Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 174, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Oct 24, 2021, 7:07 PM CDT for 6 counties in Missouri. It was in force for 38 min. 1 report 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
- Oct 24, 2021, 7:07 PM CDT (00:07 UTC)
- Expired
- Oct 24, 2021, 7:45 PM CDT
- In force
- 38 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Callaway County, MO, Franklin County, MO, Gasconade County, MO, Montgomery County, MO, Osage County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 62 km from the middle of the area, began a volume at 00:09 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 |
|---|---|---|---|
| Oct 24, 7:14 PM CDT | TSTM WND DMG | 2 Ene Portland, MO | TREE OVER THE ROAD AT 10591 STATE HIGHWAY 94. |
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 |
|---|---|---|---|
| Oct 24, 2:06 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.1 hours before the alert went out and 290 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.
470
WUUS53 KLSX 250007
SVRLSX
MOC027-071-073-139-151-219-250045-
/O.NEW.KLSX.SV.W.0174.211025T0007Z-211025T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
707 PM CDT Sun Oct 24 2021
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Southern Montgomery County in east central Missouri...
Southeastern Callaway County in central Missouri...
Northwestern Franklin County in east central Missouri...
Northeastern Osage County in central Missouri...
Warren County in east central Missouri...
Northern Gasconade County in east central Missouri...
* Until 745 PM CDT.
* At 706 PM CDT, severe thunderstorms were located along a line
extending from 11 miles southeast of Fulton to near Chamois, moving
east at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Big Spring and Swiss around 725 PM CDT.
Other locations in the path of these severe thunderstorms include
Hermann, New Haven, Warrenton, Truesdale and Treloar.
This includes Interstate 70 in Missouri between exits 188 and 193.
This also includes Deutschheim Historic Site.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for central and
east central Missouri.
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 1000 PM CDT for central and
east central Missouri.
&&
LAT...LON 3876 9184 3887 9111 3887 9107 3856 9096
3855 9097 3852 9201
TIME...MOT...LOC 0006Z 256DEG 45KT 3875 9177 3861 9178
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CVKING2 follow-up statements
080
WWUS53 KLSX 250017
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
717 PM CDT Sun Oct 24 2021
MOC027-071-073-139-151-219-250045-
/O.CON.KLSX.SV.W.0174.000000T0000Z-211025T0045Z/
Montgomery MO-Callaway MO-Franklin MO-Osage MO-Warren MO-
Gasconade MO-
717 PM CDT Sun Oct 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR SOUTHERN MONTGOMERY...EAST CENTRAL CALLAWAY...NORTHWESTERN
FRANKLIN...NORTHEASTERN OSAGE...WARREN AND NORTHERN GASCONADE
COUNTIES...
At 717 PM CDT, severe thunderstorms were located along a line
extending from near Big Spring to near Linn, moving east at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Big Spring around 725 PM CDT.
Other locations in the path of these severe thunderstorms include
Hermann, Swiss, Warrenton, Wright City, Truesdale and Innsbrook.
This also includes Deutschheim Historic Site.
This includes Interstate 70 in Missouri between exits 188 and 193.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for central and
east central Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3879 9164 3887 9111 3887 9107 3856 9096
3855 9097 3852 9201 3865 9185
TIME...MOT...LOC 0017Z 262DEG 29KT 3879 9156 3854 9187
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CVKING050
WWUS53 KLSX 250039
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
739 PM CDT Sun Oct 24 2021
MOC027-071-073-139-151-219-250049-
/O.EXP.KLSX.SV.W.0174.000000T0000Z-211025T0045Z/
Montgomery MO-Callaway MO-Franklin MO-Osage MO-Warren MO-
Gasconade MO-
739 PM CDT Sun Oct 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MONTGOMERY...EAST
CENTRAL CALLAWAY...NORTHWESTERN FRANKLIN...NORTHEASTERN OSAGE...
WARREN AND NORTHERN GASCONADE COUNTIES WILL EXPIRE AT 745 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1000 PM CDT for central and
east central Missouri.
LAT...LON 3879 9164 3887 9111 3887 9107 3856 9096
3855 9097 3852 9201 3865 9185
TIME...MOT...LOC 0039Z 256DEG 45KT 3886 9122 3861 9153
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 7:00 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 34 min |
| Oct 24, 7:03 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Warren | 42 min |
| Oct 24, 7:06 PM CDT | Tornado Warning | LSX | Reynolds | 39 min |
| Oct 24, 7:09 PM CDT | Tornado Warning | LSX | Crawford, Iron, Washington | 31 min |
| Oct 24, 7:37 PM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 38 min |
| Oct 24, 7:39 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois, Washington | 51 min |
| Oct 24, 7:48 PM CDT | Tornado Warning | LSX | Iron, Madison, Reynolds, Saint Francois | 27 min |
| Oct 24, 8:03 PM CDT | Tornado Warning | LSX | Sainte Genevieve, Saint Francois | 42 min |
| Oct 24, 8:09 PM CDT | Tornado Warning | LSX | Sainte Genevieve, Saint Francois | 40 min |
| Oct 24, 8:10 PM CDT | Tornado Warning | LSX | Iron, Madison, Reynolds | 50 min |
| Oct 24, 8:23 PM CDT | Tornado Warning | LSX | Iron, Madison, Reynolds | 52 min |
| Oct 24, 8:34 PM CDT | Tornado Warning | LSX | Sainte Genevieve | 41 min |
| Oct 24, 8:48 PM CDT | Tornado Warning | LSX | Madison, Saint Francois | 27 min |
| Oct 24, 9:08 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 54 min |
| Oct 24, 9:11 PM CDT | Tornado Warning | LSX | Iron, Madison | 49 min |
| Oct 24, 9:12 PM CDT | Flash Flood Warning | LSX | Iron, Madison | 4 hr |
| Oct 24, 9:37 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 36 min |
| Oct 24, 10:07 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 38 min |
| Oct 24, 10:12 PM CDT | Flash Flood Warning | LSX | Madison | 4 hr |
Nearby
Severe Thunderstorm Warnings in Missouri, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.