Tornadoes · United States · Illinois · 2021

EF2 tornado, Wrights, Illinois, October 11, 2021

This EF2 tornado ran 5.8 miles across Greene County on October 11, 2021, touching down at 2:37 PM CDT and reaching 75 yards wide. It killed nobody, and did $100,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. EF065 to 85 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. EF2111 to 135 mphthis tornado

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. EF3136 to 165 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. EF5over 200 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
EF2
Date
October 11, 2021
Touchdown
2:37 PM CDT (19:37 UTC)
Lifted
2:45 PM CDT (19:45 UTC)
On the ground
8 minutes
Path length
5.8 miles (9.4 km)
Path width
75 yards (69 m)
Deaths
0
Injuries
0
Property damage
$100,000
County
Greene County
Touchdown point
39.355, -90.300
Lift-off point
39.434, -90.261
Record number
2110111337-01

The damage survey

33 damage points were recorded along this path by NWS LSX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF2. The highest wind the damage implies is 115 mph.

  • Starting point from Sentinel Data

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

What the Weather Service recorded

On Monday, October 11th 2021 (Columbus Day), the potential for severe weather existed across east-central/northeast Missouri and most of central and northern Illinois. Despite limited instability (energy for storms to develop), plentiful shear (changing wind speed or direction with height) from a potent mid-level storm system provided the potential for severe storms. Though most storms never became strong or severe, one supercell in particular became organized enough to produce a tornado.

High resolution satellite data and information from storm spotters indicates the tornado touched down in an open field a little less than a mile south-southwest of the Berdan Road and Wrights Road intersection. The tornado moved north-northeast and intensified as it moved into the west side of the town of Wrights, IL. In Wrights, the tornado destroyed two new, well-built farm buildings, ripping one of from a concrete foundation around the perimeter of the building. The tornado then moved to the northeast, destroying two more farm buildings before crossing Wrights road, where it snapped a number of trees and rolled a camper onto a boat. The tornado continued to the northeast causing intermittent damage to trees and vegetation. The high resolution satellite data showed a prominent track in the open fields northeast of the NE 850 Ave and Super Slab Road Intersection. The last identifiable damage and where the tornado appeared to have ended is around a third of a mile west of the NE 1000 Street and NE 950 Ave Intersection. The tornado was rated EF2 with max wind speed of 115 mph. The path length was 5.83 miles with a max path width of 75 yards. No deaths or injuries were reported.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down. One was issued for the county at another hour that day.

Issued (UTC)ExpiredProductOffice
19:38 UTC19:59 UTCTornado WarningLSX

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a Slight Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 16:19 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Lincoln, IL (KILX), 12:00Z

7.6 hours before the tornado, 166 km from the path. October 11, 2021.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2021-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 287 joules per kilogram, CIN -72, lifted condensation level 867 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Lincoln, IL at 12:00Z on 2021-10-11The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 206 square meters per square second, 0 to 6 km bulk shear 52 knots.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
287 J/kg
Mixed-layer CIN
-72 J/kg
Surface CAPE
268 J/kg
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
52 kt
0-1 km bulk shear
31 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
230 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.3
0-3 km lapse rate
5.2 K/km

Open this sounding in Storm Lab

Lincoln, IL (KILX), 00:00Z

4.4 hours after it, 166 km from the path. October 12, 2021.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2021-10-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 10 joules per kilogram, CIN -9, lifted condensation level 743 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Lincoln, IL at 00:00Z on 2021-10-12The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity -150 square meters per square second, 0 to 6 km bulk shear 37 knots.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
10 J/kg
Mixed-layer CIN
-9 J/kg
Surface CAPE
105 J/kg
Mixed-layer LCL
743 m above ground
0-6 km bulk shear
37 kt
0-1 km bulk shear
32 kt
0-1 km storm-relative helicity
-150 m²/s²
0-3 km storm-relative helicity
-158 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0
0-3 km lapse rate
5.3 K/km

Open this sounding in Storm Lab

The radar

The St Louis radar (KLSX), 85 km away, was scanning. The volume nearest the touchdown began at 19:39 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
19:37 UTCFUNNEL CLOUDWrightsGreene, ILFUNNEL CLOUD HALFWAY TO GROUND JUST NORTH OF WHERE SPOTTER IS LOCATED.
19:38 UTCTORNADOWrightsGreene, ILSEVERAL VIDEOS OF A TORNADO HITTING A FARM IN WRIGHTS. TIME ESTIMATED FROM RADAR.
19:47 UTCTORNADO3 Wnw AthensvilleGreene, ILTORNADO ON THE GROUND WEST NORTHWEST OF ATHENSVILLE. SPOTTER WAS ON EAST SIDE OF ROODHOUSE LOOKING EAST AT IT.
20:27 UTCTORNADO2 N AlexanderMorgan, ILEM REPORTED TORNADO. STORM CHASER REPORTED TORNADO CROSSED I-72 NEAR MM 76. DEBRIS AIRBORNE AND FLIPPED A SEMI TRUCK. FUNNEL NOT FULLY CONDENSED.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2021 tornado in IllinoisEvery tornado in Illinois since 1950Warnings in force in Illinois nowThe forecast where you are

The other tornadoes of October 11, 2021

9 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
October 111:08 AM CDTEF1Newton, MO3.390$75,000
October 114:44 AM CDTEF0Jasper, MO2.450$80,000
October 113:26 PM CDTEF0Morgan, IL1.450
October 114:28 PM CDTUnratedWoodford, IL0.330
October 114:45 PM CDTEF0Woodford, IL2.575
October 115:10 PM CDTEF0Lake, IL to IN1.670
October 115:39 PM CDTUnratedWoodford, IL2.550
October 115:47 PM CDTUnratedPutnam, IL0.010
October 116:30 PM CDTUnratedLaSalle, IL0.440

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.