Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 7, NWS Kansas City, MO

March 15, 2021Johnson County, Missouri

NWS Kansas City, MO issued this tornado warning at Mar 15, 2021, 5:38 PM CDT for Johnson County, Missouri. It was in force for 37 min. 3 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: Mar 15, 2021, 5:38 PM CDT (22:38 UTC)
Expired: Mar 15, 2021, 6:15 PM CDT
In force: 37 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Johnson County, MO

What was reported inside it

Time	Report	Where	Remark
Mar 15, 5:40 PM CDT	HAIL 0.5	2 Nw Centerview, MO	REPORT FROM MPING: HALF-INCH (0.50 IN.).
Mar 15, 5:54 PM CDT	HAIL 0.75	1 Sw Warrensburg, MO	REPORT FROM MPING: DIME (0.75 IN.).
Mar 15, 5:55 PM CDT	HAIL 1	Warrensburg, MO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 10.6 hours before the alert went out and 163 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: 685 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

300 
WFUS53 KEAX 152238
TOREAX
MOC101-152315-
/O.NEW.KEAX.TO.W.0007.210315T2238Z-210315T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Kansas City/Pleasant Hill MO
538 PM CDT Mon Mar 15 2021

The National Weather Service in Pleasant Hill has issued a

* Tornado Warning for...
  Central Johnson County in west central Missouri...

* Until 615 PM CDT.
    
* At 537 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Holden, moving east at 25 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...
  Warrensburg, Knob Noster and Centerview. 

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 3868 9394 3882 9396 3891 9365 3881 9357
      3869 9361
TIME...MOT...LOC 2237Z 249DEG 21KT 3876 9390 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Blair

3 follow-up statements

348 
WWUS53 KEAX 152247
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
547 PM CDT Mon Mar 15 2021

MOC101-152315-
/O.CON.KEAX.TO.W.0007.000000T0000Z-210315T2315Z/
Johnson MO-
547 PM CDT Mon Mar 15 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR CENTRAL
JOHNSON COUNTY...
    
At 547 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Warrensburg, moving east at 25 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...
Warrensburg, Knob Noster and Centerview. 

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 3868 9388 3883 9389 3891 9365 3881 9357
      3869 9361
TIME...MOT...LOC 2247Z 249DEG 21KT 3878 9383 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Blair

417 
WWUS53 KEAX 152256
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
556 PM CDT Mon Mar 15 2021

MOC101-152315-
/O.CON.KEAX.TO.W.0007.000000T0000Z-210315T2315Z/
Johnson MO-
556 PM CDT Mon Mar 15 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHEASTERN JOHNSON COUNTY...
    
At 556 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Warrensburg, moving east at 25 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...
Warrensburg and Knob Noster. 

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 3868 9379 3881 9380 3888 9363 3881 9357
      3869 9361
TIME...MOT...LOC 2256Z 260DEG 21KT 3876 9375 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Blair

644 
WWUS53 KEAX 152313
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
613 PM CDT Mon Mar 15 2021

MOC101-152322-
/O.EXP.KEAX.TO.W.0007.000000T0000Z-210315T2315Z/
Johnson MO-
613 PM CDT Mon Mar 15 2021

...THE TORNADO WARNING FOR NORTHEASTERN JOHNSON COUNTY WILL EXPIRE AT
615 PM CDT...
                
The rotation which prompted the warning has weakened below severe 
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However small hail
and gusty winds are still possible with this thunderstorm.

LAT...LON 3868 9379 3881 9380 3888 9363 3881 9357
      3869 9361
TIME...MOT...LOC 2312Z 249DEG 21KT 3879 9364 

$$

Blair

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 14, 9:54 PM CDT	River Flood Warning	EAX	Buchanan	3 days
Mar 15, 8:45 AM CDT	River Flood Warning	EAX	Atchison, Holt	4 hr
Mar 15, 8:45 AM CDT	River Flood Warning	EAX	Andrew, Buchanan	25 hr
Mar 15, 8:45 AM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	3 days
Mar 15, 9:31 AM CDT	River Flood Warning	EAX	Daviess, Gentry	49 hr
Mar 15, 10:08 AM CDT	River Flood Warning	EAX	Cooper	22 hr
Mar 15, 10:08 AM CDT	River Flood Warning	EAX	Carroll	4 days
Mar 15, 1:26 PM CDT	River Flood Warning	EAX	Daviess, Livingston	45 hr
Mar 15, 1:26 PM CDT	River Flood Warning	EAX	Linn, Livingston	55 hr
Mar 15, 2:16 PM CDT	River Flood Warning	EAX	Platte	69 hr
Mar 15, 2:16 PM CDT	River Flood Warning	EAX	Platte	62 hr
Mar 15, 4:26 PM CDT	Tornado Warning	EAX	Cass, Jackson	34 min
Mar 15, 4:47 PM CDT	Tornado Warning	EAX	Cass	28 min
Mar 15, 5:07 PM CDT	Tornado Warning	EAX	Cass, Johnson	38 min
Mar 15, 5:14 PM CDT	Tornado Warning	EAX	Cass, Jackson	31 min
Mar 15, 5:45 PM CDT	Tornado Warning	EAX	Pettis	31 min
Mar 15, 6:12 PM CDT	Severe Thunderstorm Warning	EAX	Johnson, Pettis	48 min
Mar 15, 6:27 PM CDT	Tornado Warning	EAX	Pettis	33 min
Mar 15, 6:52 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Pettis	23 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.