Alert archive / Illinois / Tornado Warnings in 2021
Tornado Warning 34, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Oct 24, 2021, 9:15 PM CDT for Randolph County, Illinois. It was in force for 19 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, 9:15 PM CDT (02:15 UTC)
- Expired
- Oct 24, 2021, 9:34 PM CDT
- In force
- 19 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Emergency
- Tornado emergency
- Tornado
- Observed
- Damage threat
- Catastrophic
- Hail
- 0.75 in
County Randolph County, IL
The radar
The St Louis radar (KLSX), 115 km from the middle of the area, began a volume at 02:18 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, 9:16 PM CDT | TORNADO | Chester, IL | LARGE TREES UPWARDS OF 18 INCHES IN DIAMETER HAVE BEEN UPROOTED. SMALL BOATS HAVE BEEN BLOWN. TIME ESTIMATED FROM RADAR. |
| Oct 24, 9:25 PM CDT | TORNADO | 1 E Bremen, IL | POWER LINES DOWN ALONG ROUTE 150. |
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, 2.3 hours before the alert went out and 271 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.
416
WFUS53 KLSX 250215
TORLSX
ILC157-250300-
/O.NEW.KLSX.TO.W.0034.211025T0215Z-211025T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
915 PM CDT Sun Oct 24 2021
...TORNADO EMERGENCY FOR CHESTER!...
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Southeastern Randolph County in southwestern Illinois...
* Until 1000 PM CDT.
* At 914 PM CDT, a confirmed large and destructive tornado was
observed over Chester, moving northeast at 40 mph.
TORNADO EMERGENCY for Chester!. This is a PARTICULARLY DANGEROUS
SITUATION. TAKE COVER NOW!
HAZARD...Deadly tornado.
SOURCE...Radar confirmed tornado.
IMPACT...You are in a life-threatening situation. Flying debris
may be deadly to those caught without shelter. Mobile
homes will be destroyed. Considerable damage to homes,
businesses, and vehicles is likely and complete
destruction is possible.
* The tornado will be near...
Bremen around 925 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, TAKE COVER NOW! Move
to an interior room on the lowest floor of a sturdy building. Avoid
windows. If in a mobile home, a vehicle or outdoors, move to the
closest substantial shelter and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3790 8971 3787 8980 3788 8980 3789 8982
3791 8984 3788 8989 3789 8990 3789 8993
3791 8994 3798 8991 3806 8975
TIME...MOT...LOC 0214Z 239DEG 34KT 3792 8985
TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CATASTROPHIC
MAX HAIL SIZE...<.75 IN
$$
Glass2 follow-up statements
182
WWUS53 KLSX 250223 RRA
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
923 PM CDT Sun Oct 24 2021
ILC157-250300-
/O.CON.KLSX.TO.W.0034.000000T0000Z-211025T0300Z/
Randolph IL-
923 PM CDT Sun Oct 24 2021
...TORNADO EMERGENCY FOR BREMEN!...
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
SOUTHEASTERN RANDOLPH COUNTY...
At 922 PM CDT, a confirmed large and destructive tornado was located
over Bremen, moving northeast at 40 mph.
TORNADO EMERGENCY for Bremen! This is a PARTICULARLY DANGEROUS
SITUATION. TAKE COVER NOW!
HAZARD...Deadly tornado.
SOURCE...Weather spotters confirmed tornado. Massive damage was
reported in St. Mary.
IMPACT...You are in a life-threatening situation. Flying debris may
be deadly to those caught without shelter. Mobile homes
will be destroyed. Considerable damage to homes,
businesses, and vehicles is likely and complete destruction
is possible.
This tornadic thunderstorm will remain over mainly rural areas of
southeastern Randolph County, including the following locations...
New Palestine.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a large, extremely dangerous, and potentially deadly
tornado is on the ground. To protect your life, TAKE COVER NOW! Move
to an interior room on the lowest floor of a sturdy building. Avoid
windows. If in a mobile home, a vehicle or outdoors, move to the
closest substantial shelter and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3790 8971 3787 8980 3788 8980 3789 8982
3791 8984 3792 8984 3792 8985 3799 8985
3806 8975
TIME...MOT...LOC 0222Z 239DEG 34KT 3796 8976
TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CATASTROPHIC
MAX HAIL SIZE...<.75 IN
$$
Glass468
WWUS53 KLSX 250234
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
934 PM CDT Sun Oct 24 2021
ILC157-250243-
/O.CAN.KLSX.TO.W.0034.000000T0000Z-211025T0300Z/
Randolph IL-
934 PM CDT Sun Oct 24 2021
...THE TORNADO WARNING FOR SOUTHEASTERN RANDOLPH COUNTY IS
CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 100 AM CDT for southwestern
Illinois.
Remember, a Tornado Warning still remains in effect for southeast
Randolph County until 1000 pm.
LAT...LON 3790 8971 3787 8980 3788 8980 3789 8982
3791 8984 3792 8984 3792 8985 3799 8985
3806 8975
TIME...MOT...LOC 0232Z 239DEG 34KT 3801 8964
$$
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, 9:33 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, 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.