Union County, Indiana

County storm and disaster record · FIPS 18161 · population 7,087 · 161 sq mi

NOAA's Storm Events Database holds 259 records for Union County, Indiana from 1950 through June 30, 2026, on 230 days; the most frequent are severe thunderstorm wind events (80 records). The deadliest single record is the July 19, 1998 thunderstorm wind: 2 deaths, 6 injuries and $45,000 in damage in 2025 dollars. FEMA has issued 17 declarations naming the county since 1991, 15 of them for natural hazards; the latest for a natural hazard was “Severe Storms, Straight-Line Winds, Tornadoes, and Flooding” on August 25, 2026.

The record, 1950 to 2026

Storm records filed for the county each year (2026 to June 30, 2026). Before 1996 NOAA recorded only tornadoes (from 1950), thunderstorm wind and hail (from 1955).

  • recorded, no damage figure
  • under $100,000
  • $100,000 or more
  • $1 million or more
  • $10 million or more, or a death
  • $100 million or more, or 10 deaths
  • a year's colour: its recorded damage or deaths
  • a year with a death
  • 1955: wind and hail recorded from 1955
  • 1996: all 48 event types from 1996
Storm records
259on 230 days, 1950 to June 30, 2026
Deaths recorded
49 injuries
Damage, 2025 dollars
$12Mas filed (scale steps before 1993)
Tornadoes
3strongest F2
FEMA declarations
17latest 2026

Source: NOAA NCEI Storm Events Database, records through June 30, 2026 (file revision 20260918); damage converted to 2025 dollars with the BLS CPI-U. Search the record at NCEI. BLS consumer price index.

What hazards hit Union County most?

The most frequent records are severe thunderstorm wind events: 80 since 1971. 49% of its severe thunderstorm wind events since 1971 fell in June and July. The rank column places the county among Indiana's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Union County: records by hazard, 1950 to June 30, 2026
HazardRecordsDaysFirst, lastKilledInjuredDamageRank in state
Severe thunderstorm wind 80 73 1971-2025 2 9 $741K 9 of 91
Winter storms 80 80 1996-2026 0 0 $282K 2 of 91
Floods 49 38 1996-2024 2 0 $470K 16 of 91
Hail 27 24 1962-2019 0 0 $330K 33 of 91
High wind and dust storms 10 10 2000-2024 0 0 $1.2M 9 of 91
Heat 5 5 1999-2019 0 0 – 8 of 91
Extreme cold 4 4 1996-2022 0 0 $920K 15 of 91
Tornadoes 3 3 1955-2019 0 0 $8.1M 91 of 91
Heavy rain 1 1 2013-2013 0 0 – 25 of 91

Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.

How many tornadoes has Union County had?

NOAA records 3 tornadoes in Union County from 1955 to 2019, the strongest rated F2, with 0 deaths and 0 injuries recorded in the county. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.

Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 4 tornadoes whose track touched Union County since 1950 (NOAA's county records number 3: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 0 people.

The deadliest and strongest tornadoes that touched Union County, whole tracks
DateTornadoRatingPathKilled
1961-04-25 14:27, as SPC files itShelbyville to ConnersvilleCrossed IN, OHF463.1 mi0

Map of the strongest tornado tracks in Indiana.

Every tornado record filed for Union County (3)
Every tornado recorded in Union County, newest first
DatePlaceCharacterKilledInjuredDamage
2019-06-15 Clifton, Union County EF1 2.11 mi x 35 yd 0 0 $40K
1992-11-22 Union County F2 11 mi x 200 yd 0 0 $2.5M step
1955-03-11 Union County F2 1.3 mi x 847 yd 0 0 $250K step

A damage figure marked "step" is a record from before 1993: NOAA then filed damage by category, and the figure is the category as entered, in the dollars of that year, not an estimate of the loss.

Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.

When was the last damaging storm in Union County?

The most recent record with damage, injuries or deaths is the April 29, 2025 thunderstorm wind ($1,000 in damage in 2025 dollars).

The 12 most recent records kept for Union County
DateRecordCharacterKilledInjuredDamage
2026-01-24 Winter StormUnion County · forecast zone Union 0 0 –
2025-12-13 Winter WeatherUnion County · forecast zone Union 0 0 –
2025-12-01 Winter WeatherUnion County · forecast zone Union 0 0 –
2025-04-29 Thunderstorm WindCollege Corner, Union County 50 kt wind 0 0 $1K
2025-04-02 Thunderstorm WindLiberty, Union County 50 kt wind 0 0 $1K
2025-01-10 Winter WeatherUnion County · forecast zone Union 0 0 –
2025-01-05 Winter StormUnion County · forecast zone Union 0 0 –
2023-07-02 Thunderstorm WindLiberty, Union County 50 kt wind 0 3 $10K
2019-06-15 TornadoClifton, Union County EF1 2.11 mi x 35 yd 0 0 $40K
2015-08-03 HailDunlapsville, Union County 2.00 in hail 0 0 –
2011-05-23 Thunderstorm WindLiberty, Union County 70 kt wind 0 0 $85K
2008-09-14 High WindUnion County · forecast zone Union 52 kt wind 0 0 $1.2M

Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.

The deadliest and costliest records

Records with deaths or injuries in Union County, most deaths first
DateRecordCharacterKilledInjuredDamage
1998-07-19 Thunderstorm WindLiberty, Union County Numerous trees downed across the county, one of which fell across a tent, injuring six campers. Also, two people were killed when a boat overturned in the storm on Brookville Lake. 2 6 $45K
1999-01-22 FloodUnion County · forecast zone Union 2 0 –
2023-07-02 Thunderstorm WindLiberty, Union County Several trees were downed in and around Whitewater Memorial State Park. One tree fell onto a tent, resulting in 3 non-life threatening injuries. 50 kt wind 0 3 $10K
The costliest records in Union County since 1993, damage in 2025 dollars
DateRecordCharacterKilledInjuredDamage
2008-09-14 High WindUnion County · forecast zone Union 52 kt wind 0 0 $1.2M
2011-05-23 Thunderstorm WindLiberty, Union County 70 kt wind 0 0 $85K
1998-07-19 Thunderstorm WindLiberty, Union County 2 6 $45K
2019-06-15 TornadoClifton, Union County EF1 2.11 mi x 35 yd 0 0 $40K
2023-07-02 Thunderstorm WindLiberty, Union County 50 kt wind 0 3 $10K

Before 1993 NOAA filed damage by category, not amount, so the list above starts in 1993. The highest category filed here before then (entered as $2.5M, in the dollars of the day) holds: November 22, 1992 (tornado, Union County).

Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.

Is it getting more frequent?

Records per decade for Union County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).

Union County: records per decade (the 2020s to June 30, 2026)
Hazard1950s1960s1970s1980s1990s2000s2010s2020-26
Severe thunderstorm wind003516271712
Winter storms––––8222723
Floods––––821164
Hail02048760
High wind and dust storms––––0613

Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).

What time of year?

49% of its severe thunderstorm wind events since 1971 fell in June and July. The two busiest months are in violet.

The values, month by month

Jan 29 · Feb 32 · Mar 22 · Apr 22 · May 25 · Jun 40 · Jul 35 · Aug 9 · Sep 4 · Oct 1 · Nov 10 · Dec 30 (records).

Source: NOAA NCEI Storm Events Database, records by the month they began.

Federal disaster declarations for Union County

FEMA's register lists 17 declarations that include Union County: 12 major disasters, 5 emergencies and 0 fire management assistance declarations. Most were for severe storm (8) and flood (3).

Declarations including Union County, newest first
DeclaredNumberTypeTitle
2026-08-25DR-4933FloodSevere Storms, Straight-Line Winds, Tornadoes, and Flooding
2026-08-15EM-3651FloodSevere Storms, Straight-Line Winds, Tornadoes, and Flooding
2026-01-24EM-3641Winter StormSevere Winter Storm
2020-04-03DR-4515BiologicalCovid-19 Pandemic
2020-03-13EM-3456BiologicalCovid-19
2008-09-23DR-1795Severe StormSevere Storms and Flooding
2008-06-08DR-1766Severe StormSevere Storms, Flooding, and Tornadoes
2005-09-10EM-3238HurricaneHurricane Katrina Evacuation
2005-01-21DR-1573Severe StormSevere Winter Storms and Flooding
2005-01-11EM-3197SnowstormSnow
2004-06-03DR-1520Severe StormSevere Storms, Tornadoes, and Flooding
2003-07-11DR-1476Severe StormSevere Storms, Tornadoes, and Flooding
2002-06-13DR-1418Severe StormSevere Storms, Tornadoes and Flooding
1998-07-22DR-1234Severe StormSevere Storms and Tornadoes, and Flooding
1996-07-03DR-1125Severe StormSevere Storms and Flooding
1996-04-02DR-1109FloodBlizzard of 96
1991-03-29DR-899Severe Ice StormSevere Ice Storm

Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.

How many floods has Union County had?

NOAA's Storm Events Database holds 49 flood or flash flood records for Union County from 1996 to 2024, on 38 days, with 2 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Union County ranks 2685th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $51,000 on 3 claims filed in Union County; the most in one year was 2 in 2003. Claims count insured losses only: uninsured flood damage is not in this file.

The values, year by year

2003: 2 · 2015: 1; the other years: 0.

Source: FEMA OpenFEMA NFIP Redacted Claims, as of September 8, 2026; claims by year of loss, payments in the dollars of the year paid. OpenFEMA dataset page.

FEMA's modeled risk for Union County

FEMA's National Risk Index rates Union County Very Low overall, with an expected annual loss of $4.3 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.

National Risk Index ratings for Union County (December 2025 release), by FEMA's rating, then score
HazardRisk ratingExpected annual lossModeled frequency
Strong WindRelatively Moderate$1.5M3.1 a year (modeled)
TornadoRelatively Low$617Konce in about 8 years (modeled)
LandslideVery Low$2Konce in about 18 years (modeled)
DroughtVery Low$26K1 modeled event-days a year
EarthquakeVery Low$73Konce in about 578 years (modeled)
Cold WaveVery Low$219K4.2 a year (modeled)
Ice StormVery Low$11K1 a year (modeled)
Heat WaveVery Low$31K5.4 modeled event-days a year

Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.

Counties that share a border with Union County

  1. Butler County, OH 801
  2. Wayne County 595
  3. Preble County, OH 513
  4. Franklin County 474
  5. Fayette County 358
  6. Union County 259

Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.

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