Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 18, NWS Kansas City, MO

October 24, 2021Andrew County, Missouri

NWS Kansas City, MO issued this tornado warning at Oct 24, 2021, 2:39 PM CDT for Andrew County, Missouri. It was in force for 23 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, 2:39 PM CDT (19:39 UTC)
Expired: Oct 24, 2021, 3:02 PM CDT
In force: 23 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Andrew County, MO

The radar

The Pleasant Hill radar (KEAX), 143 km from the middle of the area, began a volume at 19:44 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 24, 2:06 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 7.7 hours before the alert went out and 139 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: 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.

472 
WFUS53 KEAX 241939
TOREAX
MOC003-242015-
/O.NEW.KEAX.TO.W.0018.211024T1939Z-211024T2015Z/

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

The National Weather Service in Pleasant Hill has issued a

* Tornado Warning for...
  Central Andrew County in northwestern Missouri...

* Until 315 PM CDT.
    
* At 238 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Savannah, 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...
  Savannah, Amazonia, Rosendale and Rea. 

This includes Interstate 29 between mile markers 58 and 64.
 
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 4013 9473 4012 9472 4013 9464 4012 9461
      4005 9460 3998 9461 3988 9493 3989 9493
      3999 9498
TIME...MOT...LOC 1938Z 241DEG 31KT 3995 9490 

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

$$

CDB

1 follow-up statement

243 
WWUS53 KEAX 242002
SVSEAX

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

MOC003-242012-
/O.CAN.KEAX.TO.W.0018.000000T0000Z-211024T2015Z/
Andrew MO-
302 PM CDT Sun Oct 24 2021

...THE TORNADO WARNING FOR CENTRAL ANDREW COUNTY IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits. Therefore, the warning has been cancelled.

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

LAT...LON 4013 9473 4012 9472 4013 9464 4012 9461
      4005 9460 3998 9461 3988 9493 3989 9493
      3999 9498
TIME...MOT...LOC 2000Z 241DEG 31KT 4005 9466 

$$

CDB

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 12:52 AM CDT	Special Weather Statement	EAX	Grundy	23 min
Oct 24, 1:26 AM CDT	Special Weather Statement	EAX	Buchanan	34 min
Oct 24, 5:07 AM CDT	Flash Flood Warning	EAX	Grundy, Harrison, Sullivan	5 hr
Oct 24, 8:26 AM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	37 hr
Oct 24, 2:05 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, Holt	40 min
Oct 24, 2:12 PM CDT	Tornado Warning Tornado observed	EAX	Andrew, Holt	33 min
Oct 24, 2:31 PM CDT	Tornado Warning	EAX	Andrew, Buchanan, DeKalb	29 min
Oct 24, 2:44 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Clinton, DeKalb	46 min
Oct 24, 2:51 PM CDT	Tornado Warning	EAX	Buchanan, Clinton, DeKalb	24 min
Oct 24, 3:23 PM CDT	Tornado Warning	EAX	Daviess, DeKalb, Gentry	37 min
Oct 24, 3:26 PM CDT	Tornado Warning	EAX	Caldwell, Clinton	34 min
Oct 24, 3:50 PM CDT	Tornado Warning	EAX	Caldwell, Daviess, Livingston	25 min
Oct 24, 4:07 PM CDT	Special Weather Statement	EAX	Henry, Johnson	23 min
Oct 24, 4:10 PM CDT	Tornado Warning	EAX	Livingston	35 min
Oct 24, 4:16 PM CDT	Tornado Warning	EAX	Grundy, Harrison, Mercer	29 min
Oct 24, 4:29 PM CDT	Severe Thunderstorm Warning	EAX	Johnson, Pettis	31 min
Oct 24, 4:37 PM CDT	Tornado Warning	EAX	Linn, Livingston, Sullivan	38 min
Oct 24, 4:56 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Pettis	49 min
Oct 24, 4:57 PM CDT	Tornado Warning	EAX	Cooper, Pettis	33 min
Oct 24, 5:10 PM CDT	Tornado Warning	EAX	Adair, Linn, Macon, Sullivan	35 min
Oct 24, 5:54 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Schuyler	17 min

Nearby

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