Alert archive / Missouri / Tornado Warnings in 2006

Tornado Warning 21, NWS St. Louis, MO

March 11, 2006Sainte Genevieve County, Missouri; Randolph County, Illinois

NWS St. Louis, MO issued this tornado warning at Mar 11, 2006, 9:39 PM CST for Sainte Genevieve County, Missouri; Randolph County, Illinois. It was in force for 51 min. 9 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: Mar 11, 2006, 9:39 PM CST (03:39 UTC)
Expired: Mar 11, 2006, 10:30 PM CST
In force: 51 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Randolph County, IL, Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 114 km from the middle of the area, began a volume at 03:40 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
Mar 11, 9:42 PM CST	TORNADO	St. Mary, MO	LARGE TORNADO ON THE GROUND
Mar 11, 9:44 PM CST	TORNADO	1 S St. Mary, MO	* 2 FATAL * TORNADO ON THE GROUND ON HWY 61 AND COUNTY ROAD 910...CAUSING MAJOR DAMAGE...POWER LINES DOWN...STRUCTURAL DAMAGE.
Mar 11, 9:44 PM CST	TORNADO	1 S St. Mary, MO	TORNADO ON THE GROUND ON HWY 61 AND COUNTY ROAD 910...CAUSING MAJOR DAMAGE...POWER LINES DOWN...STRUCTURAL DAMAGE...NO REPORTS OF INJURIES
Mar 11, 9:44 PM CST	TORNADO	2 S St. Mary, MO	REPORTS OF NUMEROUS INJURIES...PEOPLE WERE STILL TRAPPED IN THE DEBRIS OF DESTROYED MOBILE HOMES.
Mar 11, 10:00 PM CST	FUNNEL CLOUD	1 N Chester, IL
Mar 11, 10:00 PM CST	HAIL 0.75	Blair, IL
Mar 11, 10:00 PM CST	TORNADO	Bremen, IL	ALONG ROUTE 150 FROM BREMEN TO STEELEVILLE - NUMERMOUS TREES AND POWER LINES DOWN...BARNS DESTROYED...SEVERAL HOMES DAMAGED...POSSIBLE INJURIES
Mar 11, 10:00 PM CST	TORNADO	Bremen, IL	MEDIA REPORTS A POSSIBLE TORANDO
Mar 11, 10:13 PM CST	TORNADO	2 N Percy, IL	REPORTED ON THE GROUND

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
Mar 11, 2:22 PM CST	Tornado Watch	SPC	8 hr
Mar 11, 6:49 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.7 hours before the alert went out and 273 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: 789 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 708 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 201 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 120339
TORLSX
ILC157-MOC186-120430-
/O.NEW.KLSX.TO.W.0021.060312T0339Z-060312T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
939 PM CST SAT MAR 11 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI
  EASTERN RANDOLPH COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 1030 PM CST

* AT 935 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 5 MILES SOUTHWEST OF ST.
  MARY...MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CHESTER...
  BREMEN...
  STEELEVILLE...
  PERCY...
  SPARTA...
  COULTERVILLE...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL 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 SATURDAY EVENING
FOR SOUTHWESTERN ILLINOIS AND EASTERN MISSOURI. A TORNADO WATCH ALSO
REMAINS IN EFFECT UNTIL 200 AM CST SUNDAY MORNING FOR SOUTHWESTERN
ILLINOIS AND SOUTHEASTERN MISSOURI.

LAT...LON 3783 9013 3774 9005 3788 8989 3788 8980
      3783 8970 3795 8961 3825 8957

$$

CARNEY

3 follow-up statements

000 
WWUS53 KLSX 120345
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
944 PM CST SAT MAR 11 2006

ILC157-MOC186-120430-
/O.CON.KLSX.TO.W.0021.000000T0000Z-060312T0430Z/
RANDOLPH IL-STE. GENEVIEVE MO-
944 PM CST SAT MAR 11 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CST FOR EASTERN
STE. GENEVIEVE AND EASTERN RANDOLPH COUNTIES...

AT 940 PM CST...TRAINED WEATHER SPOTTERS REPORTED A LARGE AND 
DANGEROUS TORNADO OVER ST. MARY...MOVING NORTHEAST AT 35 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...
CHESTER...BREMEN...NEW PALESTINE...WELGE...BLAIR...STEELEVILLE...
PERCY...EDEN AND COULTERVILLE.

THIS IS A VERY DANGEROUS SITUATION SEEK SHELTER IMMEDIATELY

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER 
A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS 
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN 
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS 
TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

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

LAT...LON 3783 9013 3774 9005 3788 8989 3788 8980
      3783 8970 3795 8961 3825 8957

$$

CARNEY

000 
WWUS53 KLSX 120356
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
954 PM CST SAT MAR 11 2006

MOC186-120404-
/O.CAN.KLSX.TO.W.0021.000000T0000Z-060312T0430Z/
STE. GENEVIEVE MO-
954 PM CST SAT MAR 11 2006

...THE TORNADO WARNING FOR STE. GENEVIEVE COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY.

LAT...LON 3794 8996 3788 8989 3788 8989 3788 8980
      3783 8970 3795 8961 3825 8957

$$

ILC157-120430-
/O.CON.KLSX.TO.W.0021.000000T0000Z-060312T0430Z/
RANDOLPH IL-
954 PM CST SAT MAR 11 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CST FOR EASTERN
RANDOLPH COUNTY...

AT 950 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A DANGEROUS SEVERE THUNDERSTORM WHICH HAS HAD A HISTORY OF 
PRODUCING TORNADOES OVER CHESTER...MOVING NORTHEAST AT 35 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...
BREMEN...WELGE...BLAIR...STEELEVILLE...PERCY...EDEN AND COULTERVILLE.

THIS IS A VERY DANGEROUS AND POTENTIALLY DEADLY STORM IF YOU ARE IN 
ITS PATH SEEK STURDY SHELTER IMMEDIATELY

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

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

LAT...LON 3794 8996 3788 8989 3788 8989 3788 8980
      3783 8970 3795 8961 3825 8957

$$

CARNEY

000 
WWUS53 KLSX 120404
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1003 PM CST SAT MAR 11 2006

ILC157-120430-
/O.CON.KLSX.TO.W.0021.000000T0000Z-060312T0430Z/
RANDOLPH IL-
1003 PM CST SAT MAR 11 2006

...EXTREMELY DANGEROUS TORNADIC STORM MOVING THROUGH RANDOLPH 
COUNTY...

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CST FOR EASTERN
RANDOLPH COUNTY...

AT 1000 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO OVER BREMEN...MOVING NORTHEAST AT 40 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...
PERCY...EDEN...STEELEVILLE...PERCY AND COULTERVILLE.

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES...SEEK SHELTER 
IMMEDIATELY

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

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

LAT...LON 3794 8996 3788 8989 3788 8989 3788 8980
      3783 8970 3795 8961 3825 8957

$$

CARNEY/RP

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, 9:43 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, 4:29 PM CST	Tornado Warning	LSX	Audrain, Boone	46 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
Mar 11, 8:14 PM CST	Severe Thunderstorm Warning	LSX	Montgomery	21 min
Mar 11, 9:42 PM CST	Tornado Warning	LSX	Monroe	39 min
Mar 11, 10:13 PM CST	Tornado Warning	LSX	Washington	62 min
Mar 11, 10:30 PM CST	Severe Thunderstorm Warning	LSX	Randolph	60 min
Mar 11, 10:54 PM CST	Severe Thunderstorm Warning	LSX	Marion	41 min
Mar 11, 11:11 PM CST	Tornado Warning	LSX	Randolph	28 min
Mar 11, 11:30 PM CST	Severe Thunderstorm Warning	LSX	Washington	38 min
Mar 11, 11:37 PM CST	Severe Thunderstorm Warning	LSX	Monroe	15 min
Mar 12, 12:59 AM CST	Severe Thunderstorm Warning	LSX	Monroe	19 min
Mar 12, 1:03 AM CST	Severe Thunderstorm Warning	LSX	Randolph	20 min
Mar 12, 1:57 AM CST	Flash Flood Warning	LSX	Clinton, Marion, Washington	6 hr
Mar 12, 11:51 AM CST	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	39 min

Nearby

Tornado Warnings in Missouri, 2006 Tornado Warnings in Illinois, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.