Alert archive / Missouri / Tornado Warnings in 2021
Tornado Warning 25, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Oct 24, 2021, 8:03 PM CDT for Sainte Genevieve County, Saint Francois County, Missouri; Monroe County, Randolph County, Illinois. It was in force for 42 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
- Oct 24, 2021, 8:03 PM CDT (01:03 UTC)
- Expired
- Oct 24, 2021, 8:45 PM CDT
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Monroe County, IL, Randolph County, IL, Saint Francois County, MO, Sainte Genevieve County, MO
The radar
The St Louis radar (KLSX), 79 km from the middle of the area, began a volume at 01:02 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 |
|---|---|---|---|
| Oct 24, 5:44 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 1.1 hours before the alert went out and 276 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.
145
WFUS53 KLSX 250103
TORLSX
ILC133-157-MOC186-187-250145-
/O.NEW.KLSX.TO.W.0025.211025T0103Z-211025T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
803 PM CDT Sun Oct 24 2021
The National Weather Service in St Louis has issued a
* Tornado Warning for...
South central Monroe County in southwestern Illinois...
West central Randolph County in southwestern Illinois...
Northwestern Ste. Genevieve County in southeastern Missouri...
North central St. Francois County in southeastern Missouri...
* Until 845 PM CDT.
* At 803 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Bonne Terre, moving northeast at 30 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...
Bloomsdale.
This also includes St. Francois State Park.
This includes Interstate 55 in Missouri between exits 154 and 162.
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 3788 9046 3798 9053 3810 9033 3809 9030
3809 9029 3811 9028 3812 9025 3813 9026
3819 9016 3801 9005
TIME...MOT...LOC 0103Z 239DEG 28KT 3795 9044
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Glass1 follow-up statement
033
WWUS53 KLSX 250115
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
815 PM CDT Sun Oct 24 2021
MOC187-250124-
/O.CAN.KLSX.TO.W.0025.000000T0000Z-211025T0145Z/
St. Francois MO-
815 PM CDT Sun Oct 24 2021
...THE TORNADO WARNING FOR NORTH CENTRAL ST. FRANCOIS COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for east central
Missouri. A Tornado Watch also remains in effect until 100 AM CDT for
southwestern Illinois...and southeastern Missouri.
LAT...LON 3796 9036 3798 9032 3804 9041 3809 9033
3809 9029 3811 9028 3812 9025 3813 9025
3819 9016 3801 9005 3792 9033
TIME...MOT...LOC 0114Z 238DEG 33KT 3803 9028
$$
ILC133-157-MOC186-250145-
/O.CON.KLSX.TO.W.0025.000000T0000Z-211025T0145Z/
Monroe IL-Randolph IL-Ste. Genevieve MO-
815 PM CDT Sun Oct 24 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR SOUTH
CENTRAL MONROE...WEST CENTRAL RANDOLPH AND NORTHWESTERN STE.
GENEVIEVE COUNTIES...
At 814 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Bloomsdale, moving northeast at 40 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...
Bloomsdale, Prairie Du Rocher, Kellogg and Kidd.
This includes Interstate 55 in Missouri between exits 154 and 162.
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 3796 9036 3798 9032 3804 9041 3809 9033
3809 9029 3811 9028 3812 9025 3813 9025
3819 9016 3801 9005 3792 9033
TIME...MOT...LOC 0114Z 238DEG 33KT 3803 9028
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
GlassThe 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, 7:07 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Franklin, Gasconade, Montgomery, Osage, Warren | 38 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, 8:09 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 |
| Oct 24, 7:59 PM CDT | River Flood Warning | LSX | Brown | 33 hr |
| Oct 24, 8:27 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 48 min |
| Oct 24, 9:00 PM CDT | Tornado Warning | LSX | Clinton, Randolph, Saint Clair, Washington | 45 min |
| Oct 24, 9:08 PM CDT | Tornado Warning | LSX | Randolph | 40 min |
| Oct 24, 9:15 PM CDT | Tornado Warning | LSX | Randolph | 19 min |
| Oct 24, 9:33 PM CDT | Tornado Warning | LSX | Saint Clair | 30 min |
| Oct 24, 9:48 PM CDT | Tornado Warning | LSX | Bond, Clinton, Madison | 42 min |
| Oct 24, 9:58 PM CDT | Tornado Warning | LSX | Marion, Washington | 16 min |
| Oct 24, 10:13 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Fayette, Marion | 62 min |
| Oct 24, 10:40 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Marion | 26 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.