Alert archive / Missouri / Tornado Warnings in 2018

Tornado Warning 15, NWS Kansas City, MO

October 9, 2018Caldwell County, Ray County, Missouri

NWS Kansas City, MO issued this tornado warning at Oct 9, 2018, 2:54 PM CDT for Caldwell County, Ray County, Missouri. It was in force for 36 min. 2 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: Oct 9, 2018, 2:54 PM CDT (19:54 UTC)
Expired: Oct 9, 2018, 3:30 PM CDT
In force: 36 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Caldwell County, MO, Ray County, MO

The radar

The Pleasant Hill radar (KEAX), 85 km from the middle of the area, began a volume at 19:55 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
Oct 9, 2:58 PM CDT	TORNADO	4 Nnw Knoxville, MO
Oct 9, 3:06 PM CDT	TSTM WND DMG	1 Ese Polo, MO	FROM SOCIAL MEDIA. LARGE TREE DOWN ACROSS SECONDARY ROADWAY.

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
Oct 9, 1:46 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 7.9 hours before the alert went out and 285 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: 592 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

711 
WFUS53 KEAX 091954
TOREAX
MOC025-177-092030-
/O.NEW.KEAX.TO.W.0015.181009T1954Z-181009T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Kansas City/Pleasant Hill MO
254 PM CDT TUE OCT 9 2018

The National Weather Service in Pleasant Hill has issued a

* Tornado Warning for...
  North central Ray County in west central Missouri...
  Southeastern Caldwell County in north central Missouri...

* Until 330 PM CDT.
    
* At 253 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Polo, or 10 miles east of Lawson, moving north at
  30 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...
  Polo, Kingston, Cowgill and Knoxville. 

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 3941 9393 3944 9408 3971 9404 3970 9378
TIME...MOT...LOC 1953Z 197DEG 28KT 3946 9400 

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

$$

Blair

2 follow-up statements

819 
WWUS53 KEAX 092002
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
302 PM CDT TUE OCT 9 2018

MOC025-177-092030-
/O.CON.KEAX.TO.W.0015.000000T0000Z-181009T2030Z/
Ray MO-Caldwell MO-
302 PM CDT TUE OCT 9 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR NORTH
CENTRAL RAY AND SOUTHEASTERN CALDWELL COUNTIES...
    
At 302 PM CDT, a confirmed tornado was located over Polo, or 12 miles
northeast of Lawson, moving north at 30 mph.

HAZARD...Damaging tornado.

SOURCE...Weather spotters 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...
Polo, Kingston and Cowgill. 

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.

&&

LAT...LON 3948 9390 3949 9407 3971 9404 3970 9378
TIME...MOT...LOC 2002Z 192DEG 28KT 3954 9400 

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

$$

Blair

176 
WWUS53 KEAX 092025
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
325 PM CDT TUE OCT 9 2018

MOC025-177-092034-
/O.EXP.KEAX.TO.W.0015.000000T0000Z-181009T2030Z/
Ray MO-Caldwell MO-
325 PM CDT TUE OCT 9 2018

...THE TORNADO WARNING FOR NORTH CENTRAL RAY AND SOUTHEASTERN
CALDWELL COUNTIES WILL EXPIRE AT 330 PM CDT...
                
The storm 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.

A Tornado Watch remains in effect until 900 PM CDT for north central
and west central Missouri.

LAT...LON 3948 9390 3949 9407 3971 9404 3970 9378
TIME...MOT...LOC 2024Z 197DEG 28KT 3970 9394 

$$

Blair

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 8, 9:59 PM CDT	River Flood Warning	EAX	Andrew, Holt, Nodaway	65 hr
Oct 9, 11:29 AM CDT	Areal Flood Warning	EAX	Andrew, Atchison, Daviess, DeKalb, Gentry, Harrison and 3 more	24 hr
Oct 9, 3:35 PM CDT	Areal Flood Warning	EAX	Caldwell, Clinton, Daviess, DeKalb, Grundy, Harrison and 7 more	12 hr
Oct 9, 3:50 PM CDT	Areal Flood Warning	EAX	Andrew, Bates, Buchanan, Cass, Clay, Clinton and 3 more	12 hr
Oct 9, 4:29 PM CDT	Tornado Warning	EAX	Mercer	31 min

Nearby

Tornado Warnings in Missouri, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.