Alert archive / Illinois / Tornado Warnings in 2026
Tornado Warning 64, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 17, 2026, 8:39 PM CDT for Fayette County, Illinois. It was in force for 26 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 17, 2026, 8:39 PM CDT (01:39 UTC)
- Expired
- Jun 17, 2026, 9:05 PM CDT
- In force
- 26 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Fayette County, IL
The radar
The Lincoln radar (KILX), 122 km from the middle of the area, began a volume at 01:40 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 17, 2:14 PM CDT | Tornado Watch | SPC | 11 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 1.7 hours before the alert went out and 121 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
- 611 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 895 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.5
The text
As transmitted.
935
WFUS53 KLSX 180139
TORLSX
ILC051-180215-
/O.NEW.KLSX.TO.W.0064.260618T0139Z-260618T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
839 PM CDT Wed Jun 17 2026
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northeastern Fayette County in south central Illinois...
* Until 915 PM CDT.
* At 839 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Wrights Corner, or 13 miles northeast of Vandalia,
moving east at 60 mph.
HAZARD...Tornado and quarter size hail.
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.
* This tornado will be near...
Wrights Corner and St. Elmo around 845 PM CDT.
This includes Interstate 70 in Illinois near exit 76.
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 3903 8905 3922 8901 3922 8881 3898 8881
TIME...MOT...LOC 0139Z 278DEG 53KT 3913 8895
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Elmore2 follow-up statements
843
WWUS53 KLSX 180155
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
855 PM CDT Wed Jun 17 2026
ILC051-180215-
/O.CON.KLSX.TO.W.0064.000000T0000Z-260618T0215Z/
Fayette IL-
855 PM CDT Wed Jun 17 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
NORTHEASTERN FAYETTE COUNTY...
At 855 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Wrights Corner, or 16 miles northeast of Vandalia,
moving east at 45 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
This tornado will be near...
St. Elmo and Wrights Corner around 900 PM CDT.
This includes Interstate 70 in Illinois near exit 76.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3902 8898 3918 8898 3919 8881 3898 8881
TIME...MOT...LOC 0139Z 278DEG 39KT 3911 8907
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Elmore959 WWUS53 KLSX 180205 SVSLSX Severe Weather Statement National Weather Service St Louis MO 905 PM CDT Wed Jun 17 2026 ILC051-180215- /O.CAN.KLSX.TO.W.0064.000000T0000Z-260618T0215Z/ Fayette IL- 905 PM CDT Wed Jun 17 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. && LAT...LON 3902 8898 3918 8898 3919 8881 3898 8881 TIME...MOT...LOC 0155Z 278DEG 39KT 3909 8885 $$ Elmore
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 7:49 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 15 min |
| Jun 17, 7:53 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 42 min |
| Jun 17, 8:09 PM CDT | Tornado Warning | LSX | Fayette, Montgomery | 41 min |
| Jun 17, 10:13 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 17 min |
| Jun 18, 11:43 AM CDT | River Flood Warning | LSX | Brown | 18 days |
| Jun 18, 11:43 AM CDT | River Flood Warning | LSX | Morgan, Pike | 21 days |
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.