Tornadoes · United States · Illinois · 2026
EF1 tornado, Tazewell and McLean counties, Illinois, April 17, 2026
This EF1 tornado ran 12.4 miles across Tazewell and McLean counties on April 17, 2026, touching down at 8:41 PM CDT and reaching 300 yards wide. It killed nobody.
Preliminary. This is NWS ILX's damage survey, filed in the Damage Assessment Toolkit as Stanford 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.
EF065 to 85 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mphthis tornado
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- EF1, preliminary
- Date
- April 17, 2026
- Touchdown
- 8:41 PM CDT (01:41 UTC)
- Lifted
- 8:53 PM CDT (01:53 UTC)
- On the ground
- 12 minutes
- Path length
- 12.4 miles (20.0 km)
- Path width
- 300 yards (274 m)
- Deaths
- 0
- Injuries
- 0
- Counties
- Tazewell and McLean counties
- Touchdown point
- 40.404, -89.325
- Lift-off point
- 40.488, -89.118
- Highest wind the damage implies
- 100 mph
- Surveyed by
- NWS ILX
- The office's name for it
- Stanford Tornado
- Survey last edited
- April 23, 2026
- Record number
- None yet. SPC numbers 2026 in the spring of 2027.
What the survey found
This tornado touched down 3 miles south of Minier and moved northeast destroying a farm outbuildings and blowing to west east into the field. It damaged a farm building and then moved northeast and entered the far west side of Stanford. In the northwest side of town it did lots of tree damage and then moved northeast toward Bloomington, IL. The tornado damaged more trees and then dissipated 2 miles west of I-55/I-74 on Rte 9.
Written by NWS ILX in the NWS Damage Assessment Toolkit. A survey is revised as better evidence arrives.
The damage survey
253 damage points were recorded along this path by NWS ILX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF2. The highest wind the damage implies is 115 mph.
- Insulation blown to east from building.
- Looks like it split and went two directions.
- Photo sent to NWS Lincoln account shows a possible ground circulation near Deer Creek. Location approximated.
- Debris blown east across street into field.
Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.
The surface observations
Bloomington/Norm (BMI), 26 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 00:00 UTC |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Lincoln radar (KILX), 34 km away, was scanning. The volume nearest the touchdown began at 01:43 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.
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 April 17, 2026
89 more have been surveyed in the United States that day, so far.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| April 17 | 1:46 PM CDT | EF0 | Mower, MN | 2.8 | 110 | |||
| April 17 | 1:55 PM CDT | EF0 | Dodge, MN | 5.3 | 150 | |||
| April 17 | 2:15 PM CDT | Unrated | Jackson, IA | 1.0 | 0 | |||
| April 17 | 2:19 PM CDT | EF2 | Olmsted, MN | 9.7 | 250 | 2 | ||
| April 17 | 2:32 PM CDT | Unrated | Butler, IA | 1.6 | 10 | |||
| April 17 | 2:33 PM CDT | EF1 | Olmsted, MN | 12.4 | 200 | |||
| April 17 | 2:47 PM CDT | EF1 | Jo Daviess, IL | 3.7 | 100 | |||
| April 17 | 2:47 PM CDT | EF2 | Olmsted, MN | 7.7 | 200 | |||
| April 17 | 2:47 PM CDT | EF0 | Howard, IA | 4.2 | 60 | 1 | ||
| April 17 | 3:08 PM CDT | Unrated | Atchison, KS | 0.0 | 0 | |||
| April 17 | 3:26 PM CDT | EF3 | Buffalo, WI | 10.3 | 300 | |||
| April 17 | 3:36 PM CDT | EF2 | Stephenson, IL | 12.5 | 1,250 | |||
| April 17 | 4:07 PM CDT | EF1 | Osage, KS | 1.1 | 75 | |||
| April 17 | 4:09 PM CDT | EF1 | Trempealeau, WI | 5.6 | 90 | |||
| April 17 | 4:17 PM CDT | Unrated | Clayton, IA | 0.6 | 20 | |||
| April 17 | 4:20 PM CDT | EF1 | Trempealeau, WI | 4.6 | 130 | |||
| April 17 | 4:35 PM CDT | Unrated | Winnebago, IL | 0.7 | 50 | |||
| April 17 | 4:44 PM CDT | EF1 | Marathon, WI | 4.3 | 100 | |||
| April 17 | 4:46 PM CDT | EF3 | Marathon, WI | 13.5 | 600 | $8,000 | ||
| April 17 | 4:52 PM CDT | EF1 | Jackson, WI | 2.3 | 150 | |||
| April 17 | 4:57 PM CDT | EF1 | Winnebago, IL | 5.0 | 400 | |||
| April 17 | 5:02 PM CDT | EF1 | Washington, IA | 5.3 | 100 | |||
| April 17 | 5:19 PM CDT | EF1 | Cass, MO | 4.8 | 0 | |||
| April 17 | 6:02 PM CDT | EF1 | Rock, WI | 1.9 | 75 | |||
| April 17 | 6:05 PM CDT | EF1 | Rock, WI | 2.1 | 100 | |||
| April 17 | 6:15 PM CDT | EF1 | Rock, WI | 4.4 | 75 | |||
| April 17 | 6:39 PM CDT | EF1 | Walworth, WI | 3.0 | 75 | |||
| April 17 | 6:40 PM CDT | EF0 | Mercer, IL | 0.9 | 50 | |||
| April 17 | 6:43 PM CDT | EF1 | Walworth, WI | 3.1 | 75 | |||
| April 17 | 6:55 PM CDT | EF1 | Hancock, IL | 5.7 | 150 | |||
| April 17 | 6:55 PM CDT | EF0 | Kay, OK | 5.1 | 100 | |||
| April 17 | 7:03 PM CDT | EF1 | Winnebago, IL | 11.6 | 350 | |||
| April 17 | 7:03 PM CDT | EF1 | Kay, OK | 14.4 | 1,200 | |||
| April 17 | 7:04 PM CDT | EF1 | Henry, IL | 0.3 | 50 | |||
| April 17 | 7:11 PM CDT | EF1 | Kay, OK | 0.9 | 75 | |||
| April 17 | 7:12 PM CDT | EF1 | Kay, OK | 0.3 | 75 | |||
| April 17 | 7:13 PM CDT | EF1 | Hancock, IL | 6.0 | 75 | |||
| April 17 | 7:15 PM CDT | EF1 | Knox, IL | 10.3 | 800 | |||
| April 17 | 7:19 PM CDT | EF1 | Benton, MO | 5.9 | 0 | |||
| April 17 | 7:22 PM CDT | EF0 | Walworth, WI | 1.9 | 50 | |||
| April 17 | 7:23 PM CDT | EF0 | Benton, MO | 0.4 | 200 | |||
| April 17 | 7:25 PM CDT | EF1 | Benton, MO | 1.6 | 150 | |||
| April 17 | 7:29 PM CDT | EF2 | McDonough, IL | 12.8 | 200 | $90 | ||
| April 17 | 7:32 PM CDT | EF0 | Racine, WI | 1.4 | 50 | |||
| April 17 | 7:40 PM CDT | EF2 | Fulton, IL | 18.1 | 500 | $500 | ||
| April 17 | 7:44 PM CDT | EF0 | Morgan, MO | 1.2 | 0 | |||
| April 17 | 7:46 PM CDT | EF1 | Morgan, MO | 7.2 | 300 | |||
| April 17 | 7:50 PM CDT | EF1 | Schuyler, IL | 36.7 | 1,200 | |||
| April 17 | 7:52 PM CDT | EF0 | Waukesha, WI | 0.6 | 70 | |||
| April 17 | 7:55 PM CDT | EF0 | Racine, WI | 3.7 | 50 | |||
| April 17 | 7:56 PM CDT | EF1 | Racine, WI | 5.2 | 75 | |||
| April 17 | 7:59 PM CDT | EF0 | Morgan, MO | 1.3 | 150 | |||
| April 17 | 8:08 PM CDT | EF0 | Cole, MO | 3.5 | 50 | |||
| April 17 | 8:11 PM CDT | EF1 | Mason, IL | 15.4 | 200 | |||
| April 17 | 8:14 PM CDT | EF1 | Bureau, IL | 17.6 | 300 | |||
| April 17 | 8:22 PM CDT | EF1 | Tazewell, IL | 6.3 | 100 | |||
| April 17 | 8:26 PM CDT | EF1 | Menard, IL | 5.9 | 300 | |||
| April 17 | 8:27 PM CDT | EF1 | Tazewell, IL | 2.3 | 500 | |||
| April 17 | 8:27 PM CDT | EF1 | Tazewell, IL | 2.3 | 70 | $50 | ||
| April 17 | 8:29 PM CDT | EF1 | Tazewell, IL | 4.6 | 1,100 |
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.