Alert archive / Missouri / Tornado Warnings in 2021
Tornado Warning 51, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Dec 10, 2021, 8:06 PM CST for Saint Charles County, Saint Louis County, City of Saint Louis, Missouri; Jersey County, Macoupin County, Madison County, Illinois. It was in force for 39 min. 5 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
- Dec 10, 2021, 8:06 PM CST (02:06 UTC)
- Expired
- Dec 10, 2021, 8:45 PM CST
- In force
- 39 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 1.0 in
Counties Jersey County, IL, Macoupin County, IL, Madison County, IL, City of Saint Louis, MO, Saint Charles County, MO, Saint Louis County, MO
The radar
The St Louis radar (KLSX), 42 km from the middle of the area, began a volume at 02:09 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 |
|---|---|---|---|
| Dec 10, 8:09 PM CST | TSTM WND DMG | Jerseyville, IL | JERSEY COUNTY DISPATCH REPORTED A METAL SIGN AND TREE LIMB DOWN ACROSS THE ROAD AT STATE HWY 16 IN JERSEYVILLE. TIME ESTIMATED USING RADAR. |
| Dec 10, 8:27 PM CST | TORNADO | 2 S Poag, IL | EMERGENCY MANAGEMENT REPORTED A PARTIAL ROOF COLLAPSE AT AN AMAZON WAREHOUSE SOUTHWEST OF EDWARDSVILLE. MULTIPLE PEOPLE ARE TRAPPED AT THIS TIME. |
| Dec 10, 8:29 PM CST | TSTM WND DMG | 2 Ese Mitchell, IL | TRACTOR-TRAILER OVERTURNED ON I-270 WB NEAR MILEPOST 7 WITH CABLES ACROSS THE ROADWAY. |
| Dec 10, 8:33 PM CST | TSTM WND DMG | 1 S Bunker Hill, IL | MACOUPIN COUNTY DISPATCH REPORTED TREE DOWN ON HWY 159. TIME ESTIMATED FROM RADAR. |
| Dec 10, 8:40 PM CST | TSTM WND DMG | 4 W Staunton, IL | MACOUPIN COUNTY DISPATCH REPORTED POWER LINES DOWN ON SCHOOL HOUSE ROAD EAST OF DORCHESTER ROAD WEST OF STAUNTON. TIME ESTIMATED FROM RADAR. |
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 |
|---|---|---|---|
| Dec 10, 5:17 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 2.1 hours before the alert went out and 202 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.
514
WFUS53 KLSX 110206
TORLSX
ILC083-117-119-MOC183-189-510-110245-
/O.NEW.KLSX.TO.W.0051.211211T0206Z-211211T0245Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
806 PM CST Fri Dec 10 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Madison County in southwestern Illinois...
Southern Macoupin County in southwestern Illinois...
Southeastern Jersey County in southwestern Illinois...
St. Louis City in east central Missouri...
Northeastern St. Charles County in east central Missouri...
Northeastern St. Louis County in east central Missouri...
* Until 845 PM CST.
* At 805 PM CST, a tornado producing storm was located over
Bridgeton, moving northeast at 60 mph.
HAZARD...Damaging tornado and quarter size hail.
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.
* This tornadic storm will be near...
Florissant, Ferguson, Jennings, Dellwood, Northwoods, Pine Lawn,
Calverton Park, Country Club Hills, Norwood Court and Pasadena
Hills around 810 PM CST.
St. Louis, Bellefontaine Neighbors, Black Jack, Riverview, Spanish
Lake, Moline Acres, West Alton, Castle Point and Glasgow Village
around 815 PM CST.
Alton, Madison and East Alton around 820 PM CST.
Godfrey, Wood River, Bethalto, South Roxana, Roxana, Hartford and
Rosewood Heights around 825 PM CST.
Other locations in the path of this tornadic thunderstorm include
Edwardsville, Dorsey, Bunker Hill, Prairietown, Carpenter, Worden,
Wilsonville, Staunton, Benld, Livingston, Sawyerville, Mount Clare
and Eagarville.
This also includes Scott Joplin Historic Site, Confluence State Park,
First Missouri State Capitol Historic Site, Beaver Dam State Park,
and Horseshoe Lake State Park.
This includes the following highways...
Interstate 70 in Illinois between exits 21 and 24.
Interstate 55 in Illinois between exits 23 and 37.
Interstate 70 in Missouri between exits 228 and 231.
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 3866 9005 3866 9018 3863 9018 3853 9056
3892 9050 3897 9045 3897 9049 3908 9047
3930 8985 3875 8968
TIME...MOT...LOC 0205Z 242DEG 52KT 3877 9041
TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN
$$
191 follow-up statement
806
WWUS53 KLSX 110216
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
816 PM CST Fri Dec 10 2021
ILC083-117-119-MOC183-189-510-110245-
/O.CON.KLSX.TO.W.0051.000000T0000Z-211211T0245Z/
Madison IL-Macoupin IL-Jersey IL-St. Louis City MO-St. Charles MO-
St. Louis MO-
816 PM CST Fri Dec 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CST FOR
MADISON...SOUTHERN MACOUPIN AND SOUTHEASTERN JERSEY COUNTIES IN
SOUTHWESTERN ILLINOIS...NORTHEASTERN ST. CHARLES AND NORTHEASTERN ST.
LOUIS COUNTIES IN EAST CENTRAL MISSOURI AND ST. LOUIS CITY...
At 816 PM CST, a severe thunderstorm capable of producing a tornado
was located over West Alton, moving northeast at 60 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.
This dangerous storm will be near...
Alton, Godfrey, East Alton and Hartford around 820 PM CST.
Wood River, Bethalto, South Roxana, Roxana and Rosewood Heights
around 825 PM CST.
Other locations in the path of this tornadic thunderstorm include
Dorsey, Bunker Hill, Prairietown, Carpenter, Staunton, Worden,
Wilsonville, Gillespie, Benld, Livingston, Sawyerville, Mount Clare,
East Gillespie and Eagarville.
This also includes Scott Joplin Historic Site, Confluence State Park,
Beaver Dam State Park, and Horseshoe Lake State Park.
This includes the following highways...
Interstate 70 in Illinois between exits 21 and 24.
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.
&&
LAT...LON 3866 9005 3866 9018 3863 9018 3857 9040
3891 9035 3899 9033 3909 9029 3917 9023
3930 8985 3875 8968
TIME...MOT...LOC 0216Z 242DEG 52KT 3885 9023
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
19The 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, 8:10 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, 9:39 PM CST | Tornado Warning | LSX | Saint Charles, Saint Louis | 51 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.