Alert archive / Illinois / Tornado Warnings in 2025

Tornado Warning 32, NWS St. Louis, MO

April 2, 2025Marion County, Illinois

NWS St. Louis, MO issued this tornado warning at Apr 2, 2025, 6:15 PM CDT for Marion County, Illinois. It was in force for 15 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
Apr 2, 2025, 6:15 PM CDT (23:15 UTC)
Expired
Apr 2, 2025, 6:30 PM CDT
In force
15 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Marion County, IL

The radar

The Evansville,IN radar (KVWX), 100 km from the middle of the area, began a volume at 23:14 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
Apr 2, 4:19 PM CDTTornado WatchSPC3 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.3 hours before the alert went out and 167 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 2025-04-02Temperature 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 2025-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 948 square meters per square second.1939587897Sfc1 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
864 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
948 m²/s²
0-3 km storm-relative helicity
1028 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted.

600 
WFUS53 KLSX 022315
TORLSX
ILC121-022330-
/O.NEW.KLSX.TO.W.0032.250402T2315Z-250402T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
615 PM CDT Wed Apr 2 2025

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Eastern Marion County in south central Illinois...

* Until 630 PM CDT.

* At 615 PM CDT, a severe thunderstorm capable of producing a 
  tornado was located 6 miles north of Helm, or 11 miles east of 
  Salem, 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 tornado will be near...
  Helm and Omega around 615 PM CDT.
  Stephen Forbes Station around 620 PM CDT.

Other locations impacted by the tornado include Iuka.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built 
building away from 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 3848 8870 3848 8890 3880 8878 3883 8875
      3883 8870
TIME...MOT...LOC 2315Z 237DEG 43KT 3861 8874

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

$$

19
1 follow-up statement
528 
WWUS53 KLSX 022329
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
629 PM CDT Wed Apr 2 2025

ILC121-022339-
/O.EXP.KLSX.TO.W.0032.000000T0000Z-250402T2330Z/
Marion IL-
629 PM CDT Wed Apr 2 2025

...TORNADO WARNING WILL EXPIRE AT 630 PM CDT FOR EASTERN MARION 
COUNTY IN SOUTH CENTRAL ILLINOIS...

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

A Tornado Watch remains in effect until 700 PM CDT for a portion of 
south central Illinois.

&&

LAT...LON 3848 8870 3848 8890 3880 8878 3883 8875
      3883 8870
TIME...MOT...LOC 2315Z 237DEG 43KT 3861 8874

$$

19

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 8:27 AM CDTSevere Thunderstorm WarningLSXAdams, Pike48 min
Apr 2, 9:09 AM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Pike51 min
Apr 2, 10:27 AM CDTRiver Flood WarningLSXClinton40 days
Apr 2, 3:46 PM CDTSevere Thunderstorm WarningLSXMacoupin13 min
Apr 2, 3:55 PM CDTTornado WarningLSXMonroe, Saint Clair50 min
Apr 2, 4:30 PM CDTSevere Thunderstorm WarningLSXMonroe, Randolph30 min
Apr 2, 4:38 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Madison, Saint Clair52 min
Apr 2, 5:00 PM CDTSevere Thunderstorm WarningLSXRandolph, Saint Clair, Washington36 min
Apr 2, 5:11 PM CDTSevere Thunderstorm WarningLSXBond, Fayette, Montgomery64 min
Apr 2, 5:16 PM CDTTornado Warning Tornado observedLSXBond, Fayette, Montgomery44 min
Apr 2, 5:25 PM CDTSevere Thunderstorm WarningLSXClinton, Fayette, Marion, Washington50 min
Apr 2, 5:28 PM CDTTornado WarningLSXClinton, Marion, Washington47 min
Apr 2, 5:38 PM CDTTornado WarningLSXFayette34 min
Apr 2, 5:56 PM CDTTornado WarningLSXFayette10 min
Apr 2, 6:19 PM CDTTornado WarningLSXRandolph30 min
Apr 2, 6:28 PM CDTTornado WarningLSXWashington15 min
Apr 2, 6:48 PM CDTTornado WarningLSXMarion24 min

Nearby

Tornado Warnings in Illinois, 2025Every tornado warning in 2025Tornadoes in 2025

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.