EF1 tornado, Towne Oaks to Deer Creek, Illinois, June 11, 2026

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 mphthis tornado

   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.

Rating, as surveyed

EF1, preliminary

Date

June 11, 2026

Touchdown

6:08 PM CDT (23:08 UTC)

Lifted

6:18 PM CDT (23:18 UTC)

On the ground

10 minutes

Path length

12.9 miles (20.8 km)

Path width

300 yards (274 m)

Deaths

0

Injuries

0

Counties

Tazewell and Woodford counties

Touchdown point

40.568, -89.533

Lift-off point

40.649, -89.312

Highest wind the damage implies

105 mph

Surveyed by

NWS ILX

The office's name for it

Morton Tornado

Survey last edited

June 13, 2026

Record number

None yet. SPC numbers 2026 in the spring of 2027.

This tornado touched down about 1.5 miles south of Groveland, and moved northeast along the southern edge of Morton. A number of tree trunks were snapped, a few of which fell onto cars. It left town near the intersection of Jefferson St. and Tennessee Ave. and entered the Mayfair subdivision, causing extensive tree limb damage and damage to some shingles. It crossed I-74 about 1.5 miles east of the Washington Rd. overpass. Along Harding Rd., it impacted a couple of farmsteads, damaging an outbuilding at one of them. The tornado crossed into Woodford County about 1 mile north of Deer Creek, before lifting near county road 1200E.

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

49 damage points were recorded along this path by NWS ILX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 110 mph.

• Photos show tree and roof damage at 2nd Ave and Oakwood St. Geolocated report from County EMA.
• 18-wheeler blown over on I-74 near Washington Road, per county EMA.
• Extensive tree limb damage and some shingle loss throughout Mayfair. Geolocated report from County EMA.
• 18 inch diameter tree uprooted just south of Idlewood Street on 2nd Ave. Geolocated report from County EMA.

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

A strong storm system interacted with a highly unstable and sheared environment to produce a significant severe weather outbreak across central Illinois during the late afternoon and evening of June 11th. Scattered supercell thunderstorms initially developed west of the I-55 corridor along a pre-frontal trough during the afternoon. One of these storms produced an EF-3 tornado that impacted portions of Woodford and Marshall counties and dropped tennis ball-sized hail (2.50 diameter). Additional cells rapidly developed further west across southeastern Iowa into northern Missouri ahead of an advancing cold front. These storms congealed into a line and pushed eastward into central Illinois during the evening. Widespread damaging wind gusts of 60-70mph occurred with the line along and north of the I-72 corridor. After storm surveys were completed, it was discovered an additional 8 tornadoes were embedded within the line...creating pockets of enhanced damage.

A tornado touched down near the intersection of Broadway Road and Springfield Road about 2 miles south of Groveland at 6:08pm CDT. It tracked northeastward along the southern edge of Morton where it snapped numerous trees, some of which fell onto cars. The tornado exited Morton near the intersection of East Jefferson Street and Tennessee Avenue and entered the Mayfair subdivision where it caused extensive tree limb damage and stripped shingles off a few homes. It crossed I-74 about 1.5 miles east of the Washington Road overpass and damaged an outbuilding and a couple of farmsteads before crossing into Woodford County about 1 mile north of Deer Creek along Lakeland Road at 6:17pm CDT.

This tornado crossed from Tazewell County into Woodford County about 1 mile north of Deer Creek along Lakeland Road at 6:17pm CDT. It snapped a couple trees before quickly dissipating before reaching County Road 1200 at 6:18pm CDT.

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

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.

The county was under a tornado watch, issued at 19:02 UTC and running to 00:33 UTC.

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 Storm Prediction Center had this point in a Moderate Risk, with a 0.15 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 19:53 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 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.

The Lincoln radar (KILX), 51 km away, was scanning. The volume nearest the touchdown began at 23:11 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.

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

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

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

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

All 66 of them

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.

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.