Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 14, NWS St. Louis, MO

June 24, 20214 counties in Missouri

NWS St. Louis, MO issued this tornado warning at Jun 24, 2021, 11:40 PM CDT for 4 counties in Missouri. It was in force for 38 min. 7 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
Jun 24, 2021, 11:40 PM CDT (04:40 UTC)
Expired
Jun 25, 2021, 12:18 AM CDT
In force
38 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Marion County, MO, Monroe County, MO, Ralls County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 139 km from the middle of the area, began a volume at 04:41 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
Jun 25, 12:01 AM CDTTORNADO2.5 Ene Rensselaer, MOA BRIEF TORNADO TOUCHED DOWN TO THE NORTHEAST OF RENSESELAER VERY EARLY IN THE MORNING ON JUNE 25TH. THE TORNADO FIRST TOUCHED DOWN ALONG COUNTY ROAD 429. THE TORNADO QUICKLY PUSHED NORTHEAST, DOING DAMAGE TO A FEW SHEDS AT THE INTERSECTION OF COUNTY ROAD 429
Jun 25, 12:07 AM CDTTSTM WND DMG2 S Hannibal, MOSEVERAL TREE BRANCHES AND SOME MINOR ROOF DAMAGE ALONG LILLY ROAD.
Jun 25, 12:08 AM CDTTSTM WND DMG2 Nne Rensselaer, MODRIVER REPORTING TREE DEBRIS ALL OVER HIGHWAY AT HIGHWAY 36 NEAR HIGHWAY H.
Jun 25, 12:08 AM CDTTORNADO3 Nw Hannibal, MOA BRIEF, NARROW TORNADO TOUCHED DOWN IN A RESIDENTIAL SUBDIVISION NORTHWEST OF HANNIBAL, MO EARLY FRIDAY MORNING. THE TORNADO FIRST TOUCHED DOWN ALONG ROSEWOOD DRIVE, WHERE IT RIPPED THE SIDING OFF THE WESTWARD FACING WALL OF A RESIDENTIAL HOME. THE TORNADO TH
Jun 25, 12:09 AM CDTTSTM WND DMG1 Se Hannibal, MOSEVERAL TREES DOWN ALONG LINDELL AVENUE.
Jun 25, 12:11 AM CDTTSTM WND GST 701 E Hannibal, MO60 TO 70 MPH WIND GUSTS IN TOWN. NO DAMAGE SO FAR.
Jun 25, 12:12 AM CDTTSTM WND DMG2 Sse Hannibal, MOLARGE LOCUST TREE FELL ONTO A HOUSE. WALLS ARE BUCKLING UNDER THE WEIGHT OF THE TREE AND BREAKING WINDOWS. ON HIGHWAY O AT SILVERS LANE.

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
Jun 24, 8:57 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.7 hours before the alert went out and 222 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 00:00Z on 2021-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 112 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2021-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.193958Sfc1 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
112 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
817 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
230 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted.

639 
WFUS53 KLSX 250440
TORLSX
MOC127-137-173-205-250530-
/O.NEW.KLSX.TO.W.0014.210625T0440Z-210625T0530Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
1140 PM CDT Thu Jun 24 2021

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northwestern Ralls County in northeastern Missouri...
  Southeastern Marion County in northeastern Missouri...
  East central Shelby County in northeastern Missouri...
  Northeastern Monroe County in northeastern Missouri...

* Until 1230 AM CDT.
    
* At 1140 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near Monroe City, moving east 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 dangerous storm will be near...
  Warren around 1145 PM CDT.
  Monroe City around 1150 PM CDT.
  Rensselaer and Spaulding around 1200 AM CDT.

Other locations in the path of this tornadic thunderstorm include
Palmyra and Hannibal.

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 3988 9145 3984 9144 3983 9141 3977 9136
      3973 9137 3964 9126 3958 9188 3973 9192
      3989 9146
TIME...MOT...LOC 0440Z 260DEG 42KT 3968 9183 

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

$$

CVKING
3 follow-up statements
528 
WWUS53 KLSX 250448
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1148 PM CDT Thu Jun 24 2021

MOC137-205-250458-
/O.CAN.KLSX.TO.W.0014.000000T0000Z-210625T0530Z/
Shelby MO-Monroe MO-
1148 PM CDT Thu Jun 24 2021

...THE TORNADO WARNING FOR EAST CENTRAL SHELBY AND NORTHEASTERN
MONROE COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 400 AM CDT for west central
Illinois...and northeastern Missouri.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
west central Illinois...and northeastern Missouri.

LAT...LON 3988 9145 3984 9144 3983 9141 3977 9136
      3973 9137 3964 9126 3960 9172 3966 9171
      3966 9176 3977 9180 3989 9146
TIME...MOT...LOC 0448Z 250DEG 40KT 3966 9172 

$$

MOC127-173-250530-
/O.CON.KLSX.TO.W.0014.000000T0000Z-210625T0530Z/
Ralls MO-Marion MO-
1148 PM CDT Thu Jun 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR
NORTHWESTERN RALLS AND SOUTHEASTERN MARION COUNTIES...
    
At 1148 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Monroe City, 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.

This dangerous storm will be near...
  Rensselaer and Spaulding around 1200 AM CDT.

Other locations in the path of this tornadic thunderstorm include
Palmyra and Hannibal.

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 3988 9145 3984 9144 3983 9141 3977 9136
      3973 9137 3964 9126 3960 9172 3966 9171
      3966 9176 3977 9180 3989 9146
TIME...MOT...LOC 0448Z 250DEG 40KT 3966 9172 

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

$$

CVKING
425 
WWUS53 KLSX 250512
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1212 AM CDT Fri Jun 25 2021

MOC127-173-250530-
/O.CON.KLSX.TO.W.0014.000000T0000Z-210625T0530Z/
Ralls MO-Marion MO-
1212 AM CDT Fri Jun 25 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR NORTH
CENTRAL RALLS AND EASTERN MARION COUNTIES...
    
At 1211 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Hannibal, moving east 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 tornadic thunderstorm will remain over mainly rural areas of
north central Ralls and eastern Marion Counties, including the
following locations... Ilasco and Saverton.

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 3988 9145 3984 9144 3983 9141 3977 9136
      3973 9137 3964 9126 3963 9141 3985 9157
      3989 9146
TIME...MOT...LOC 0511Z 260DEG 42KT 3971 9136 

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

$$

CVKING
653 
WWUS53 KLSX 250518
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1218 AM CDT Fri Jun 25 2021

MOC127-173-250528-
/O.CAN.KLSX.TO.W.0014.000000T0000Z-210625T0530Z/
Ralls MO-Marion MO-
1218 AM CDT Fri Jun 25 2021

...THE TORNADO WARNING FOR NORTH CENTRAL RALLS AND EASTERN MARION
COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 400 AM CDT for west central
Illinois...and northeastern Missouri.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
northeastern Missouri.

LAT...LON 3988 9145 3984 9144 3983 9141 3977 9136
      3973 9137 3964 9126 3963 9141 3985 9157
      3989 9146
TIME...MOT...LOC 0517Z 260DEG 42KT 3972 9125 

$$

CVKING

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 10:57 PM CDTSevere Thunderstorm WarningLSXMonroe, Shelby48 min
Jun 24, 11:03 PM CDTTornado WarningLSXMonroe, Shelby42 min
Jun 24, 11:29 PM CDTSevere Thunderstorm WarningLSXAudrain, Lewis, Marion, Monroe, Pike, Ralls and 1 more46 min
Jun 24, 11:32 PM CDTTornado WarningLSXLewis28 min
Jun 24, 11:35 PM CDTTornado WarningLSXAudrain, Monroe, Ralls40 min
Jun 25, 12:09 AM CDTTornado WarningLSXAudrain, Pike, Ralls51 min
Jun 25, 12:17 AM CDTSevere Thunderstorm WarningLSXAudrain, Lincoln, Montgomery, Pike, Ralls43 min
Jun 25, 12:57 AM CDTSevere Thunderstorm WarningLSXLincoln, Pike48 min
Jun 25, 1:27 AM CDTRiver Flood WarningLSXBoone33 hr
Jun 25, 1:54 AM CDTAreal Flood AdvisoryLSXMontgomery3 hr
Jun 25, 2:21 AM CDTAreal Flood AdvisoryLSXAudrain, Boone, Callaway106 min
Jun 25, 3:07 AM CDTAreal Flood AdvisoryLSXBoone, Callaway, Cole, Moniteau82 min
Jun 25, 3:34 AM CDTFlash Flood WarningLSXBoone6 hr
Jun 25, 4:04 AM CDTFlash Flood WarningLSXAudrain, Boone, Callaway6 hr
Jun 25, 4:26 AM CDTFlash Flood WarningLSXBoone, Callaway, Cole, Moniteau6 hr
Jun 25, 4:28 AM CDTFlash Flood WarningLSXCallaway, Lincoln, Montgomery, Osage, Warren6 hr
Jun 25, 7:48 AM CDTRiver Flood WarningLSXLincoln62 hr
Jun 25, 8:25 AM CDTAreal Flood WarningLSXAudrain, Boone, Callaway, Cole, Moniteau9 hr
Jun 25, 10:06 AM CDTRiver Flood WarningLSXFranklin, Warren9 days
Jun 25, 10:06 AM CDTRiver Flood WarningLSXSaint Charles, Saint Louis21 days
Jun 25, 10:06 AM CDTRiver Flood WarningLSXBoone, Callaway, Cole, Moniteau8 days
Jun 25, 10:06 AM CDTRiver Flood WarningLSXCallaway, Osage21 days
Jun 25, 10:06 AM CDTRiver Flood WarningLSXGasconade, Montgomery10 days
Jun 25, 4:59 PM CDTSevere Thunderstorm WarningLSXCallaway, Osage20 min
Jun 25, 5:01 PM CDTSevere Thunderstorm WarningLSXBoone, Moniteau44 min
Jun 25, 5:05 PM CDTRiver Flood WarningLSXCole, Osage9 days
Jun 25, 5:42 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway22 min
Jun 25, 6:07 PM CDTRiver Flood WarningLSXLincoln3 days
Jun 25, 6:36 PM CDTSevere Thunderstorm WarningLSXLincoln, Saint Charles, Warren39 min
Jun 25, 6:43 PM CDTFlash Flood WarningLSXAudrain, Boone, Callaway6 hr
Jun 25, 6:48 PM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery, Warren42 min
Jun 25, 6:55 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway19 min

Nearby

Tornado Warnings in Missouri, 2021Every tornado warning in 2021Tornadoes in 2021

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.