Alert archive / Missouri / Tornado Warnings in 2024

Tornado Warning 7, NWS St. Louis, MO

March 14, 2024Saint Charles County, Warren County, Missouri

NWS St. Louis, MO issued this tornado warning at Mar 14, 2024, 3:39 PM CDT for Saint Charles County, Warren County, Missouri. It was in force for 51 min. 26 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
Mar 14, 2024, 3:39 PM CDT (20:39 UTC)
Expired
Mar 14, 2024, 4:30 PM CDT
In force
51 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

Counties Saint Charles County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 32 km from the middle of the area, began a volume at 20:43 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
Mar 14, 3:40 PM CDTHAIL 1Warrenton, MOPhoto submission via social media.
Mar 14, 3:43 PM CDTHAIL 11 N Warrenton, MOPhoto submitted by the Warrenton Fire Dept. Time estimated by radar.
Mar 14, 3:43 PM CDTHAIL 12 N Warrenton, MOPhoto submission via social media. Time estimated by radar.
Mar 14, 3:45 PM CDTHAIL 12 Sw Warrenton, MO
Mar 14, 3:54 PM CDTHAIL 1.75Wright City, MOHam reported golf ball sized hail in Wright City.
Mar 14, 3:57 PM CDTHAIL 1.751 W Wright City, MOReport from mPING: Golf Ball (1.75 in.).
Mar 14, 4:00 PM CDTHAIL 1.5Wright City, MOEstimated size from Facebook post. Time estimated from radar.
Mar 14, 4:04 PM CDTHAIL 11 Nw Wentzville, MOReport from mPING: Quarter (1.00 in.).
Mar 14, 4:04 PM CDTHAIL 12 Sw Flint Hill, MODelayed report, mping report 1 mile nw of Wentzville.
Mar 14, 4:05 PM CDTHAIL 1.251 E Wentzville, MOReport via social media.
Mar 14, 4:05 PM CDTHAIL 22 Sw Flint Hill, MOEstimated size from a photo. Time estimated by radar.
Mar 14, 4:05 PM CDTHAIL 2Wentzville, MODelayed report, time estimated from radar. Measured 2.25 inch hail.
Mar 14, 4:05 PM CDTHAIL 3Warrenton, MODelayed report.
Mar 14, 4:06 PM CDTHAIL 12 Sw Flint Hill, MOReport from mPING: Quarter (1.00 in.).
Mar 14, 4:06 PM CDTHAIL 1.751 N Wentzville, MOReport from mPING: Golf Ball (1.75 in.).
Mar 14, 4:06 PM CDTHAIL 1.75Wentzville, MODelayed report.
Mar 14, 4:08 PM CDTHAIL 13 Sw Wentzville, MOReport from mPING: Quarter (1.00 in.).
Mar 14, 4:08 PM CDTHAIL 1.251 W Wentzville, MOReport from mPING: Half Dollar (1.25 in.).
Mar 14, 4:08 PM CDTHAIL 1.5Flint Hill, MODelayed report.
Mar 14, 4:12 PM CDTHAIL 1.752 E Flint Hill, MO
Mar 14, 4:13 PM CDTHAIL 12 S Lake Saint Louis, MODelayed report.
Mar 14, 4:13 PM CDTHAIL 22 E Wentzville, MO
Mar 14, 4:16 PM CDTHAIL 22 W Lake Saint Louis, MOReport from mPING: Hen Egg (2.00 in.).
Mar 14, 4:19 PM CDTHAIL 3Lake Saint Louis, MODelayed report. Hail was approximately the size of a palm or two golf balls put together. Estimated 3-4 inches.
Mar 14, 4:26 PM CDTHAIL 2.75Lake Saint Louis, MODelayed report.
Mar 14, 4:28 PM CDTHAIL 2Lake Saint Louis, MODelayed report, 2 to 2.5 inch hail.

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
Mar 14, 1:33 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.7 hours before the alert went out and 255 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, Lincoln, IL at 12:00Z on 2024-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 461 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, Lincoln, IL at 12:00Z on 2024-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.193958Sfc1 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
461 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
856 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

970 
WFUS53 KLSX 142039
TORLSX
MOC183-219-142130-
/O.NEW.KLSX.TO.W.0007.240314T2039Z-240314T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
339 PM CDT Thu Mar 14 2024

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Western St. Charles County in east central Missouri...
  Central Warren County in east central Missouri...

* Until 430 PM CDT.

* At 339 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles northwest of Treloar, moving east at 35 mph.

  HAZARD...Tornado and golf ball size hail.

  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...
  Warrenton, Truesdale, and Innsbrook around 345 PM CDT.
  Wright City around 355 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Wentzville, Lake St. Louis and Josephville.

This includes Interstate 70 in Missouri between exits 188 and 212.
 
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 3884 9127 3886 9126 3887 9111 3887 9096
      3889 9096 3889 9087 3887 9082 3888 9081
      3891 9080 3891 9079 3861 9076 3860 9077
      3869 9129 3871 9131 3885 9132
TIME...MOT...LOC 2039Z 261DEG 32KT 3874 9124 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

MRB
3 follow-up statements
367 
WWUS53 KLSX 142053
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
353 PM CDT Thu Mar 14 2024

MOC183-219-142130-
/O.CON.KLSX.TO.W.0007.000000T0000Z-240314T2130Z/
St. Charles MO-Warren MO-
353 PM CDT Thu Mar 14 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
NORTHWESTERN ST. CHARLES AND EAST CENTRAL WARREN COUNTIES...

At 353 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Innsbrook, moving east at 35 mph.

HAZARD...Tornado and golf ball size hail.

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...
  Wentzville, Wright City, Innsbrook, Lake St. Louis and 
  Josephville.

This includes Interstate 70 in Missouri between exits 193 and 212.
 
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 3885 9118 3887 9111 3887 9096 3889 9096
      3889 9087 3887 9082 3888 9081 3891 9080
      3891 9079 3866 9077 3872 9117
TIME...MOT...LOC 2053Z 261DEG 32KT 3876 9108 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

MRB
790 
WWUS53 KLSX 142101
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
401 PM CDT Thu Mar 14 2024

MOC183-219-142130-
/O.CON.KLSX.TO.W.0007.000000T0000Z-240314T2130Z/
St. Charles MO-Warren MO-
401 PM CDT Thu Mar 14 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
NORTHWESTERN ST. CHARLES AND EAST CENTRAL WARREN COUNTIES...

At 401 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Innsbrook, moving east at 35 mph.

HAZARD...Tornado and golf ball size hail.

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...
Wentzville, Lake St. Louis, Wright City, Innsbrook, New Melle,
Josephville, Flint Hill, and Foristell.

This includes Interstate 70 in Missouri between exits 199 and 212.
 
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 3884 9106 3887 9096 3889 9096 3889 9087
      3887 9082 3888 9081 3891 9080 3891 9079
      3868 9077 3872 9103
TIME...MOT...LOC 2101Z 261DEG 32KT 3877 9099 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

MRB
157 
WWUS53 KLSX 142112
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
412 PM CDT Thu Mar 14 2024

MOC219-142122-
/O.CAN.KLSX.TO.W.0007.000000T0000Z-240314T2130Z/
Warren MO-
412 PM CDT Thu Mar 14 2024

...THE TORNADO WARNING FOR EAST CENTRAL WARREN 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 900 PM CDT for east central
Missouri.

&&

LAT...LON 3872 9077 3875 9092 3885 9092 3889 9087
      3887 9082 3888 9081 3891 9080 3891 9079
TIME...MOT...LOC 2112Z 260DEG 34KT 3879 9084 

$$

MOC183-142130-
/O.CON.KLSX.TO.W.0007.000000T0000Z-240314T2130Z/
St. Charles MO-
412 PM CDT Thu Mar 14 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
NORTHWESTERN ST. CHARLES COUNTY...

At 412 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Wentzville, moving east at 40 mph.

HAZARD...Tornado and golf ball size hail.

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...
Wentzville, Lake St. Louis, Josephville, and Flint Hill.

This includes Interstate 70 in Missouri between exits 208 and 212.
 
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 3872 9077 3875 9092 3885 9092 3889 9087
      3887 9082 3888 9081 3891 9080 3891 9079
TIME...MOT...LOC 2112Z 260DEG 34KT 3879 9084 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

MRB

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 7:24 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis, City of Saint Louis51 min
Mar 13, 7:32 PM CDTSevere Thunderstorm WarningLSXBoone, Callaway, Cole21 min
Mar 13, 7:53 PM CDTSevere Thunderstorm WarningLSXCallaway, Gasconade, Montgomery, Osage52 min
Mar 13, 9:19 PM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery, Warren41 min
Mar 14, 2:22 AM CDTSevere Thunderstorm WarningLSXKnox, Lewis, Marion, Monroe, Shelby38 min
Mar 14, 2:40 AM CDTSevere Thunderstorm WarningLSXLewis, Marion50 min
Mar 14, 7:25 AM CDTSevere Thunderstorm WarningLSXSaint Charles50 min
Mar 14, 7:28 AM CDTTornado WarningLSXSaint Charles22 min
Mar 14, 7:33 AM CDTTornado WarningLSXSaint Charles, Saint Louis27 min
Mar 14, 7:42 AM CDTSevere Thunderstorm WarningLSXBoone, Callaway, Cole, Moniteau31 min
Mar 14, 7:47 AM CDTSevere Thunderstorm WarningLSXJefferson, Saint Charles, Saint Louis, City of Saint Louis43 min
Mar 14, 8:26 AM CDTSevere Thunderstorm WarningLSXCallaway, Gasconade, Montgomery, Osage31 min
Mar 14, 2:22 PM CDTSevere Thunderstorm WarningLSXCallaway38 min
Mar 14, 2:53 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Monroe67 min
Mar 14, 2:58 PM CDTSevere Thunderstorm WarningLSXCallaway, Franklin, Gasconade, Montgomery, Osage, Warren47 min
Mar 14, 3:20 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Washington40 min
Mar 14, 3:29 PM CDTSevere Thunderstorm WarningLSXAudrain, Pike, Ralls46 min
Mar 14, 3:34 PM CDTSevere Thunderstorm WarningLSXBoone, Moniteau56 min
Mar 14, 3:47 PM CDTSevere Thunderstorm WarningLSXCallaway, Montgomery43 min
Mar 14, 3:51 PM CDTSevere Thunderstorm WarningLSXPike39 min
Mar 14, 3:53 PM CDTSevere Thunderstorm WarningLSXCrawford, Washington38 min
Mar 14, 3:57 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXJefferson, Saint Louis63 min
Mar 14, 4:01 PM CDTTornado WarningLSXJefferson27 min
Mar 14, 4:07 PM CDTSevere Thunderstorm WarningLSXBoone, Callaway53 min
Mar 14, 4:08 PM CDTSevere Thunderstorm WarningLSXCrawford37 min
Mar 14, 4:11 PM CDTTornado WarningLSXSaint Charles, Saint Louis41 min
Mar 14, 4:18 PM CDTSevere Thunderstorm WarningLSXLincoln, Warren34 min
Mar 14, 4:21 PM CDTSevere Thunderstorm WarningLSXLincoln, Pike54 min
Mar 14, 4:25 PM CDTSevere Thunderstorm WarningLSXCity of Saint Louis65 min
Mar 14, 4:32 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXSaint Louis, City of Saint Louis25 min
Mar 14, 4:38 PM CDTTornado WarningLSXJefferson25 min
Mar 14, 5:13 PM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery, Saint Charles, Warren47 min
Mar 14, 5:17 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis, City of Saint Louis43 min
Mar 14, 5:27 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXCrawford, Iron, Reynolds, Washington78 min
Mar 14, 5:40 PM CDTSevere Thunderstorm WarningLSXCity of Saint Louis50 min
Mar 14, 5:42 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis32 min
Mar 14, 5:46 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Montgomery, Warren44 min
Mar 14, 5:54 PM CDTTornado WarningLSXFranklin, Warren36 min
Mar 14, 5:55 PM CDTSevere Thunderstorm WarningLSXLincoln, Saint Charles, Warren50 min
Mar 14, 6:00 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis30 min
Mar 14, 6:08 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis21 min
Mar 14, 6:09 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXLincoln, Saint Charles51 min
Mar 14, 6:18 PM CDTSevere Thunderstorm WarningLSXJefferson, Madison, Sainte Genevieve, Saint Francois57 min
Mar 14, 6:42 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis27 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.