Alert archive / Illinois / Tornado Warnings in 2026
Tornado Warning 72, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 21, 2026, 5:40 PM CDT for Marion County, Illinois. It was in force for 39 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, 5:40 PM CDT (22:40 UTC)
- Expired
- Jun 21, 2026, 6:19 PM CDT
- In force
- 39 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
County Marion County, IL
The radar
The Evansville,IN radar (KVWX), 107 km from the middle of the area, began a volume at 22:43 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, 10.7 hours before the alert went out and 173 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.
528
WFUS53 KLSX 212240
TORLSX
ILC121-212330-
/O.NEW.KLSX.TO.W.0072.260621T2240Z-260621T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
540 PM CDT Sun Jun 21 2026
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Southeastern Marion County in south central Illinois...
* Until 630 PM CDT.
* At 540 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Salem, moving east at 20 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...
Salem, Cartter, Iuka and Helm.
This includes Interstate 57 in Illinois near exit 116.
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 3866 8898 3868 8870 3851 8870 3855 8899
TIME...MOT...LOC 2240Z 272DEG 19KT 3860 8893
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
BSH4 follow-up statements
369
WWUS53 KLSX 212255
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
555 PM CDT Sun Jun 21 2026
ILC121-212330-
/O.CON.KLSX.TO.W.0072.000000T0000Z-260621T2330Z/
Marion IL-
555 PM CDT Sun Jun 21 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHEASTERN MARION COUNTY IN SOUTH CENTRAL ILLINOIS...
At 555 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Odin, or 5 miles northeast of Centralia, moving east
at 25 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Salem, Cartter, Iuka and Helm.
This includes Interstate 57 in Illinois near exit 116.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3866 8898 3868 8870 3851 8870 3855 8899
TIME...MOT...LOC 2240Z 267DEG 21KT 3855 8916
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
BSH186
WWUS53 KLSX 212300
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
600 PM CDT Sun Jun 21 2026
ILC121-212330-
/O.CON.KLSX.TO.W.0072.000000T0000Z-260621T2330Z/
Marion IL-
600 PM CDT Sun Jun 21 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHEASTERN MARION COUNTY IN SOUTH CENTRAL ILLINOIS...
At 600 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles southeast of Odin, or 6 miles southwest of Salem,
moving east at 25 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...
Salem, Cartter, Iuka and Helm.
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 8898 3868 8870 3851 8870 3855 8899
TIME...MOT...LOC 2255Z 267DEG 21KT 3855 8904
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
BSH603
WWUS53 KLSX 212308
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
608 PM CDT Sun Jun 21 2026
ILC121-212330-
/O.CON.KLSX.TO.W.0072.000000T0000Z-260621T2330Z/
Marion IL-
608 PM CDT Sun Jun 21 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHEASTERN MARION COUNTY IN SOUTH CENTRAL ILLINOIS...
At 608 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southeast of Salem, moving east at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Helm.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3855 8894 3861 8870 3851 8870
TIME...MOT...LOC 2300Z 270DEG 27KT 3855 8897
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
BSH773 WWUS53 KLSX 212319 SVSLSX Severe Weather Statement National Weather Service St Louis MO 619 PM CDT Sun Jun 21 2026 ILC121-212329- /O.CAN.KLSX.TO.W.0072.000000T0000Z-260621T2330Z/ Marion IL- 619 PM CDT Sun Jun 21 2026 ...TORNADO WARNING IS CANCELLED FOR SOUTHEASTERN MARION COUNTY IN SOUTH CENTRAL ILLINOIS... The Tornado Warning that was previously in effect has been reissued for Marion County and is in effect until 715 PM CDT. Please refer to that bulletin for the latest severe weather information. A Tornado Watch remains in effect until 900 PM CDT for a portion of south central Illinois. && LAT...LON 3855 8894 3861 8870 3851 8870 TIME...MOT...LOC 2308Z 271DEG 27KT 3855 8889 $$ BSH
The 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, 5:43 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 39 min |
| Jun 21, 5:50 PM CDT | Tornado Warning | LSX | Clinton | 32 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.