Alert archive / Missouri / Tornado Warnings in 2024

Tornado Warning 57, NWS St. Louis, MO

May 8, 2024Iron County, Madison County, Missouri

NWS St. Louis, MO issued this tornado warning at May 8, 2024, 8:57 PM CDT for Iron County, Madison County, Missouri. It was in force for 33 min. 6 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
May 8, 2024, 8:57 PM CDT (01:57 UTC)
Expired
May 8, 2024, 9:30 PM CDT
In force
33 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

The radar

The St Louis radar (KLSX), 145 km from the middle of the area, began a volume at 02:01 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
May 8, 9:01 PM CDTTORNADOArcadia, MOAn EF-1 tornado with max winds of 94mph touched down in Arcadia, MO causing damage to trees and a few structures. It tracked east and lifted about 5 minutes later 12 miles away.
May 8, 9:01 PM CDTTORNADOArcadia, MOCorrects previous tornado report from Arcadia. An EF-1 tornado with peak winds of 93 mph touched down in Arcadia, MO and tracked east for two minutes before lifting west-southwest of Roselle, MO.
May 8, 9:06 PM CDTTORNADO3 Sw Catherine Place, MOAn EF-0 tornado with peak winds of 85 mph touched down along Madison County Road 503 north of the intersection with Madison County Road 505, just to the west of Fredericktown. The tornado produced tree damage and minor damage to homes and farm outbuildings acr
May 8, 9:08 PM CDTTSTM WND DMGFredericktown, MONumerous reports of power outages in Fredericktown.
May 8, 9:10 PM CDTTSTM WND DMG3 S Catherine Place, MOVia subreddit. Large tree of unknown health fallen in Fredericktown.
May 8, 9:15 PM CDTTSTM WND DMG2 N Mine La Motte, MOTrees and lines down near Dear Run Lake. Time estimated from radar.

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
May 8, 4:42 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 2.0 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.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2024-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3301 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 2024-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 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
3301 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
746 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
221 m²/s²
Significant tornado parameter
2.9
Supercell composite
13.7

Open this sounding in Storm Lab

The text

As transmitted.

377 
WFUS53 KLSX 090157
TORLSX
MOC093-123-090230-
/O.NEW.KLSX.TO.W.0057.240509T0157Z-240509T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
857 PM CDT Wed May 8 2024

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Eastern Iron County in southeastern Missouri...
  Madison County in southeastern Missouri...

* Until 930 PM CDT.

* At 857 PM CDT, severe thunderstorms capable of producing tornadoes 
  were located along a line extending from near Pilot Knob to near 
  Sam A. Baker State Park, moving east at 60 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.

* These dangerous storms will be near...
  Ironton, Pilot Knob, Arcadia, Saco, and Roselle around 900 PM CDT.
  Fredericktown, Junction City, Cobalt, and Buckhorn around 910 PM 
  CDT.
  Marquand around 915 PM CDT.

This also includes Fort Davidson Historic Site.
 
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 3727 9066 3765 9076 3764 9015 3755 9014
      3731 9014 3732 9055 3727 9055
TIME...MOT...LOC 0157Z 261DEG 54KT 3764 9068 3730 9058 

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

$$

Britt
3 follow-up statements
884 
WWUS53 KLSX 090212
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
912 PM CDT Wed May 8 2024

MOC093-090221-
/O.CAN.KLSX.TO.W.0057.000000T0000Z-240509T0230Z/
Iron MO-
912 PM CDT Wed May 8 2024

...THE TORNADO WARNING FOR EASTERN IRON COUNTY IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area.  Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until midnight CDT for southeastern
Missouri.

&&

LAT...LON 3764 9049 3764 9015 3755 9014 3731 9014
      3732 9052
TIME...MOT...LOC 0211Z 271DEG 29KT 3762 9033 3733 9035 

$$

MOC123-090230-
/O.CON.KLSX.TO.W.0057.000000T0000Z-240509T0230Z/
Madison MO-
912 PM CDT Wed May 8 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR MADISON
COUNTY IN SOUTHEASTERN MISSOURI...

At 911 PM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located along a
line extending from near Junction City to near Buckhorn, moving east
at 35 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.

These dangerous storms will be near...
  Fredericktown, Junction City, Cobalt, and Buckhorn around 915 PM 
  CDT.

Other locations in the path of these tornadic storms include
Marquand.

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.

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

&&

LAT...LON 3764 9049 3764 9015 3755 9014 3731 9014
      3732 9052
TIME...MOT...LOC 0211Z 271DEG 29KT 3762 9033 3733 9035 

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

$$

Britt
159 
WWUS53 KLSX 090222
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
922 PM CDT Wed May 8 2024

MOC123-090230-
/O.CON.KLSX.TO.W.0057.000000T0000Z-240509T0230Z/
Madison MO-
922 PM CDT Wed May 8 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR MADISON
COUNTY IN SOUTHEASTERN MISSOURI...

At 922 PM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located along a
line extending from near Womac to near Cascade, moving east 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.

These tornadic storms will remain over mainly rural areas of Madison
County in southeastern Missouri, including the following locations...
Catherine Place and Mine La Motte.

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.

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

&&

LAT...LON 3764 9040 3764 9015 3755 9014 3731 9014
      3732 9043
TIME...MOT...LOC 0222Z 274DEG 33KT 3761 9018 3734 9020 

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

$$

Britt
374 
WWUS53 KLSX 090231
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
931 PM CDT Wed May 8 2024

MOC123-090241-
/O.EXP.KLSX.TO.W.0057.000000T0000Z-240509T0230Z/
Madison MO-
931 PM CDT Wed May 8 2024

...THE TORNADO WARNING FOR MADISON COUNTY IN SOUTHEASTERN MISSOURI
HAS EXPIRED...

The storms which prompted the warning have moved out of the area.
Therefore, the warning has been allowed to expire.

A Tornado Watch remains in effect until midnight CDT for southeastern
Missouri.

&&

LAT...LON 3764 9040 3764 9015 3755 9014 3731 9014
      3732 9043
TIME...MOT...LOC 0231Z 261DEG 54KT 3763 9005 3736 9007 

$$

Britt

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 8:21 PM CDTSevere Thunderstorm WarningLSXIron, Reynolds39 min
May 8, 8:38 PM CDTRiver Flood WarningLSXSaint Charles, Saint Louis3 days
May 8, 8:38 PM CDTRiver Flood WarningLSXFranklin, Warren57 hr
May 8, 9:17 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXSainte Genevieve, Saint Francois29 min
May 8, 10:01 PM CDTRiver Flood WarningLSXFranklin69 hr
May 8, 10:01 PM CDTRiver Flood WarningLSXJefferson, Saint Louis5 days
May 8, 10:01 PM CDTRiver Flood WarningLSXJefferson, Saint Louis5 days
May 8, 10:05 PM CDTRiver Flood WarningLSXSaint Charles5 days
May 8, 10:05 PM CDTRiver Flood WarningLSXJefferson3 days
May 9, 10:02 AM CDTRiver Flood WarningLSXJefferson, Saint Louis5 days

Nearby

Tornado Warnings in Missouri, 2024Every tornado warning in 2024Tornadoes in 2024

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.