Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 30, NWS St. Louis, MO

October 24, 2021Madison County, Saint Francois County, Missouri

NWS St. Louis, MO issued this tornado warning at Oct 24, 2021, 8:48 PM CDT for Madison County, Saint Francois County, Missouri. It was in force for 27 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
Oct 24, 2021, 8:48 PM CDT (01:48 UTC)
Expired
Oct 24, 2021, 9:15 PM CDT
In force
27 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Observed
Damage threat
Considerable
Hail
0.75 in

Counties Madison County, MO, Saint Francois County, MO

The radar

The St Louis radar (KLSX), 125 km from the middle of the area, began a volume at 01:49 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

TimeReportWhereRemark
Oct 24, 8:56 PM CDTTORNADOFredericktown, MOBLACK RIVER ELECTRIC DAMAGED AS WELL AS A STORAGE BUILDING AND LOCAL FIRE STATION IN TOWN.
Oct 24, 8:56 PM CDTTORNADOFredericktown, MOTWITTER VIDEO OF DESTROYED CAMPER ON ROAD.
Oct 24, 8:56 PM CDTTORNADOJunction City, MONUMEROUS TREES UPROOTED/SNAPPED AND POWER POLES SNAPPED. SEVERAL METAL ROOFS LIFTED OFF OF HOUSES.

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.

IssuedProductOfficeLasted
Oct 24, 5:44 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.8 hours before the alert went out and 312 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.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2021-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1375 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2021-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1375 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1184 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
289 m²/s²
Significant tornado parameter
1.4
Supercell composite
10.9

Open this sounding in Storm Lab

The text

As transmitted.

043 
WFUS53 KLSX 250148
TORLSX
MOC123-187-250215-
/O.NEW.KLSX.TO.W.0030.211025T0148Z-211025T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
848 PM CDT Sun Oct 24 2021

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northern Madison County in southeastern Missouri...
  Southeastern St. Francois County in southeastern Missouri...

* Until 915 PM CDT.
    
* At 847 PM CDT, a confirmed large and extremely dangerous tornado
  was located near Fredericktown, moving northeast at 40 mph.

  This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

  HAZARD...Damaging tornado.

  SOURCE...Radar confirmed tornado.

  IMPACT...You are in a life-threatening situation. Flying debris 
           may be deadly to those caught without shelter. Mobile 
           homes will be destroyed. Considerable damage to homes, 
           businesses, and vehicles is likely and complete 
           destruction is possible.

* The tornado will be near...
  Fredericktown and Cobalt around 855 PM CDT.
  Junction City around 900 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3758 9050 3770 9024 3767 9020 3770 9015
      3767 9011 3764 9015 3757 9014 3747 9046
TIME...MOT...LOC 0147Z 246DEG 34KT 3755 9041 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...<.75 IN

$$

Glass
2 follow-up statements
133 
WWUS53 KLSX 250156
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
856 PM CDT Sun Oct 24 2021

MOC123-187-250215-
/O.CON.KLSX.TO.W.0030.000000T0000Z-211025T0215Z/
Madison MO-St. Francois MO-
856 PM CDT Sun Oct 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR NORTHERN
MADISON AND SOUTHEASTERN ST. FRANCOIS COUNTIES IN SOUTHEASTERN
MISSOURI...
        
At 855 PM CDT, a confirmed large and extremely dangerous tornado was
located near Junction City, moving northeast at 30 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be destroyed. Considerable damage to homes, 
         businesses, and vehicles is likely and complete destruction 
         is possible.

The tornado will be near...
  Fredericktown, Junction City and Cobalt around 900 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3758 9050 3770 9024 3767 9020 3770 9015
      3767 9011 3764 9015 3757 9014 3747 9046
TIME...MOT...LOC 0155Z 241DEG 28KT 3758 9035 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...<.75 IN

$$

Glass
469 
WWUS53 KLSX 250204
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
904 PM CDT Sun Oct 24 2021

MOC123-187-250215-
/O.CON.KLSX.TO.W.0030.000000T0000Z-211025T0215Z/
Madison MO-St. Francois MO-
904 PM CDT Sun Oct 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR NORTHERN
MADISON AND SOUTHEASTERN ST. FRANCOIS COUNTIES IN SOUTHEASTERN
MISSOURI...
        
At 904 PM CDT, a confirmed large and extremely dangerous tornado was
located near Womac, moving northeast at 45 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be destroyed. Considerable damage to homes, 
         businesses, and vehicles is likely and complete destruction 
         is possible.

This tornadic thunderstorm will remain over mainly rural areas of
northern Madison and southeastern St. Francois Counties in
southeastern Missouri, including the following locations... Catherine
Place and Mine La Motte.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3765 9034 3767 9029 3767 9020 3770 9015
      3767 9011 3764 9015 3757 9014 3747 9046
      3751 9048 3753 9043 3765 9035
TIME...MOT...LOC 0204Z 246DEG 38KT 3762 9022 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...<.75 IN

$$

Glass

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 24, 7:00 PM CDTSevere Thunderstorm WarningLSXPike34 min
Oct 24, 7:03 PM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery, Warren42 min
Oct 24, 7:06 PM CDTTornado WarningLSXReynolds39 min
Oct 24, 7:07 PM CDTSevere Thunderstorm WarningLSXCallaway, Franklin, Gasconade, Montgomery, Osage, Warren38 min
Oct 24, 7:09 PM CDTTornado WarningLSXCrawford, Iron, Washington31 min
Oct 24, 7:37 PM CDTSevere Thunderstorm WarningLSXReynolds38 min
Oct 24, 7:39 PM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve, Saint Francois, Washington51 min
Oct 24, 7:48 PM CDTTornado WarningLSXIron, Madison, Reynolds, Saint Francois27 min
Oct 24, 8:03 PM CDTTornado WarningLSXSainte Genevieve, Saint Francois42 min
Oct 24, 8:09 PM CDTTornado WarningLSXSainte Genevieve, Saint Francois40 min
Oct 24, 8:10 PM CDTTornado WarningLSXIron, Madison, Reynolds50 min
Oct 24, 8:23 PM CDTTornado WarningLSXIron, Madison, Reynolds52 min
Oct 24, 8:34 PM CDTTornado Warning Tornado observedConsiderable damage threatLSXSainte Genevieve41 min
Oct 24, 9:08 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis54 min
Oct 24, 9:11 PM CDTTornado WarningLSXIron, Madison49 min
Oct 24, 9:12 PM CDTFlash Flood WarningLSXIron, Madison4 hr
Oct 24, 9:37 PM CDTSevere Thunderstorm WarningLSXIron, Reynolds36 min
Oct 24, 10:07 PM CDTSevere Thunderstorm WarningLSXIron, Reynolds38 min
Oct 24, 10:12 PM CDTFlash Flood WarningLSXMadison4 hr

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.