Alert archive / Illinois / Tornado Warnings in 2021
Tornado Warning 36, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Oct 24, 2021, 9:48 PM CDT for Bond County, Clinton County, Madison County, Illinois. It was in force for 42 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Oct 24, 2021, 9:48 PM CDT (02:48 UTC)
- Expired
- Oct 24, 2021, 10:30 PM CDT
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Bond County, IL, Clinton County, IL, Madison County, IL
The radar
The St Louis radar (KLSX), 96 km from the middle of the area, began a volume at 02:47 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 24, 10:00 PM CDT | TSTM WND GST 65 | Aviston, IL | SPOTTER REPORTS ESTIMATED WIND GUST OF 65 MPH AND PEA SIZED HAIL. |
| Oct 24, 10:04 PM CDT | TSTM WND GST 65 | Aviston, IL | SPOTTER REPORTS WIND GUST ESTIMATE OF 65 MPH AND PEA SIZED HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 24, 5:44 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 2.8 hours before the alert went out and 184 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
- 3 J/kg
- Mixed-layer CIN
- -286 J/kg
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 371 m²/s²
- 0-3 km storm-relative helicity
- 467 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.1
The text
As transmitted.
679
WFUS53 KLSX 250248
TORLSX
ILC005-027-119-250330-
/O.NEW.KLSX.TO.W.0036.211025T0248Z-211025T0330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
948 PM CDT Sun Oct 24 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northern Clinton County in south central Illinois...
Bond County in south central Illinois...
Southeastern Madison County in southwestern Illinois...
* Until 1030 PM CDT.
* At 947 PM CDT, severe thunderstorms capable of producing both
tornadoes and extensive straight line wind damage were located
along a line extending from near Troy to near Scott AFB, moving
east at 50 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.
* These dangerous storms will be near...
New Baden and St. Jacob around 955 PM CDT.
Trenton, Albers and Marine around 1000 PM CDT.
Highland, Aviston and Germantown around 1005 PM CDT.
Other locations in the path of these tornadic storms include Breese,
St. Rose, Beckemeyer, Pocahontas, Jamestown, Carlyle, Beaver Creek,
Greenville, Tamalco and Mulberry Grove.
This includes Interstate 70 in Illinois between exits 21 and 52.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid 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.
This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 3861 8926 3853 8970 3865 8970 3866 8992
3873 8995 3899 8926
TIME...MOT...LOC 0247Z 249DEG 42KT 3869 8990 3854 8981
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
CVKING2 follow-up statements
050
WWUS53 KLSX 250303 RRA
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1003 PM CDT Sun Oct 24 2021
ILC005-027-119-250330-
/O.CON.KLSX.TO.W.0036.000000T0000Z-211025T0330Z/
Clinton IL-Bond IL-Madison IL-
1003 PM CDT Sun Oct 24 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR NORTHERN
CLINTON...BOND COUNTIES IN SOUTH CENTRAL ILLINOIS AND SOUTHEASTERN
MADISON COUNTIES IN SOUTHWESTERN ILLINOIS...
At 1003 PM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located along a
line extending from near Highland to near St. Rose to near Albers,
moving east at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Beckemeyer, Carlyle, Beaver Creek, Greenville, Tamalco and
Mulberry Grove.
This includes Interstate 70 in Illinois between exits 30 and 52.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 3854 8964 3864 8966 3872 8970 3880 8976
3899 8926 3861 8926
TIME...MOT...LOC 0303Z 254DEG 56KT 3881 8965 3870 8959 3856 8958
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
CVKING702
WWUS53 KLSX 250311
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1011 PM CDT Sun Oct 24 2021
ILC119-250320-
/O.CAN.KLSX.TO.W.0036.000000T0000Z-211025T0330Z/
Madison IL-
1011 PM CDT Sun Oct 24 2021
...THE TORNADO WARNING FOR SOUTHEASTERN MADISON COUNTY IN
SOUTHWESTERN ILLINOIS IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 100 AM CDT for south central
and southwestern Illinois.
LAT...LON 3856 8955 3863 8956 3872 8957 3886 8960
3899 8926 3861 8926
TIME...MOT...LOC 0310Z 248DEG 45KT 3884 8956 3873 8950 3859 8949
$$
ILC005-027-250330-
/O.CON.KLSX.TO.W.0036.000000T0000Z-211025T0330Z/
Clinton IL-Bond IL-
1011 PM CDT Sun Oct 24 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
NORTHEASTERN CLINTON AND SOUTHERN BOND COUNTIES...
At 1010 PM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located along a
line extending from Pocahontas to Jamestown to near Breese, moving
east at 50 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Greenville, Breese, Carlyle, St. Rose, Beckemeyer, Pocahontas,
Mulberry Grove, Tamalco, Beaver Creek, Jamestown, Pleasant Mound,
Pierron, Keyesport, Smithboro, Huey, Dudleyville and Stolletown.
This includes Interstate 70 in Illinois between exits 36 and 52.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 3856 8955 3863 8956 3872 8957 3886 8960
3899 8926 3861 8926
TIME...MOT...LOC 0310Z 248DEG 45KT 3884 8956 3873 8950 3859 8949
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 7:39 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 51 min |
| Oct 24, 7:59 PM CDT | River Flood Warning | LSX | Brown | 33 hr |
| Oct 24, 8:03 PM CDT | Tornado Warning | LSX | Monroe, Randolph | 42 min |
| Oct 24, 8:27 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 48 min |
| Oct 24, 8:34 PM CDT | Tornado Warning | LSX | Randolph | 41 min |
| Oct 24, 9:00 PM CDT | Tornado Warning | LSX | Clinton, Randolph, Saint Clair, Washington | 45 min |
| Oct 24, 9:08 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 54 min |
| Oct 24, 9:08 PM CDT | Tornado Warning | LSX | Randolph | 40 min |
| Oct 24, 9:15 PM CDT | Tornado Warning | LSX | Randolph | 19 min |
| Oct 24, 9:33 PM CDT | Tornado Warning | LSX | Saint Clair | 30 min |
| Oct 24, 9:58 PM CDT | Tornado Warning | LSX | Marion, Washington | 16 min |
| Oct 24, 10:13 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Fayette, Marion | 62 min |
| Oct 24, 10:40 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Marion | 26 min |
Nearby
Tornado Warnings in Illinois, 2021Every tornado warning in 2021Tornadoes in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.