Alert archive / Missouri / Tornado Warnings in 2006

Tornado Warning 92, NWS St. Louis, MO

July 19, 2006Jefferson County, Saint Francois County, Missouri

NWS St. Louis, MO issued this tornado warning at Jul 19, 2006, 8:36 PM CDT for Jefferson County, Saint Francois County, Missouri. It was in force for 24 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: Jul 19, 2006, 8:36 PM CDT (01:36 UTC)
Expired: Jul 19, 2006, 9:00 PM CDT
In force: 24 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Jefferson County, MO, Saint Francois County, MO

The radar

The St Louis radar (KLSX), 77 km from the middle of the area, began a volume at 01:39 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 19, 8:45 PM CDT	TSTM WND DMG	Bonne Terre, MO	NUMEROUS TREES AND POWER LINES DOWN IN THE BONNE TERRE AND LEADWOOD AREAS - OCCURRED BETWEEN 840 AND 850 PM
Jul 19, 8:50 PM CDT	HAIL 0.75	Desloge, MO

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
Jul 19, 5:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.6 hours before the alert went out and 286 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: 4 J/kg
Mixed-layer CIN: -795 J/kg
Mixed-layer LCL: 2889 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -101 m²/s²
0-3 km storm-relative helicity: 15 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.

000 
WFUS53 KLSX 200135
TORLSX
MOC099-187-200215-
/O.NEW.KLSX.TO.W.0092.060720T0136Z-060720T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
836 PM CDT WED JUL 19 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI
  NORTHERN ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI

* UNTIL 915 PM CDT

* AT 834 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR OLYMPIAN VILLAGE...OR
  ABOUT NEAR DE SOTO...MOVING SOUTH AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BONNE TERRE...
  DESLOGE...
  LEADWOOD...

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
WEDNESDAY EVENING FOR SOUTHWESTERN ILLINOIS AND EASTERN MISSOURI.

LAT...LON 3822 9041 3817 9063 3786 9063 3785 9043
      3788 9045 3798 9035

$$

CARNEY

1 follow-up statement

000 
WWUS53 KLSX 200200
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
900 PM CDT WED JUL 19 2006

MOC099-187-200210-
/O.CAN.KLSX.TO.W.0092.000000T0000Z-060720T0215Z/
ST. FRANCOIS MO-JEFFERSON MO-
900 PM CDT WED JUL 19 2006

...THE TORNADO WARNING FOR SOUTHERN JEFFERSON AND NORTHERN ST.
FRANCOIS COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER 
APPEARS LIKELY PRODUCE A TORNADO.  A SEVERE THUNDERSTORM WARNING 
REMAINS IN EFFECT UNTIL 930 PM FOR ST. FRANCOIS COUNTY.

LAT...LON 3822 9041 3817 9063 3786 9063 3785 9043
      3788 9045 3798 9035

$$
CARNEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 7:10 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Warren	65 min
Jul 19, 7:26 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis, City of Saint Louis	34 min
Jul 19, 7:41 PM CDT	Tornado Warning	LSX	Jefferson, Saint Louis	34 min
Jul 19, 7:59 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	22 min
Jul 19, 8:09 PM CDT	Severe Thunderstorm Warning	LSX	Washington	66 min
Jul 19, 8:13 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson	47 min
Jul 19, 8:29 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	61 min
Jul 19, 8:56 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Iron, Madison, Reynolds	64 min
Jul 19, 9:28 PM CDT	Severe Thunderstorm Warning	LSX	Saint Francois	32 min
Jul 19, 9:55 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	50 min
Jul 20, 5:27 PM CDT	Severe Thunderstorm Warning	LSX	Crawford	48 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.