Alert archive / Illinois / Tornado Warnings in 2026
Tornado Warning 35, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 27, 2026, 1:49 PM CDT for Bond County, Madison County, Illinois. It was in force for 14 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
- Apr 27, 2026, 1:49 PM CDT (18:49 UTC)
- Expired
- Apr 27, 2026, 2:03 PM CDT
- In force
- 14 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Bond County, IL, Madison County, IL
The radar
The St Louis radar (KLSX), 97 km from the middle of the area, began a volume at 18:48 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 |
|---|---|---|---|
| Apr 27, 8:31 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 27, 12:50 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 6.8 hours before the alert went out and 169 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
- 1053 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 306 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
254
WFUS53 KLSX 271849
TORLSX
ILC005-119-271945-
/O.NEW.KLSX.TO.W.0035.260427T1849Z-260427T1945Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
149 PM CDT Mon Apr 27 2026
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Bond County in south central Illinois...
East Central Madison County in southwestern Illinois...
* Until 245 PM CDT.
* At 149 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Marine, or near Highland, 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...
Alhambra, Highland, Grantfork, Pierron, Old Ripley, Pocahontas,
Dudleyville, Greenville, Beaver Creek and Smithboro.
This includes Interstate 70 in Illinois between exits 30 and 45.
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 3874 8972 3890 8976 3900 8936 3874 8930
TIME...MOT...LOC 1849Z 261DEG 22KT 3880 8974
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
$$
Elmore2 follow-up statements
872
WWUS53 KLSX 271859
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
159 PM CDT Mon Apr 27 2026
ILC005-119-271945-
/O.CON.KLSX.TO.W.0035.000000T0000Z-260427T1945Z/
Bond IL-Madison IL-
159 PM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM CDT FOR BOND COUNTY
IN SOUTH CENTRAL ILLINOIS AND EAST CENTRAL MADISON COUNTY IN
SOUTHWESTERN ILLINOIS...
At 159 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Highland, moving east at 25 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Highland, Grantfork, Pierron, Old Ripley, Pocahontas, Dudleyville,
Greenville, Beaver Creek and Smithboro.
This includes Interstate 70 in Illinois between exits 30 and 45.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3874 8970 3891 8972 3900 8936 3874 8930
TIME...MOT...LOC 1849Z 261DEG 22KT 3880 8974
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
$$
Elmore811 WWUS53 KLSX 271903 SVSLSX Severe Weather Statement National Weather Service St Louis MO 203 PM CDT Mon Apr 27 2026 ILC005-119-271913- /O.CAN.KLSX.TO.W.0035.000000T0000Z-260427T1945Z/ Bond IL-Madison IL- 203 PM CDT Mon Apr 27 2026 ...TORNADO WARNING IS CANCELLED FOR BOND COUNTY IN SOUTH CENTRAL ILLINOIS AND EAST CENTRAL MADISON COUNTY IN SOUTHWESTERN ILLINOIS... The storm which prompted the warning has weakened below severe limits, and no longer appears capable of producing a tornado. Therefore, the warning has been cancelled. A Tornado Warning still remains in effect for southwestern Madison County. A Tornado Watch remains in effect until 900 PM CDT Monday for portions of south central and southwest Illinois. && LAT...LON 3874 8970 3891 8972 3900 8936 3874 8930 TIME...MOT...LOC 1859Z 261DEG 22KT 3881 8966 $$ Elmore
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 6:32 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 43 min |
| Apr 27, 7:03 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion, Washington | 57 min |
| Apr 27, 7:59 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin, Montgomery | 33 min |
| Apr 27, 8:10 AM CDT | Severe Thunderstorm Warning | LSX | Adams, Calhoun, Pike | 65 min |
| Apr 27, 8:24 AM CDT | Tornado Warning | LSX | Calhoun, Pike | 51 min |
| Apr 27, 8:57 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Pike | 48 min |
| Apr 27, 9:03 AM CDT | Tornado Warning | LSX | Greene, Pike | 42 min |
| Apr 27, 9:44 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin | 61 min |
| Apr 27, 10:29 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 61 min |
| Apr 27, 10:52 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 42 min |
| Apr 27, 11:18 AM CDT | Flood Watch | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 7 more | 10 hr |
| Apr 27, 12:09 PM CDT | Areal Flood Advisory | LSX | Calhoun | 3 hr |
| Apr 27, 12:27 PM CDT | Tornado Warning | LSX | Madison, Saint Clair | 48 min |
| Apr 27, 1:07 PM CDT | Flash Flood Warning | LSX | Fayette, Montgomery | 7 hr |
| Apr 27, 1:13 PM CDT | Tornado Warning | LSX | Madison | 47 min |
| Apr 27, 1:55 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 45 min |
| Apr 27, 2:01 PM CDT | Tornado Warning | LSX | Madison, Saint Clair | 27 min |
| Apr 27, 2:30 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison | 27 min |
| Apr 27, 3:05 PM CDT | River Flood Warning | LSX | Jackson, Randolph | 8 days |
| Apr 27, 3:13 PM CDT | River Flood Warning | LSX | Pike, Scott | 9 days |
| Apr 27, 3:14 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey, Madison | 46 min |
| Apr 27, 3:16 PM CDT | River Flood Warning | LSX | Fayette | 4 days |
| Apr 27, 3:19 PM CDT | Tornado Warning | LSX | Calhoun, Jersey, Madison | 41 min |
| Apr 27, 3:46 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 44 min |
| Apr 27, 3:52 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin, Madison | 38 min |
| Apr 27, 4:20 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 55 min |
| Apr 27, 4:34 PM CDT | Tornado Warning | LSX | Adams, Brown | 29 min |
| Apr 27, 4:46 PM CDT | Tornado Warning | LSX | Calhoun, Pike | 44 min |
| Apr 27, 4:52 PM CDT | Flash Flood Warning | LSX | Adams, Pike | 4 hr |
| Apr 27, 5:20 PM CDT | Flash Flood Warning | LSX | Brown, Pike | 3 hr |
| Apr 27, 5:21 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Pike | 39 min |
| Apr 27, 5:27 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 33 min |
| Apr 27, 5:32 PM CDT | Flash Flood Warning | LSX | Jersey | 5 hr |
| Apr 27, 5:32 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey, Macoupin | 43 min |
| Apr 27, 5:47 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 58 min |
| Apr 27, 5:50 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey, Macoupin | 40 min |
| Apr 27, 5:59 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 46 min |
| Apr 27, 6:01 PM CDT | Tornado Warning | LSX | Jersey, Macoupin | 44 min |
| Apr 27, 6:09 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin | 21 min |
| Apr 27, 6:28 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Calhoun, Fayette, Jersey, Macoupin, Madison and 1 more | 47 min |
| Apr 27, 6:41 PM CDT | Tornado Warning | LSX | Calhoun, Jersey, Madison | 32 min |
| Apr 27, 6:47 PM CDT | Flash Flood Warning | LSX | Macoupin | 5 hr |
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.