Alert archive / Missouri / Tornado Warnings in 2024

Tornado Warning 47, NWS St. Louis, MO

May 7, 2024Audrain County, Ralls County, Missouri

NWS St. Louis, MO issued this tornado warning at May 7, 2024, 2:57 AM CDT for Audrain County, Ralls County, Missouri. It was in force for 17 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
May 7, 2024, 2:57 AM CDT (07:57 UTC)
Expired
May 7, 2024, 3:14 AM CDT
In force
17 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Audrain County, MO, Ralls County, MO

The radar

The St Louis radar (KLSX), 107 km from the middle of the area, began a volume at 07:58 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.

IssuedProductOfficeLasted
May 7, 12:53 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 8.0 hours before the alert went out and 267 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, Davenport, at 00:00Z on 2024-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLEL10008507005003002001001 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, Davenport, at 00:00Z on 2024-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939Sfc1 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
2 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1372 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

086 
WFUS53 KLSX 070757
TORLSX
MOC007-173-070830-
/O.NEW.KLSX.TO.W.0047.240507T0757Z-240507T0830Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
257 AM CDT Tue May 7 2024

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Southwestern Ralls County in northeastern Missouri...
  Northeastern Audrain County in central Missouri...

* Until 330 AM CDT.

* At 257 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over Laddonia, moving northeast at 50 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...
  Laddonia and Farber around 300 AM CDT.
  Vandalia around 305 AM CDT.

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 3956 9148 3926 9143 3917 9168 3928 9179
TIME...MOT...LOC 0757Z 226DEG 43KT 3926 9168 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Carney
1 follow-up statement
888 
WWUS53 KLSX 070814
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
314 AM CDT Tue May 7 2024

MOC007-173-070824-
/O.CAN.KLSX.TO.W.0047.000000T0000Z-240507T0830Z/
Ralls MO-Audrain MO-
314 AM CDT Tue May 7 2024

...THE TORNADO WARNING FOR SOUTHWESTERN RALLS AND NORTHEASTERN
AUDRAIN COUNTIES IS CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 AM CDT for central and
northeastern Missouri.

Remember, a Severe Thunderstorm Warning still remains in effect.
&&

LAT...LON 3956 9148 3926 9143 3917 9168 3928 9179
TIME...MOT...LOC 0812Z 226DEG 43KT 3940 9149 

$$

Carney

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 1:12 AM CDTSevere Thunderstorm WarningLSXCole, Moniteau78 min
May 7, 1:25 AM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway, Monroe80 min
May 7, 2:05 AM CDTSevere Thunderstorm WarningLSXKnox, Shelby70 min
May 7, 2:15 AM CDTSevere Thunderstorm WarningLSXOsage60 min
May 7, 2:19 AM CDTSevere Thunderstorm WarningLSXMonroe41 min
May 7, 2:34 AM CDTTornado WarningLSXKnox14 min
May 7, 2:41 AM CDTSevere Thunderstorm WarningLSXAudrain, Callaway, Montgomery64 min
May 7, 2:59 AM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade, Osage46 min
May 7, 3:06 AM CDTSevere Thunderstorm WarningLSXLincoln, Pike, Warren54 min
May 7, 3:09 AM CDTSevere Thunderstorm WarningLSXCrawford36 min
May 7, 3:27 AM CDTSevere Thunderstorm WarningLSXIron, Reynolds, Washington63 min
May 7, 3:41 AM CDTSevere Thunderstorm WarningLSXFranklin49 min
May 7, 3:49 AM CDTTornado Warning Tornado observedLSXCrawford, Franklin, Washington26 min
May 7, 4:05 AM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis, City of Saint Louis40 min
May 7, 4:13 AM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois47 min
May 7, 4:16 AM CDTSevere Thunderstorm WarningLSXSaint Charles, Warren44 min
May 7, 4:20 AM CDTSevere Thunderstorm WarningLSXIron, Reynolds, Washington40 min
May 7, 4:23 AM CDTTornado WarningLSXSaint Charles, Saint Louis37 min
May 7, 4:48 AM CDTSevere Thunderstorm WarningLSXMadison, Saint Francois42 min
May 7, 4:58 AM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois47 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.