Morgan County, Illinois

What hazards hit Morgan County most?

The most frequent records are severe thunderstorm wind events: 176 since 1955. 48% of its severe thunderstorm wind events since 1955 fell in May and June. The rank column places the county among Illinois's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

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 Morgan County had?

NOAA records 41 tornadoes in Morgan County from 1957 to 2025, the strongest rated F3, with 0 deaths and 11 injuries recorded in the county. That is 41st of 102 Illinois counties by days with tornadoes per 1,000 square miles since 1950. 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 43 tornadoes whose track touched Morgan County since 1950 (NOAA's county records number 41: 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, 0 of them in Morgan County.

Map of the strongest tornado tracks in Illinois.

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 Morgan County?

The most recent record with damage, injuries or deaths is the June 18, 2025 tornado (1 injury).

Sentinel satellite data indicated a tornado began west of Highway 123 and north of Old Route 36. It crossed the highway at Kern Road and widened to about 50 yards as it continued northeast through farm fields. The tornado damaged a farm outbuilding and dented two grain silos at the intersection of Hog Barn Road and Buelah Road before continuing northeast through additional farm fields. A woman suffered a dislocated shoulder when winds associated with the tornado tossed her against her house. It damaged a few hardwood trees, then dissipated just north of Donnan Lane near the Morgan-Sangamon county line. The tornado was rated EF-1.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 1261211)

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

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: 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 Morgan 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).

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

What time of year?

48% of its severe thunderstorm wind events since 1955 fell in May and June. The two busiest months are in violet.

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

Federal disaster declarations for Morgan County

FEMA's register lists 17 declarations that include Morgan County: 13 major disasters, 4 emergencies and 0 fire management assistance declarations. Most were for flood (6) and severe storm (4).

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 Morgan County had?

NOAA's Storm Events Database holds 47 flood or flash flood records for Morgan County from 1997 to 2022, on 39 days, with 1 death. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Morgan County ranks 845th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $1.6 million on 242 claims filed in Morgan County; the most in one year was 63 in 1982. Claims count insured losses only: uninsured flood damage is not in this file.

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 Morgan County

FEMA's National Risk Index rates Morgan County Relatively Low overall, with an expected annual loss of $28.5 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.

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

Counties that share a border with Morgan County

1. Sangamon County 1,107
2. Macoupin County 649
3. Morgan County 476
4. Pike County 443
5. Cass County 319
6. Greene County 307
7. Brown County 261
8. Scott County 256

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

Next

• Tornadoes in IllinoisEvery Illinois tornado since 1950 and the counties with the most per square mile
• Severe thunderstorm wind in IllinoisThe state's severe thunderstorm wind events, by county, year and month
• The Illinois recordEvery hazard in the state, its deadliest events and its federal declarations
• FEMA's risk rating for each hazard in Morgan CountyThe hazard risk calculator: 18 hazards beside the county's record
• Download Morgan County's FEMA declarations (CSV)17 rows: every declaration that named the county, for your own analysis