Alert archive / Missouri / Tornado Warnings in 2017

Tornado Warning 18, NWS Kansas City, MO

March 6, 2017Macon County, Missouri

NWS Kansas City, MO issued this tornado warning at Mar 6, 2017, 9:40 PM CST for Macon County, Missouri. It was in force for 9 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: Mar 6, 2017, 9:40 PM CST (03:40 UTC)
Expired: Mar 6, 2017, 9:49 PM CST
In force: 9 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

County Macon County, MO

The radar

The St Louis radar (KLSX), 194 km from the middle of the area, began a volume at 03:43 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
Mar 6, 2:27 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 3.7 hours before the alert went out and 252 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: 39 J/kg
Mixed-layer CIN: -343 J/kg
Mixed-layer LCL: 1016 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 407 m²/s²
0-3 km storm-relative helicity: 489 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

848 
WFUS53 KEAX 070340
TOREAX
MOC121-070400-
/O.NEW.KEAX.TO.W.0018.170307T0340Z-170307T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Kansas City/Pleasant Hill MO
940 PM CST MON MAR 6 2017

The National Weather Service in Pleasant Hill has issued a

* Tornado Warning for...
  East central Macon County in north central Missouri...

* Until 1000 PM CST
    
* At 940 PM CST, a tornado producing storm was located near Clarence,
  or 9 miles northeast of Macon, moving east at 65 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. 

* This tornadic thunderstorm will remain over mainly rural areas of
  east central Macon County.

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 3971 9242 3989 9248 3999 9235 3995 9234
      3995 9229 3976 9229
TIME...MOT...LOC 0340Z 250DEG 56KT 3980 9232 

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

$$

Gitro

1 follow-up statement

230 
WWUS53 KEAX 070349
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
949 PM CST MON MAR 6 2017

MOC121-070358-
/O.CAN.KEAX.TO.W.0018.000000T0000Z-170307T0400Z/
Macon MO-
949 PM CST MON MAR 6 2017

...THE TORNADO WARNING FOR EAST CENTRAL MACON 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 CST for north central
Missouri.

LAT...LON 3971 9242 3989 9248 3999 9235 3995 9234
      3995 9229 3976 9229
TIME...MOT...LOC 0346Z 250DEG 56KT 3985 9215 

$$

Gitro

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 6, 6:12 PM CST	Tornado Warning	EAX	Andrew, Holt, Nodaway	33 min
Mar 6, 6:22 PM CST	Tornado Warning	EAX	Holt, Nodaway	23 min
Mar 6, 6:39 PM CST	Special Weather Statement	EAX	Buchanan	36 min
Mar 6, 6:43 PM CST	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, DeKalb, Gentry	47 min
Mar 6, 6:52 PM CST	Severe Thunderstorm Warning	EAX	Gentry, Harrison, Mercer, Nodaway, Worth	38 min
Mar 6, 6:53 PM CST	Severe Thunderstorm Warning	EAX	Buchanan, Clay, Platte	37 min
Mar 6, 6:59 PM CST	Tornado Warning	EAX	Buchanan, Clay, Platte	31 min
Mar 6, 7:03 PM CST	Tornado Warning	EAX	Andrew, Buchanan, DeKalb, Gentry	27 min
Mar 6, 7:06 PM CST	Severe Thunderstorm Warning	EAX	Buchanan, Platte	39 min
Mar 6, 7:18 PM CST	Tornado Warning	EAX	Buchanan, Clay, Platte	14 min
Mar 6, 7:26 PM CST	Severe Thunderstorm Warning	EAX	Buchanan, Caldwell, Clay, Clinton, DeKalb, Platte	34 min
Mar 6, 7:27 PM CST	Severe Thunderstorm Warning	EAX	Clay, Clinton, Jackson, Lafayette, Platte, Ray	48 min
Mar 6, 7:27 PM CST	Tornado Warning	EAX	Harrison, Mercer	33 min
Mar 6, 7:29 PM CST	Tornado Warning Tornado observed	EAX	Clay, Clinton, Platte	31 min
Mar 6, 7:33 PM CST	Tornado Warning	EAX	Daviess, DeKalb, Harrison	27 min
Mar 6, 7:36 PM CST	Severe Thunderstorm Warning	EAX	Cass, Jackson	54 min
Mar 6, 7:48 PM CST	Tornado Warning	EAX	Mercer, Putnam	27 min
Mar 6, 7:50 PM CST	Tornado Warning	EAX	Caldwell, Clinton, Daviess	25 min
Mar 6, 7:55 PM CST	Severe Thunderstorm Warning	EAX	Bates, Cass	35 min
Mar 6, 7:59 PM CST	Tornado Warning	EAX	Cass, Jackson, Johnson, Lafayette	31 min
Mar 6, 8:06 PM CST	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Clay, Daviess, Grundy, Jackson and 7 more	24 min
Mar 6, 8:11 PM CST	Tornado Warning	EAX	Caldwell, Daviess, Livingston	23 min
Mar 6, 8:15 PM CST	Severe Thunderstorm Warning	EAX	Carroll, Cass, Henry, Jackson, Johnson, Lafayette and 1 more	45 min
Mar 6, 8:18 PM CST	Severe Thunderstorm Warning	EAX	Bates	27 min
Mar 6, 8:19 PM CST	Tornado Warning	EAX	Jackson, Johnson, Lafayette	26 min
Mar 6, 8:25 PM CST	Flash Flood Warning	EAX	Clay, Jackson	3 hr
Mar 6, 8:25 PM CST	Severe Thunderstorm Warning	EAX	Bates, Cass, Henry	35 min
Mar 6, 8:32 PM CST	Severe Thunderstorm Warning	EAX	Adair, Carroll, Chariton, Grundy, Lafayette, Linn and 7 more	28 min
Mar 6, 8:33 PM CST	Tornado Warning	EAX	Carroll, Chariton, Saline	27 min
Mar 6, 8:55 PM CST	Severe Thunderstorm Warning	EAX	Carroll, Chariton, Cooper, Howard, Johnson, Lafayette and 6 more	35 min
Mar 6, 8:57 PM CST	Special Weather Statement	EAX	Adair, Linn, Macon, Schuyler	33 min
Mar 6, 8:58 PM CST	Tornado Warning	EAX	Bates, Henry	32 min
Mar 6, 8:59 PM CST	Special Weather Statement	EAX	Bates, Henry, Johnson	46 min
Mar 6, 9:01 PM CST	Severe Thunderstorm Warning	EAX	Bates, Henry, Johnson, Pettis	29 min
Mar 6, 9:04 PM CST	Severe Thunderstorm Warning	EAX	Adair, Linn, Macon, Putnam, Schuyler, Sullivan	41 min
Mar 6, 9:10 PM CST	Tornado Warning	EAX	Chariton, Linn, Macon	35 min
Mar 6, 9:23 PM CST	Tornado Warning	EAX	Cooper, Pettis, Saline	37 min
Mar 6, 9:28 PM CST	Severe Thunderstorm Warning	EAX	Chariton, Cooper, Howard, Macon, Pettis, Randolph and 1 more	47 min
Mar 6, 9:56 PM CST	Tornado Warning	EAX	Cooper, Howard	11 min
Mar 7, 11:07 AM CST	Wind Advisory	EAX	Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 22 more	5 hr
Mar 7, 3:44 PM CST	Fire Weather Watch	EAX	Bates, Buchanan, Cass, Clay, Clinton, Henry and 6 more	10 hr

Nearby

Tornado Warnings in Missouri, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.