Alert archive / Illinois / Tornado Warnings in 2024

Tornado Warning 53, NWS St. Louis, MO

May 8, 2024Monroe County, Randolph County, Illinois; Jefferson County, Sainte Genevieve County, Missouri

NWS St. Louis, MO issued this tornado warning at May 8, 2024, 12:56 PM CDT for Monroe County, Randolph County, Illinois; Jefferson County, Sainte Genevieve County, Missouri. It was in force for 49 min. 23 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, 12:56 PM CDT (17:56 UTC)
Expired: May 8, 2024, 1:45 PM CDT
In force: 49 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.5 in

Counties Monroe County, IL, Randolph County, IL, Jefferson County, MO, Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 66 km from the middle of the area, began a volume at 18:00 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

Time	Report	Where	Remark
May 8, 1:02 PM CDT	HAIL 1.25	2 N Olympian Village, MO	Half dollar sized hail 3 SE Hematite. Time estimated from radar.
May 8, 1:02 PM CDT	HAIL 1.25	2 N Olympian Village, MO	Half dollar sized hail 3 SE Hematite. Time estimated from radar.
May 8, 1:02 PM CDT	HAIL 1.75	1 Nne Hematite, MO	Up to golf ball sized hail measured.
May 8, 1:09 PM CDT	HAIL 1.75	2 Wnw Festus, MO	Relayed from amateur radio: golf ball sized hail reported.
May 8, 1:09 PM CDT	HAIL 1.75	2 Wnw Festus, MO	Relayed from amateur radio: golf ball sized hail reported.
May 8, 1:10 PM CDT	HAIL 1.75	1 Ene Herculaneum, MO	Golf ball sized hail in Herculaneum.
May 8, 1:10 PM CDT	HAIL 1.75	1 Ene Herculaneum, MO	Golf ball sized hail in Herculaneum.
May 8, 1:11 PM CDT	HAIL 2.25	1 N Festus, MO	Report from mPING: Hen Egg+ (2.25 in.) Time estimated from radar.
May 8, 1:11 PM CDT	HAIL 2.5	Festus, MO	Reports of golf ball to tennis ball sized hail in festus.
May 8, 1:13 PM CDT	HAIL 1	Herculaneum, MO	Nickel to quarter sized hail.
May 8, 1:13 PM CDT	HAIL 1	Herculaneum, MO	Nickel to quarter sized hail.
May 8, 1:14 PM CDT	HAIL 1.25	1 E Herculaneum, MO	public report of quarter to half dollar sized hail.
May 8, 1:14 PM CDT	HAIL 1.75	1 Ene Herculaneum, MO	Via Facebook: Golf ball sized hail estimated from picture.
May 8, 1:14 PM CDT	HAIL 2.5	Festus, MO	Size estimated against a quarter.
May 8, 1:14 PM CDT	HAIL 2.5	Fults, IL	Estimated from picture. golf ball to tennis ball sized hail in festus.
May 8, 1:15 PM CDT	HAIL 1.75	1 Ese Hematite, MO	Multiple reports of ping pong to golf ball sized hail from media, emergency manager, and fire department.
May 8, 1:15 PM CDT	HAIL 1.75	1 Ese Hematite, MO	Multiple reports of ping pong to golf ball sized hail from media, emergency manager, and fire department.
May 8, 1:16 PM CDT	HAIL 1.5	Crystal City, MO	Social media photo of ping pong ball sized hail.
May 8, 1:18 PM CDT	TSTM WND DMG	4 E Olympian Village, MO	1ft tree limb down in yard. Time estimated by radar.
May 8, 1:18 PM CDT	HAIL 1.5	1 N Herculaneum, MO	Social media photo of ping pong ball sized hail in Horine, MO. Time estimated from radar.
May 8, 1:19 PM CDT	TSTM WND DMG	Festus, MO	Large tree uprooted in Festus. Roots snap just below surface.
May 8, 1:22 PM CDT	HAIL 1.75	3 S Harrisonville, IL	golf ball sized hail south of valmeyer.
May 8, 1:25 PM CDT	HAIL 2.5	1 E Herculaneum, MO	Measured 2 to 2.5 inch hailstones.

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.

Issued	Product	Office	Lasted
May 8, 10:29 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 5.9 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

383 
WFUS53 KLSX 081756
TORLSX
ILC133-157-MOC099-186-081845-
/O.NEW.KLSX.TO.W.0053.240508T1756Z-240508T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
1256 PM CDT Wed May 8 2024

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Monroe County in southwestern Illinois...
  Northwestern Randolph County in southwestern Illinois...
  Southeastern Jefferson County in east central Missouri...
  North central Ste. Genevieve County in southeastern Missouri...

* Until 145 PM CDT.

* At 1256 PM CDT, a severe thunderstorm capable of producing a
  tornado was located over Olympian Village, moving east at 35 mph.

  HAZARD...Tornado and tennis 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...
  Crystal City and Olympian Village around 100 PM CDT.

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 180.
 
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 3808 9051 3832 9055 3836 9009 3832 9004
      3831 9004 3831 9003 3806 9004
TIME...MOT...LOC 1756Z 265DEG 30KT 3813 9046 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.50 IN

$$

Glass

3 follow-up statements

013 
WWUS53 KLSX 081811
SVSLSX

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

ILC133-157-MOC099-186-081845-
/O.CON.KLSX.TO.W.0053.000000T0000Z-240508T1845Z/
Monroe IL-Randolph IL-Jefferson MO-Ste. Genevieve MO-
111 PM CDT Wed May 8 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR MONROE...
NORTHWESTERN RANDOLPH...SOUTHEASTERN JEFFERSON AND NORTH CENTRAL STE.
GENEVIEVE COUNTIES...

At 110 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Olympian Village, moving east at 30 mph.

HAZARD...Tornado and tennis ball size hail. Several reports of up to 
         golf ball hail near Festus.

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 tornadic thunderstorm will remain over mainly rural areas of
Monroe, northwestern Randolph, southeastern Jefferson and north
central Ste. Genevieve Counties, including the following locations...
Hematite, Renault, Ames, Victoria, Madonnaville, Chalfin Bridge,
Wartburg, Fults, Burksville, and Monroe City.

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 180.
 
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 3808 9051 3832 9055 3836 9009 3832 9004
      3831 9004 3831 9003 3806 9004
TIME...MOT...LOC 1810Z 264DEG 26KT 3814 9035 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.50 IN

$$

Glass

328 
WWUS53 KLSX 081822
SVSLSX

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

ILC133-157-MOC099-186-081845-
/O.CON.KLSX.TO.W.0053.000000T0000Z-240508T1845Z/
Monroe IL-Randolph IL-Jefferson MO-Ste. Genevieve MO-
122 PM CDT Wed May 8 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR MONROE...
NORTHWESTERN RANDOLPH...SOUTHEASTERN JEFFERSON AND NORTH CENTRAL STE.
GENEVIEVE COUNTIES...

At 121 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southeast of Crystal City, moving east at 30 mph.

HAZARD...Tornado and tennis ball size hail.

SOURCE...Radar indicated rotation. Numerous reports of hail up to 2 
         inches in and around Festus.

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, Waterloo, Pevely, Crystal City, Herculaneum, Barnhart,
Valmeyer, Olympian Village, Horine, New Design, Prairie Du Rocher,
Maeystown, Fults, Hematite, Renault, Ames, Madonnaville, Chalfin
Bridge, Wartburg, and Burksville.

This also includes Gov. Dunklin's Grave Historic Site.
 
This includes Interstate 55 in Missouri between exits 170 and 180.
 
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 3808 9051 3832 9046 3836 9009 3832 9004
      3831 9004 3831 9003 3806 9004
TIME...MOT...LOC 1821Z 261DEG 27KT 3816 9026 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.50 IN

$$

Glass

337 
WWUS53 KLSX 081833
SVSLSX

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

ILC133-157-MOC099-186-081845-
/O.CON.KLSX.TO.W.0053.000000T0000Z-240508T1845Z/
Monroe IL-Randolph IL-Jefferson MO-Ste. Genevieve MO-
133 PM CDT Wed May 8 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR MONROE...
NORTHWESTERN RANDOLPH...SOUTHEASTERN JEFFERSON AND NORTH CENTRAL STE.
GENEVIEVE COUNTIES...

At 133 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southwest of New Design, moving east at 25 mph.

HAZARD...Tornado and two inch 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...
Waterloo, Crystal City, Herculaneum, Valmeyer, New Design, Prairie Du
Rocher, Maeystown, Fults, Renault, Ames, Madonnaville, Chalfin
Bridge, Wartburg, Burksville, Monroe City, Foster Pond,
Harrisonville, and Kidd.

This includes Interstate 55 in Missouri near exit 170.
 
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 3807 9038 3833 9037 3836 9009 3832 9004
      3831 9004 3831 9003 3806 9004
TIME...MOT...LOC 1833Z 259DEG 23KT 3817 9020 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

$$

Glass

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 3:01 AM CDT	Flood Watch	LSX	Monroe, Randolph, Saint Clair	19 hr
May 8, 1:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Monroe, Randolph	47 min
May 8, 1:42 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph, Saint Clair	35 min
May 8, 1:55 PM CDT	Tornado Warning	LSX	Randolph	50 min
May 8, 2:41 PM CDT	Areal Flood Advisory	LSX	Monroe	3 hr
May 8, 2:44 PM CDT	Areal Flood Advisory	LSX	Randolph	3 hr
May 8, 2:44 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Randolph	18 min
May 8, 3:15 PM CDT	Areal Flood Advisory	LSX	Randolph	3 hr
May 8, 4:48 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Saint Clair	42 min
May 8, 5:00 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	29 min
May 8, 5:28 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Madison, Montgomery, Saint Clair	47 min
May 8, 5:38 PM CDT	Areal Flood Advisory	LSX	Monroe, Saint Clair	3 hr
May 8, 5:50 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	40 min
May 8, 6:08 PM CDT	Tornado Warning	LSX	Monroe, Randolph	52 min
May 8, 6:29 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Saint Clair, Washington	46 min
May 8, 9:13 AM CDT	Severe Thunderstorm Warning	LSX	Cole, Moniteau	47 min
May 8, 9:55 AM CDT	Severe Thunderstorm Warning	LSX	Cole, Osage	50 min
May 8, 10:25 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade, Osage	65 min
May 8, 10:49 AM CDT	Areal Flood Advisory	LSX	Cole, Moniteau, Osage	3 hr
May 8, 10:53 AM CDT	River Flood Warning	LSX	Cole, Osage	4 days
May 8, 10:58 AM CDT	Tornado Warning	LSX	Crawford, Franklin, Gasconade	47 min
May 8, 11:27 AM CDT	Areal Flood Advisory	LSX	Crawford, Franklin, Gasconade	8 min
May 8, 11:27 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Franklin, Jefferson	48 min
May 8, 11:35 AM CDT	Flash Flood Warning	LSX	Crawford, Franklin, Gasconade	3 hr
May 8, 11:35 AM CDT	Tornado Warning	LSX	Crawford, Franklin, Washington	40 min
May 8, 11:37 AM CDT	River Flood Warning	LSX	Cole	45 hr
May 8, 12:11 PM CDT	Tornado Warning	LSX	Franklin, Jefferson, Washington	49 min
May 8, 12:20 PM CDT	Areal Flood Advisory	LSX	Franklin, Jefferson, Saint Louis, Washington	28 min
May 8, 12:48 PM CDT	Flash Flood Warning	LSX	Franklin, Jefferson, Saint Louis, Washington	3 hr
May 8, 1:14 PM CDT	River Flood Warning	LSX	Osage	33 hr
May 8, 1:21 PM CDT	River Flood Warning	LSX	Crawford, Washington	33 hr
May 8, 1:29 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Saint Francois, Washington	61 min
May 8, 1:36 PM CDT	Tornado Warning	LSX	Sainte Genevieve, Saint Francois, Washington	39 min
May 8, 2:00 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve	60 min
May 8, 2:27 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	33 min
May 8, 4:24 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Crawford	55 min
May 8, 4:35 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Washington	40 min
May 8, 4:42 PM CDT	River Flood Warning	LSX	Jefferson	61 hr
May 8, 4:54 PM CDT	Severe Thunderstorm Warning	LSX	Washington	51 min
May 8, 5:13 PM CDT	Flash Flood Warning	LSX	Jefferson	4 hr
May 8, 5:30 PM CDT	Severe Thunderstorm Warning	LSX	Saint Francois, Washington	45 min
May 8, 5:34 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	41 min
May 8, 6:05 PM CDT	Areal Flood Advisory	LSX	Crawford, Jefferson, Sainte Genevieve, Saint Francois, Washington	3 hr
May 8, 6:12 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Sainte Genevieve, Saint Francois, Washington	63 min

Nearby

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