Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 27, NWS St. Louis, MO

October 24, 2021Iron County, Madison County, Reynolds County, Missouri

NWS St. Louis, MO issued this tornado warning at Oct 24, 2021, 8:10 PM CDT for Iron County, Madison County, Reynolds County, Missouri. It was in force for 50 min. 2 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, 8:10 PM CDT (01:10 UTC)
Expired
Oct 24, 2021, 9:00 PM CDT
In force
50 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Iron County, MO, Madison County, MO, Reynolds County, MO

The radar

The St Louis radar (KLSX), 132 km from the middle of the area, began a volume at 01:13 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, 8:30 PM CDTTORNADO6 E Chloride, MOA TORNADO BRIEFLY TOUCHED DOWN ALONG HIGHWAY E IN SOUTHERN IRON COUNTY, MO. THIS TORNADO UPROOTED SEVERAL TREES AND BROKE BRANCHES ON NUMEROUS OTHER TREES. THE TORNADO CONTINUED INTO A FIELD WHERE IT DAMAGED A MANUFACTURED HOME. AFTER LIFTING, THE STORM THAT P
Oct 24, 8:30 PM CDTTORNADO6 E Chloride, MOA TORNADO BRIEFLY TOUCHED DOWN ALONG HIGHWAY E IN SOUTHERN IRON COUNTY, MO. THIS TORNADO UPROOTED SEVERAL TREES AND BROKE BRANCHES ON NUMEROUS OTHER TREES. THE TORNADO CONTINUED INTO A FIELD WHERE IT DAMAGED A MANUFACTURED HOME. AFTER LIFTING, THE STORM THAT P

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, 2:06 PM CDTTornado WatchSPC9 hr
Oct 24, 5:44 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.2 hours before the alert went out and 284 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, Springfield, MO at 00:00Z on 2021-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1534 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, Springfield, MO at 00:00Z on 2021-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 296 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
1534 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
846 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
296 m²/s²
0-3 km storm-relative helicity
317 m²/s²
Significant tornado parameter
2.8
Supercell composite
12.3

Open this sounding in Storm Lab

The text

As transmitted.

883 
WFUS53 KLSX 250110
TORLSX
MOC093-123-179-250200-
/O.NEW.KLSX.TO.W.0027.211025T0110Z-211025T0200Z/

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

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Southeastern Iron County in southeastern Missouri...
  Northeastern Reynolds County in southeastern Missouri...
  Northwestern Madison County in southeastern Missouri...

* Until 900 PM CDT.
    
* At 810 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles northwest of Annapolis, 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 dangerous storm will be near...
  Glover around 825 PM CDT.
  Ironton and Arcadia around 830 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Roselle and Fredericktown.

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 3746 9094 3765 9055 3764 9019 3733 9082
TIME...MOT...LOC 0110Z 239DEG 39KT 3742 9083 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Glass
2 follow-up statements
287 
WWUS53 KLSX 250124
SVSLSX

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

MOC093-123-179-250200-
/O.CON.KLSX.TO.W.0027.000000T0000Z-211025T0200Z/
Iron MO-Reynolds MO-Madison MO-
824 PM CDT Sun Oct 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
SOUTHEASTERN IRON...EAST CENTRAL REYNOLDS AND NORTHWESTERN MADISON
COUNTIES IN SOUTHEASTERN MISSOURI...
    
At 824 PM CDT, a confirmed tornado was located over Glover, moving
northeast at 40 mph.

HAZARD...Damaging tornado.

SOURCE...Law enforcement confirmed tornado near Glover.

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...
  Arcadia, Roselle and Fredericktown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3743 9089 3765 9055 3764 9019 3733 9082
TIME...MOT...LOC 0124Z 242DEG 37KT 3747 9068 

TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN

$$

Glass
235 
WWUS53 KLSX 250135
SVSLSX

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

MOC093-123-179-250200-
/O.CON.KLSX.TO.W.0027.000000T0000Z-211025T0200Z/
Iron MO-Reynolds MO-Madison MO-
835 PM CDT Sun Oct 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
SOUTHEASTERN IRON...EAST CENTRAL REYNOLDS AND NORTHWESTERN MADISON
COUNTIES IN SOUTHEASTERN MISSOURI...
        
At 835 PM CDT, a confirmed large and extremely dangerous tornado was
located near Roselle, 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.

Locations impacted include...
Fredericktown, Ironton, Arcadia, Glover, Roselle, Sabula, Mine La
Motte, Chloride, Catherine Place, Hogan and Lesterville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, 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 3743 9089 3765 9055 3764 9019 3733 9082
TIME...MOT...LOC 0135Z 242DEG 38KT 3751 9054 

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, 8:23 PM CDTTornado WarningLSXIron, Madison, Reynolds52 min
Oct 24, 8:34 PM CDTTornado Warning Tornado observedConsiderable damage threatLSXSainte Genevieve41 min
Oct 24, 8:48 PM CDTTornado Warning Tornado observedConsiderable damage threatLSXMadison, Saint Francois27 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.