Alert archive / Illinois / Tornado Warnings in 2026

Tornado Warning 66, NWS St. Louis, MO

June 21, 2026Fayette County, Illinois

NWS St. Louis, MO issued this tornado warning at Jun 21, 2026, 3:03 PM CDT for Fayette County, Illinois. It was in force for 15 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 21, 2026, 3:03 PM CDT (20:03 UTC)
Expired
Jun 21, 2026, 3:18 PM CDT
In force
15 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Fayette County, IL

The radar

The Lincoln radar (KILX), 122 km from the middle of the area, began a volume at 20:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 21, 1:28 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.1 hours before the alert went out and 116 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2026-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2026-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1482 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

436 
WFUS53 KLSX 212003
TORLSX
ILC051-212030-
/O.NEW.KLSX.TO.W.0066.260621T2003Z-260621T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
303 PM CDT Sun Jun 21 2026

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northeastern Fayette County in south central Illinois...

* Until 330 PM CDT.

* At 303 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Wrights Corner, or 19 miles northeast of Vandalia,
  moving east at 40 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without
           shelter. Mobile homes will be damaged or destroyed. Damage
           to roofs, windows and vehicles will occur. Tree damage is
           likely.

* Locations impacted include...
  Wrights Corner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.

&&

LAT...LON 3906 8885 3920 8889 3922 8881 3906 8881
TIME...MOT...LOC 2003Z 259DEG 34KT 3913 8881

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Carney
1 follow-up statement
206 
WWUS53 KLSX 212018
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
318 PM CDT Sun Jun 21 2026

ILC051-212028-
/O.CAN.KLSX.TO.W.0066.000000T0000Z-260621T2030Z/
Fayette IL-
318 PM CDT Sun Jun 21 2026

...TORNADO WARNING IS CANCELLED FOR NORTHEASTERN FAYETTE COUNTY...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However, heavy rain is
still possible with this thunderstorm.

A Severe Thunderstorm Warning still remains in effect for Fayette
County until 330 PM.

A Tornado Watch remains in effect until 900 PM CDT Sunday for a
portion of south central Illinois.

&&

LAT...LON 3906 8885 3920 8889 3922 8881 3906 8881
TIME...MOT...LOC 2003Z 259DEG 34KT 3913 8881

$$

Carney

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 21, 2:47 PM CDTSevere Thunderstorm WarningLSXFayette43 min
Jun 21, 2:54 PM CDTTornado WarningLSXBond, Madison36 min
Jun 21, 3:23 PM CDTTornado WarningLSXBond, Fayette52 min
Jun 21, 3:26 PM CDTFlash Flood WarningLSXBond, Fayette, Montgomery4 hr
Jun 21, 3:44 PM CDTFlash Flood WarningLSXFayette6 hr
Jun 21, 3:45 PM CDTTornado WarningLSXFayette, Marion60 min
Jun 21, 4:27 PM CDTFlash Flood WarningLSXMarion6 hr
Jun 21, 5:02 PM CDTTornado WarningLSXClinton, Madison, Saint Clair43 min
Jun 21, 5:07 PM CDTTornado WarningLSXBond, Fayette, Marion38 min
Jun 21, 5:19 PM CDTTornado WarningLSXFayette, Marion41 min
Jun 21, 5:35 PM CDTSevere Thunderstorm WarningLSXClinton, Marion70 min
Jun 21, 5:40 PM CDTTornado WarningLSXMarion39 min
Jun 21, 5:43 PM CDTSevere Thunderstorm WarningLSXClinton39 min
Jun 21, 5:50 PM CDTTornado WarningLSXClinton32 min
Jun 21, 6:08 PM CDTTornado WarningLSXMarion10 min
Jun 21, 6:15 PM CDTTornado WarningLSXMarion37 min

Nearby

Tornado Warnings in Illinois, 2026Every tornado warning in 2026Tornadoes in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.