Alert archive / Missouri / Tornado Warnings in 2007

Tornado Warning 20, NWS St. Louis, MO

September 6, 2007Iron County, Madison County, Missouri

NWS St. Louis, MO issued this tornado warning at Sep 6, 2007, 5:36 PM CDT for Iron County, Madison County, Missouri. It was in force for 39 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
Sep 6, 2007, 5:36 PM CDT (22:36 UTC)
Expired
Sep 6, 2007, 6:15 PM CDT
In force
39 min
Issued by
NWS St. Louis, MO
Area
Counties, with a storm outline in the text

Counties Iron County, MO, Madison County, MO

The radar

The St Louis radar (KLSX), 126 km from the middle of the area, began a volume at 22:38 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.6 hours before the alert went out and 306 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2007-09-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 780 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2007-09-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
780 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 062236
TORLSX
MOC093-123-062315-
/O.NEW.KLSX.TO.W.0020.070906T2236Z-070906T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
536 PM CDT THU SEP 6 2007

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN IRON COUNTY IN SOUTHEAST MISSOURI
  NORTHERN MADISON COUNTY IN SOUTHEAST MISSOURI

* UNTIL 615 PM CDT

* AT 533 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR GLOVER...OR ABOUT 5
  MILES SOUTH OF IRONTON...MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROSELLE...
  FREDERICKTOWN...
  JUNCTION CITY...

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.

LAT...LON 3763 9074 3765 9032 3764 9031 3764 9016
      3744 9016 3742 9074
TIME...MOT...LOC 2236Z 259DEG 21KT 3753 9065

$$

GLASS
2 follow-up statements
000 
WWUS53 KLSX 062251
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
551 PM CDT THU SEP 6 2007

MOC093-123-062315-
/O.CON.KLSX.TO.W.0020.000000T0000Z-070906T2315Z/
MADISON MO-IRON MO-
551 PM CDT THU SEP 6 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR EASTERN
IRON AND NORTHERN MADISON COUNTIES...

AT 547 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR ROSELLE...OR ABOUT
NEAR IRONTON...MOVING EAST AT 25 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...CATHERINE PLACE...
JUNCTION CITY...FREDERICKTOWN AND MINE LA MOTTE.

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.

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 3763 9074 3765 9032 3764 9031 3764 9016
      3744 9016 3742 9074
TIME...MOT...LOC 2251Z 266DEG 25KT 3757 9052

$$

GLASS
000 
WWUS53 KLSX 062318
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
616 PM CDT THU SEP 6 2007

MOC093-123-062326-
/O.EXP.KLSX.TO.W.0020.000000T0000Z-070906T2315Z/
MADISON MO-IRON MO-
616 PM CDT THU SEP 6 2007

...THE TORNADO WARNING FOR EASTERN IRON AND NORTHERN MADISON COUNTIES
EXPIRES AT 615 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER 
APPEARED TO BE SEVERE.  A STRONG THUNDERSTORM WILL CONTINUE TO MOVE 
EAST AT 20 MPH ACROSS NORTHERN MADISON COUNTY...PRODUCING GUSTY 
WINDS TO 45 MPH AND HEAVY RAIN.  TOWNS IN THE PATH OF THIS STRONG 
STORM INCLUDE FREDERICKTOWN AND MARQUAND.

LAT...LON 3763 9074 3765 9032 3764 9031 3764 9016
      3744 9016 3742 9074
TIME...MOT...LOC 2251Z 266DEG 25KT 3757 9052

$$

GLASS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 5:08 PM CDTSevere Thunderstorm WarningLSXReynolds52 min
Sep 6, 5:35 PM CDTTornado WarningLSXSainte Genevieve40 min
Sep 6, 6:00 PM CDTSevere Thunderstorm WarningLSXIron, Madison, Reynolds45 min

Nearby

Tornado Warnings in Missouri, 2007Every tornado warning in 2007Tornadoes in 2007

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.