Tornadoes · United States · Illinois · 2026
EF0 tornado, Vermilion County, Illinois, April 17, 2026
This EF0 tornado ran 0.4 miles across Vermilion County on April 17, 2026, touching down at 10:45 PM CDT and reaching 200 yards wide. It killed nobody.
Preliminary. This is NWS ILX's damage survey, filed in the Damage Assessment Toolkit as Tilton 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 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
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
- EF0, preliminary
- Date
- April 17, 2026
- Touchdown
- 10:45 PM CDT (03:45 UTC)
- Path length
- 0.4 miles (0.7 km)
- Path width
- 200 yards (183 m)
- Deaths
- 0
- Injuries
- 0
- County
- Vermilion County
- Touchdown point
- 40.092, -87.643
- Lift-off point
- 40.092, -87.635
- Highest wind the damage implies
- 85 mph
- Surveyed by
- NWS ILX
- The office's name for it
- Tilton Tornado
- Survey last edited
- April 20, 2026
- Record number
- None yet. SPC numbers 2026 in the spring of 2027.
What the survey found
The tornado did only tree damage as it quickly moved west to east.
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 85 mph.
- Pole broken due to tree fell on power lines.
- Also top of nearby tree damaged.
Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.
The warnings
No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.
The county was under a tornado watch, issued at 01:31 UTC and running to 03:45 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 23:00 UTC | 09:00 UTC | Flood Watch | ILX |
| 01:31 UTC | 03:45 UTC | Tornado Watch | ILX |
| 03:11 UTC | 04:00 UTC | Severe Thunderstorm Warning | ILX |
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 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 00:59 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
3.8 hours before the tornado, 82 km from the path. April 18, 2026.
- Mixed-layer CAPE
- 1309 J/kg
- Mixed-layer CIN
- -103 J/kg
- Surface CAPE
- 2371 J/kg
- Mixed-layer LCL
- 1221 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 212 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 8.2
- 0-3 km lapse rate
- 7.0 K/km
Lincoln, IL (KILX), 12:00Z
8.2 hours after it, 82 km from the path. April 18, 2026.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -107253 J/kg
- Surface CAPE
- 1 J/kg
- Mixed-layer LCL
- 1118 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 3.0 K/km
The radar
The Indianapolis radar (KIND), 124 km away, was scanning. The volume nearest the touchdown began at 03:47 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) | Report | Where | County | Remark |
|---|---|---|---|---|
| 02:49 UTC | TSTM WND DMG | 1 Nnw Paxton | Ford, IL | Report of an eight inch diameter tree branch broken off of a tree near the intersection of Oak St and American St in Paxton. Time estimated by radar. |
| 02:49 UTC | TSTM WND DMG | Loda | Iroquois, IL | Grain bins were destroyed in Loda. Exact location unknown. Time estimated using radar. |
| 03:03 UTC | TSTM WND DMG | Urbana | Champaign, IL | A large tree was snapped on Broadway Avenue. |
| 03:04 UTC | TSTM WND GST 59 | Willard Airport | Champaign, IL | |
| 03:45 UTC | TSTM WND DMG | 1 Se Tilton | Vermilion, IL | Power pole down on Leonard St. |
| 03:45 UTC | TSTM WND DMG | 1 Se Tilton | Vermilion, IL | A tree was blown over at IL Route 1 and Moore Street. |
| 03:45 UTC | TSTM WND DMG | 1 Sse Tilton | Vermilion, IL | [Delayed Report] - Several trees blown over onto roadways around Tilton. At least one power pole was broken, with others leaning. |
| 03:45 UTC | TORNADO | Tilton | Vermilion, IL | EF0, peak wind speed 85 mph, path length 0.4 mi. The tornado did only tree damage as it quickly moved west to east. |
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 April 17, 2026
88 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 | 2:19 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 | |||
| April 17 | 8:31 PM CDT | EF0 | Callaway, MO | 2.3 | 50 |
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.