Alert archive / Missouri / Tornado Warnings in 2006

Tornado Warning 32, NWS St. Louis, MO

March 12, 2006Audrain County, Boone County, Missouri

NWS St. Louis, MO issued this tornado warning at Mar 12, 2006, 4:29 PM CST for Audrain County, Boone County, Missouri. It was in force for 46 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 12, 2006, 4:29 PM CST (22:29 UTC)
Expired: Mar 12, 2006, 5:15 PM CST
In force: 46 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Audrain County, MO, Boone County, MO

The radar

The St Louis radar (KLSX), 149 km from the middle of the area, began a volume at 22:28 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 12, 11:49 AM CST	Tornado Watch	SPC	10 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.5 hours before the alert went out and 291 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: 262 J/kg
Mixed-layer CIN: -159 J/kg
Mixed-layer LCL: 728 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 122229
TORLSX
MOC007-019-122315-
/O.NEW.KLSX.TO.W.0032.060312T2229Z-060312T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
429 PM CST SUN MAR 12 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN AUDRAIN COUNTY IN CENTRAL MISSOURI
  NORTHERN BOONE COUNTY IN CENTRAL MISSOURI

* UNTIL 515 PM CST

* AT 429 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A LARGE AND EXTREMELY DANGEROUS TORNADO 28 MILES SOUTHWEST OF
  STURGEON...MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  STURGEON...
  HALLSVILLE...
  CENTRALIA...

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS
STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CST SUNDAY EVENING
FOR SOUTHWESTERN ILLINOIS AND EASTERN MISSOURI.

LAT...LON 3925 9243 3898 9258 3917 9189 3935 9200
      3934 9230

$$

TRUETT/LENNING

1 follow-up statement

000 
WWUS53 KLSX 122249 RRA
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
447 PM CST SUN MAR 12 2006

MOC007-019-122315-
/O.CON.KLSX.TO.W.0032.000000T0000Z-060312T2315Z/
BOONE MO-AUDRAIN MO-
447 PM CST SUN MAR 12 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CST FOR WESTERN
AUDRAIN AND NORTHERN BOONE COUNTIES...

AT 444 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM
SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO OVER 
HARRISBURG...MOVING NORTHEAST AT 45 MPH.  AT 437 PM...A TORNADO WAS 
REPORTED 6 MILES SOUTHWEST OF FAYETTE...IN HOWARD COUNTY.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...
HARRISBURG...STURGEON...HALLSVILLE AND CENTRALIA.  IF YOU ARE IN THE 
PATH OF THIS STORM...TAKE...COVER...NOW

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS 
STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. GO TO THE 
LOWEST FLOOR OF YOUR BUILDING...AND COVER YOUR HEAD.  STAY AWAY FROM 
OUTSIDE WALLS AND WINDOWS.

LAT...LON 3925 9243 3898 9258 3917 9189 3935 9200
      3934 9230

$$

TRUETT

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 11, 6:21 PM CST	Severe Thunderstorm Warning	LSX	Crawford, Washington	39 min
Mar 11, 7:05 PM CST	Severe Thunderstorm Warning	LSX	Crawford, Iron, Washington	40 min
Mar 11, 7:22 PM CST	Tornado Warning	LSX	Reynolds	38 min
Mar 11, 7:54 PM CST	Tornado Warning	LSX	Crawford	51 min
Mar 11, 7:58 PM CST	Tornado Warning	LSX	Iron, Reynolds	47 min
Mar 11, 8:20 PM CST	Tornado Warning	LSX	Madison	55 min
Mar 11, 8:26 PM CST	Tornado Warning	LSX	Washington	49 min
Mar 11, 8:47 PM CST	Severe Thunderstorm Warning	LSX	Crawford	28 min
Mar 11, 9:00 PM CST	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	30 min
Mar 11, 9:05 PM CST	Tornado Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois	40 min
Mar 11, 9:15 PM CST	Severe Thunderstorm Warning	LSX	Washington	30 min
Mar 11, 9:23 PM CST	Severe Thunderstorm Warning	LSX	Crawford	29 min
Mar 11, 9:39 PM CST	Tornado Warning	LSX	Sainte Genevieve	51 min
Mar 11, 9:43 PM CST	Severe Thunderstorm Warning	LSX	Washington	47 min
Mar 11, 10:17 PM CST	Severe Thunderstorm Warning	LSX	Sainte Genevieve	43 min
Mar 11, 10:26 PM CST	Severe Thunderstorm Warning	LSX	Crawford	38 min
Mar 11, 11:01 PM CST	Severe Thunderstorm Warning	LSX	Jefferson, Washington	39 min
Mar 11, 11:53 PM CST	Tornado Warning	LSX	Crawford, Washington	37 min
Mar 12, 12:12 AM CST	Tornado Warning	LSX	Jefferson	41 min
Mar 12, 12:18 AM CST	Tornado Warning	LSX	Washington	19 min
Mar 12, 12:35 AM CST	Severe Thunderstorm Warning	LSX	Madison, Sainte Genevieve, Saint Francois	40 min
Mar 12, 12:44 AM CST	Flash Flood Warning	LSX	Crawford, Jefferson, Sainte Genevieve, Saint Francois, Washington	6 hr
Mar 12, 12:46 AM CST	Tornado Warning	LSX	Sainte Genevieve	23 min
Mar 12, 2:53 AM CST	Severe Thunderstorm Warning	LSX	Reynolds	32 min
Mar 12, 3:03 AM CST	Flash Flood Warning	LSX	Iron, Madison, Reynolds	4 hr
Mar 12, 10:51 AM CST	Severe Thunderstorm Warning	LSX	Marion, Monroe, Ralls, Shelby	39 min
Mar 12, 10:54 AM CST	Tornado Warning	LSX	Marion, Monroe, Ralls, Shelby	51 min
Mar 12, 11:24 AM CST	Tornado Warning	LSX	Marion, Ralls	36 min
Mar 12, 4:27 PM CST	Tornado Warning	LSX	Boone, Moniteau	48 min
Mar 12, 5:13 PM CST	Tornado Warning	LSX	Audrain, Boone, Callaway	47 min
Mar 12, 5:16 PM CST	Tornado Warning	LSX	Audrain, Boone, Monroe	29 min
Mar 12, 5:35 PM CST	Tornado Warning	LSX	Audrain, Monroe, Pike, Ralls	55 min
Mar 12, 5:54 PM CST	Tornado Warning	LSX	Audrain, Lincoln, Montgomery, Pike	66 min

Nearby

Tornado Warnings in Missouri, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.