EF0 tornado, Heman to Bement, Illinois, June 10, 2026

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.

Rating, as surveyed

EF0, preliminary

Date

June 10, 2026

Touchdown

11:50 PM CDT (04:50 UTC)

Lifted

11:57 PM CDT (04:57 UTC)

On the ground

7 minutes

Path length

7.6 miles (12.2 km)

Path width

100 yards (91 m)

Deaths

0

Injuries

0

Counties

Macon and Piatt counties

Touchdown point

39.996, -88.860

Lift-off point

39.971, -88.726

Highest wind the damage implies

85 mph

Surveyed by

NWS ILX

The office's name for it

Argenta Tornado

Survey last edited

June 16, 2026

Record number

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

The tornado touched down about 2 miles west-northwest of Argenta

where it damaged an outbuilding and some trees. It progressed

east through Argenta where it snapped off several trees. The

tornado produced mainly tree damage as it moved east along Newburg

Rd before dissipating 3 miles south of Cisco.

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

51 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 90 mph.

• Total destruction of grain storage building. Concrete foundation is all that is left. Report from local.
• Narrow track in the field south of State Hwy 105.
• Trailer rolled and broke apart
• Tree debris in road with nearest tree a mile to the west

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

A line of thunderstorms developed ahead of an approaching cold front during the evening of June 10th. Scattered wind damage was observed along and north of the I-72 corridor, with the most concentrated damage focusing across portions of Menard, Logan, Sangamon, and Macon counties where the cells interacted with an existing outflow boundary from earlier storms. Six tornadoes touched down within this corridor, including an EF-1 tornado that tracked across Abraham Lincoln Capital Airport and the north side of Springfield.

This tornado crossed from Logan County into Macon County along 2400th Avenue between West Hampshire Road and West School Road at 11:32pm CDT. It continued southeastward, causing mostly minor tree damage before dissipating just west of the intersection of US-51 and West Wise Road about 3 miles north of Forsyth at 11:42pm CDT.

A tornado touched down along East Hampshire Road about 2 miles west-northwest of Argenta at 11:50pm CDT. It tracked east-southeastward damaging an outbuilding and trees before passing through Argenta and snapping numerous trees. The tornado then produced additional tree damage before crossing into Piatt County near the intersection of Newburg Road and County Line Road at 11:55pm CDT.

This tornado crossed from Macon County into Piatt County near the intersection of Newburg Road and County Line Road at 11:55pm CDT. It broke several tree branches before dissipating near IL-32 about 3 miles south of Cisco at 11:57pm CDT.

A tornado touched down just north of the intersection of East 600 North Road and North 500 East Road about 5 miles southwest of Bement at 12:02am CDT June 11th. The tornado initially damaged two large trees, then tracked northeastward through open fields south of IL-105. It removed the roof of a grain storage building and snapped two power poles where IL-105 turns north toward Bement. The tornado destroyed a camper along North 1000 East Road, then damaged a grain bin, a couple outbuildings, and numerous trees along East 900 North Road before dissipating before reaching the county line at 12:08am CDT June 11th.

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

22 minutes of warning. NWS ILX issued a tornado warning for this county at 04:28 UTC, 22 minutes before the tornado touched down, in force until 04:57 UTC.

The county was under a severe thunderstorm watch, issued at 04:05 UTC and running to 05:34 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 Slight Risk, with a 0.05 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 01:19 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 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.

Decatur (DEC), 18 km from the path, in the two hours either side.

From the Iowa Environmental Mesonet's archive of airport observations.

The Lincoln radar (KILX), 50 km away, was scanning. The volume nearest the touchdown began at 04:49 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

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

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.