Tornadoes · United States · Illinois · 2026
EF1 tornado, Trenton to Carlyle, Illinois, April 27, 2026
From Trenton to Carlyle, this EF1 tornado ran 9.7 miles across Saint Clair and Clinton counties on April 27, 2026, touching down at 7:53 PM CDT and reaching 350 yards wide. It killed nobody.
Preliminary. This is NWS LSX's damage survey, filed in the Damage Assessment Toolkit as Trenton. 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 27, 2026
- Touchdown
- 7:53 PM CDT (00:53 UTC)
- Lifted
- 8:03 PM CDT (01:03 UTC)
- On the ground
- 10 minutes
- Path length
- 9.7 miles (15.5 km)
- Path width
- 350 yards (320 m)
- Deaths
- 0
- Injuries
- 0
- Counties
- Saint Clair and Clinton counties
- Touchdown point
- 38.563, -89.808
- Lift-off point
- 38.595, -89.638
- Highest wind the damage implies
- 110 mph
- Surveyed by
- NWS LSX
- The office's name for it
- Trenton
- Survey last edited
- April 29, 2026
- Record number
- None yet. SPC numbers 2026 in the spring of 2027.
The damage survey
58 damage points were recorded along this path by NWS LSX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 110 mph.
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
Multiple rounds of severe thunderstorms passed through the region for nearly the entirety of April 27th. The afternoon round was expected to be the most volatile, with an environment primed for high-end severe weather reflected by an areawide SPC Moderate Risk. What culminated was widespread large hail, wind damage, and three tornadoes in Illinois.
The tornado that formed in St. Clair county moved into Clinton county where it passed just southeast of Trenton and Sugar Creek. Along Route 160, the tornado destroyed power poles, damaged the roof of one home, and removed about half of the roof of one farm outbuilding. Along Highline Road, the tornado peeled part of the roof from a barn before dissipating.
A tornado developed just southwest of Germantown where it damaged part of the roof of an outbuilding. In Germantown, the tornado produced mostly tree damage. However, it did destroy the roof of one manufactured home and it completely destroyed another. From there, it damaged mostly trees until it reached just south of Beckemeyer. Here, the tornado destroyed one outbuilding and flipped another. The tornado produced more tree damage before dissipating just south of Carlyle.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
1 minute of warning. NWS LSX issued a tornado warning for this county at 00:52 UTC, 1 minute before the tornado touched down, in force until 01:03 UTC.
The county was under a tornado watch, issued at 17:50 UTC and running to 02:04 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 09:10 UTC | 15:00 UTC | Severe Thunderstorm Watch | LSX |
| 16:18 UTC | 02:00 UTC | Flood Watch | LSX |
| 17:27 UTC | 17:59 UTC | Tornado Warning | LSX |
| 17:50 UTC | 02:04 UTC | Tornado Watch | LSX |
| 18:55 UTC | 19:23 UTC | Severe Thunderstorm Warning | LSX |
| 19:01 UTC | 19:12 UTC | Tornado Warning | LSX |
| 00:12 UTC | 01:15 UTC | Severe Thunderstorm Warning | LSX |
| 00:52 UTC | 01:03 UTC | Tornado Warning | LSX |
| 00:56 UTC | 01:46 UTC | Severe Thunderstorm Warning | LSX |
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 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 19:49 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.
What forecasters said that day
The local office's own words before the tornado touched down, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS St. Louis, MO wrote its last area forecast discussion before the tornado touched down at Apr 27, 6:54 PM CDT, 59 minutes earlier. Its key messages:
- While periods of storms are expected through Monday morning, the most potent thunderstorms will occur through early evening.
- Thunderstorms this evening will be capable of damaging wind gusts, large hail, and strong tornadoes.
- A period of cool, calm weather is expected mid-week through the weekend.
Area forecast discussion, Apr 27, 6:54 PM CDT, 59 minutes before
Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
654 PM CDT Mon Apr 27 2026
.KEY MESSAGES...
- While periods of storms are expected through Monday morning, the
most potent thunderstorms will occur through early evening.
- Thunderstorms this evening will be capable of damaging wind
gusts, large hail, and strong tornadoes.
- A period of cool, calm weather is expected mid-week through the
weekend.
&&
.SHORT TERM...THROUGH TUESDAY NIGHT/...
Issued at 456 PM CDT Mon Apr 27 2026
(Through Tuesday Night)
Issued at 155 AM CDT Mon Apr 27 2026
Storms across southeastern Missouri continue to butt up against an
instability gradient draped from north to south across Missouri.
The warm air advection feeding these storms will also push greater
instability slowly northeastward through this morning, though
propagation vectors will favor convection continuing to move east-
southeastward generally away from the CWA or into an unfavorable
environment. Additionally, the low-level jet refocusing across
Kansas will continue to support the downward trend in convection
across southeastern Missouri early this morning. Any linger storms
over the next couple of hours will be capable mainly of large hail,
though there is also a very low damaging wind and tornado threat for
storms that remain surface based.
Our attention turns to the storms over eastern Kansas that are
propagating eastward with the nose of the low-level jet. With the
nose of this low-level jet edging into northeastern Missouri later
this morning, the focus for these storms will spread into portions
of the CWA north of I-70. Vertical thermal profiles suggest that this
convection will be elevated, mitigating a threat of damaging wind
gusts and/or tornadoes. However, with around 40 kts of effective
shear and building MUCAPE, there is a low chance for isolated
instances of large hail.
How long this convection lingers is uncertain, although guidance
trends have been toward a lull in convective activity in the wake of
this convection and that associated with a cold front during the
late afternoon and evening. Ahead of the front, the warm sector
remains capped through much of the afternoon per a majority of
deterministic soundings. Although, any remnant outflow or
differential heating boundary from early day convection may serve as
enough of a forcing mechanism to spawn discrete convection during
the afternoon as lift from an approaching shortwave increases over
the region. If this convection does form, it will be in an
environment characterized by 2,000-2,500 J/kg of SBCAPE and roughly
50 kts of deep-layer shear. This will favor supercells capable of
all hazards, with long curved hodographs favoring strong tornadoes,
especially if storms are able to latch on to any remnant boundaries
across the CWA.
Where the environment isn't contaminated from earlier rounds of
convection, additional updrafts are expected along the cold front as
it enters the area 4-5pm. Forcing from the front paired with lift
from the shortwave will lead to numerous updrafts along the front.
While this will be occurring within a similar environment detailed
prior, the number of updrafts paired with them occurring along the
front may lead to destructive interactions and congealing into line
segments and/or clusters. While this will tend to limit a strong
tornado threat, storms will still be capable of all severe hazards.
Convection is expected to depart the CWA with the front by 9-10pm.
Even with the FROPA Monday evening, the threat for convection will
continue on Tuesday. Guidance consensus has the front stalling just
south of the CWA early Tuesday and then buckling northward as a
shortwave moves through the Central Plains and into the Midwest
through the day. This shortwave will send a subtle surface
reflection through the Mid South along the front, with a brief
period of warm air advection that will help force elevated
convection for areas mainly along and south of I-70. If the front
can move northward enough, shear profiles and instability amounts
favor supercells capable primarily of large hail across far
southeastern Missouri during the afternoon. Waning instability and
the front continuing southward will bring an end to rain chances
during the evening.
Elmore
&&
.LONG TERM...WEDNESDAY THROUGH MONDAY/...
Issued at 456 PM CDT Mon Apr 27 2026
(Tuesday Night through Sunday)
Issued at 155 AM CDT Mon Apr 27 2026
Both deterministic guidance and ensemble clusters keep upper-level
troughing slowly moving eastward over the eastern CONUS through the
long range forecast period. This will maintain northwesterly flow
over the Middle Mississippi Valley through Saturday as several
rounds of high pressure pass through the region. As a result,
temperatures will run at or below climatological normals into the
weekend and mostly dry weather is expected.
Elmore
&&
.AVIATION... (For the 00z TAFs through 00z Tuesday Evening)
Issued at 654 PM CDT Mon Apr 27 2026
Ongoing line of strong to severe thunderstorms moving through the
STL Metro area at the start of this TAF period. Storms along this
line will be capable of damaging winds, large hail and tornadoes.
The line will gradually move east-southeast and exit the forecast
area by 03-04Z. Remainder of the period will generally see calmer
conditions with VFR cloud cover. However, another round of showers
and isolated TSRA will spread into the forecast area from the
southwest after 18-20Z Tuesday. This will mostly impact COU/JEF
during this TAF period, but could spread MVFR ceilings into the
SUS/STL vicinity after 28/23Z.
SPECIFICS FOR KSTL: Broken line of +TSRA will bring a potential
for erratic, possibly damaging winds to STL through 01Z-02Z. Radar
trends show the strongest thunderstorm cores skirting around the
terminal, though additional development is possible within the
next hour. After TSRA exit to the east, VFR conditions dominate
until late in this TAF period (after 29/02Z) when MVFR conditions
could move in from the southwest.
WFO LSX
&&
.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Flood Watch until 9 PM CDT this evening for Audrain MO-Boone MO-
Callaway MO-Cole MO-Franklin MO-Gasconade MO-Jefferson MO-
Lincoln MO-Moniteau MO-Montgomery MO-Osage MO-Pike MO-Saint
Charles MO-Saint Louis City MO-Saint Louis MO-Warren MO.
IL...Flood Watch until 9 PM CDT this evening for Bond IL-Calhoun IL-
Clinton IL-Fayette IL-Greene IL-Jersey IL-Macoupin IL-
Madison IL-Marion IL-Monroe IL-Montgomery IL-Saint Clair IL-
Washington IL.
&&
WFO LSXHazardous weather outlook, Apr 27, 2:02 AM CDT, 17 hours 51 minutes before
Hazardous Weather Outlook National Weather Service St Louis MO 202 AM CDT Mon Apr 27 2026 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-280715- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 202 AM CDT Mon Apr 27 2026 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Today and tonight. Periods of thunderstorms are expected through the day into this evening. Thunderstorms this afternoon and evening will be capable of large hail, damaging wind gusts, and tornadoes. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is a chance of thunderstorms Tuesday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report wind damage, hail occurrence and size, and tornado occurrence to NWS St. Louis. Elmore
In the hours before
Local storm report, Apr 27, 7:30 PM CDT, 23 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
730 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0720 PM Rain Catawissa 38.43N 90.78W
04/27/2026 M1.76 Inch Franklin MO Trained Spotter
Rainfall in the last hour.
&&
BrittLocal storm report, Apr 27, 7:33 PM CDT, 20 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
733 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0710 PM Tstm Wnd Dmg Florissant 38.80N 90.32W
04/27/2026 St. Louis MO Public
4 buildings collapsed in Florissant.
&&Local storm report, Apr 27, 7:35 PM CDT, 18 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
735 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0730 PM Tstm Wnd Gst Hamel 38.89N 89.84W
04/27/2026 E70 MPH Madison IL Public
&&Local storm report, Apr 27, 7:44 PM CDT, 9 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
744 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 PM Tstm Wnd Dmg 2 SE Belleville 38.51N 89.98W
04/27/2026 St. Clair IL Emergency Mngr
*** 3 INJ ***
tree onto a house with potential injuries.
&&Local storm report, Apr 27, 7:47 PM CDT, 6 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
747 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0558 PM Hail 1 N Jerseyville 39.14N 90.32W
04/27/2026 E1.00 Inch Jersey IL Public
Report from mPING: Quarter (1.00 in.).
0626 PM Hail 2 S Gerald 38.36N 91.32W
04/27/2026 M1.25 Inch Franklin MO Public
0644 PM Hail 1 SW Pacific 38.47N 90.76W
04/27/2026 E1.00 Inch Franklin MO Public
Report from mPING: Quarter (1.00 in.).
0648 PM Hail 2 E Gray Summit 38.49N 90.79W
04/27/2026 E1.25 Inch Franklin MO Public
Report from mPING: Half Dollar (1.25 in.).
0654 PM Hail 4 N Pacific 38.53N 90.75W
04/27/2026 E2.00 Inch Franklin MO Public
Report from mPING: Hen Egg (2.00 in.).
0655 PM Hail 2 NW Alton 38.93N 90.19W
04/27/2026 E1.50 Inch Madison IL Public
Report from mPING: Ping Pong Ball (1.50
in.).
0658 PM Hail 2 SW Clarkson Valley 38.60N 90.62W
04/27/2026 E1.00 Inch St. Louis MO Public
Report from mPING: Quarter (1.00 in.).
0659 PM Hail 1 NE Alton 38.91N 90.13W
04/27/2026 E1.00 Inch Madison IL Public
Report from mPING: Quarter (1.00 in.).
0700 PM Hail 2 N Wood River 38.89N 90.08W
04/27/2026 E1.25 Inch Madison IL Public
0707 PM Hail 1 NW Bethalto 38.91N 90.06W
04/27/2026 E1.75 Inch Madison IL Public
Report from mPING: Golf Ball (1.75 in.).
0708 PM Hail Bunker Hill 39.04N 89.95W
04/27/2026 E1.00 Inch Macoupin IL Public
Report from mPING: Quarter (1.00 in.).
0709 PM Hail 1 S Bunker Hill 39.02N 89.95W
04/27/2026 E1.00 Inch Macoupin IL Public
Report from mPING: Quarter (1.00 in.).
0711 PM Hail 3 W Carpenter 38.91N 89.95W
04/27/2026 E1.00 Inch Madison IL Public
Report from mPING: Quarter (1.00 in.).
0715 PM Hail 3 W Carpenter 38.91N 89.95W
04/27/2026 E1.25 Inch Madison IL Public
Report from mPING: Half Dollar (1.25 in.).
0718 PM Hail 2 S Benld 39.06N 89.81W
04/27/2026 E1.00 Inch Macoupin IL Public
Report from mPING: Quarter (1.00 in.).
0720 PM Hail Staunton 39.01N 89.78W
04/27/2026 E1.00 Inch Macoupin IL Public
Report from mPING: Quarter (1.00 in.).
0733 PM Hail 3 SE Columbia 38.43N 90.18W
04/27/2026 E1.00 Inch Monroe IL Public
Report from mPING: Quarter (1.00 in.).
&&Local storm report, Apr 27, 7:50 PM CDT, 3 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
750 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0720 PM Tstm Wnd Dmg 1 E Richmond Heights 38.63N 90.31W
04/27/2026 St. Louis City MO Emergency Mngr
power line down on McCausland.
&&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
0.9 hours before the tornado, 200 km from the path. April 28, 2026.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -871 J/kg
- Surface CAPE
- 0 J/kg
- Mixed-layer LCL
- 1082 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- -57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 4.1 K/km
Lincoln, IL (KILX), 12:00Z
11.1 hours after it, 200 km from the path. April 28, 2026.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -15410 J/kg
- Surface CAPE
- 32 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 2.5 K/km
The radar
The St Louis radar (KLSX), 84 km away, was scanning. The volume nearest the touchdown began at 00:55 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 |
|---|---|---|---|---|
| 23:50 UTC | HAIL 1.75 | Alton | Madison, IL | |
| 23:52 UTC | HAIL 1 | 2 S Godfrey | Madison, IL | Hail from the sizes of dimes to quarters. |
| 23:54 UTC | HAIL 1 | 1 S Godfrey | Madison, IL | |
| 23:55 UTC | HAIL 1.5 | 2 Nw Alton | Madison, IL | Report from mPING: Ping Pong Ball (1.50 in.). |
| 23:56 UTC | HAIL 2 | 2 Wnw Bethalto | Madison, IL | |
| 23:59 UTC | HAIL 1 | 1 Ne Alton | Madison, IL | Report from mPING: Quarter (1.00 in.). |
| 00:00 UTC | HAIL 1.25 | 2 N Wood River | Madison, IL | |
| 00:03 UTC | HAIL 1.25 | Bethalto | Madison, IL | |
| 00:07 UTC | HAIL 1.75 | 1 Nw Bethalto | Madison, IL | Report from mPING: Golf Ball (1.75 in.). |
| 00:08 UTC | HAIL 1 | Bunker Hill | Macoupin, IL | Report from mPING: Quarter (1.00 in.). |
| 00:09 UTC | HAIL 1 | 1 S Bunker Hill | Macoupin, IL | Report from mPING: Quarter (1.00 in.). |
| 00:10 UTC | HAIL 1 | Dorsey | Madison, IL | |
| 00:10 UTC | HAIL 1.25 | Bethalto | Madison, IL | |
| 00:11 UTC | HAIL 1 | 3 W Carpenter | Madison, IL | Report from mPING: Quarter (1.00 in.). |
| 00:13 UTC | HAIL 1.75 | 3 Ssw Prairietown | Madison, IL | |
| 00:15 UTC | FLOOD | Bethalto | Madison, IL | Around 6 in of standing water on Prairie St. |
| 00:15 UTC | FLOOD | Bethalto | Madison, IL | Around 6 in of standing water on Prairie St. |
| 00:15 UTC | HAIL 1.25 | 3 W Carpenter | Madison, IL | Report from mPING: Half Dollar (1.25 in.). |
| 00:18 UTC | HAIL 1 | 2 S Benld | Macoupin, IL | Report from mPING: Quarter (1.00 in.). |
| 00:20 UTC | HAIL 1 | Staunton | Macoupin, IL | |
| 00:20 UTC | HAIL 1 | Staunton | Macoupin, IL | Report from mPING: Quarter (1.00 in.). |
| 00:22 UTC | TSTM WND DMG | Hamel | Madison, IL | Large portion of tree down onto house. |
| 00:25 UTC | HAIL 1 | 1 Nw Kuhn | Madison, IL | |
| 00:30 UTC | TSTM WND DMG | Hamel | Madison, IL | Large tree limb blown down onto house. |
| 00:30 UTC | TSTM WND GST 70 | Hamel | Madison, IL | |
| 00:33 UTC | HAIL 1 | 3 Se Columbia | Monroe, IL | Report from mPING: Quarter (1.00 in.). |
| 00:35 UTC | TSTM WND DMG | 2 Se Belleville | St. Clair, IL | *** 3 INJ *** tree onto a house with potential injuries. |
| 00:40 UTC | TSTM WND DMG | 2 Se Swansea | St. Clair, IL | 4 to 5 in diameter tree limb down. |
| 00:40 UTC | TSTM WND GST 55 | 1 S Swansea | St. Clair, IL | |
| 00:41 UTC | TSTM WND DMG | Scott Afb | St. Clair, IL | Multiple large tree limbs snapped. |
| 00:53 UTC | TORNADO | 3 Ene Scott Afb | St. Clair, IL | NWS Damage Survey found that an EF1 tornado formed along IL Highway 4 north of Interstate 64, moving northeastward, dissipating southeast of Trenton. |
| 01:06 UTC | TORNADO | 2 Wsw Germantown | Clinton, IL | NWS Damage Survey found that an EF1 tornado formed southwest of Germantown and tracked northeastward to just south of Carlyle. |
| 01:08 UTC | TORNADO | Germantown | Clinton, IL | Large trees down, street signs blown down. |
| 01:30 UTC | TSTM WND DMG | Centralia | Marion, IL | power lines down all over town. time estimated. |
| 01:35 UTC | TSTM WND DMG | Centralia | Marion, IL | Power poles and tree damage. |
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 27, 2026
28 more have been surveyed in the United States that day, so far.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| April 27 | 3:31 AM CDT | EF1 | Leavenworth, KS | 2.1 | 50 | |||
| April 27 | 5:38 AM CDT | EF0 | Johnson, KS | 0.1 | 0 | |||
| April 27 | 5:45 AM CDT | EF1 | Johnson, KS | 0.1 | 0 | |||
| April 27 | 6:52 AM CDT | EF2 | Saline, MO | 36.5 | 350 | |||
| April 27 | 7:11 AM CDT | EF1 | Chariton, MO | 24.5 | 300 | |||
| April 27 | 7:29 AM CDT | EF0 | Randolph, MO | 8.6 | 50 | |||
| April 27 | 7:43 AM CDT | EF1 | Monroe, MO | 1.8 | 400 | |||
| April 27 | 1:41 PM CDT | EF0 | Madison, IL | 0.3 | 25 | |||
| April 27 | 4:44 PM EDT | EF1 | Jackson, IN | 3.7 | 100 | |||
| April 27 | 6:14 PM CDT | EF1 | Logan, IL | 14.9 | 400 | |||
| April 27 | 6:32 PM CDT | EF1 | DeWitt, IL | 6.0 | 400 | |||
| April 27 | 6:41 PM CDT | EF1 | DeWitt, IL | 14.1 | 500 | |||
| April 27 | 6:42 PM CDT | EF1 | DeWitt, IL | 0.6 | 75 | |||
| April 27 | 6:48 PM CDT | Unrated | Saint Charles, MO | 0.6 | 10 | |||
| April 27 | 6:55 PM CDT | EF1 | Piatt, IL | 15.5 | 500 | |||
| April 27 | 7:52 PM CDT | EF1 | Cleburne, AR | 1.4 | 100 | |||
| April 27 | 8:02 PM CDT | EF0 | Shannon, MO | 3.5 | 150 | |||
| April 27 | 8:06 PM CDT | EF1 | Clinton, IL | 11.7 | 350 | |||
| April 27 | 10:50 PM EDT | EF1 | Morgan, IN | 2.7 | 150 | |||
| April 27 | 10:54 PM EDT | EF0 | Morgan, IN | 0.8 | 50 | |||
| April 27 | 10:30 PM CDT | EF1 | Stone, AR | 13.5 | 400 | |||
| April 27 | 11:56 PM CDT | EF0 | Hopkins, KY | 3.2 | 50 | |||
| April 27 | 12:08 AM CDT | EF1 | McLean, KY | 7.0 | 125 | |||
| April 27 | 12:16 AM CDT | EF0 | Jackson, AR | 0.6 | 50 | |||
| April 27 | 12:19 AM CDT | EF0 | Ohio, KY | 1.9 | 150 | |||
| April 27 | 12:25 AM CDT | EF0 | Dyer, TN | 1.0 | 100 | |||
| April 27 | 12:30 AM CDT | EF1 | Ohio, KY | 1.8 | 110 | |||
| April 27 | 12:48 AM CDT | Unrated | Poinsett, AR | 0.5 | 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.