Alert archive / Illinois / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 181, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Oct 24, 2021, 10:13 PM CDT for Clinton County, Fayette County, Marion County, Illinois. It was in force for 62 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, 10:13 PM CDT (03:13 UTC)
- Expired
- Oct 24, 2021, 11:15 PM CDT
- In force
- 62 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clinton County, IL, Fayette County, IL, Marion County, IL
The radar
The Evansville,IN radar (KVWX), 123 km from the middle of the area, began a volume at 03:12 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, 3.2 hours before the alert went out and 143 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.
021
WUUS53 KLSX 250313
SVRLSX
ILC027-051-121-250415-
/O.NEW.KLSX.SV.W.0181.211025T0313Z-211025T0415Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
1013 PM CDT Sun Oct 24 2021
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Northeastern Clinton County in south central Illinois...
Northern Marion County in south central Illinois...
Fayette County in south central Illinois...
* Until 1115 PM CDT.
* At 1013 PM CDT, severe thunderstorms were located along a line
extending from near Pocahontas to near Jamestown to Beckemeyer,
moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Mulberry Grove and Boulder around 1030 PM CDT.
Other locations in the path of these severe thunderstorms include
Fairman, Vandalia, Patoka, Shobonier, Brownstown, St. Elmo, Kinmundy,
Farina and Wrights Corner.
This includes the following highways...
Interstate 70 in Illinois between exits 61 and 76.
Interstate 57 in Illinois between exits 127 and 135.
This also includes Carlyle Lake Recreational Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 100 AM CDT for south central
Illinois.
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 100 AM CDT for south central
Illinois.
&&
LAT...LON 3877 8870 3861 8926 3899 8926 3921 8881
3891 8881 3891 8869
TIME...MOT...LOC 0313Z 248DEG 45KT 3885 8952 3874 8946 3860 8945
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CVKING2 follow-up statements
039
WWUS53 KLSX 250341
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1041 PM CDT Sun Oct 24 2021
ILC027-250351-
/O.CAN.KLSX.SV.W.0181.000000T0000Z-211025T0415Z/
Clinton IL-
1041 PM CDT Sun Oct 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CLINTON COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 100 AM CDT for south central
Illinois.
LAT...LON 3866 8908 3893 8913 3906 8882 3891 8881
3891 8869 3877 8870
TIME...MOT...LOC 0341Z 248DEG 45KT 3898 8911 3887 8905 3873 8904
$$
ILC051-121-250415-
/O.CON.KLSX.SV.W.0181.000000T0000Z-211025T0415Z/
Marion IL-Fayette IL-
1041 PM CDT Sun Oct 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR NORTHERN MARION AND SOUTHEASTERN FAYETTE COUNTIES...
At 1041 PM CDT, severe thunderstorms were located along a line
extending from Vandalia to near Shobonier to near Patoka, moving east
at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Brownstown, Kinmundy, St. Elmo and Farina.
This includes the following highways...
Interstate 70 in Illinois between exits 68 and 76.
Interstate 57 in Illinois between exits 127 and 135.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 100 AM CDT for south central
Illinois.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3866 8908 3893 8913 3906 8882 3891 8881
3891 8869 3877 8870
TIME...MOT...LOC 0341Z 248DEG 45KT 3898 8911 3887 8905 3873 8904
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CVKING408
WWUS53 KLSX 250406
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1106 PM CDT Sun Oct 24 2021
ILC051-121-250416-
/O.EXP.KLSX.SV.W.0181.000000T0000Z-211025T0415Z/
Marion IL-Fayette IL-
1106 PM CDT Sun Oct 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MARION AND
SOUTHEASTERN FAYETTE COUNTIES WILL EXPIRE AT 1115 PM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 100 AM CDT for south central
Illinois.
LAT...LON 3866 8908 3893 8913 3906 8882 3891 8881
3891 8869 3877 8870
TIME...MOT...LOC 0406Z 248DEG 45KT 3909 8875 3898 8869 3884 8868
$$
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, 9:48 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, 10:40 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Marion | 26 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2021Every severe thunderstorm warning 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.