Alert archive / Missouri / Tornado Warnings in 2024

Tornado Warning 52, NWS St. Louis, MO

May 8, 2024Franklin County, Jefferson County, Washington County, Missouri

NWS St. Louis, MO issued this tornado warning at May 8, 2024, 12:11 PM CDT for Franklin County, Jefferson County, Washington County, Missouri. It was in force for 49 min. 27 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, 12:11 PM CDT (17:11 UTC)
Expired
May 8, 2024, 1:00 PM CDT
In force
49 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.75 in

Counties Franklin County, MO, Jefferson County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 59 km from the middle of the area, began a volume at 17:13 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
May 8, 12:20 PM CDTHAIL 1Lonedell, MOQuarter sized hail.
May 8, 12:20 PM CDTHAIL 1Lonedell, MOQuarter sized hail.
May 8, 12:31 PM CDTHAIL 11 Wsw Oermann, MONickel to quarter sized hail.
May 8, 12:31 PM CDTHAIL 11 Wsw Oermann, MONickel to quarter sized hail.
May 8, 12:31 PM CDTHAIL 2.751 Sse Grubville, MOMedia relaying reports: Baseball sized hail being reported west of Hillsboro.
May 8, 12:31 PM CDTHAIL 2.751 Sse Grubville, MOMedia relaying reports: Baseball sized hail being reported west of Hillsboro.
May 8, 12:42 PM CDTHAIL 2.753 Sw Hillsboro, MOCorrects previous hail report from 3 SW Hillsboro. Time estimated from radar.
May 8, 12:43 PM CDTHAIL 12 Ene Morse Mill, MO
May 8, 12:43 PM CDTHAIL 12 Ene Morse Mill, MO
May 8, 12:47 PM CDTHAIL 1.75Dittmer, MOGolf ball sized hail at Dittmer Ridge Road and Hwy 30.
May 8, 12:47 PM CDTHAIL 1.75Dittmer, MOGolf ball sized hail at Dittmer Ridge Road and Hwy 30.
May 8, 12:52 PM CDTHAIL 2.75Hillsboro, MOTrooper reports golf ball to baseball sized hail in Hillsboro.
May 8, 12:52 PM CDTHAIL 2.75Hillsboro, MOTrooper reports golf ball to baseball sized hail in Hillsboro.
May 8, 12:54 PM CDTHAIL 11 E Hillsboro, MOQuarter sized hail estimated from picture.
May 8, 12:54 PM CDTHAIL 11 E Hillsboro, MOQuarter sized hail estimated from picture.
May 8, 12:54 PM CDTHAIL 1.752 Wnw Victoria, MOVia Twitter: Size estimated from picture and time estimated from radar.
May 8, 12:54 PM CDTHAIL 1.752 Wnw Victoria, MOVia Twitter: Size estimated from picture and time estimated from radar.
May 8, 12:54 PM CDTHAIL 2.752 Sse Hillsboro, MOVia Twitter: Report of baseball sized hail time estimated from radar.
May 8, 12:54 PM CDTHAIL 2.752 Sse Hillsboro, MOVia Twitter: Report of baseball sized hail time estimated from radar.
May 8, 1:02 PM CDTHAIL 1.252 N Olympian Village, MOHalf dollar sized hail 3 SE Hematite. Time estimated from radar.
May 8, 1:02 PM CDTHAIL 1.252 N Olympian Village, MOHalf dollar sized hail 3 SE Hematite. Time estimated from radar.
May 8, 1:02 PM CDTHAIL 1.751 Nne Hematite, MOUp to golf ball sized hail measured.
May 8, 1:09 PM CDTHAIL 1.752 Wnw Festus, MORelayed from amateur radio: golf ball sized hail reported.
May 8, 1:09 PM CDTHAIL 1.752 Wnw Festus, MORelayed from amateur radio: golf ball sized hail reported.
May 8, 1:09 PM CDTHAIL 2De Soto, MOTime estimated from radar. Social media photo showed approximately two inch hail.
May 8, 1:10 PM CDTHAIL 1.751 Ene Herculaneum, MOGolf ball sized hail in Herculaneum.
May 8, 1:10 PM CDTHAIL 1.751 Ene Herculaneum, MOGolf ball sized hail in Herculaneum.

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, 10:29 AM CDTTornado WatchSPC8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 5.2 hours before the alert went out and 269 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 2024-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2024-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -112 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1972 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
-112 m²/s²
0-3 km storm-relative helicity
-56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

726 
WFUS53 KLSX 081711
TORLSX
MOC071-099-221-081800-
/O.NEW.KLSX.TO.W.0052.240508T1711Z-240508T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
1211 PM CDT Wed May 8 2024

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Jefferson County in east central Missouri...
  Northeastern Washington County in east central Missouri...
  Southeastern Franklin County in east central Missouri...

* Until 100 PM CDT.

* At 1210 PM CDT, a severe thunderstorm capable of producing a
  tornado was located over Richwoods, moving east at 35 mph.

  HAZARD...Tornado and baseball 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...
  Richwoods around 1215 PM CDT.
  Hillsboro around 1230 PM CDT.

Other locations in the path of this tornadic thunderstorm include De
Soto, Festus, Pevely, Herculaneum, Horine and Crystal City.

This also includes Washington State Park, Mastodon Historic Site,
Sandy Creek Covered Bridge Historic Site, and Gov. Dunklin's Grave
Historic Site.
 
This includes Interstate 55 in Missouri between exits 170 and 187.
 
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 3809 9091 3834 9094 3839 9036 3837 9035
      3834 9037 3830 9037 3824 9036 3819 9034
      3816 9028 3811 9026 3811 9028 3809 9029
      3809 9033 3807 9037
TIME...MOT...LOC 1710Z 264DEG 31KT 3820 9087 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.75 IN

$$

Glass
3 follow-up statements
083 
WWUS53 KLSX 081724
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1224 PM CDT Wed May 8 2024

MOC071-099-221-081800-
/O.CON.KLSX.TO.W.0052.000000T0000Z-240508T1800Z/
Jefferson MO-Washington MO-Franklin MO-
1224 PM CDT Wed May 8 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR
JEFFERSON...NORTHEASTERN WASHINGTON AND SOUTHEASTERN FRANKLIN
COUNTIES...

At 1224 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Richwoods, moving east at 25 mph.

HAZARD...Tornado and baseball 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...
  De Soto, Hillsboro, Festus, Olympian Village and Herculaneum.

This also includes Mastodon Historic Site, Sandy Creek Covered Bridge
Historic Site, and Gov. Dunklin's Grave Historic Site.
 
This includes Interstate 55 in Missouri between exits 170 and 187.
 
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 3809 9085 3834 9094 3839 9036 3837 9035
      3834 9037 3830 9037 3824 9036 3819 9034
      3816 9028 3811 9026 3811 9028 3809 9029
      3809 9033 3807 9037
TIME...MOT...LOC 1724Z 268DEG 21KT 3818 9078 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.75 IN

$$

Glass
017 
WWUS53 KLSX 081737
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1237 PM CDT Wed May 8 2024

MOC071-221-081746-
/O.CAN.KLSX.TO.W.0052.000000T0000Z-240508T1800Z/
Washington MO-Franklin MO-
1237 PM CDT Wed May 8 2024

...THE TORNADO WARNING FOR NORTHEASTERN WASHINGTON AND SOUTHEASTERN
FRANKLIN COUNTIES 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 500 PM CDT for southwestern
Illinois...and southeastern and east central Missouri.

&&

LAT...LON 3809 9066 3810 9065 3809 9068 3810 9068
      3820 9078 3836 9075 3839 9036 3837 9035
      3834 9037 3830 9037 3824 9036 3819 9034
      3816 9028 3811 9026 3811 9028 3809 9029
      3809 9033 3807 9037
TIME...MOT...LOC 1736Z 265DEG 26KT 3818 9066 

$$

MOC099-081800-
/O.CON.KLSX.TO.W.0052.000000T0000Z-240508T1800Z/
Jefferson MO-
1237 PM CDT Wed May 8 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR JEFFERSON
COUNTY...

At 1236 PM CDT, a severe thunderstorm capable of producing a tornado
was located near De Soto, moving east at 30 mph.

HAZARD...Tornado and baseball size hail.

SOURCE...Radar indicated rotation. Baseball size hail was reported 
         just west of Hillsboro.

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...
Festus, De Soto, Pevely, Crystal City, Herculaneum, Hillsboro,
Barnhart, Cedar Hill, Antonia, Olympian Village, Cedar Hill Lakes,
Dittmer, Horine, Imperial, Kimmswick, Hematite, Otto, Victoria, Morse
Mill, and Oermann.

This also includes Mastodon Historic Site, Sandy Creek Covered Bridge
Historic Site, and Gov. Dunklin's Grave Historic Site.
 
This includes Interstate 55 in Missouri between exits 170 and 187.
 
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 3809 9066 3810 9065 3809 9068 3810 9068
      3820 9078 3836 9075 3839 9036 3837 9035
      3834 9037 3830 9037 3824 9036 3819 9034
      3816 9028 3811 9026 3811 9028 3809 9029
      3809 9033 3807 9037
TIME...MOT...LOC 1736Z 265DEG 26KT 3818 9066 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.75 IN

$$

Glass
696 
WWUS53 KLSX 081751
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1251 PM CDT Wed May 8 2024

MOC099-081800-
/O.CON.KLSX.TO.W.0052.000000T0000Z-240508T1800Z/
Jefferson MO-
1251 PM CDT Wed May 8 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR CENTRAL
JEFFERSON COUNTY...

At 1251 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Olympian Village, 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...
Festus, De Soto, Pevely, Crystal City, Herculaneum, Hillsboro,
Barnhart, Cedar Hill, Olympian Village, Cedar Hill Lakes, Horine,
Imperial, Hematite, Victoria, Morse Mill, and Mapaville.

This also includes Sandy Creek Covered Bridge Historic Site and Gov.
Dunklin's Grave Historic Site.
 
This includes Interstate 55 in Missouri between exits 170 and 185.
 
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 3809 9062 3817 9068 3835 9067 3835 9037
      3830 9037 3824 9036 3819 9034 3816 9028
      3811 9026 3811 9028 3809 9029 3809 9033
      3807 9037
TIME...MOT...LOC 1751Z 269DEG 32KT 3814 9051 

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

$$

Glass

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 3:01 AM CDTFlood WatchLSXCole, Crawford, Franklin, Gasconade, Iron, Jefferson and 9 more19 hr
May 8, 9:13 AM CDTSevere Thunderstorm WarningLSXCole, Moniteau47 min
May 8, 9:55 AM CDTSevere Thunderstorm WarningLSXCole, Osage50 min
May 8, 10:25 AM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade, Osage65 min
May 8, 10:49 AM CDTAreal Flood AdvisoryLSXCole, Moniteau, Osage3 hr
May 8, 10:53 AM CDTRiver Flood WarningLSXCole, Osage4 days
May 8, 10:58 AM CDTTornado WarningLSXCrawford, Franklin, Gasconade47 min
May 8, 11:27 AM CDTAreal Flood AdvisoryLSXCrawford, Franklin, Gasconade8 min
May 8, 11:27 AM CDTSevere Thunderstorm Warning Considerable damage threatLSXFranklin, Jefferson48 min
May 8, 11:35 AM CDTFlash Flood WarningLSXCrawford, Franklin, Gasconade3 hr
May 8, 11:35 AM CDTTornado WarningLSXCrawford, Franklin, Washington40 min
May 8, 11:37 AM CDTRiver Flood WarningLSXCole45 hr
May 8, 12:20 PM CDTAreal Flood AdvisoryLSXFranklin, Jefferson, Saint Louis, Washington28 min
May 8, 12:48 PM CDTFlash Flood WarningLSXFranklin, Jefferson, Saint Louis, Washington3 hr
May 8, 12:56 PM CDTTornado WarningLSXJefferson, Sainte Genevieve49 min
May 8, 1:13 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXJefferson, Sainte Genevieve, Saint Francois47 min
May 8, 1:14 PM CDTRiver Flood WarningLSXOsage33 hr
May 8, 1:21 PM CDTRiver Flood WarningLSXCrawford, Washington33 hr
May 8, 1:29 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXSaint Francois, Washington61 min
May 8, 1:36 PM CDTTornado WarningLSXSainte Genevieve, Saint Francois, Washington39 min
May 8, 1:55 PM CDTTornado WarningLSXSainte Genevieve50 min
May 8, 2:00 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve60 min
May 8, 2:27 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois33 min
May 8, 2:44 PM CDTAreal Flood AdvisoryLSXSainte Genevieve, Saint Francois3 hr
May 8, 3:15 PM CDTAreal Flood AdvisoryLSXSainte Genevieve, Saint Francois3 hr
May 8, 4:24 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXCrawford55 min
May 8, 4:35 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Washington40 min
May 8, 4:42 PM CDTRiver Flood WarningLSXJefferson61 hr
May 8, 4:54 PM CDTSevere Thunderstorm WarningLSXWashington51 min
May 8, 5:00 PM CDTSevere Thunderstorm WarningLSXJefferson29 min
May 8, 5:13 PM CDTFlash Flood WarningLSXJefferson4 hr
May 8, 5:30 PM CDTSevere Thunderstorm WarningLSXSaint Francois, Washington45 min
May 8, 5:34 PM CDTSevere Thunderstorm WarningLSXIron, Reynolds41 min
May 8, 5:50 PM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve40 min
May 8, 6:05 PM CDTAreal Flood AdvisoryLSXCrawford, Jefferson, Sainte Genevieve, Saint Francois, Washington3 hr
May 8, 6:08 PM CDTTornado WarningLSXSainte Genevieve52 min
May 8, 6:12 PM CDTSevere Thunderstorm WarningLSXIron, Sainte Genevieve, Saint Francois, Washington63 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.