Alert archive / Missouri / Tornado Warnings in 2020

Tornado Warning 3, NWS Kansas City, MO

June 4, 2020Jackson County, Missouri

NWS Kansas City, MO issued this tornado warning at Jun 4, 2020, 2:31 AM CDT for Jackson County, Missouri. It was in force for 14 min. 1 report 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 4, 2020, 2:31 AM CDT (07:31 UTC)
Expired: Jun 4, 2020, 2:45 AM CDT
In force: 14 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Jackson County, MO

The radar

The Pleasant Hill radar (KEAX), 10 km from the middle of the area, began a volume at 07:31 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

Time	Report	Where	Remark
Jun 4, 2:32 AM CDT	TSTM WND DMG	2 Nw Lake Lotawana, MO	HAM REPORTS FOUR INCH DIAMETER TREE DOWN, 9 TO 10 FEET TALL.

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.

Issued	Product	Office	Lasted
Jun 3, 9:38 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 7.5 hours before the alert went out and 125 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: 2970 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 1684 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.0

Open this sounding in Storm Lab

The text

As transmitted.

085 
WFUS53 KEAX 040731
TOREAX
MOC095-040745-
/O.NEW.KEAX.TO.W.0003.200604T0731Z-200604T0745Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Kansas City/Pleasant Hill MO
231 AM CDT Thu Jun 4 2020

The National Weather Service in Pleasant Hill has issued a

* Tornado Warning for...
  Southeastern Jackson County in west central Missouri...

* Until 245 AM CDT.
    
* At 231 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over Lake Lotawana, moving southeast 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.

* Locations impacted include...
  Lake Lotawana and Lone Jack. 

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3884 9422 3894 9431 3898 9425 3888 9412
      3883 9412
TIME...MOT...LOC 0731Z 318DEG 39KT 3893 9424 

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

$$

Barham

2 follow-up statements

767 
WWUS53 KEAX 040733
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
233 AM CDT Thu Jun 4 2020

MOC095-040745-
/O.CON.KEAX.TO.W.0003.000000T0000Z-200604T0745Z/
Jackson MO-
233 AM CDT Thu Jun 4 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR
SOUTHEASTERN JACKSON COUNTY...
        
At 233 AM CDT, a confirmed tornado was located over Lake Lotawana,
moving southeast at 45 mph.

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

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...
Lake Lotawana and Lone Jack. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3884 9422 3893 9430 3897 9424 3888 9412
      3883 9412
TIME...MOT...LOC 0733Z 318DEG 39KT 3891 9422 

TORNADO...OBSERVED
HAIL...<.75IN

$$

Barham

882 
WWUS53 KEAX 040740
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
240 AM CDT Thu Jun 4 2020

MOC095-040750-
/O.EXP.KEAX.TO.W.0003.000000T0000Z-200604T0745Z/
Jackson MO-
240 AM CDT Thu Jun 4 2020

...THE TORNADO WARNING FOR SOUTHEASTERN JACKSON COUNTY WILL EXPIRE AT
245 AM 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.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
west central Missouri. A Severe Thunderstorm Watch also remains in
effect until 800 AM CDT for west central Missouri.

Remember, a Severe Thunderstorm Warning still remains in effect for
Jackson County. 

LAT...LON 3884 9422 3893 9430 3897 9424 3888 9412
      3883 9412
TIME...MOT...LOC 0740Z 318DEG 39KT 3887 9417 

$$

Barham

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 7:10 PM CDT	Special Weather Statement	EAX	Pettis	35 min
Jun 3, 8:51 PM CDT	Special Weather Statement	EAX	Randolph	24 min
Jun 3, 9:29 PM CDT	Special Weather Statement	EAX	Randolph	46 min
Jun 3, 10:03 PM CDT	Flash Flood Warning	EAX	Randolph	6 hr
Jun 3, 10:15 PM CDT	Severe Thunderstorm Warning	EAX	Randolph	30 min
Jun 3, 10:27 PM CDT	Severe Thunderstorm Warning	EAX	Chariton, Howard, Randolph	33 min
Jun 3, 10:41 PM CDT	Special Weather Statement	EAX	Howard	49 min
Jun 3, 10:43 PM CDT	Special Weather Statement	EAX	Chariton, Macon	47 min
Jun 3, 10:47 PM CDT	Special Weather Statement	EAX	Randolph	43 min
Jun 3, 10:53 PM CDT	Severe Thunderstorm Warning	EAX	Chariton	22 min
Jun 3, 11:11 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Chariton, Livingston	34 min
Jun 3, 11:26 PM CDT	Flash Flood Warning	EAX	Chariton, Howard	5 hr
Jun 3, 11:35 PM CDT	Special Weather Statement	EAX	Chariton	40 min
Jun 3, 11:38 PM CDT	Special Weather Statement	EAX	Chariton	52 min
Jun 3, 11:44 PM CDT	Special Weather Statement	EAX	Carroll	46 min
Jun 4, 12:03 AM CDT	Special Weather Statement	EAX	Henry, Johnson, Lafayette, Pettis, Ray	42 min
Jun 4, 12:08 AM CDT	Severe Thunderstorm Warning	EAX	Carroll, Saline	37 min
Jun 4, 12:14 AM CDT	Special Weather Statement	EAX	Atchison	46 min
Jun 4, 12:28 AM CDT	Flash Flood Warning	EAX	Carroll, Chariton, Saline	5 hr
Jun 4, 12:46 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, Holt	44 min
Jun 4, 12:49 AM CDT	Areal Flood Advisory	EAX	Chariton, Linn, Macon, Randolph	3 hr
Jun 4, 12:51 AM CDT	Special Weather Statement	EAX	Holt, Nodaway	39 min
Jun 4, 12:52 AM CDT	Special Weather Statement	EAX	Cass, Clay, Henry, Jackson, Johnson, Lafayette and 1 more	38 min
Jun 4, 1:09 AM CDT	Special Weather Statement	EAX	Buchanan, Clay, Clinton, Platte	51 min
Jun 4, 1:26 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, Clinton, Daviess, DeKalb, Gentry and 1 more	34 min
Jun 4, 1:30 AM CDT	Areal Flood Advisory	EAX	Andrew, Holt	3 hr
Jun 4, 1:31 AM CDT	Special Weather Statement	EAX	Caldwell	44 min
Jun 4, 1:37 AM CDT	Special Weather Statement	EAX	Bates, Cass, Clay, Jackson	38 min
Jun 4, 1:41 AM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Caldwell, Clay, Clinton, Jackson, Platte and 1 more	34 min
Jun 4, 1:48 AM CDT	Special Weather Statement	EAX	Gentry	42 min
Jun 4, 1:52 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Cass, Clay, Clinton, Daviess and 5 more	38 min
Jun 4, 2:03 AM CDT	Flash Flood Warning	EAX	Caldwell, Carroll, Clinton, Daviess, DeKalb, Livingston and 1 more	3 hr
Jun 4, 2:14 AM CDT	Severe Thunderstorm Warning	EAX	Daviess, DeKalb, Grundy, Livingston	46 min
Jun 4, 2:17 AM CDT	Special Weather Statement	EAX	Cass	43 min
Jun 4, 2:21 AM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	39 min
Jun 4, 2:26 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Cass, Chariton, Henry, Jackson and 5 more	49 min
Jun 4, 2:55 AM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Henry	35 min
Jun 4, 2:59 AM CDT	Tornado Warning	EAX	Bates, Cass	31 min
Jun 4, 3:04 AM CDT	Severe Thunderstorm Warning	EAX	Cooper, Henry, Johnson, Lafayette, Pettis, Saline	4 min
Jun 4, 3:06 AM CDT	Severe Thunderstorm Warning	EAX	Cooper, Henry, Howard, Johnson, Lafayette, Pettis and 1 more	39 min
Jun 4, 3:28 AM CDT	Tornado Warning	EAX	Bates	14 min
Jun 4, 3:30 AM CDT	Areal Flood Advisory	EAX	Carroll, Lafayette, Ray, Saline	3 hr
Jun 4, 3:40 AM CDT	Special Weather Statement	EAX	Cooper, Pettis	50 min
Jun 4, 3:44 AM CDT	River Flood Warning	EAX	Carroll	4 days
Jun 4, 3:52 AM CDT	River Flood Warning	EAX	Howard	32 hr
Jun 4, 3:57 AM CDT	River Flood Warning	EAX	Ray	21 days
Jun 4, 4:09 AM CDT	Areal Flood Warning	EAX	Chariton, Howard, Randolph	6 hr
Jun 4, 4:50 AM CDT	Areal Flood Warning	EAX	Caldwell, Carroll, Chariton, Lafayette, Ray, Saline	6 hr
Jun 4, 7:38 AM CDT	River Flood Warning	EAX	Johnson, Pettis	45 hr
Jun 4, 7:38 AM CDT	River Flood Warning	EAX	Cooper, Saline	3 days
Jun 4, 8:02 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	15 hr
Jun 4, 9:47 AM CDT	River Flood Warning	EAX	Carroll, Chariton, Saline	60 hr
Jun 4, 9:47 AM CDT	River Flood Warning	EAX	Cooper	36 hr
Jun 4, 10:15 AM CDT	Areal Flood Warning	EAX	Caldwell, Carroll, Chariton, Daviess, Howard, Lafayette and 3 more	24 hr

Nearby

Tornado Warnings in Missouri, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.