Tornadoes · United States · Illinois · 2026

EF0 tornado, Olney, Illinois, March 15, 2026

This EF0 tornado ran 2.0 miles across Richland County on March 15, 2026, touching down at 8:05 PM CDT and reaching 40 yards wide. It killed nobody.

Preliminary. This is NWS ILX's damage survey, filed in the Damage Assessment Toolkit as Olney Tornado. The rating, the path and the casualties are the survey's and can change while it is revised. The Storm Prediction Center compiles the official record of 2026 from these surveys and publishes it in the spring of 2027; this page moves to that tornado's permanent address when it does.

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 mphthis tornado

    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 mph

    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 survey

Rating, as surveyed
EF0, preliminary
Date
March 15, 2026
Touchdown
8:05 PM CDT (01:05 UTC)
Lifted
8:07 PM CDT (01:07 UTC)
On the ground
2 minutes
Path length
2.0 miles (3.3 km)
Path width
40 yards (37 m)
Deaths
0
Injuries
0
County
Richland County
Touchdown point
38.729, -88.105
Lift-off point
38.737, -88.071
Highest wind the damage implies
75 mph
Surveyed by
NWS ILX
The office's name for it
Olney Tornado
Survey last edited
March 17, 2026
Record number
None yet. SPC numbers 2026 in the spring of 2027.

What the survey found

The tornado started just west of Olney and was sighted at the intersection of W Main St and W Elms St. The tornado proceeded through town causing areas of tree damage and fencing damage. The tornado dissipated on the east end of town.

Written by NWS ILX in the NWS Damage Assessment Toolkit. A survey is revised as better evidence arrives.

The damage survey

3 damage points were recorded along this path by NWS ILX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 75 mph.

  • A spotter reported sighting the tornado on the ground near the intersection of W Main St and W Elm St. Radar rotation supported the report.
  • picture of an large limb down
  • Picture of tree damage into fencing

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

A strong low pressure system (987 mb) moved across Illinois during the afternoon of Sunday, March 15, 2026. The environment was characterized by high shear and weak instability. A line of storms swept across the state, producing scattered wind damage and eight tornadoes within the NWS Central Illinois coverage area. The tornadoes occurred southeast of the I-72 corridor and all were rated EF-0 or EF-1. No injuries occurred.

The tornado began just west of Olney and was sighted at the intersection of west Main Street and west Elms Street. The tornado proceeded through town, causing areas of tree and fencing damage. The tornado dissipated on the east side of town. It was rated EF-0, with a path length of just over two miles and a duration of two minutes.

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

The warnings

5 minutes of warning. NWS ILX issued a tornado warning for this county at 01:00 UTC, 5 minutes before the tornado touched down, in force until 01:30 UTC.

The county was under a tornado watch, issued at 20:43 UTC and running to 02:06 UTC.

Issued (UTC)ExpiredProductOffice
15:00 UTC17:00 UTCWind AdvisoryILX
20:43 UTC02:06 UTCTornado WatchILX
00:16 UTC01:00 UTCSevere Thunderstorm WarningILX
00:51 UTC01:29 UTCSevere Thunderstorm WarningILX
01:00 UTC01:30 UTCTornado WarningILX

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 Marginal Risk. The outlook in force was issued at 00:43 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), 00:00Z

1.1 hours before the tornado, 164 km from the path. March 16, 2026.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2026-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1 joules per kilogram, CIN 0, lifted condensation level 499 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 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 2026-03-16The 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 182 square meters per square second, 0 to 6 km bulk shear 70 knots.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Surface CAPE
20 J/kg
Mixed-layer LCL
499 m above ground
0-6 km bulk shear
70 kt
0-1 km bulk shear
10 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
481 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
2.2 K/km

Open this sounding in Storm Lab

Lincoln, IL (KILX), 12:00Z

10.9 hours after it, 164 km from the path. March 16, 2026.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2026-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -109535, lifted condensation level 742 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 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 2026-03-16The 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 -50 square meters per square second, 0 to 6 km bulk shear 61 knots.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
-109535 J/kg
Surface CAPE
9 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
61 kt
0-1 km bulk shear
30 kt
0-1 km storm-relative helicity
-50 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

The radar

The Evansville,IN radar (KVWX), 61 km away, was scanning. The volume nearest the touchdown began at 01:01 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
00:25 UTCTSTM WND GST 60LouisvilleClay, ILEstimated winds at least 50-60 mph.
00:55 UTCTSTM WND GST 54Flora Municipal AirportClay, ILAWOS station KFOA Flora Arpt.
01:05 UTCTORNADO1 Wsw OlneyRichland, ILThe tornado started just west of Olney and was sighted at the intersection of W Main St and W Elms St. The tornado proceeded through town causing areas of tree damage and fencing damage. The tornado dissipated on the eas
01:18 UTCTSTM WND DMGGrayvilleWhite, ILSeveral trees down or damaged.
01:55 UTCTSTM WND GST 58Robinson Municipal AirpCrawford, ILAWOS station KRSV Robinson Arpt.

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

This ground now

The live radar over the trackEvery 2026 tornado in IllinoisEvery tornado in Illinois since 1950Warnings in force in Illinois nowThe forecast where you are

The other tornadoes of March 15, 2026

43 more have been surveyed in the United States that day, so far.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
March 153:37 PM CDTEF1Texas, MO0.3100
March 153:48 PM CDTEF0Howell, MO1.975
March 153:55 PM CDTEF1Texas, MO2.4100
March 154:00 PM CDTEF0Texas, MO0.8100
March 154:03 PM CDTEF1Shannon, MO1.4250
March 154:10 PM CDTEF0Texas, MO0.575
March 155:29 PM CDTEF1Macoupin, IL6.3300
March 155:35 PM CDTEF0Monroe, IL8.7160
March 155:38 PM CDTEF1Montgomery, IL7.10
March 155:43 PM CDTEF1Lawrence, AR10.5200
March 155:47 PM CDTEF1Saint Clair, IL0.6225
March 155:47 PM CDTEF1Montgomery, IL3.6300$500
March 155:51 PM CDTEF1Wayne, MO1.6125
March 155:55 PM CDTEF1Montgomery, IL7.80
March 155:58 PM CDTEF0Greene, AR4.5100
March 156:02 PM CDTUnratedArkansas, AR2.450
March 156:02 PM CDTEF1Montgomery, IL13.690
March 156:07 PM CDTEF0Greene, AR2.2100
March 156:12 PM CDTEF1Greene, AR3.0150
March 156:18 PM CDTEF1Christian, IL1.480$300
March 156:19 PM CDTEF1Bollinger, MO7.8100
March 156:24 PM CDTEF1Clay, AR2.0130
March 156:29 PM CDTEF1Clinton, IL4.250
March 156:32 PM CDTEF1Cape Girardeau, MO0.550
March 156:37 PM CDTEF0Moultrie, IL2.250$20
March 156:42 PM CDTEF1Moultrie, IL5.350$45
March 156:44 PM CDTEF0Dunklin, MO2.975
March 156:46 PM CDTEF1Jackson, IL0.175
March 156:54 PM CDTEF0Douglas, IL2.280$70
March 157:02 PM CDTEF0Jackson, IL0.150
March 157:03 PM CDTEF1Douglas, IL2.370$25
March 157:06 PM CDTEF1Douglas, IL11.470
March 158:17 PM CDTEF1Alcorn, MS2.5100
March 159:35 PM CDTEF0Montgomery, TN5.1200
March 159:45 PM CDTEF0Logan, KY0.840
March 159:59 PM CDTEF0Butler, KY4.650
March 1510:04 PM CDTEF1Grayson, KY17.8300
March 1510:06 PM CDTEF1Maury, TN16.5500
March 1510:06 PM CDTEF1Warren, KY2.240
March 1511:24 PM EDTEF1Hardin, KY4.0100
March 1511:29 PM EDTEF1Hardin, KY13.5200
March 1510:48 PM CDTEF1Lauderdale, AL to TN14.6400
March 1512:35 AM CDTEF1Clinton, KY1.3200

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. A survey can be revised, so the rating, the path and the casualties can all still change.

Sources

NWS Damage Assessment Toolkit, the record the survey teams file from the damage, and NOAA Storm Prediction Center storm reports. Neither is the official database for 2026, which SPC publishes in the spring of 2027.