Sullivan County, Missouri

County storm and disaster record · FIPS 29211 · population 5,947 · 648 sq mi

NOAA's Storm Events Database holds 289 records for Sullivan County, Missouri from 1950 through June 30, 2026, on 215 days; the most frequent are hail reports (86 records). The deadliest single record is the May 13, 2009 tornado: 1 death and $34,000 in damage in 2025 dollars. FEMA has issued 25 declarations naming the county since 1973, 23 of them for natural hazards; the latest for a natural hazard was “Severe Storms, Straight-Line Winds, Tornadoes, and Flooding” on August 3, 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
289on 215 days, 1950 to June 30, 2026
Deaths recorded
10 injuries
Damage, 2025 dollars
$2.3Mas filed (scale steps before 1993)
Tornadoes
9strongest EF1
FEMA declarations
25latest 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 Sullivan County most?

The most frequent records are hail reports: 86 since 1969. 51% of its hail reports since 1969 fell in May and June. The rank column places the county among Missouri's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Sullivan County: records by hazard, 1950 to June 30, 2026
HazardRecordsDaysFirst, lastKilledInjuredDamageRank in state
Hail 86 56 1969-2026 0 0 $4K 111 of 114
Severe thunderstorm wind 76 58 1956-2026 0 0 $225K 111 of 114
Winter storms 50 50 1997-2026 0 0 $1.4M 80 of 114
Drought 22 21 2000-2023 0 0 – 65 of 114
Heat 14 14 1999-2023 0 0 – 71 of 114
Floods 13 11 1996-2020 0 0 $158K 113 of 114
Extreme cold 12 12 1997-2025 0 0 – 38 of 114
Tornadoes 9 8 1964-2018 1 0 $483K 114 of 114
Fog, smoke and funnel clouds 5 2 2010-2014 0 0 – 33 of 114
Heavy rain 1 1 2008-2008 0 0 – 88 of 114
High wind and dust storms 1 1 2021-2021 0 0 – 108 of 114

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 Sullivan County had?

NOAA records 9 tornadoes in Sullivan County from 1964 to 2018, the strongest rated EF1, with 1 death 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 12 tornadoes whose track touched Sullivan County since 1950 (NOAA's county records number 9: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 1 person.

The deadliest and strongest tornadoes that touched Sullivan County, whole tracks
DateTornadoRatingPathKilled
2009-05-13 16:10, as SPC files itMilanEF14.35 mi1

Map of the strongest tornado tracks in Missouri.

Every tornado record filed for Sullivan County (9)
Every tornado recorded in Sullivan County, newest first
DatePlaceCharacterKilledInjuredDamage
2018-10-08 Judson, Sullivan County EF0 0.82 mi x 25 yd 0 0 –
2010-07-19 Harris, Sullivan County EF0 0.01 mi x 25 yd 0 0 $14K
2010-07-19 Milan, Sullivan County EF0 0.1 mi x 25 yd 0 0 $541
2009-05-13 Milan, Sullivan County EF1 4.35 mi x 100 yd 1 0 $34K
2008-07-21 Winigan, Sullivan County EF0 4.44 mi x 25 yd 0 0 –
2008-06-12 Pennville, Sullivan County EF0 0.21 mi x 25 yd 0 0 –
1970-09-07 Sullivan County F1 0.1 mi x 20 yd 0 0 $25K step
1967-01-24 Sullivan County F1 7.3 mi x 50 yd 0 0 $25K step
1964-08-20 Sullivan County F1 0.1 mi x 10 yd 0 0 $3K 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 Sullivan County?

The most recent record with damage, injuries or deaths is the May 19, 2018 thunderstorm wind ($35,000 in damage in 2025 dollars).

A mobile home was overturned near Newtown.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 760580)
The 12 most recent records kept for Sullivan County
DateRecordCharacterKilledInjuredDamage
2026-05-16 HailGreen City, Sullivan County 1.00 in hail 0 0 –
2026-05-16 HailGreen City, Sullivan County 1.00 in hail 0 0 –
2026-05-16 Thunderstorm WindOsgood, Sullivan County 52 kt wind 0 0 –
2026-01-24 Heavy SnowSullivan County · forecast zone Sullivan 0 0 –
2025-11-28 Winter StormSullivan County · forecast zone Sullivan 0 0 –
2025-08-07 Thunderstorm WindMilan, Sullivan County 56 kt wind 0 0 –
2025-08-07 Thunderstorm WindHarris, Sullivan County 52 kt wind 0 0 –
2025-08-07 Thunderstorm WindNewtown, Sullivan County 52 kt wind 0 0 –
2025-06-03 Thunderstorm WindGreen Castle, Sullivan County 52 kt wind 0 0 –
2025-06-03 Thunderstorm WindCora, Sullivan County 52 kt wind 0 0 –
2025-02-18 Extreme Cold/Wind ChillSullivan County · forecast zone Sullivan 0 0 –
2024-05-26 HailMilan, Sullivan County 2.00 in hail 0 0 –

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 Sullivan County, most deaths first
DateRecordCharacterKilledInjuredDamage
2009-05-13 TornadoMilan, Sullivan County An EF1 tornado touched down at 1610 CST, about two miles north-northeast of Milan. The tornado proceeded east-northeast, and lifted about three and a half miles south-southeast of Boynton, at 1635 CST. The tornado destroyed a mobile home and killed a female occupant. Numerous trees were uprooted or damaged. EF1 4.35 mi x 100 yd 1 0 $34K
The costliest records in Sullivan County since 1993, damage in 2025 dollars
DateRecordCharacterKilledInjuredDamage
1997-04-10 Heavy SnowSullivan County · forecast zone Sullivan 0 0 $1.4M
2004-10-29 Thunderstorm WindMilan, Sullivan County 65 kt wind 0 0 $62K
2018-05-19 Thunderstorm WindNewtown, Sullivan County 70 kt wind 0 0 $35K
2009-05-13 TornadoMilan, Sullivan County EF1 4.35 mi x 100 yd 1 0 $34K
2010-06-01 Thunderstorm WindMilan, Sullivan County 70 kt wind 0 0 $34K
2010-07-19 TornadoHarris, Sullivan County EF0 0.01 mi x 25 yd 0 0 $14K
2008-07-27 HailPollock, Sullivan County 4.50 in hail 0 0 $4K
2010-07-19 TornadoMilan, Sullivan County EF0 0.1 mi x 25 yd 0 0 $541

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 $25K, in the dollars of the day) holds: January 24, 1967 (tornado, Sullivan County); September 7, 1970 (tornado, Sullivan 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 Sullivan 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).

Sullivan County: records per decade (the 2020s to June 30, 2026)
Hazard1950s1960s1970s1980s1990s2000s2010s2020-26
Hail01056323111
Severe thunderstorm wind2356325257
Winter storms––––221216
Drought––––01165
Heat––––11111
Floods––––1921

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

What time of year?

51% of its hail reports since 1969 fell in May and June. The two busiest months are in violet.

The values, month by month

Jan 20 · Feb 20 · Mar 18 · Apr 25 · May 37 · Jun 45 · Jul 40 · Aug 34 · Sep 18 · Oct 10 · Nov 6 · Dec 16 (records).

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

Federal disaster declarations for Sullivan County

FEMA's register lists 25 declarations that include Sullivan County: 19 major disasters, 6 emergencies and 0 fire management assistance declarations. Most were for severe storm (16) and severe ice storm (4).

Declarations including Sullivan County, newest first
DeclaredNumberTypeTitle
2026-08-03DR-4929Severe StormSevere Storms, Straight-Line Winds, Tornadoes, and Flooding
2020-03-26DR-4490BiologicalCovid-19 Pandemic
2020-03-13EM-3482BiologicalCovid-19
2019-07-09DR-4451Severe StormSevere Storms, Tornadoes, and Flooding
2015-08-07DR-4238Severe StormSevere Storms, Tornadoes, Straight-Line Winds, and Flooding
2014-10-31DR-4200Severe StormSevere Storms, Tornadoes, Straight-Line Winds, and Flooding
2013-07-18DR-4130Severe StormSevere Storms, Straight-Line Winds, Tornadoes, and Flooding
2011-03-23DR-1961Severe StormSevere Winter Storm and Snowstorm
2011-02-03EM-3317Severe StormSevere Winter Storm
2010-08-17DR-1934Severe StormSevere Storms, Flooding, and Tornadoes
2009-06-19DR-1847Severe StormSevere Storms, Tornadoes, and Flooding
2009-01-30EM-3303Severe Ice StormSevere Winter Storm
2008-11-13DR-1809Severe StormSevere Storms, Flooding, and A Tornado
2008-06-25DR-1773Severe StormSevere Storms and Flooding
2007-12-27DR-1736Severe Ice StormSevere Winter Storms
2007-12-12EM-3281Severe Ice StormSevere Winter Storms
2007-06-11DR-1708Severe StormSevere Storms and Flooding
2005-09-10EM-3232HurricaneHurricane Katrina Evacuation
2004-06-11DR-1524Severe StormSevere Storms, Tornadoes, and Flooding
2002-05-06DR-1412Severe StormSevere Storms, Tornadoes and Flooding
2002-02-06DR-1403Severe Ice StormSevere Winter Ice Storm
1995-06-02DR-1054Severe StormSevere Storms, Tornadoes, Hail, Flooding
1993-07-09DR-995FloodSevere Storms & Flooding
1976-09-24EM-3017DroughtDrought
1973-04-19DR-372Severe StormHeavy Rains, Tornadoes & Flooding

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 Sullivan County had?

NOAA's Storm Events Database holds 13 flood or flash flood records for Sullivan County from 1996 to 2020, on 11 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Sullivan County ranks 2756th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $329 on 2 claims filed in Sullivan County; the most in one year was 1 in 1982. Claims count insured losses only: uninsured flood damage is not in this file.

The values, year by year

1982: 1 · 1996: 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 Sullivan County

FEMA's National Risk Index rates Sullivan County Very Low overall, with an expected annual loss of $4.4 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 Sullivan County (December 2025 release), by FEMA's rating, then score
HazardRisk ratingExpected annual lossModeled frequency
DroughtRelatively Moderate$488K14 modeled event-days a year
LandslideRelatively Low$17Konce in about 2 years (modeled)
TornadoRelatively Low$1.0Monce in about 3 years (modeled)
Heat WaveRelatively Low$295K8.1 modeled event-days a year
HailRelatively Low$175K3.7 a year (modeled)
Cold WaveRelatively Low$611K4.6 a year (modeled)
LightningRelatively Low$85K47 a year (modeled)
Strong WindRelatively Low$194K3.2 a year (modeled)

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

Counties that share a border with Sullivan County

  1. Grundy County 499
  2. Adair County 406
  3. Linn County 353
  4. Sullivan County 289
  5. Mercer County 287
  6. Putnam County 265

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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