Alert archive / Missouri / Tornado Warnings in 2021
Tornado Warning 45, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Dec 10, 2021, 7:11 PM CST for Pike County, Illinois; Lincoln County, Montgomery County, Pike County, Missouri. It was in force for 49 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, 7:11 PM CST (01:11 UTC)
- Expired
- Dec 10, 2021, 8:00 PM CST
- In force
- 49 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Pike County, IL, Lincoln County, MO, Montgomery County, MO, Pike County, MO
The radar
The St Louis radar (KLSX), 81 km from the middle of the area, began a volume at 01:14 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, 1.2 hours before the alert went out and 234 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.
527
WFUS53 KLSX 110111
TORLSX
ILC149-MOC113-139-163-110200-
/O.NEW.KLSX.TO.W.0045.211211T0111Z-211211T0200Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
711 PM CST Fri Dec 10 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
South central Pike County in west central Illinois...
Northwestern Lincoln County in east central Missouri...
Northeastern Montgomery County in east central Missouri...
Pike County in northeastern Missouri...
* Until 800 PM CST.
* At 711 PM CST, severe thunderstorms capable of producing a tornado
were located along a line extending from near Curryville to near
New Hartford to near Buell, 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.
* These dangerous storms will be near...
Curryville and New Hartford around 715 PM CST.
Bowling Green around 720 PM CST.
Tarrants around 725 PM CST.
Louisiana and Eolia around 730 PM CST.
Other locations in the path of these tornadic storms include
Clarksville, Pike and Atlas.
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 3967 9099 3940 9087 3939 9094 3934 9085
3907 9122 3904 9140 3915 9140 3935 9144
TIME...MOT...LOC 0111Z 242DEG 55KT 3929 9140 3918 9131 3909 9138
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Britt2 follow-up statements
970
WWUS53 KLSX 110134
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
734 PM CST Fri Dec 10 2021
MOC113-139-163-110144-
/O.CAN.KLSX.TO.W.0045.000000T0000Z-211211T0200Z/
Lincoln MO-Montgomery MO-Pike MO-
734 PM CST Fri Dec 10 2021
...THE TORNADO WARNING FOR NORTHWESTERN LINCOLN...NORTHEASTERN
MONTGOMERY COUNTIES IN EAST CENTRAL MISSOURI AND PIKE COUNTIES IN
NORTHEASTERN MISSOURI IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CST for west central
Illinois.
LAT...LON 3967 9099 3940 9087 3943 9098 3952 9107
TIME...MOT...LOC 0134Z 240DEG 37KT 3952 9093
$$
ILC149-110200-
/O.CON.KLSX.TO.W.0045.000000T0000Z-211211T0200Z/
Pike IL-
734 PM CST Fri Dec 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR SOUTH
CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS...
At 734 PM CST, a severe thunderstorm capable of producing a tornado
was located over Atlas, moving northeast at 45 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 tornadic thunderstorm will remain over mainly rural areas of
south central Pike County in west central Illinois, including the
following locations... El Dara and Rockport.
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 3967 9099 3940 9087 3943 9098 3952 9107
TIME...MOT...LOC 0134Z 240DEG 37KT 3952 9093
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Britt098
WWUS53 KLSX 110154
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
754 PM CST Fri Dec 10 2021
ILC149-110204-
/O.EXP.KLSX.TO.W.0045.000000T0000Z-211211T0200Z/
Pike IL-
754 PM CST Fri Dec 10 2021
...THE TORNADO WARNING FOR SOUTH CENTRAL PIKE COUNTY IN WEST CENTRAL
ILLINOIS WILL EXPIRE AT 800 PM CST...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1100 PM CST for west central
Illinois.
LAT...LON 3967 9099 3940 9087 3943 9098 3952 9107
TIME...MOT...LOC 0154Z 242DEG 55KT 3965 9061
$$
BrittThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 6:42 PM CST | Tornado Warning | LSX | Pike | 48 min |
| Dec 10, 7:16 PM CST | Tornado Warning | LSX | Pike | 14 min |
| Dec 10, 7:30 PM CST | Tornado Warning | LSX | Calhoun, Greene, Jersey | 45 min |
| Dec 10, 7:35 PM CST | Tornado Warning | LSX | Calhoun, Jersey | 40 min |
| Dec 10, 7:36 PM CST | Tornado Warning | LSX | Pike | 21 min |
| Dec 10, 8:06 PM CST | Tornado Warning | LSX | Jersey, Macoupin, Madison | 39 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, 9:07 PM CST | Severe Thunderstorm Warning | LSX | Calhoun | 38 min |
| Dec 10, 9:39 PM CST | Tornado Warning | LSX | Macoupin, Madison | 51 min |
| Dec 10, 10:05 PM CST | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 25 min |
| Dec 10, 10:18 PM CST | Severe Thunderstorm Warning | LSX | Bond, Fayette, Macoupin, Madison, Montgomery | 57 min |
| Dec 10, 10:19 PM CST | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 41 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 |
| 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, 6:49 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, 7:16 PM CST | Tornado Warning | LSX | Franklin, Lincoln, Saint Charles, Warren | 44 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, 10:00 PM CST | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 45 min |
| Dec 10, 10:14 PM CST | Tornado Warning | LSX | Iron, Madison, Reynolds | 46 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 |
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.