Illinois, 1999

Hail and Damaging Winds in Illinois, August 12, 1999

August 12, 1999 · NWS ILX · 19 events in 16 counties and zones

16 thunderstorm wind, 3 hail, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
$669,000
Crop damage
$52 million
Events
19

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

The radar

The national radar mosaic for the moment the first event began.

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Event by event

16 thunderstorm wind, 3 hail. Local standard time, as filed.

Thunderstorm Wind, Schuyler

When
August 12, 5:40 PM CST to 7:19 PM CST
Where
Schuyler County, Huntsville to Frederick
Measured
70 kt (81 mph)
Property damage
$77,000
Crop damage
$2.0 million
Reported by
EMERGENCY MANAGER
Coordinates
40.180, -90.870

Thunderstorm winds caused considerable damage in Schuyler county. Numerous trees, tree limbs, and power lines were blow down. Also, thousands of acres of corn were laid down by the winds. Crop damage was estimated around $2 million. In Rushville, one unoccupied truck was damaged when a tree fell onto it. Property damage was estimated around $77,000.

Thunderstorm Wind, Fulton

When
August 12, 6:25 PM CST
Where
Fulton County, Astoria
Property damage
$50,000
Reported by
EMERGENCY MANAGER
Coordinates
40.230, -90.350

Numerous power lines and tree limbs blown down.

Thunderstorm Wind, Mason

When
August 12, 6:38 PM CST to 7:15 PM CST
Where
Mason County, Bath to Mason City
Measured
70 kt (81 mph)
Property damage
$100,000
Crop damage
$12 million
Reported by
EMERGENCY MANAGER
Coordinates
40.200, -90.150

As a line of severe thunderstorms moved through Mason County, numerous trees, tree limbs, and power lines were blown down. Also, thousands of acres of corn were laid down. At the intersection of Route 97 and the Bath blacktop, a tree was blown over onto a van trapping its occupants. They were freed by rescue crews and sustained no injuries. In the Sanganois conservation area, another car was trapped by a fallen tree, but there were no injuries. Damage to the crops was estimated around $12.3 million.

Thunderstorm Wind, Menard

When
August 12, 6:45 PM CST to 7:25 PM CST
Where
Menard County, Petersburg to Fancy Prairie
Measured
59 kt (68 mph)
Property damage
$75,000
Crop damage
$6.0 million
Reported by
EMERGENCY MANAGER
Coordinates
40.020, -89.850

Trees were blown down countywide, as well as, 11 power poles along Route 29 just north of Athens.One tree fell onto a house and truck just north of Petersburg. No injuries were reported. Thousands of acres of corn were flattened, especially in the northern part of the county. Damage to the crops was estimated around $6 million.

Thunderstorm Wind, Logan

When
August 12, 6:55 PM CST to 7:40 PM CST
Where
Logan County, Middletown to Mt Pulaski
Measured
74 kt (85 mph)
Property damage
$50,000
Crop damage
$8.3 million
Reported by
EMERGENCY MANAGER
Coordinates
40.100, -89.580

Numerous trees, tree limbs, and power lines were blown down countywide. Also, thousands of acres of corn were flattened. In Mt. Pulaski, a tree was blown down onto a house causing minor damage. New Holland Fire Department estimated 85 mph winds for about 2 minutes. Damage to the crops was estimated around $8.3 million.

Thunderstorm Wind, Tazewell

When
August 12, 7:15 PM CST
Where
Tazewell County, Armington
Property damage
$10,000
Reported by
EMERGENCY MANAGER
Coordinates
40.330, -89.300

Several trees were blown down.

Thunderstorm Wind, Cass

When
August 12, 7:20 PM CST to 7:35 PM CST
Where
Cass County, Beardstown to Chandlerville
Measured
52 kt (60 mph)
Property damage
$210,000
Crop damage
$6.8 million
Reported by
EMERGENCY MANAGER
Coordinates
40.020, -90.430

As a line of severe thunderstorms moved into Cass County, several miles stretch of US Route 67 was closed due to 40 power poles being blown down. Also, ten homes sustained minor damage from the storms. A barn and a garage were destroyed, and numerous trees, tree limbs, and other power lines were blown down. In Arenzville, one of the fallen trees damaged a pickup truck. Also, considerable crop damage was reported countywide, especially between Beardstown and Arenzville. Damage to the crops was estimated around $6.8 million.

Thunderstorm Wind, Scott

When
August 12, 7:45 PM CST to 8:00 PM CST
Where
Scott County, Riggston to 3 mi of Riggston
Property damage
$15,000
Crop damage
$2.8 million
Reported by
NEWSPAPER
Coordinates
39.670, -90.470

Several large tree limbs were blown down along Interstate 72. Also, there was considerable damage to corn crops around the Riggston area. Damage to the crops was estimated around $2.8 million.

Thunderstorm Wind, Morgan

When
August 12, 7:45 PM CST to 8:30 PM CST
Where
Morgan County, Concord to Waverly
Property damage
$22,000
Crop damage
$12 million
Reported by
EMERGENCY MANAGER
Coordinates
39.820, -90.370

Numerous trees, tree limbs, and power lines blown down countywide. In Jacksonville, 5 mobile homes sustained moderate damage from tree limbs. Also, several car windows were broken due to fallen tree limbs. Thousands of acres of corn were destroyed. Damage to the crops was estimated around $11.8 million.

Thunderstorm Wind, Sangamon

When
August 12, 8:00 PM CST
Where
Sangamon County, Pleasant Plains
Property damage
$10,000
Reported by
EMERGENCY MANAGER
Coordinates
39.870, -89.920

Several power lines were blown down.

Thunderstorm Wind, Macon

When
August 12, 8:00 PM CST to 8:15 PM CST
Where
Macon County, Maroa to Argenta
Crop damage
$2.2 million
Reported by
NEWSPAPER
Coordinates
40.030, -88.950

As a severe thunderstorm moved across northern portions of Macon County, thousands of acres of corn were destroyed. Also, several power lines were blown down in Argenta. Dollar amounts estimates of crop damage was around $2.2 million.

Hail, Macon

When
August 12, 8:57 PM CST
Where
Macon County, 1 mi S of Decatur
Measured
1 in hail
Reported by
EMERGENCY MANAGER
Coordinates
39.830, -88.950

Hail, Champaign

When
August 12, 8:57 PM CST
Where
Champaign County, 1 mi N of Champaign
Measured
0.75 in hail
Reported by
EMERGENCY MANAGER
Coordinates
40.130, -88.250

Thunderstorm Wind, Sangamon

When
August 12, 9:10 PM CST
Where
Sangamon County, Auburn
Measured
52 kt (60 mph)
Reported by
EMERGENCY MANAGER
Coordinates
39.580, -89.750

Several trees and tree limbs blown down.

Hail, Sangamon

When
August 12, 9:15 PM CST to 9:20 PM CST
Where
Sangamon County, Divernon to Pawnee
Measured
1 in hail
Reported by
EMERGENCY MANAGER
Coordinates
39.570, -89.670

Thunderstorm Wind, Douglas

When
August 12, 9:24 PM CST
Where
Douglas County, Tuscola
Property damage
$10,000
Reported by
EMERGENCY MANAGER
Coordinates
39.800, -88.280

Several large tree limbs blown down, some of which knocked down a couple of power lines.

Thunderstorm Wind, Christian

When
August 12, 9:35 PM CST
Where
Christian County, 1 mi SE of Edinburg
Reported by
EMERGENCY MANAGER
Coordinates
39.630, -89.370

Tree blown down across road.

Thunderstorm Wind, Coles

When
August 12, 9:49 PM CST to 10:05 PM CST
Where
Coles County, Mattoon to 2 mi of Charleston
Property damage
$20,000
Reported by
EMERGENCY MANAGER
Coordinates
39.520, -88.370

Numerous tree limbs and power lines blown down.

Thunderstorm Wind, Edgar

When
August 12, 10:15 PM CST
Where
Edgar County, Paris
Property damage
$20,000
Reported by
EMERGENCY MANAGER
Coordinates
39.620, -87.700

Several power lines blown down. A large tree limb went through the roof of a house on the northwest side of town, causing minor damage.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Illinois in 1999Every state in 1999This day in weather historyWarnings in Illinois, August 1999

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5713270, 5713271, 5713368, 5713371, 5713372, 5713369, 5713370, 5713373, 5713374, 5713375, 5713476, 5713376, 5713377, 5713378, 5713471, 5713473, 5713472, 5713474, 5713475.