Alert archive / Illinois / Tornado Warnings in 2021
Tornado Warning 37, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Oct 24, 2021, 9:58 PM CDT for Marion County, Washington County, Illinois. It was in force for 16 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
- Oct 24, 2021, 9:58 PM CDT (02:58 UTC)
- Expired
- Oct 24, 2021, 10:14 PM CDT
- In force
- 16 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Marion County, IL, Washington County, IL
The radar
The Evansville,IN radar (KVWX), 116 km from the middle of the area, began a volume at 03:01 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 |
|---|---|---|---|
| Oct 24, 5:44 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.0 hours before the alert went out and 188 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.
399
WFUS53 KLSX 250258
TORLSX
ILC121-189-250345-
/O.NEW.KLSX.TO.W.0037.211025T0258Z-211025T0345Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
958 PM CDT Sun Oct 24 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Southern Marion County in south central Illinois...
Northeastern Washington County in south central Illinois...
* Until 1045 PM CDT.
* At 958 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Wamac, moving northeast 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.
* This dangerous storm will be near...
Salem around 1010 PM CDT.
Helm around 1015 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Omega and Stephen Forbes Station.
This includes the following highways...
Interstate 57 in Illinois between exits 109 and 116.
Interstate 64 in Illinois near exit 61.
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.
&&
LAT...LON 3847 8881 3847 8914 3834 8914 3833 8916
3849 8925 3851 8921 3850 8915 3855 8914
3877 8870 3852 8870
TIME...MOT...LOC 0258Z 239DEG 59KT 3847 8909
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Glass2 follow-up statements
004
WWUS53 KLSX 250305
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1005 PM CDT Sun Oct 24 2021
ILC189-250315-
/O.CAN.KLSX.TO.W.0037.000000T0000Z-211025T0345Z/
Washington IL-
1005 PM CDT Sun Oct 24 2021
...THE TORNADO WARNING FOR NORTHEASTERN WASHINGTON COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 100 AM CDT for south central
Illinois.
LAT...LON 3847 8880 3848 8893 3847 8900 3847 8914
3849 8915 3855 8914 3877 8870 3852 8870
TIME...MOT...LOC 0305Z 237DEG 42KT 3849 8906
$$
ILC121-250345-
/O.CON.KLSX.TO.W.0037.000000T0000Z-211025T0345Z/
Marion IL-
1005 PM CDT Sun Oct 24 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR SOUTHERN
MARION COUNTY...
At 1005 PM CDT, a confirmed tornado was located near Centralia,
moving northeast at 50 mph.
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
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, Omega and Stephen Forbes Station.
This includes Interstate 57 in Illinois between exits 109 and 116.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. 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.
&&
LAT...LON 3847 8880 3848 8893 3847 8900 3847 8914
3849 8915 3855 8914 3877 8870 3852 8870
TIME...MOT...LOC 0305Z 237DEG 42KT 3849 8906
TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN
$$
Glass014
WWUS53 KLSX 250314
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1014 PM CDT Sun Oct 24 2021
ILC121-250324-
/O.CAN.KLSX.TO.W.0037.000000T0000Z-211025T0345Z/
Marion IL-
1014 PM CDT Sun Oct 24 2021
...THE TORNADO WARNING FOR SOUTHERN MARION COUNTY IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 100 AM CDT for south central
Illinois.
LAT...LON 3847 8880 3848 8893 3847 8900 3847 8914
3849 8915 3855 8914 3877 8870 3852 8870
TIME...MOT...LOC 0313Z 239DEG 59KT 3857 8890
$$
GlassThe 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, 9:48 PM CDT | Tornado Warning | LSX | Bond, Clinton, Madison | 42 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.