Alert archive / Missouri / Tornado Warnings in 2021
Tornado Warning 41, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Dec 10, 2021, 6:49 PM CST for 4 counties in Missouri. It was in force for 41 min. 3 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, 6:49 PM CST (00:49 UTC)
- Expired
- Dec 10, 2021, 7:30 PM CST
- In force
- 41 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Franklin County, MO, Gasconade County, MO, Osage County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 81 km from the middle of the area, began a volume at 00:52 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, 6:58 PM CST | TSTM WND DMG | 6 W Bland, MO | STRONG WINDS HAVE BROUGHT DOWN TREE BRANCHES. |
| Dec 10, 7:22 PM CST | TSTM WND DMG | 1 N Gerald, MO | FRANKLIN COUNTY DISPATCH REPORTED A TREE ACROSS HIGHWAY Y NORTH OF GERALD AT WHEELER ROAD. TIME ESTIMATED FROM RADAR. |
| Dec 10, 7:29 PM CST | HAIL 0.25 | 3 W Union, MO | REPORT OF PEA SIZED HAIL JUST WEST OF UNION. |
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
Springfield, MO (KSGF), launched 00:00Z, 0.8 hours before the alert went out and 261 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
- 637 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1113 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 344 m²/s²
- 0-3 km storm-relative helicity
- 300 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 8.4
The text
As transmitted.
033
WFUS53 KLSX 110049
TORLSX
MOC071-073-151-219-110130-
/O.NEW.KLSX.TO.W.0041.211211T0049Z-211211T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
649 PM CST Fri Dec 10 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northwestern Franklin County in east central Missouri...
Southeastern Osage County in central Missouri...
South central Warren County in east central Missouri...
Central Gasconade County in east central Missouri...
* Until 730 PM CST.
* At 649 PM CST, a severe thunderstorm capable of producing a tornado
was located over Bland, 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.
* This dangerous storm will be near...
Owensville around 655 PM CST.
Rosebud and Drake around 700 PM CST.
Gerald around 705 PM CST.
Other locations in the path of this tornadic thunderstorm include
Beaufort, New Haven, Washington and Union.
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 3843 9181 3875 9117 3848 9097 3824 9164
3829 9165 3829 9173
TIME...MOT...LOC 0049Z 241DEG 57KT 3833 9162
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
192 follow-up statements
187
WWUS53 KLSX 110058
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
658 PM CST Fri Dec 10 2021
MOC151-110108-
/O.CAN.KLSX.TO.W.0041.000000T0000Z-211211T0130Z/
Osage MO-
658 PM CST Fri Dec 10 2021
...THE TORNADO WARNING FOR SOUTHEASTERN OSAGE COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CST for central and
east central Missouri.
LAT...LON 3852 9164 3875 9117 3848 9097 3824 9164
3828 9165
TIME...MOT...LOC 0058Z 241DEG 57KT 3840 9146
$$
MOC071-073-219-110130-
/O.CON.KLSX.TO.W.0041.000000T0000Z-211211T0130Z/
Franklin MO-Warren MO-Gasconade MO-
658 PM CST Fri Dec 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CST FOR
NORTHWESTERN FRANKLIN...SOUTH CENTRAL WARREN AND CENTRAL GASCONADE
COUNTIES...
At 658 PM CST, a severe thunderstorm capable of producing a tornado
was located near Rosebud, 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.
Locations impacted include...
Beaufort, New Haven, Washington and Union.
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 3852 9164 3875 9117 3848 9097 3824 9164
3828 9165
TIME...MOT...LOC 0058Z 241DEG 57KT 3840 9146
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
19854
WWUS53 KLSX 110110
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
710 PM CST Fri Dec 10 2021
MOC071-073-219-110130-
/O.CON.KLSX.TO.W.0041.000000T0000Z-211211T0130Z/
Franklin MO-Warren MO-Gasconade MO-
710 PM CST Fri Dec 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CST FOR
NORTHWESTERN FRANKLIN...SOUTH CENTRAL WARREN AND SOUTHEASTERN
GASCONADE COUNTIES...
At 710 PM CST, a severe thunderstorm capable of producing a tornado
was located near Beaufort, moving northeast at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Washington, Union, Owensville, New Haven, Gerald, Rosebud, Beaufort,
Treloar, Berger, Leslie, Lyon and Holstein.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3875 9117 3848 9097 3827 9157 3867 9134
TIME...MOT...LOC 0110Z 240DEG 55KT 3850 9126
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
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, 6:50 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, 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 |
Nearby
Tornado Warnings in Missouri, 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.