heat Wave 8, Winter Storm 25. The simple mean of these eight displayed scores is 20 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 20 8-hazard mean
Harmon County NRI risk profile FIPS 40057 · displayed-hazard mean 20/100
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

20

Above median

Major Disaster share

65%

Major-heavy

NRI risk score

10

Very Low

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

How often does each hazard strike Harmon 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
Drought Relatively High 140 modeled event-days per year
Hail Relatively Low an average of 8.1 times per year
Strong Wind Relatively Moderate an average of 3.6 times per year
Wildfire Very Low roughly once every 464 years
Ice Storm Relatively Low roughly once every 1 years
Tornado Relatively Low roughly once every 2 years
Winter Weather Relatively Low an average of 7.3 times per year
Heat Wave Very Low 9.9 modeled event-days per year
Landslide Very Low roughly once every 10 years
Cold Wave Very Low an average of 1.4 times per year
Earthquake Very Low roughly once every 1,157 years
Hurricane Very Low roughly once every 174 years
Lightning Very Low an average of 49 times per year
Riverine Flooding Very Low roughly once every 6 years

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

Disaster Types

Severe Ice Storm 7
Severe Storm 7
Biological 2
Fire 2
Hurricane 1
Tornado 1

What Severe Ice Storm declarations mean here

Severe Ice Storm is the most frequent declaration type on Harmon County's record, 35% of its declarations. Ice storms damage differently from snowstorms: accumulating freezing rain loads power lines and tree limbs until they fail, so the dominant cost is usually infrastructure and extended power loss rather than structural damage to buildings. Outages measured in days, not hours, are the characteristic consequence, which is why these declarations frequently authorise emergency protective measures and debris removal.

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 - 13 65.0%

of all 20 declarations

Emergency - 7 35.0%

of all 20 declarations

FEMA Declarations Timeline

Year Declarations
2021 2
2020 2
2018 1
2016 1
2015 1
2011 1
2010 3
2008 2
2007 1
2006 1
2005 1
2002 1
2001 1
1995 2

Disaster Declarations

How the 20 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 20 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4587 SEVERE WINTER STORMS DR Severe Ice Storm 2021-02-24
3555 SEVERE WINTER STORM EM Severe Ice Storm 2021-02-17
4530 COVID-19 PANDEMIC DR Biological 2020-04-05
3462 COVID-19 EM Biological 2020-03-13
4373 WILDFIRES DR Fire 2018-06-25
4256 SEVERE WINTER STORMS AND FLOODING DR Severe Storm 2016-02-10
4222 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-05-26
3316 SEVERE WINTER STORM EM Severe Storm 2011-02-02
1883 SEVERE WINTER STORM DR Severe Ice Storm 2010-03-05
1876 SEVERE WINTER STORM DR Severe Storm 2010-02-25
3308 SEVERE WINTER STORM EM Severe Storm 2010-01-30
1775 SEVERE STORMS AND FLOODING DR Severe Storm 2008-07-09
3280 SEVERE WINTER STORMS EM Severe Ice Storm 2007-12-10
3272 SEVERE WINTER STORMS AND FLOODING EM Severe Ice Storm 2007-01-14
1623 EXTREME WILDFIRE THREAT DR Fire 2006-01-10
3219 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-05
1401 SEVERE WINTER ICE STORM DR Severe Ice Storm 2002-02-01
1355 SEVERE WINTER ICE STORM DR Severe Ice Storm 2001-01-05
1066 SEVERE STORMS AND FLOODING DR Severe Storm 1995-09-01
1058 TORNADOES, SEVERE STORMS AND FLOODING DR Tornado 1995-06-26

Storm Events in Oklahoma

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

Storm Type Events Fatalities Injuries Property Damage
Hail 5,894 0 1 $19.8M
Thunderstorm Wind 5,592 6 36 $199.5M
Drought 2,935 0 0 $0
Heat 2,134 7 428 $0
Excessive Heat 1,771 2 401 $0

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

NFIP Flood Insurance Claims

Total Claims

27

Total Paid

$195.4K

Avg Per Claim

$7.2K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 10.2/100

Expected Annual Loss

Very Low

$3.3M/year

Social Vulnerability

Very High

Community Resilience

Very Low

Hazard Risk Breakdown

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

Drought is the slowest of the modeled hazards and the least visible: it does its damage to agriculture, water supply and soil over seasons rather than hours, so it rarely produces the kind of single-day damage that drives a disaster declaration. FEMA scores it in event-days per year rather than discrete events for exactly that reason.

Worth noting for Harmon County: the model and the federal record do NOT point at the same hazard. Drought carries the highest modeled rating (Relatively High), while the county's declaration history is led by Severe Ice 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

Harmon County's closest FEMA peer: Washington County, AR

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Harmon 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 20 FEMA declarations, Harmon 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 Harmon County?
The most common disaster type in Harmon County is Severe Ice Storm, with 7 declarations. Other disaster types include Severe Storm (7), Biological (2), Fire (2).
How does Harmon County's FEMA declaration record compare with the Oklahoma average?
The typical Oklahoma county has 32.2 FEMA declaration records; Harmon County has 20, or 38% fewer. Against the national county mean of 20.7, this county's total is 3% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Harmon County received?
Harmon County has received 13 major disaster declarations, representing 65% of all 20 disaster declarations.
How many flood insurance claims has Harmon County filed?
Harmon County has 27 National Flood Insurance Program (NFIP) claims totaling $195.4K in payments, with an average of $7.2K per claim.
What was the worst year for disasters in Harmon County?
The most active year for disaster declarations in Harmon County was 2010, with 3 declarations. The county has FEMA disaster data spanning 1995 to 2021.
What is the FEMA National Risk Index score for Harmon County?
According to the FEMA National Risk Index, Harmon County, Oklahoma has an overall risk score of 10.2 out of 100 (Very Low). Social vulnerability here rates Very High, while community resilience comes in at Very Low. The Expected Annual Loss (EAL) score is Very Low, representing $3.3M in annualized losses.
Which natural hazard poses the greatest risk to Harmon County?
Based on FEMA NRI data, the highest-risk natural hazard in Harmon County as of the latest release is Drought (risk rating: Relatively High). Other significant hazards include Hail (Relatively Low) and Strong Wind (Relatively Moderate). FEMA's modeled event frequency puts drought here at 140 modeled event-days per year, drawn from 3,549 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 Harmon County · vintage 2026-08-25 · Methodology · Oklahoma profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events