Alert archive / Missouri / Tornado Warnings in 2021
Tornado Warning 57, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Dec 10, 2021, 9:39 PM CST for Saint Charles County, Saint Louis County, Missouri; Macoupin County, Madison County, Illinois. It was in force for 51 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
- Dec 10, 2021, 9:39 PM CST (03:39 UTC)
- Expired
- Dec 10, 2021, 10:30 PM CST
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Macoupin County, IL, Madison County, IL, Saint Charles County, MO, Saint Louis County, MO
The radar
The St Louis radar (KLSX), 49 km from the middle of the area, began a volume at 03:43 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 |
|---|---|---|---|
| Dec 10, 5:17 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.7 hours before the alert went out and 195 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
- 119 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 662 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 341 m²/s²
- 0-3 km storm-relative helicity
- 357 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
135
WFUS53 KLSX 110339
TORLSX
ILC117-119-MOC183-189-110430-
/O.NEW.KLSX.TO.W.0057.211211T0339Z-211211T0430Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
939 PM CST Fri Dec 10 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northern Madison County in southwestern Illinois...
Southern Macoupin County in southwestern Illinois...
Northeastern St. Charles County in east central Missouri...
Northeastern St. Louis County in east central Missouri...
* Until 1030 PM CST.
* At 939 PM CST, a severe thunderstorm capable of producing a tornado
was located over Bridgeton, moving northeast at 75 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...
Bellefontaine Neighbors, Black Jack, Riverview, Moline Acres and
Castle Point around 945 PM CST.
Granite City, Madison, Spanish Lake and Glasgow Village around 950
PM CST.
Alton, Godfrey, Wood River, Bethalto, Pontoon Beach, East Alton,
South Roxana, Roxana, Hartford and Rosewood Heights around 955 PM
CST.
Other locations in the path of this tornadic thunderstorm include
Edwardsville, Dorsey, Worden, Prairietown, Carpenter, Staunton,
Livingston, Alhambra, Wilsonville, Sawyerville and Mount Olive.
This also includes Confluence State Park and First Missouri State
Capitol Historic Site.
This includes the following highways...
Interstate 55 in Illinois between exits 23 and 44.
Interstate 70 in Missouri between exits 227 and 231.
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.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3885 8964 3872 9021 3875 9018 3877 9018
3875 9019 3870 9027 3865 9049 3878 9058
3893 9031 3892 9028 3895 9028 3900 9017
3900 9015 3902 9015 3921 8978
TIME...MOT...LOC 0339Z 244DEG 64KT 3875 9041
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Britt3 follow-up statements
509
WWUS53 KLSX 110358
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
958 PM CST Fri Dec 10 2021
MOC183-189-110407-
/O.CAN.KLSX.TO.W.0057.000000T0000Z-211211T0430Z/
St. Charles MO-St. Louis MO-
958 PM CST Fri Dec 10 2021
...THE TORNADO WARNING FOR NORTHEASTERN ST. CHARLES AND NORTHEASTERN
ST. LOUIS COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CST for south central
and southwestern Illinois...and east central Missouri.
LAT...LON 3885 8964 3874 9013 3878 9016 3880 9012
3884 9011 3892 9016 3908 8973
TIME...MOT...LOC 0357Z 245DEG 63KT 3888 9003
$$
ILC117-119-110430-
/O.CON.KLSX.TO.W.0057.000000T0000Z-211211T0430Z/
Madison IL-Macoupin IL-
958 PM CST Fri Dec 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CST FOR NORTHERN
MADISON AND SOUTHEASTERN MACOUPIN COUNTIES IN SOUTHWESTERN
ILLINOIS...
At 957 PM CST, a severe thunderstorm capable of producing a tornado
was located over Bethalto, moving northeast at 70 mph.
HAZARD...Tornado and quarter size hail.
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...
Worden, Staunton, Livingston, Alhambra and Mount Olive.
This includes Interstate 55 in Illinois between exits 23 and 41.
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.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3885 8964 3874 9013 3878 9016 3880 9012
3884 9011 3892 9016 3908 8973
TIME...MOT...LOC 0357Z 245DEG 63KT 3888 9003
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
19097
WWUS53 KLSX 110420
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1020 PM CST Fri Dec 10 2021
ILC117-110430-
/O.CAN.KLSX.TO.W.0057.000000T0000Z-211211T0430Z/
Macoupin IL-
1020 PM CST Fri Dec 10 2021
...THE TORNADO WARNING FOR SOUTHEASTERN MACOUPIN COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has !moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CST for southwestern
Illinois.
LAT...LON 3879 8991 3884 8991 3887 8988 3900 8974
3900 8970 3885 8964
TIME...MOT...LOC 0420Z 244DEG 64KT 3906 8956
$$
ILC119-110430-
/O.CON.KLSX.TO.W.0057.000000T0000Z-211211T0430Z/
Madison IL-
1020 PM CST Fri Dec 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CST FOR
NORTHEASTERN MADISON COUNTY IN SOUTHWESTERN ILLINOIS...
At 1020 PM CST, a severe thunderstorm capable of producing a tornado
was located near Sorento, moving northeast at 75 mph.
HAZARD...Tornado and quarter size hail.
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...
Livingston, Alhambra, Hamel, Williamson, Kaufman and Fruit.
This includes Interstate 55 in Illinois between exits 23 and 37.
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.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3879 8991 3884 8991 3887 8988 3900 8974
3900 8970 3885 8964
TIME...MOT...LOC 0420Z 244DEG 64KT 3906 8956
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BSH647
WWUS53 KLSX 110427
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1027 PM CST Fri Dec 10 2021
ILC119-110437-
/O.EXP.KLSX.TO.W.0057.000000T0000Z-211211T0430Z/
Madison IL-
1027 PM CST Fri Dec 10 2021
...THE TORNADO WARNING FOR NORTHEASTERN MADISON COUNTY IN
SOUTHWESTERN ILLINOIS WILL EXPIRE AT 1030 PM CST...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1100 PM CST for southwestern
Illinois.
Remember, a Severe Thunderstorm Warning still remains in effect for
southeast Madison county.
LAT...LON 3879 8991 3884 8991 3887 8988 3900 8974
3900 8970 3885 8964
TIME...MOT...LOC 0427Z 244DEG 64KT 3910 8946
$$
BSHThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 6:13 PM CST | Severe Thunderstorm Warning | LSX | Boone, Callaway, Cole, Moniteau | 47 min |
| Dec 10, 6:18 PM CST | Severe Thunderstorm Warning | LSX | Cole, Osage | 42 min |
| Dec 10, 6:27 PM CST | Tornado Warning | LSX | Audrain, Callaway | 34 min |
| Dec 10, 6:30 PM CST | Tornado Warning | LSX | Callaway, Cole, Gasconade, Montgomery, Osage | 45 min |
| Dec 10, 6:42 PM CST | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Osage | 48 min |
| Dec 10, 6:42 PM CST | Tornado Warning | LSX | Pike | 48 min |
| Dec 10, 6:49 PM CST | Tornado Warning | LSX | Franklin, Gasconade, Osage, Warren | 41 min |
| Dec 10, 6:50 PM CST | Tornado Warning | LSX | Audrain, Callaway, Montgomery, Pike, Ralls | 40 min |
| Dec 10, 7:00 PM CST | Tornado Warning | LSX | Gasconade, Lincoln, Montgomery, Pike, Warren | 45 min |
| Dec 10, 7:02 PM CST | Tornado Warning | LSX | Crawford, Franklin, Gasconade | 43 min |
| Dec 10, 7:11 PM CST | Tornado Warning | LSX | Lincoln, Montgomery, Pike | 49 min |
| Dec 10, 7:16 PM CST | Tornado Warning | LSX | Franklin, Lincoln, Saint Charles, Warren | 44 min |
| Dec 10, 7:30 PM CST | Tornado Warning | LSX | Lincoln | 45 min |
| Dec 10, 7:35 PM CST | Tornado Warning | LSX | Franklin, Jefferson, Lincoln, Saint Charles, Saint Louis, Warren | 40 min |
| Dec 10, 7:49 PM CST | Severe Thunderstorm Warning | LSX | Crawford, Washington | 26 min |
| Dec 10, 8:06 PM CST | Tornado Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 39 min |
| Dec 10, 8:10 PM CST | Severe Thunderstorm Warning | LSX | Franklin | 35 min |
| Dec 10, 8:29 PM CST | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Louis, City of Saint Louis | 30 min |
| Dec 10, 8:34 PM CST | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Osage | 41 min |
| Dec 10, 8:47 PM CST | Tornado Warning | LSX | Franklin, Gasconade, Warren | 43 min |
| Dec 10, 9:07 PM CST | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Lincoln, Saint Charles, Saint Louis, Warren and 1 more | 38 min |
| Dec 10, 10:00 PM CST | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 45 min |
| Dec 10, 10:05 PM CST | Severe Thunderstorm Warning | LSX | City of Saint Louis | 25 min |
| Dec 10, 10:14 PM CST | Tornado Warning | LSX | Iron, Madison, Reynolds | 46 min |
| Dec 10, 10:19 PM CST | Severe Thunderstorm Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois | 41 min |
| Dec 10, 10:26 PM CST | Severe Thunderstorm Warning | LSX | Reynolds | 20 min |
| Dec 10, 10:55 PM CST | Severe Thunderstorm Warning | LSX | Madison | 18 min |
| Dec 10, 7:16 PM CST | Tornado Warning | LSX | Pike | 14 min |
| Dec 10, 7:36 PM CST | Tornado Warning | LSX | Pike | 21 min |
| Dec 10, 8:33 PM CST | Tornado Warning | LSX | Bond, Madison | 42 min |
| Dec 10, 8:37 PM CST | Tornado Warning | LSX | Macoupin, Madison | 17 min |
| Dec 10, 8:44 PM CST | Tornado Warning | LSX | Fayette, Macoupin, Madison, Montgomery | 46 min |
| Dec 10, 8:56 PM CST | Tornado Warning | LSX | Bond, Fayette, Montgomery | 34 min |
| Dec 10, 10:18 PM CST | Severe Thunderstorm Warning | LSX | Bond, Fayette, Macoupin, Madison, Montgomery | 57 min |
| Dec 10, 10:26 PM CST | Tornado Warning | LSX | Bond, Fayette, Montgomery | 49 min |
| Dec 10, 10:51 PM CST | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair, Washington | 39 min |
| Dec 10, 11:02 PM CST | Tornado Warning | LSX | Fayette | 29 min |
| Dec 10, 11:10 PM CST | Tornado Warning | LSX | Clinton, Marion, Washington | 50 min |
Nearby
Tornado Warnings in Missouri, 2021Tornado 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.