Alert archive / Missouri / Tornado Warnings in 2025

Tornado Warning 41, NWS St. Louis, MO

April 20, 2025Audrain County, Boone County, Callaway County, Missouri

NWS St. Louis, MO issued this tornado warning at Apr 20, 2025, 5:25 PM CDT for Audrain County, Boone County, Callaway County, Missouri. It was in force for 39 min. 2 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 20, 2025, 5:25 PM CDT (22:25 UTC)
Expired
Apr 20, 2025, 6:04 PM CDT
In force
39 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Audrain County, MO, Boone County, MO, Callaway County, MO

The radar

The St Louis radar (KLSX), 120 km from the middle of the area, began a volume at 22:24 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 20, 5:31 PM CDTTSTM WND DMG4 Wnw Kingdom City, MOThe NWS surveyed straight line wind damage at a farm north-northwest of Kingdom City. Photos provided by county law enforcement show extensive damage to multiple farm outbuildings. Large, healthy tree branches were also snapped on the property.
Apr 20, 5:56 PM CDTTORNADO5 S Santa Fe, MOA brief EF-1 tornado tracked south to north just west of Highway MM in north-central Audrain County, destroying a couple of outbuildings and rolling two smaller grain bins at a farm. Debris was generally thrown northward and strewn widely, likely due to a down

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 20, 12:03 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.4 hours before the alert went out and 306 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, Davenport, at 12:00Z on 2025-04-20Temperature 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, Davenport, at 12:00Z on 2025-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 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
1408 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

121 
WFUS53 KLSX 202225
TORLSX
MOC007-019-027-202315-
/O.NEW.KLSX.TO.W.0041.250420T2225Z-250420T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
525 PM CDT Sun Apr 20 2025

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Central Audrain County in central Missouri...
  East Central Boone County in central Missouri...
  Northwestern Callaway County in central Missouri...

* Until 615 PM CDT.

* At 525 PM CDT, a severe thunderstorm capable of producing a 
  tornado was located near Murry, or 11 miles east of Columbia, 
  moving northeast at 55 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...
  Murry around 525 PM CDT.

Other locations impacted by the tornado include Hatton, Thompson and 
Vandiver.

This includes Interstate 70 in Missouri between exits 133 and 144.

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 3890 9217 3895 9223 3934 9205 3934 9172
      3932 9172 3932 9164 3881 9206
TIME...MOT...LOC 2225Z 215DEG 48KT 3900 9215

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

$$

19
3 follow-up statements
952 
WWUS53 KLSX 202239
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
539 PM CDT Sun Apr 20 2025

MOC019-027-202249-
/O.CAN.KLSX.TO.W.0041.000000T0000Z-250420T2315Z/
Boone MO-Callaway MO-
539 PM CDT Sun Apr 20 2025

...TORNADO WARNING IS CANCELLED FOR EAST CENTRAL BOONE AND 
NORTHWESTERN CALLAWAY COUNTIES...

The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, large hail and damaging winds remain likely and 
a Severe Thunderstorm Warning remains in effect for the area.

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

&&

LAT...LON 3934 9205 3934 9172 3932 9172 3932 9164
      3906 9185 3906 9211 3922 9211
TIME...MOT...LOC 2225Z 215DEG 48KT 3901 9214

$$


MOC007-202315-
/O.CON.KLSX.TO.W.0041.000000T0000Z-250420T2315Z/
Audrain MO-
539 PM CDT Sun Apr 20 2025

...TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR CENTRAL 
AUDRAIN COUNTY...

At 539 PM CDT, a severe thunderstorm capable of producing a tornado 
was located over Mexico, moving northeast at 80 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...
  Mexico around 540 PM CDT.

Other locations impacted by the tornado include Vandiver, Thompson 
and Rush Hill.

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 3934 9205 3934 9172 3932 9172 3932 9164
      3906 9185 3906 9211 3922 9211
TIME...MOT...LOC 2225Z 216DEG 69KT 3893 9211

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

$$

19
153 
WWUS53 KLSX 202245
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
545 PM CDT Sun Apr 20 2025

MOC007-202315-
/O.CON.KLSX.TO.W.0041.000000T0000Z-250420T2315Z/
Audrain MO-
545 PM CDT Sun Apr 20 2025

...TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR CENTRAL 
AUDRAIN COUNTY...

At 545 PM CDT, a severe thunderstorm capable of producing a tornado 
was located over Mexico, moving northeast at 70 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.

Other locations impacted by the tornado include Thompson, Vandiver 
and Rush Hill.

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 3932 9172 3932 9164 3906 9185 3914 9197
      3922 9211 3923 9211 3934 9205 3934 9172
TIME...MOT...LOC 2239Z 221DEG 61KT 3909 9191

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

$$

19
418 
WWUS53 KLSX 202304
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
604 PM CDT Sun Apr 20 2025

MOC007-202314-
/O.CAN.KLSX.TO.W.0041.000000T0000Z-250420T2315Z/
Audrain MO-
604 PM CDT Sun Apr 20 2025

...TORNADO WARNING IS CANCELLED FOR CENTRAL AUDRAIN COUNTY...

The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, large hail and damaging winds remain likely and 
a Severe Thunderstorm Warning remains in effect for the area.

&&

LAT...LON 3932 9172 3932 9164 3906 9185 3914 9197
      3922 9211 3923 9211 3934 9205 3934 9172
TIME...MOT...LOC 2245Z 221DEG 61KT 3917 9182

$$

19

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 8:23 PM CDTRiver Flood WarningLSXReynolds60 hr
Apr 19, 8:28 PM CDTRiver Flood WarningLSXCrawford, Washington61 hr
Apr 19, 8:28 PM CDTRiver Flood WarningLSXCrawford20 hr
Apr 20, 6:13 AM CDTSevere Thunderstorm WarningLSXBoone, Callaway, Cole, Osage31 min
Apr 20, 6:53 AM CDTRiver Flood WarningLSXJefferson61 hr
Apr 20, 7:57 AM CDTRiver Flood WarningLSXOsage57 hr
Apr 20, 7:57 AM CDTRiver Flood WarningLSXCole49 hr
Apr 20, 8:28 AM CDTRiver Flood WarningLSXBoone23 hr
Apr 20, 10:37 AM CDTRiver Flood WarningLSXFranklin47 hr
Apr 20, 12:38 PM CDTTornado WarningLSXCole, Moniteau43 min
Apr 20, 1:31 PM CDTTornado WarningLSXCallaway44 min
Apr 20, 4:18 PM CDTSevere Thunderstorm WarningLSXCole, Moniteau57 min
Apr 20, 4:32 PM CDTTornado WarningLSXMoniteau37 min
Apr 20, 4:51 PM CDTSevere Thunderstorm WarningLSXBoone, Callaway54 min
Apr 20, 4:54 PM CDTSevere Thunderstorm WarningLSXOsage66 min
Apr 20, 5:01 PM CDTTornado WarningLSXBoone, Moniteau35 min
Apr 20, 5:13 PM CDTSevere Thunderstorm WarningLSXCole17 min
Apr 20, 5:30 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXAudrain, Boone, Callaway, Monroe, Montgomery, Ralls45 min
Apr 20, 5:34 PM CDTSevere Thunderstorm WarningLSXAudrain, Monroe, Shelby41 min
Apr 20, 5:44 PM CDTTornado WarningLSXCallaway, Montgomery46 min
Apr 20, 5:46 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXFranklin, Gasconade, Warren44 min
Apr 20, 6:03 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXPike, Ralls42 min
Apr 20, 6:07 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXCrawford, Franklin, Gasconade, Iron, Reynolds, Washington53 min
Apr 20, 6:07 PM CDTTornado WarningLSXLincoln, Pike38 min
Apr 20, 6:11 PM CDTTornado WarningLSXPike, Ralls49 min
Apr 20, 6:15 PM CDTSevere Thunderstorm WarningLSXLewis, Marion60 min
Apr 20, 6:20 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXFranklin, Lincoln, Montgomery, Saint Charles, Saint Louis, Warren40 min
Apr 20, 6:40 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXPike20 min
Apr 20, 6:56 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Lincoln, Saint Charles, Saint Louis, Warren and 1 more64 min
Apr 20, 6:58 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Iron, Jefferson, Madison, Reynolds and 4 more62 min

Nearby

Tornado Warnings in Missouri, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.