PlainHazard

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The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

State profile · FEMA + NOAA + National Risk Index

Ohio Natural Disasters

Ohio's federal declaration record sits near the middle of the state distribution. 60 FEMA disaster declarations are on record, led by severe storm, with $969.9M in combined property and crop damage. A moderate count like this can still mask a single catastrophic year rather than a steady annual pattern. NOAA storm event data shows 16,184 recorded weather events resulting in 71 fatalities, a toll that informs where the state directs disaster-preparedness resources.

60
FEMA declarations
16,184
NOAA storm events
71
Storm fatalities
$969.9M
Property + crop damage

The Ohio risk picture

3 of Ohio's 88 counties, 3%, carry a FEMA "high-risk" National Risk Index rating, with riverine flooding the single largest driver of expected annual loss statewide. Ohio has 52 Major Disaster (DR) declarations; FEMA authorizes Individual Assistance, Public Assistance, or both separately for each declaration. NOAA-tracked storms have caused 426 injuries statewide.

3%
of counties rated high-risk by FEMA National Risk Index
60
FEMA disaster declarations on record
$969.9M
in tracked property + crop damage
28,011
NFIP flood insurance claims filed statewide

FEMA's National Risk Index and NOAA's Storm Events Database measure different things: modeled long-run risk vs. observed severe-weather events. Storm Events is a reported dataset, so its counts track what was observed and logged, not every event that occurred, and reporting is denser where more people live. See the methodology for how they relate.

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FEMA declarations

60

Below median

Major Disaster share

87%

Mostly major

NOAA storm events

16,184

Observed severe-weather records

How does Ohio compare?

Ohio vs. every U.S. state

FEMA disaster declarations, all-time

60 36th percentile higher than 36% of 59 states and territories

This state 0 400 all U.S. states and territories FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more states and territories. 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

Do more storms mean more federal disasters?

Ohio sits at the 31st percentile of FEMA declaration volume and the 65th percentile of NOAA storm-event volume among 55 states and territories, those two ranks are not interchangeable.

FEMA declaration rank vs NOAA storm-event rank

Each point is a state or territory plotted by within-sample rank percentile (0–100) on FEMA OpenFEMA declarations (x) and NOAA Storm Events (y). Crosshairs mark the mid-rank (50th). Illinois is the clearest threshold-gap example in this release. Source: FEMA OpenFEMA Disaster Declarations Summaries v2 + NOAA Storm Events Database. 2×2 strategic matrix plotting 30 entities by FEMA declarations (percentile) (X) and NOAA storm events (percentile) (Y), with a crosshair dividing the plot into four quadrants. Busy on both ledgersMany storms · fewer declarationsDeclaration-heavy · fewer stormsQuiet on both 406080100120 020406080100120 FEMA declarations (percentile) NOAA storm events (percentile) Signature insight
Each point is a state or territory plotted by within-sample rank percentile (0–100) on FEMA OpenFEMA declarations (x) and NOAA Storm Events (y). Crosshairs mark the mid-rank (50th). Illinois is the clearest threshold-gap example in this release. Source: FEMA OpenFEMA Disaster Declarations Summaries v2 + NOAA Storm Events Database.
Read the chart, every state as text

Percentiles are within this release's state/territory sample. Raw counts are the underlying FEMA and NOAA totals.

StateFEMA declsFEMA %ileNOAA stormsNOAA %ile
California3969823,69493
Texas3899653,30998
Oklahoma2589523,89695
Washington215934,40822
Florida1889112,83855
Oregon169893,69520
New Mexico1268710,97445
Arizona120859,54138
New York1188421,65382
Montana1128213,57656
Colorado1117818,34073
Louisiana1117811,20447
Nevada110764,53424
Alabama1027514,58364
Kentucky987119,94778
Mississippi987114,10062
Tennessee976916,64569
South Dakota966722,75987
Alaska94642,68315
Kansas946425,11596
Arkansas876013,63758
Nebraska876020,13680
Missouri865822,95289
North Carolina855616,36767
West Virginia845512,02649
Georgia815116,67671
Minnesota815119,10975
Iowa784921,88384
Virginia774723,58491
North Dakota754510,81844
Hawaii72446,20031
Maine71424,78127
Illinois684022,08885
Pennsylvania643819,42776
New Hampshire63362,54711
Vermont62353,44918
Idaho60315,14229
Ohio603116,18465
Massachusetts59256,78133
New Jersey59258,21835
Utah59254,57825
Wisconsin562413,80760
Indiana542212,68753
Puerto Rico51182,94416
South Carolina511810,52042
Michigan46169,05236
Wyoming451512,49451
Connecticut43132,62213
Maryland381110,29040
U.S. Virgin Islands339880
Rhode Island3179247
Delaware2651,4759
Guam2542582
District of Columbia2424525
American Samoa1702924

What shapes Ohio's record?

FEMA declaration types in Ohio

Wider bars = more declarations of that incident type

declarations

What this shows Severe Storm leads Ohio's FEMA declaration mix with 24 records among the types shown.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-03

NOAA storm events by year

Reported severe-weather events in Ohio, 2015–2025 catalog window.

5001,0001,5002,0002,500 20152016201720182019202020212022202320242025 1,616
NOAA Storm Events Database event counts for Ohio. Focus a year mark for its exact count.

Peak year in this series: 2019 (2,279 events). Counts are reported events, not a complete census.

65 /100

Historical Activity Index

High historical activity

Ohio · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite mixing OpenFEMA declaration totals (1953–present) with NOAA Storm Events (2015–2025), different windows and event definitions, disclosed weights on the methodology page . 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
10/30

60 OpenFEMA declarations, full ingest window (0.7x state average)

NOAA Storm Events (2015–2025) High
18/25

16184 NOAA storm events in the 2015–2025 extract (1.5x median state)

NOAA Damage (2015–2025) High
17/25

Recorded NOAA property+crop damage in the 2015–2025 extract (1.7x median state)

Hazard Diversity Very High
20/20

8 different disaster types declared in Ohio

What does Ohio's hazard record show?

Flood exposure & where to dig deeper

Flood exposure is quantified separately through the National Flood Insurance Program. Policyholders across 88Ohio counties have filed 28,011 NFIP claims totaling $369.2M, or an average of $13.2K per claim. NFIP data captures only insured flood losses, so uninsured flood damage and storm-surge losses outside mapped high-risk zones remain invisible in this figure. The highest-Expected-Annual-Loss hazard across the state is Riverine Flooding, estimated at $1.9B annually. Drill into individual counties for localized risk, read FEMA's hazard-specific briefings, and review insurance and flood-zone designations, state-level averages can mask sharp county-to-county differences in exposure and resilience.

NOAA storm events & FEMA National Risk Index

NOAA's Storm Events Database adds the near-term severe-weather lens. Between 2015 and 2025, Ohio recorded 16,184 individual storm events, causing 71 fatalities and 426 injuries, with combined property and crop damage estimated at $969.9M. The most frequent event types in the state are Thunderstorm Wind (6,938 events), Winter Weather (2,101 events), Hail (1,749 events). Across the state's 88 analyzed counties, FEMA's own National Risk Index flags 3 as high-risk, with an average county Risk Index score (FEMA's own formula, distinct from our Historical Activity tool below) of 55.0/100.

What this count is, and is not. Storm Events is a reported database: NOAA compiles it from National Weather Service offices, trained spotters, law enforcement, and the public. It is a record of what was observed and logged, not a complete census of severe weather. Densely populated areas report more events than sparsely populated ones with similar meteorological exposure, and detection has improved over time, so an event count is not a like-for-like measure of hazard between places or across decades. Damage figures are field estimates, not audited losses. See methodology.

FEMA disaster declarations

Ohio (OH) has a moderate level of federal declaration activity, with 60 FEMA declaration records, including 52 Major Disaster declarations (DR). A DR may authorize Individual Assistance, Public Assistance, or both; those program approvals are not implied by the DR count. The dominant declaration type is Severe Storm, followed by Flood (17), Tornado (8), Snowstorm (4). Declaration counts at the state level reflect the cumulative federal footprint: large multi-county events count once per state, but repeat hazard patterns across decades are visible in the breakdown below.

Disaster Types in Ohio

Severe Storm 24
Flood 17
Tornado 8
Snowstorm 4
Biological 2
Hurricane 2
Other 2
Mud/Landslide 1

Storm Events by Type

NOAA storm event data for Ohio (2015-2025).

Event Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 6,938 6 39 $60.4M
Winter Weather 2,101 7 42 $3.3M
Hail 1,749 0 0 $673.5K
Flood 1,607 9 0 $84.5M
Flash Flood 1,089 9 7 $112.2M
Winter Storm 730 1 0 $17.6M
High Wind 451 3 1 $7.0M
Tornado 429 5 251 $662.2M
Extreme Cold/Wind Chill 221 7 0 $223.0K
Strong Wind 182 0 2 $1.4M
Heavy Snow 135 0 0 $1.7M
Lake-Effect Snow 105 1 5 $11.8M
Drought 99 0 0 $0
Excessive Heat 74 0 0 $0
Cold/Wind Chill 71 8 0 $0
Heavy Rain 60 1 0 $23.0K
Ice Storm 47 0 0 $150.0K
Lakeshore Flood 37 0 0 $2.7M
Lightning 20 6 6 $128.0K
Funnel Cloud 17 0 0 $0

Storm Events by Year

Year Events Fatalities Injuries Property Damage
2025 1,616 2 3 $7.3M
2024 1,461 8 48 $36.7M
2023 1,099 4 13 $28.1M
2022 1,565 9 79 $19.8M
2021 1,072 8 12 $9.4M
2020 1,820 7 6 $28.8M
2019 2,279 17 229 $691.7M
2018 1,332 6 4 $15.9M
2017 1,473 2 19 $70.0M
2016 1,051 2 4 $21.3M
2015 1,416 6 9 $37.6M

FEMA Disaster Declarations

How the 60 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download all 60 declarations as CSV . Source data is public domain; our derived presentation is CC0.

60 unique disaster declarations in Ohio.

DR# Title Type Incident Date
4777 TORNADOES DR Tornado 2024-05-02
4507 COVID-19 PANDEMIC DR Biological 2020-03-31
3457 COVID-19 EM Biological 2020-03-13
4447 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDE DR Tornado 2019-06-18
4424 SEVERE STORMS, FLOODING, AND LANDSLIDES DR Flood 2019-04-08
4360 SEVERE STORMS, LANDSLIDES, AND MUDSLIDES DR Flood 2018-04-17
4098 SEVERE STORMS AND FLOODING DUE TO THE REMNANTS OF HURRICANE SANDY DR Hurricane 2013-01-03
4077 SEVERE STORMS AND STRAIGHT-LINE WINDS DR Severe Storm 2012-08-20
3346 SEVERE STORMS EM Severe Storm 2012-06-30
4002 SEVERE STORMS AND FLOODING DR Severe Storm 2011-07-13
1805 SEVERE WIND STORM ASSOCIATED WITH TROPICAL DEPRESSION IKE DR Severe Storm 2008-10-24
3286 RECORD SNOW AND NEAR RECORD SNOW EM Snowstorm 2008-04-24
1720 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2007-08-27
1656 SEVERE STORMS, STRAIGHT LINE WINDS, AND FLOODING DR Severe Storm 2006-08-01
1651 SEVERE STORMS, TORNADOES, STRAIGHT LINE WINDS, AND FLOODING DR Severe Storm 2006-07-02
3250 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-13
1580 SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES DR Severe Storm 2005-02-15
3198 SNOW EM Snowstorm 2005-01-11
1556 SEVERE STORMS AND FLOODING DR Severe Storm 2004-09-19
1519 SEVERE STORMS AND FLOODING DR Severe Storm 2004-06-03
1507 SEVERE STORMS, FLOODING, MUDSLIDES, AND LANDSLIDES DR Severe Storm 2004-01-26
3187 POWER OUTAGE EM Other 2003-09-23
1484 TORNADOES, FLOODING, SEVERE STORMS, AND HIGH WINDS DR Tornado 2003-08-01
1478 SEVERE STORMS AND FLOODING DR Severe Storm 2003-07-15
1453 SEVERE WINTER STORM AND RECORD/NEAR RECORD SNOW DR Severe Storm 2003-03-14
1444 SEVERE STORMS AND TORNADOES DR Severe Storm 2002-11-18
1390 SEVERE STORMS AND FLOODING DR Severe Storm 2001-08-27
1343 SEVERE STORMS AND TORNADO DR Severe Storm 2000-09-26
1339 SEVERE STORMS AND FLOODING DR Severe Storm 2000-08-21
1321 SEVERE STORMS AND FLOODING DR Severe Storm 2000-03-07
1227 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 1998-06-30
1164 SEVERE STORMS AND FLOODING DR Severe Storm 1997-03-04
1122 FLOODING DR Flood 1996-06-24
1097 SEVERE STORMS AND FLOODING DR Flood 1996-01-27
1065 SEVERE STORMS AND FLOODING DR Severe Storm 1995-08-25
951 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1992-08-04
870 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1990-06-06
831 SEVERE STORMS & FLOODING DR Flood 1989-06-10
796 SEVERE STORMS & FLOODING DR Flood 1987-07-17
738 SEVERE STORMS & TORNADOES DR Tornado 1985-06-03
653 SEVERE STORMS & FLOODING DR Flood 1982-03-26
642 SEVERE STORMS, FLOODING & TORNADOES DR Severe Storm 1981-06-30
630 SEVERE STORMS & FLOODING DR Flood 1980-08-23
3055 BLIZZARDS & SNOWSTORMS EM Snowstorm 1978-01-26
3029 SNOWSTORMS EM Snowstorm 1977-02-02
480 WINDS, TORNADOES, HEAVY RAINS & FLOODING DR Flood 1975-09-11
445 HEAVY RAINS & FLOODING DR Flood 1974-07-11
436 SEVERE STORMS & FLOODING DR Flood 1974-05-31
421 TORNADOES DR Tornado 1974-04-04
390 MUDSLIDES DR Mud/Landslide 1973-06-04

Showing 50 of 60 declarations.

FEMA National Risk Index

Composite natural hazard risk scores for Ohio counties based on FEMA's National Risk Index.

Avg County Risk Score

55.0/100

High Risk Counties

3

of 88 counties

Top Hazard by EAL

Riverine Flooding

$1.9B annual loss est.

Top 5 Hazards by Expected Annual Loss

#1

Riverine Flooding

$1.9B EAL

#2

Tornado

$366.5M EAL

#3

Cold Wave

$225.6M EAL

#4

Heat Wave

$119.0M EAL

#5

Strong Wind

$100.5M EAL

Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) EAL = Expected Annual Loss. Data: hazards.fema.gov/nri

NFIP Flood Insurance Claims

National Flood Insurance Program claims across Ohio from FEMA NFIP data.

Total Claims

28,011

Total Paid

$369.2M

Avg Per Claim

$13.2K

Counties With Claims

88

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

Counties in Ohio

88 counties with FEMA disaster data.

# County DisastersMajor
1 Belmont County 22 17
2 Jefferson County 22 17
3 Monroe County 22 18
4 Washington County 20 15
5 Franklin County 20 14
6 Licking County 20 15
7 Athens County 19 14
8 Brown County 19 13
9 Lorain County 19 13
10 Perry County 19 14
11 Adams County 19 15
12 Cuyahoga County 19 14
13 Columbiana County 18 13
14 Harrison County 18 13
15 Scioto County 18 14
16 Hocking County 18 14
17 Clermont County 18 12
18 Richland County 18 11
19 Noble County 18 13
20 Hamilton County 18 13
21 Meigs County 18 14
22 Morgan County 17 13
23 Gallia County 17 13
24 Pike County 17 13
25 Guernsey County 17 13
26 Muskingum County 17 12
27 Greene County 16 9
28 Morrow County 16 10
29 Lawrence County 16 12
30 Lucas County 16 10
31 Ross County 16 11
32 Jackson County 16 12
33 Coshocton County 16 11
34 Vinton County 16 12
35 Pickaway County 15 10
36 Ashtabula County 15 8
37 Lake County 15 9
38 Shelby County 15 9
39 Miami County 15 9
40 Crawford County 15 8
41 Delaware County 15 9
42 Hancock County 14 9
43 Logan County 14 9
44 Butler County 14 9
45 Medina County 14 9
46 Summit County 14 9
47 Huron County 14 6
48 Erie County 14 8
49 Mercer County 14 10
50 Union County 13 7
51 Sandusky County 13 8
52 Putnam County 13 8
53 Ottawa County 13 9
54 Van Wert County 13 8
55 Geauga County 13 7
56 Paulding County 13 8
57 Tuscarawas County 13 8
58 Knox County 13 7
59 Warren County 13 8
60 Montgomery County 13 8
61 Darke County 13 7
62 Fairfield County 13 8
63 Auglaize County 13 9
64 Seneca County 13 7
65 Mahoning County 12 8
66 Wyandot County 12 6
67 Hardin County 12 5
68 Portage County 12 6
69 Holmes County 12 7
70 Ashland County 12 6
71 Marion County 12 5
72 Madison County 12 6
73 Stark County 12 7
74 Trumbull County 12 7
75 Highland County 12 7
76 Fayette County 11 6
77 Champaign County 11 6
78 Preble County 11 5
79 Carroll County 11 6
80 Clark County 11 6
81 Henry County 10 5
82 Wayne County 10 5
83 Wood County 10 5
84 Allen County 10 6
85 Clinton County 10 4
86 Fulton County 9 5
87 Defiance County 8 3
88 Williams County 8 4

Highest-risk counties by FEMA National Risk Index

Declaration counts above measure past federal action; FEMA's NRI is a composite of Expected Annual Loss, social vulnerability, and community resilience. By that separate measure the highest-risk counties in Ohio are Franklin (98.1), Cuyahoga (98.0), Hamilton (96.3), Montgomery (92.7), Lucas (92.4). Compare any county's recorded history with the Historical Activity tool.

All 88 counties in Ohio are listed above.

Disaster Preparedness Guides

Learn more about natural disaster risk, preparedness, and data interpretation.

Frequently Asked Questions

What natural disasters affect Ohio?
Ohio is affected by severe storm, flood, tornado, snowstorm. The most common disaster type is Severe Storm, based on 60 FEMA disaster declarations on record.
How many FEMA disaster declarations has Ohio had?
Ohio has received 60 FEMA disaster declarations, including 52 major disaster declarations. The declaration history covers several disaster types, including Severe Storm (24), Flood (17), Tornado (8).
What severe weather events are most common in Ohio?
The most common severe weather events in Ohio include thunderstorm wind (6,938 events), winter weather (2,101 events), hail (1,749 events). These NOAA storm events recorded from 2015 to 2025 have caused 71 fatalities and $969.9M in property and crop damage.
How active is Ohio's federal disaster declaration record?
Ohio has a moderate level of historical federal declaration activity, based on 60 FEMA declaration records. This band is not a future-risk forecast. Separately, NOAA storm events from 2015-2025 record 71 fatalities and 426 injuries. NOAA property and crop damage records total $969.9M.
How many flood insurance claims has Ohio had?
Ohio has 28,011 National Flood Insurance Program (NFIP) claims with $369.2M total paid out. Claims average $13.2K, with 88 counties reporting flood insurance claims.
Which counties in Ohio have the most disaster declarations?
Among 88 counties in Ohio, those with the most FEMA declaration records include Belmont (22 declarations), Jefferson (22 declarations), Monroe (22 declarations). County-by-county figures show where the state's federal declaration history concentrates.

Source: FEMA OpenFEMA Disaster Declarations, NOAA Storm Events Database (2015-2025) FEMA OpenFEMA Disaster Declarations, NOAA Storm Events Database (2015-2025) For informational purposes only

What this means for Ohio

Belmont alone accounts for 37% of Ohio's FEMA disaster declarations, out of 88 counties tracked statewide.

  • The declaration record is uneven within the state: Belmont and Jefferson carry the most FEMA declarations. Browse counties
  • See how Ohio ranks against other states for disaster frequency and damage. State rankings
  • Learn what FEMA declarations, NRI risk scores, and damage figures do and don't tell you. Disaster-data guide

Historical declaration counts and damage totals describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

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.