Alert archive / Missouri / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 113, NWS St. Louis, MO

April 30, 2025Lincoln County, Saint Charles County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 30, 2025, 5:44 PM CDT for Lincoln County, Saint Charles County, Missouri. It was in force for 22 min. 1 report 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 30, 2025, 5:44 PM CDT (22:44 UTC)
Expired: Apr 30, 2025, 6:06 PM CDT
In force: 22 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lincoln County, MO, Saint Charles County, MO

The radar

The St Louis radar (KLSX), 24 km from the middle of the area, began a volume at 22:44 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

Time	Report	Where	Remark
Apr 30, 5:46 PM CDT	HAIL 1	1 W O'Fallon, MO

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
Apr 30, 4:40 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.7 hours before the alert went out and 228 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: 1539 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 99 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

549 
WUUS53 KLSX 302244
SVRLSX
MOC113-183-302330-
/O.NEW.KLSX.SV.W.0113.250430T2244Z-250430T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
544 PM CDT Wed Apr 30 2025

The National Weather Service in St Louis has issued a

* Severe Thunderstorm Warning for...
  Southeastern Lincoln County in east central Missouri...
  Northwestern Saint Charles County in east central Missouri...

* Until 630 PM CDT.

* At 544 PM CDT, a severe thunderstorm was located over Lake St. 
  Louis, or over Dardenne Prairie, moving north at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind
           damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Dardenne Prairie, Cottleville, Weldon Spring and Weldon Spring 
  Heights around 545 PM CDT.
  O'Fallon, Lake St. Louis, Wentzville and St. Peters around 550 PM 
  CDT.

Other locations impacted by the severe thunderstorm include Flint 
Hill and Old Monroe.

This includes Interstate 70 in Missouri between exits 209 and 220.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from 
windows. This storm is capable of producing damaging winds and large 
hail.

A Tornado Watch remains in effect until 1000 PM CDT for a portion of 
east central Missouri.

&&

LAT...LON 3900 9093 3901 9069 3899 9068 3896 9068
      3895 9067 3893 9066 3891 9064 3889 9063
      3870 9064 3869 9084
TIME...MOT...LOC 2244Z 178DEG 27KT 3876 9076

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Jaja

2 follow-up statements

387 
WWUS53 KLSX 302257
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
557 PM CDT Wed Apr 30 2025

MOC113-183-302330-
/O.CON.KLSX.SV.W.0113.000000T0000Z-250430T2330Z/
Lincoln MO-Saint Charles MO-
557 PM CDT Wed Apr 30 2025

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT 
FOR SOUTHEASTERN LINCOLN AND NORTHWESTERN SAINT CHARLES COUNTIES...

At 557 PM CDT, a severe thunderstorm was located over St. Paul, 
moving north at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage
         to roofs, siding, and trees.

This severe thunderstorm will be near...
  O'Fallon, Lake St. Louis, Wentzville and St. Peters around 550 PM 
  CDT.

Other locations impacted by the severe thunderstorm include Flint 
Hill and Old Monroe.

This includes Interstate 70 in Missouri between exits 210 and 220.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from 
windows. This storm is capable of producing damaging winds and large 
hail.

A Tornado Watch remains in effect until 1000 PM CDT for a portion of 
east central Missouri.

&&

LAT...LON 3889 9088 3900 9093 3901 9069 3899 9068
      3896 9068 3895 9067 3893 9066 3891 9064
      3889 9063 3880 9064 3878 9083
TIME...MOT...LOC 2244Z 178DEG 27KT 3876 9076

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Jaja

631 
WWUS53 KLSX 302306
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
606 PM CDT Wed Apr 30 2025

MOC113-183-302316-
/O.CAN.KLSX.SV.W.0113.000000T0000Z-250430T2330Z/
Lincoln MO-Saint Charles MO-
606 PM CDT Wed Apr 30 2025

...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHEASTERN LINCOLN 
AND NORTHWESTERN SAINT CHARLES COUNTIES...

The storm which prompted the warning has weakened below severe 
limits, and no longer poses an immediate threat to life or property. 
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for a portion of 
east central Missouri.

&&

LAT...LON 3889 9088 3900 9093 3901 9069 3899 9068
      3896 9068 3895 9067 3893 9066 3891 9064
      3889 9063 3880 9064 3878 9083
TIME...MOT...LOC 2257Z 178DEG 27KT 3886 9077

$$

Jaja

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 11:37 AM CDT	River Flood Warning	LSX	Crawford, Washington	33 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2025 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.