Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 19, NWS Kansas City, MO

October 24, 2021Buchanan County, Clinton County, DeKalb County, Missouri

NWS Kansas City, MO issued this tornado warning at Oct 24, 2021, 2:51 PM CDT for Buchanan County, Clinton County, DeKalb County, Missouri. It was in force for 24 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
Oct 24, 2021, 2:51 PM CDT (19:51 UTC)
Expired
Oct 24, 2021, 3:15 PM CDT
In force
24 min
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Buchanan County, MO, Clinton County, MO, DeKalb County, MO

The radar

The Pleasant Hill radar (KEAX), 100 km from the middle of the area, began a volume at 19:50 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
Oct 24, 2:06 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 7.9 hours before the alert went out and 131 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, Topeka, KS at 12:00Z on 2021-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1036 joules per kilogram.LCLLFCEL10008507005003002001001 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, Topeka, KS at 12:00Z on 2021-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 368 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
1036 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1015 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
368 m²/s²
0-3 km storm-relative helicity
374 m²/s²
Significant tornado parameter
0.0
Supercell composite
7.7

Open this sounding in Storm Lab

The text

As transmitted.

373 
WFUS53 KEAX 241951
TOREAX
MOC021-049-063-242015-
/O.NEW.KEAX.TO.W.0019.211024T1951Z-211024T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Kansas City/Pleasant Hill MO
251 PM CDT Sun Oct 24 2021

The National Weather Service in Pleasant Hill has issued a

* Tornado Warning for...
  Southeastern Buchanan County in northwestern Missouri...
  Clinton County in northwestern Missouri...
  Southeastern DeKalb County in northwestern Missouri...

* Until 315 PM CDT.
    
* At 250 PM CDT, a severe thunderstorm capable of producing a 
  tornado was located over Gower, moving northeast at 35 mph. 
  Another circulation was south of Cosby also moving northeast at 35 
  mph.

  HAZARD...Tornado and quarter size hail.

  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...
  Cameron, Plattsburg, Lathrop, Gower, Stewartsville, Osborn and
  Turney.

This includes Interstate 35 in Missouri between mile markers 39 and
55.
 
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 3990 9421 3954 9421 3953 9470 3964 9474
TIME...MOT...LOC 1950Z 240DEG 31KT 3959 9461 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

CDB
2 follow-up statements
469 
WWUS53 KEAX 241954
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
254 PM CDT Sun Oct 24 2021

MOC021-242003-
/O.CAN.KEAX.TO.W.0019.000000T0000Z-211024T2015Z/
Buchanan MO-
254 PM CDT Sun Oct 24 2021

...THE TORNADO WARNING FOR SOUTHEASTERN BUCHANAN COUNTY 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 1000 PM CDT for northwestern
Missouri.

LAT...LON 3990 9421 3954 9421 3953 9460 3969 9460
TIME...MOT...LOC 1953Z 251DEG 29KT 3956 9456 

$$

MOC049-063-242015-
/O.CON.KEAX.TO.W.0019.000000T0000Z-211024T2015Z/
Clinton MO-DeKalb MO-
254 PM CDT Sun Oct 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR CLINTON
AND SOUTHEASTERN DEKALB COUNTIES...
    
At 253 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Gower, moving east at 35 mph.

HAZARD...Tornado and quarter size hail.

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...
Cameron, Plattsburg, Lathrop, Gower, Stewartsville, Osborn and
Turney.

This includes Interstate 35 in Missouri between mile markers 39 and
55.
 
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 3990 9421 3954 9421 3953 9460 3969 9460
TIME...MOT...LOC 1953Z 251DEG 29KT 3956 9456 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

CDB
972 
WWUS53 KEAX 242012
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
312 PM CDT Sun Oct 24 2021

MOC049-063-242021-
/O.EXP.KEAX.TO.W.0019.000000T0000Z-211024T2015Z/
Clinton MO-DeKalb MO-
312 PM CDT Sun Oct 24 2021

...THE TORNADO WARNING FOR CLINTON AND SOUTHEASTERN DEKALB COUNTIES
WILL EXPIRE AT 315 PM CDT...
    
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.  However
small hail and gusty winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 1000 PM CDT for northwestern
Missouri.

Remember, a Severe Thunderstorm Warning still remains in effect for
Clinton and southeastern DeKalb Counties.

LAT...LON 3990 9421 3954 9421 3953 9460 3969 9460
TIME...MOT...LOC 2011Z 240DEG 31KT 3963 9440 

$$

CDB

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 24, 12:52 AM CDTSpecial Weather StatementEAXGrundy23 min
Oct 24, 1:26 AM CDTSpecial Weather StatementEAXBuchanan34 min
Oct 24, 5:07 AM CDTFlash Flood WarningEAXGrundy, Harrison, Sullivan5 hr
Oct 24, 8:26 AM CDTRiver Flood WarningEAXCarroll, Chariton, Linn, Livingston37 hr
Oct 24, 2:05 PM CDTSevere Thunderstorm WarningEAXAndrew, Buchanan, Holt40 min
Oct 24, 2:12 PM CDTTornado Warning Tornado observedEAXAndrew, Holt33 min
Oct 24, 2:31 PM CDTTornado WarningEAXAndrew, Buchanan, DeKalb29 min
Oct 24, 2:39 PM CDTTornado WarningEAXAndrew23 min
Oct 24, 2:44 PM CDTSevere Thunderstorm WarningEAXBuchanan, Clinton, DeKalb46 min
Oct 24, 3:23 PM CDTTornado WarningEAXDaviess, DeKalb, Gentry37 min
Oct 24, 3:26 PM CDTTornado WarningEAXCaldwell, Clinton34 min
Oct 24, 3:50 PM CDTTornado WarningEAXCaldwell, Daviess, Livingston25 min
Oct 24, 4:07 PM CDTSpecial Weather StatementEAXHenry, Johnson23 min
Oct 24, 4:10 PM CDTTornado WarningEAXLivingston35 min
Oct 24, 4:16 PM CDTTornado WarningEAXGrundy, Harrison, Mercer29 min
Oct 24, 4:29 PM CDTSevere Thunderstorm WarningEAXJohnson, Pettis31 min
Oct 24, 4:37 PM CDTTornado WarningEAXLinn, Livingston, Sullivan38 min
Oct 24, 4:56 PM CDTSevere Thunderstorm WarningEAXCooper, Pettis49 min
Oct 24, 4:57 PM CDTTornado WarningEAXCooper, Pettis33 min
Oct 24, 5:10 PM CDTTornado WarningEAXAdair, Linn, Macon, Sullivan35 min
Oct 24, 5:54 PM CDTSevere Thunderstorm WarningEAXAdair, Schuyler17 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.