FEMA Records
11
Low volume
Michigan · FEMA + NOAA + National Risk Index
Arenac County, MI
11 FEMA disaster declarations (1973-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Flood.
- 11
- FEMA declarations
- 6
- Major disasters
- 20
- NRI risk · Very Low
- Flood
- Top hazard
The verdict
Two federal records point in the busier direction for Arenac County. Its 11 FEMA declarations are 10% above the Michigan county mean and exceed the count for 12% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 20%, based on modeled expected annual loss, social vulnerability, and community resilience.
- Safer than 20%
- of U.S. counties for FEMA National Risk Index score
- Very Low
- FEMA National Risk Index rating
- 11
- FEMA declarations vs 21 national county avg
- 119
- 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.
How does Arenac County compare?
Arenac County vs. all counties in this dataset
FEMA disaster declarations, all-time
11 12th percentile higher than 12% 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
Arenac County's FEMA Risk Index score
FEMA National Risk Index composite score vs. the Michigan county average
Which hazard drives modeled loss here?
FEMA's modeled annual dollar loss for Arenac County is led by Riverine Flooding (about $3.5M Expected Annual Loss, Historical Loss Ratio Relatively Low), while Winter Weather carries the highest National Risk Index rating (Relatively Moderate). 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 Arenac County's hazard record show?
Reading the federal records together
The NFIP claims register shows a middle-volume loss record here: 119 paid claims, totaling $2.1M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $17.3K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.
The declaration register points in the busier direction. Arenac County's 11 federal records stand 10% above the Michigan county mean of 10.0. 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.
Declaration frequency
The FEMA register is busy by both local and national comparisons. It contains 11 entries for Arenac County, including 6 Major Disaster records, 10% above the Michigan county mean. Across the 47-year span, that works out to 0.2 declarations a year. Flood leads the file with 3 entries. Declaration type records the federal action taken, not every assistance program approved.
FEMA National Risk Index
This county's FEMA National Risk Index composite lands at 20.3/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $5.9M in annualized losses), tempered or compounded by a Relatively High social-vulnerability score and Very High community-resilience score. Among the 18 modeled hazards, Winter Weather carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 12 times per year here, based on 227 historical events on record.
54 /100
Historical Activity Index
High historical activity
Arenac County, MI · 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
8/30
11 OpenFEMA declarations, full ingest window (0.5x national county average)
County Disaster Density High
14/25
11 declarations (1.1x state county average of 10)
Major Disaster Share High
14/25
6 of 11 declarations are major disasters (55%)
Hazard Diversity Very High
18/20
7 different disaster types declared in Arenac County
Historical Declaration Activity
Activity Band
High
vs. Michigan Avg
+10%
State avg: 10.0
vs. National Avg
-47%
National avg: 20.7
Avg Per Year
0.2
Over 47 years
FEMA NRI 8-hazard radar - Arenac 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
55%
Major-heavy
NRI risk score
20
Very Low
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Arenac 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 |
|---|---|---|
| Winter Weather | Relatively Moderate | an average of 12 times per year |
| Cold Wave | Relatively Low | an average of 2.2 times per year |
| Lightning | Relatively Low | an average of 28 times per year |
| Strong Wind | Relatively Low | an average of 2.1 times per year |
| Hail | Relatively Low | an average of 1.6 times per year |
| Coastal Flooding | Very Low | roughly once every 71 years |
| Riverine Flooding | Relatively Low | roughly once every 2 years |
| Wildfire | Very Low | roughly once every 4,388 years |
| Tornado | Relatively Low | roughly once every 6 years |
| Hurricane | Very Low | roughly once every 69 years |
| Landslide | Very Low | roughly once every 20 years |
| Ice Storm | Very Low | roughly once every 3 years |
| Earthquake | Very Low | roughly once every 2,262 years |
| Heat Wave | Very Low | 1 modeled event-day per year |
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
Snowstorm 2
Dam/Levee Break 1
Hurricane 1
Severe Storm 1
Drought 1
What Flood declarations mean here
Flood is the most frequent declaration type on Arenac County's record, 27% 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 - 6 54.5%
of all 11 declarations
Emergency - 5 45.5%
of all 11 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2020 | 3 | |
| 2005 | 1 | |
| 2004 | 1 | |
| 1999 | 1 | |
| 1986 | 1 | |
| 1978 | 1 | |
| 1977 | 1 | |
| 1973 | 2 | |
Disaster Declarations
How the 11 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 11 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4547 | SEVERE STORMS AND FLOODING | DR | Dam/Levee Break | 2020-07-09 |
| 4494 | COVID-19 PANDEMIC | DR | Biological | 2020-03-27 |
| 3455 | COVID-19 | EM | Biological | 2020-03-13 |
| 3225 | HURRICANE KATRINA EVACUATION | EM | Hurricane | 2005-09-07 |
| 1527 | SEVERE STORMS, TORNADOES, AND FLOODING | DR | Severe Storm | 2004-06-30 |
| 3137 | MI - SEVERE WEATHER 1/2 /99 | EM | Snowstorm | 1999-01-27 |
| 774 | SEVERE STORMS & FLOODING | DR | Flood | 1986-09-18 |
| 3057 | BLIZZARDS & SNOWSTORMS | EM | Snowstorm | 1978-01-27 |
| 3035 | DROUGHT | EM | Drought | 1977-03-02 |
| 371 | SEVERE STORMS & FLOODING | DR | Flood | 1973-04-12 |
| 363 | SEVERE STORMS & FLOODING | DR | Flood | 1972-12-01 |
Storm Events in Michigan
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Arenac County.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| Thunderstorm Wind | 3,010 | 10 | 18 | $173.8M |
| Winter Storm | 1,486 | 3 | 11 | $41.8M |
| Winter Weather | 1,254 | 21 | 38 | $892.0K |
| Hail | 962 | 0 | 0 | $77.1M |
| High Wind | 389 | 3 | 2 | $668.9M |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
119
Total Paid
$2.1M
Avg Per Claim
$17.3K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Very Low
Score: 20.3/100
Expected Annual Loss
Very Low
$5.9M/year
Social Vulnerability
Relatively High
Community Resilience
Very High
Hazard Risk Breakdown
Winter Weather Relatively Moderate
Cold Wave Relatively Low
Lightning Relatively Low
Strong Wind Relatively Low
Hail Relatively Low
Coastal Flooding Very Low
Riverine Flooding Relatively Low
Wildfire Very Low
Tornado Relatively Low
Hurricane Very Low
Landslide Very Low
Ice Storm Very Low
Earthquake Very Low
Heat Wave Very Low
Drought No Rating
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: Winter Weather
Winter Weather in the model means the accumulation of snow and cold that disrupts rather than destroys: road closures, roof loads, burst pipes and lost heating. Its costs land heavily on transport and on households least able to absorb an interruption.
Worth noting for Arenac County: the model and the federal record do NOT point at the same hazard. Winter Weather carries the highest modeled rating (Relatively Moderate), 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
Arenac County's closest FEMA peer: Elmore County, ID
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Arenac County. Record similarity, not a safety rating.
Closest declaration profiles
Arenac County shows 11 FEMA declarations, led by Flood.
Similar Major-disaster share
Arenac County: 6 of 11 of its declarations are Major.
Similar modeled NRI score
Arenac County: NRI composite 20.3 (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 Arenac County - capture-dated entries only.
Further reading for this county
Understanding disaster data
Arenac County's NFIP claims file (119 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.
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 Arenac County?
The most common disaster type in Arenac County is Flood, with 3 declarations. Other disaster types include Biological (2), Snowstorm (2), Dam/Levee Break (1).
How does Arenac County's FEMA declaration record compare with the Michigan average?
FEMA lists 11 declaration records for Arenac County. That is 10% above the Michigan county mean of 10.0. Its count is also 47% 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 Arenac County received?
Arenac County has received 6 major disaster declarations, representing 55% of all 11 disaster declarations.
How many flood insurance claims has Arenac County filed?
Arenac County has 119 National Flood Insurance Program (NFIP) claims totaling $2.1M in payments, with an average of $17.3K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Arenac County?
No. In Arenac County, Winter Weather has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $3.5M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Arenac County?
The most active year for disaster declarations in Arenac County was 2020, with 3 declarations. The county has FEMA disaster data spanning 1973 to 2020.
What is the FEMA National Risk Index score for Arenac County?
According to the FEMA National Risk Index, Arenac County, Michigan has an overall risk score of 20.3 out of 100 (Very Low). On social vulnerability the county rates Relatively High; on community resilience, Very High. The Expected Annual Loss (EAL) score is Very Low, representing $5.9M in annualized losses.
Which natural hazard poses the greatest risk to Arenac County?
FEMA's NRI data points to Arenac County is Winter Weather (risk rating: Relatively Moderate). Other significant hazards include Cold Wave (Relatively Low) and Lightning (Relatively Low). FEMA's modeled event frequency puts winter weather here at an average of 12 times per year, drawn from 227 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.
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.
What this means for Arenac County
Arenac County, MI has 11 federal declaration records, 10% more than the Michigan county mean of 10; its history sits in PlainHazard's high activity band.
- Within this above-state-average declaration file, major disaster leads with 6 of 11 records; the category describes past federal action, not the next likely hazard. Michigan overview
- The state benchmark and national rank point the same way: this count tops the Michigan mean and the totals for 12% of 3,266 U.S. counties. Most-disaster rankings
- Use the data guide to separate this mid-volume insurance-claims file from declaration counts and modeled NRI risk. Disaster-data guide
An above-average declaration count records past federal responses; it does not predict the next event. Current warnings come from the National Weather Service and local emergency officials.
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.