Alert archive / Missouri / Tornado Warnings in 2011

Tornado Warning 54, NWS Kansas City, MO

July 12, 2011Adair County, Missouri

NWS Kansas City, MO issued this tornado warning at Jul 12, 2011, 1:24 PM CDT for Adair County, Missouri. It was in force for 36 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: Jul 12, 2011, 1:24 PM CDT (18:24 UTC)
Expired: Jul 12, 2011, 2:00 PM CDT
In force: 36 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon

County Adair County, MO

The radar

The Des Moines radar (KDMX), 203 km from the middle of the area, began a volume at 18:27 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
Jul 12, 1:30 PM CDT	HAIL 2	Novinger, MO
Jul 12, 1:39 PM CDT	TSTM WND DMG	Kirksville, MO	SEVERAL LARGE TREE BRANCHES WERE REPORTED DOWN IN TOWN. THUNDERSTORM WIND GUSTS WERE ESTIMATED UP TO 60 MPH.
Jul 12, 1:39 PM CDT	TSTM WND GST 60	Kirksville, MO

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

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 6.4 hours before the alert went out and 239 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: 1234 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -49 m²/s²
0-3 km storm-relative helicity: 12 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

361 
WFUS53 KEAX 121824
TOREAX
MOC001-121900-
/O.NEW.KEAX.TO.W.0054.110712T1824Z-110712T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
124 PM CDT TUE JUL 12 2011

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  ADAIR COUNTY IN NORTHEAST MISSOURI...

* UNTIL 200 PM CDT

* AT 121 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR NOVINGER...OR NEAR KIRKSVILLE...AND MOVING
  EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  KIRKSVILLE...BRASHEAR...MILLARD...KIRKSVILLE REGIONAL AND GIBBS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4004 9254 4010 9280 4030 9273 4029 9234
      4004 9234
TIME...MOT...LOC 1824Z 279DEG 26KT 4019 9263
HAIL <.75IN

$$

DUX

3 follow-up statements

242 
WWUS53 KEAX 121836
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
136 PM CDT TUE JUL 12 2011

MOC001-121900-
/O.CON.KEAX.TO.W.0054.000000T0000Z-110712T1900Z/
ADAIR MO-
136 PM CDT TUE JUL 12 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ADAIR COUNTY
UNTIL 200 PM CDT...


AT 131 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR KIRKSVILLE...MOVING SOUTHEAST AT 30 MPH.  IN
ADDITION TO A TORNADO...DESTRUCTIVE HAIL UP TO TWO INCHES IN DIAMETER
IS EXPECTED WITH THIS STORM. AT 130 PM...THE PUBLIC REPORTED TWO 
INCH DIAMETER HAIL NORTH OF NOVINGER.

LOCATIONS IMPACTED INCLUDE...
  BRASHEAR...MILLARD...KIRKSVILLE REGIONAL AND GIBBS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4009 9270 4023 9266 4024 9234 4004 9234
      4004 9254
TIME...MOT...LOC 1836Z 294DEG 25KT 4016 9254
HAIL 2.00IN

$$

DUX

521 
WWUS53 KEAX 121854
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
154 PM CDT TUE JUL 12 2011

MOC001-121900-
/O.CON.KEAX.TO.W.0054.000000T0000Z-110712T1900Z/
ADAIR MO-
154 PM CDT TUE JUL 12 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ADAIR COUNTY
UNTIL 200 PM CDT...

AT 149 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 5 MILES NORTH OF LA PLATA...MOVING SOUTHEAST AT 30
MPH.  IN ADDITION TO A TORNADO...DESTRUCTIVE HAIL UP TO TWO INCHES IN
DIAMETER IS EXPECTED WITH THIS STORM ALONG WITH 60 MPH WINDS. 

AT 130 PM...THE PUBLIC REPORTED TWO INCH DIAMETER HAIL NORTH OF 
OVINGER.
AT 139 PM...OFFICIAL WEATHER INSTRUMENTATION MEASURED A 60 MPH WIND 
GUST IN KIRKSVILLE.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF SOUTHEASTERN ADAIR COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4004 9252 4010 9258 4018 9253 4018 9234
      4004 9234
TIME...MOT...LOC 1853Z 300DEG 27KT 4008 9243
HAIL 2.00IN

$$

DUX

665 
WWUS53 KEAX 121900
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
200 PM CDT TUE JUL 12 2011

MOC001-121909-
/O.EXP.KEAX.TO.W.0054.000000T0000Z-110712T1900Z/
ADAIR MO-
200 PM CDT TUE JUL 12 2011

...THE TORNADO WARNING FOR SOUTHEASTERN ADAIR COUNTY WILL EXPIRE AT
200 PM CDT...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT 
FOR THE AREA.  HOWEVER TWO INCH DIAMETER HAIL AND 60 MPH WINDS ARE 
STILL POSSIBLE WITH THIS THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM CDT

REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 
PM CDT.

LAT...LON 4004 9252 4010 9258 4018 9253 4018 9234
      4004 9234
TIME...MOT...LOC 1859Z 301DEG 24KT 4006 9241

$$

DUX

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 3:58 AM CDT	Heat Advisory	EAX	Adair, Atchison, Gentry, Grundy, Harrison, Mercer and 5 more	15 hr
Jul 12, 12:57 PM CDT	Special Weather Statement	EAX	Adair	48 min
Jul 12, 12:59 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Putnam, Schuyler, Sullivan	46 min
Jul 12, 1:23 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Macon, Putnam, Schuyler	37 min
Jul 12, 1:58 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Linn, Macon, Sullivan	47 min
Jul 12, 4:50 PM CDT	Special Weather Statement	EAX	Clay	40 min
Jul 12, 5:06 PM CDT	Special Weather Statement	EAX	Caldwell	39 min
Jul 12, 5:17 PM CDT	Special Weather Statement	EAX	Andrew, Gentry	43 min
Jul 12, 5:43 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, DeKalb, Gentry, Nodaway	32 min
Jul 12, 5:57 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, Caldwell, Clinton, Daviess, DeKalb	33 min
Jul 12, 6:27 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clinton, Daviess, DeKalb, Gentry	33 min
Jul 12, 6:39 PM CDT	Special Weather Statement	EAX	Lafayette, Ray	51 min
Jul 12, 6:42 PM CDT	Special Weather Statement	EAX	Howard	48 min
Jul 12, 6:55 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Caldwell, Carroll, Clay, Clinton, Daviess and 4 more	35 min

Nearby

Tornado Warnings in Missouri, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.