Alert archive / Illinois / Tornado Warnings in 2024

Tornado Warning 41, NWS St. Louis, MO

April 18, 2024Fayette County, Illinois

NWS St. Louis, MO issued this tornado warning at Apr 18, 2024, 6:41 PM CDT for Fayette County, Illinois. It was in force for 49 min. 3 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
Apr 18, 2024, 6:41 PM CDT (23:41 UTC)
Expired
Apr 18, 2024, 7:30 PM CDT
In force
49 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Fayette County, IL

The radar

The Evansville,IN radar (KVWX), 128 km from the middle of the area, began a volume at 23:44 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
Apr 18, 6:55 PM CDTTSTM WND DMG2 Sw Hagerstown, ILCorrects previous tstm wnd dmg report from 2 SW Hagerstown. Trees downed across Illinois Route 140 at 300 St and just east of Hagerstown. Time estimated from radar.
Apr 18, 6:55 PM CDTTSTM WND DMG2 Sw Hagerstown, ILTrees downed across Illinois Route 140 at 300 St and just east of Hagerstown.
Apr 18, 7:22 PM CDTTSTM WND DMGBrownstown, ILTrees downed in the Brownstown area. 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
Apr 18, 12:56 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.7 hours before the alert went out and 140 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 2024-04-18Temperature 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 2024-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1827 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
269 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

200 
WFUS53 KLSX 182341
TORLSX
ILC051-190030-
/O.NEW.KLSX.TO.W.0041.240418T2341Z-240419T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
641 PM CDT Thu Apr 18 2024

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Fayette County in south central Illinois...

* Until 730 PM CDT.

* At 641 PM CDT, severe thunderstorms capable of producing a tornado
  were located along a line extending from near Coffeen to near
  Woburn to Greenville to Jamestown, moving east at 45 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...
  Vandalia around 655 PM CDT.
  Ramsey and Shobonier around 700 PM CDT.

Other locations in the path of these tornadic storms include
Brownstown, Herrick, St. Elmo and Wrights Corner.

This also includes Ramsey Lake State Park.
 
This includes the following highways...
 Interstate 70 in Illinois between exits 61 and 76.
 Interstate 57 in Illinois near exit 135.

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 3883 8870 3882 8913 3874 8914 3874 8925
      3922 8925 3922 8881 3891 8881 3892 8869
TIME...MOT...LOC 2341Z 248DEG 40KT 3905 8941 3900 8938 3886 8939 3873
8949

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

$$

CVKING
2 follow-up statements
200 
WWUS53 KLSX 190019
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
719 PM CDT Thu Apr 18 2024

ILC051-190030-
/O.CON.KLSX.TO.W.0041.000000T0000Z-240419T0030Z/
Fayette IL-
719 PM CDT Thu Apr 18 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR CENTRAL
FAYETTE COUNTY...

At 719 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from near Herrick to Wrights
Corner to near Brownstown to near Kinmundy, 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.

Locations impacted include...
  St. Elmo and Farina.

This includes the following highways...
 Interstate 70 in Illinois between exits 68 and 76.
 Interstate 57 in Illinois near exit 135.

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 3883 8870 3883 8901 3922 8914 3922 8881
      3891 8881 3892 8869
TIME...MOT...LOC 0019Z 272DEG 30KT 3920 8891 3914 8890 3896 8890 3882
8892

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

$$

CVKING
443 
WWUS53 KLSX 190028
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
728 PM CDT Thu Apr 18 2024

ILC051-190038-
/O.EXP.KLSX.TO.W.0041.000000T0000Z-240419T0030Z/
Fayette IL-
728 PM CDT Thu Apr 18 2024

...THE TORNADO WARNING FOR CENTRAL FAYETTE COUNTY WILL EXPIRE AT 730
PM CDT...

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

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
south central Illinois.

&&

LAT...LON 3883 8870 3883 8901 3922 8914 3922 8881
      3891 8881 3892 8869
TIME...MOT...LOC 0028Z 248DEG 40KT 3923 8880 3917 8879 3899 8879 3885
8881

$$

CVKING

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 3:23 PM CDTSevere Thunderstorm WarningLSXCalhoun, Pike52 min
Apr 18, 3:49 PM CDTTornado WarningLSXPike26 min
Apr 18, 4:03 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXGreene57 min
Apr 18, 4:16 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXCalhoun44 min
Apr 18, 4:25 PM CDTSevere Thunderstorm WarningLSXCalhoun, Greene50 min
Apr 18, 4:40 PM CDTSevere Thunderstorm WarningLSXCalhoun50 min
Apr 18, 4:47 PM CDTSevere Thunderstorm WarningLSXMacoupin58 min
Apr 18, 4:48 PM CDTTornado WarningLSXCalhoun42 min
Apr 18, 4:52 PM CDTSevere Thunderstorm WarningLSXGreene, Jersey38 min
Apr 18, 5:01 PM CDTTornado Warning Tornado observedLSXGreene, Macoupin29 min
Apr 18, 5:07 PM CDTTornado WarningLSXGreene, Jersey23 min
Apr 18, 5:18 PM CDTSevere Thunderstorm WarningLSXJersey, Madison27 min
Apr 18, 5:25 PM CDTSevere Thunderstorm WarningLSXMadison, Saint Clair65 min
Apr 18, 5:26 PM CDTTornado WarningLSXMacoupin34 min
Apr 18, 5:30 PM CDTSevere Thunderstorm WarningLSXGreene, Jersey, Macoupin60 min
Apr 18, 5:34 PM CDTTornado WarningLSXGreene, Jersey, Macoupin26 min
Apr 18, 5:37 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXMonroe53 min
Apr 18, 5:39 PM CDTSevere Thunderstorm WarningLSXMadison, Monroe, Saint Clair66 min
Apr 18, 5:45 PM CDTTornado WarningLSXMacoupin, Montgomery45 min
Apr 18, 5:45 PM CDTTornado WarningLSXMadison45 min
Apr 18, 5:49 PM CDTTornado WarningLSXMonroe, Saint Clair41 min
Apr 18, 5:53 PM CDTAreal Flood AdvisoryLSXGreene, Macoupin2 hr
Apr 18, 5:56 PM CDTTornado WarningLSXMacoupin, Madison49 min
Apr 18, 5:59 PM CDTTornado WarningLSXMacoupin31 min
Apr 18, 6:10 PM CDTTornado WarningLSXBond, Clinton, Madison, Saint Clair, Washington65 min
Apr 18, 6:13 PM CDTSevere Thunderstorm WarningLSXMonroe, Randolph, Saint Clair, Washington77 min
Apr 18, 6:14 PM CDTTornado WarningLSXMontgomery46 min
Apr 18, 6:34 PM CDTTornado WarningLSXMonroe, Randolph41 min

Nearby

Tornado Warnings in Illinois, 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.