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Wisconsin · FEMA + NOAA + National Risk Index

Green County, WI

17 FEMA disaster declarations (1969-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Severe Storm.

17
FEMA declarations
12
Major disasters
46
NRI risk · Relatively Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Green County. Its 17 FEMA declarations are 38% above the Wisconsin county mean and exceed the count for 32% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 46%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 46%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
17
FEMA declarations vs 21 national county avg
36
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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How does Green County compare?

Green County vs. all counties in this dataset

FEMA disaster declarations, all-time

17 32nd percentile higher than 32% 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 · 2026-08-03

Green County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Wisconsin county average

0/100100/100Wisconsin avg59/10046.4/100
FEMA National Risk Index composite score vs. the Wisconsin county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Green County is led by Riverine Flooding (about $6.8M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Hail 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 Green County's hazard record show?

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 46.4/100 for this county (Relatively Low rating). Expected Annual Loss comes in at Relatively Low (roughly $17.8M in annualized losses). Social vulnerability (Very Low) and community resilience (Very High) both factor into how that raw exposure plays out on the ground. Among the 18 modeled hazards, Hail carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 3.6 times per year here, based on 138 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 17 entries for Green County, including 12 Major Disaster records, 38% above the Wisconsin county mean. Across the 51-year span, that works out to 0.3 declarations a year. Severe Storm leads the file with 7 entries. Declaration type records the federal action taken, not every assistance program approved.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 36 claims and $291.0K 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.

The declaration register points in the busier direction. Green County's 17 federal records stand 38% above the Wisconsin county mean of 12.3. 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.

62 /100

Historical Activity Index

High historical activity

Green County, WI · 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
12/30

17 OpenFEMA declarations, full ingest window (0.8x national county average)

County Disaster Density High
17/25

17 declarations (1.4x state county average of 12)

Major Disaster Share High
18/25

12 of 17 declarations are major disasters (71%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Green County

Historical Declaration Activity

Activity Band

High

vs. Wisconsin Avg

+38%

State avg: 12.3

vs. National Avg

-18%

National avg: 20.7

Avg Per Year

0.3

Over 51 years

FEMA NRI 8-hazard radar - Green County

Green County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 8, Tornado 48, Wildfire 8, Drought 25, Heat Wave 25, Winter Storm 48. The simple mean of these eight displayed scores is 24 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 24 8-hazard mean
Green County NRI risk profile FIPS 55045 · displayed-hazard mean 24/100
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

17

Below median

Major Disaster share

71%

Major-heavy

NRI risk score

46

Relatively Low

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

How often does each hazard strike Green 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
Hail Relatively Moderate an average of 3.6 times per year
Landslide Relatively Low roughly once every 3 years
Cold Wave Relatively Moderate an average of 5.7 times per year
Tornado Relatively Moderate roughly once every 2 years
Strong Wind Relatively Moderate an average of 4.7 times per year
Heat Wave Relatively Low 3.7 modeled event-days per year
Riverine Flooding Relatively Low an average of 1.7 times per year
Ice Storm Relatively Low roughly once every 1 years
Drought Relatively Low 7.2 modeled event-days per year
Wildfire Very Low roughly once every 5,270 years
Winter Weather Relatively Low an average of 15 times per year
Lightning Relatively Low an average of 38 times per year
Earthquake Very Low roughly once every 1,217 years
Hurricane Very Low roughly once every 135 years

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

Disaster Types

Severe Storm 7
Snowstorm 3
Flood 3
Biological 2
Hurricane 1
Drought 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Green County's record, 41% of its declarations. In FEMA's vocabulary this covers convective weather: thunderstorm straight-line winds, large hail, and the multi-day outbreaks that often carry embedded tornadoes. Activity is heaviest in spring and summer, though the season varies by region.

These events behave differently from a hurricane on paper. Damage tends to be distributed along a storm track rather than concentrated on a coastline, and a declaration typically follows an outbreak that crossed several counties over a few days, not a single point of impact. Because the qualifying threshold is the cost of uninsured public and individual losses rather than storm intensity, two similar storms can produce a declaration in one year and none in another.

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 - 12 70.6%

of all 17 declarations

Emergency - 5 29.4%

of all 17 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2011 1
2008 2
2007 1
2005 1
2004 1
2001 1
2000 1
1996 1
1993 1
1990 1
1978 1
1976 2
1969 1

Disaster Declarations

How the 17 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 17 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4520 COVID-19 PANDEMIC DR Biological 2020-04-04
3454 COVID-19 EM Biological 2020-03-13
1966 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2011-04-05
1768 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-06-14
3285 RECORD SNOW AND NEAR RECORD SNOW EM Snowstorm 2008-03-19
1719 SEVERE STORMS AND FLOODING DR Severe Storm 2007-08-26
3249 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-13
1526 SEVERE STORMS AND FLOODING DR Severe Storm 2004-06-18
3163 SNOW EM Snowstorm 2001-01-24
1332 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2000-06-24
1131 SEVERE STORMS, FLOODING AND TORNADOES DR Flood 1996-08-02
994 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1993-07-02
874 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1990-07-13
559 SEVERE STORMS, FLOODING, HAIL & TORNADOES DR Severe Storm 1978-07-07
3014 DROUGHT EM Drought 1976-06-17
496 SEVERE STORMS, ICING, WIND & FLOODING DR Flood 1976-03-23
264 SEVERE STORMS & FLOODING DR Flood 1969-07-11

Storm Events in Wisconsin

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 3,504 5 23 $45.0M
Hail 2,620 0 0 $57.8M
Winter Weather 1,939 43 152 $2.1M
Winter Storm 1,338 15 86 $2.3M
Flood 740 12 4 $115.6M

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

NFIP Flood Insurance Claims

Total Claims

36

Total Paid

$291.0K

Avg Per Claim

$8.1K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 46.4/100

Expected Annual Loss

Relatively Low

$17.8M/year

Social Vulnerability

Very Low

Community Resilience

Very High

Hazard Risk Breakdown

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

Hail is among the most expensive hazards in the model relative to how little it threatens life. It concentrates on roofs, vehicles and crops, and a single severe storm can generate an insurance loss across a metropolitan area without a single injury.

For Green County the two measures on this page point the same way: Hail is the county's highest-rated modeled hazard (Relatively Moderate), and Severe Storm declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.

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

Green County's closest FEMA peer: Dougherty County, GA

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

Further reading for this county

Most disaster-prone counties

With 17 FEMA declarations, Green 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 Green County?
The most common disaster type in Green County is Severe Storm, with 7 declarations. Other disaster types include Snowstorm (3), Flood (3), Biological (2).
How does Green County's FEMA declaration record compare with the Wisconsin average?
FEMA lists 17 declaration records for Green County. That is 38% above the Wisconsin county mean of 12.3. Its count is also 18% 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 Green County received?
Green County has received 12 major disaster declarations, representing 71% of all 17 disaster declarations.
How many flood insurance claims has Green County filed?
Green County has 36 National Flood Insurance Program (NFIP) claims totaling $291.0K in payments, with an average of $8.1K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Green County?
No. In Green County, Hail has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $6.8M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Green County?
The most active year for disaster declarations in Green County was 1976, with 2 declarations. The county has FEMA disaster data spanning 1969 to 2020.
What is the FEMA National Risk Index score for Green County?
According to the FEMA National Risk Index, Green County, Wisconsin has an overall risk score of 46.4 out of 100 (Relatively Low). The county's social vulnerability rating is Very Low and community resilience is Very High. The Expected Annual Loss (EAL) score is Relatively Low, representing $17.8M in annualized losses.
Which natural hazard poses the greatest risk to Green County?
Based on FEMA NRI data, the highest-risk natural hazard in Green County as of the latest release is Hail (risk rating: Relatively Moderate). Other significant hazards include Landslide (Relatively Low) and Cold Wave (Relatively Moderate). FEMA's modeled event frequency puts hail here at an average of 3.6 times per year, drawn from 138 historical events on record. The underlying methodology weighs historical event frequency against 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 Green County

Green County, WI has 17 federal declaration records, 38% more than the Wisconsin county mean of 12; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 12 of 17 records; the category describes past federal action, not the next likely hazard. Wisconsin overview
  • The state benchmark and national rank point the same way: this count tops the Wisconsin mean and the totals for 32% of 3,266 U.S. counties. Most-disaster rankings
  • A short NFIP claims file cannot establish low flood exposure; the data guide explains the limits of each federal measure. 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.

All federal data sources used on this page
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.