Alert archive / Illinois / Tornado Warnings in 2026
Tornado Warning 73, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 21, 2026, 5:50 PM CDT for Clinton County, Illinois. It was in force for 32 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, 5:50 PM CDT (22:50 UTC)
- Expired
- Jun 21, 2026, 6:22 PM CDT
- In force
- 32 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
County Clinton County, IL
The radar
The St Louis radar (KLSX), 113 km from the middle of the area, began a volume at 22:54 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 1:28 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.8 hours before the alert went out and 183 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.
- 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
The text
As transmitted.
810
WFUS53 KLSX 212250
TORLSX
ILC027-212330-
/O.NEW.KLSX.TO.W.0073.260621T2250Z-260621T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
550 PM CDT Sun Jun 21 2026
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northeastern Clinton County in south central Illinois...
* Until 630 PM CDT.
* At 550 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Breese, moving east at 30 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...
Breese, Stolletown, Beckemeyer, Carlyle, Huey, Hoffman, Ferrin,
Boulder, Shattuc and Wamac.
This includes the following State Parks...
Eldon Hazlet State Recreation Area.
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 3859 8955 3870 8953 3870 8914 3850 8914
TIME...MOT...LOC 2250Z 274DEG 26KT 3864 8948
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
BSH3 follow-up statements
398
WWUS53 KLSX 212258
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
558 PM CDT Sun Jun 21 2026
ILC027-212330-
/O.CON.KLSX.TO.W.0073.000000T0000Z-260621T2330Z/
Clinton IL-
558 PM CDT Sun Jun 21 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHEASTERN CLINTON COUNTY...
At 558 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Carlyle, moving east at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Beckemeyer, Carlyle, Huey, Hoffman, Ferrin, Shattuc and Wamac.
This includes the following State Parks...
Eldon Hazlet State Recreation Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3861 8946 3867 8945 3870 8914 3850 8914
3850 8915
TIME...MOT...LOC 2250Z 274DEG 26KT 3864 8948
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
BSH401
WWUS53 KLSX 212306
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
606 PM CDT Sun Jun 21 2026
ILC027-212330-
/O.CON.KLSX.TO.W.0073.000000T0000Z-260621T2330Z/
Clinton IL-
606 PM CDT Sun Jun 21 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHEASTERN CLINTON COUNTY...
At 606 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Carlyle, moving east at 35 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...
Carlyle, Huey, Ferrin, Shattuc and Wamac.
This includes the following State Parks...
Eldon Hazlet State Recreation Area.
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 3861 8937 3867 8936 3870 8914 3850 8914
3850 8916
TIME...MOT...LOC 2258Z 274DEG 28KT 3864 8940
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
BSH662
WWUS53 KLSX 212322
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
622 PM CDT Sun Jun 21 2026
ILC027-212332-
/O.CAN.KLSX.TO.W.0073.000000T0000Z-260621T2330Z/
Clinton IL-
622 PM CDT Sun Jun 21 2026
...TORNADO WARNING IS CANCELLED FOR NORTHEASTERN CLINTON COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 900 PM CDT for a portion of
south central Illinois.
&&
LAT...LON 3861 8937 3867 8936 3870 8914 3850 8914
3850 8916
TIME...MOT...LOC 2306Z 274DEG 28KT 3863 8932
$$
BSHThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 2:47 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 43 min |
| Jun 21, 2:54 PM CDT | Tornado Warning | LSX | Bond, Madison | 36 min |
| Jun 21, 3:03 PM CDT | Tornado Warning | LSX | Fayette | 15 min |
| Jun 21, 3:23 PM CDT | Tornado Warning | LSX | Bond, Fayette | 52 min |
| Jun 21, 3:26 PM CDT | Flash Flood Warning | LSX | Bond, Fayette, Montgomery | 4 hr |
| Jun 21, 3:44 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Jun 21, 3:45 PM CDT | Tornado Warning | LSX | Fayette, Marion | 60 min |
| Jun 21, 4:27 PM CDT | Flash Flood Warning | LSX | Marion | 6 hr |
| Jun 21, 5:02 PM CDT | Tornado Warning | LSX | Clinton, Madison, Saint Clair | 43 min |
| Jun 21, 5:07 PM CDT | Tornado Warning | LSX | Bond, Fayette, Marion | 38 min |
| Jun 21, 5:19 PM CDT | Tornado Warning | LSX | Fayette, Marion | 41 min |
| Jun 21, 5:35 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion | 70 min |
| Jun 21, 5:40 PM CDT | Tornado Warning | LSX | Marion | 39 min |
| Jun 21, 5:43 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 39 min |
| Jun 21, 6:08 PM CDT | Tornado Warning | LSX | Marion | 10 min |
| Jun 21, 6:15 PM CDT | Tornado Warning | LSX | Marion | 37 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.