Alert archive / Illinois / Tornado Warnings in 2006

Tornado Warning 113, NWS St. Louis, MO

September 22, 2006Saint Clair County, Illinois

NWS St. Louis, MO issued this tornado warning at Sep 22, 2006, 6:01 PM CDT for Saint Clair County, Illinois. It was in force for 24 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 22, 2006, 6:01 PM CDT (23:01 UTC)
Expired
Sep 22, 2006, 6:25 PM CDT
In force
24 min
Issued by
NWS St. Louis, MO
Area
Counties, with a storm outline in the text

County Saint Clair County, IL

The radar

The St Louis radar (KLSX), 79 km from the middle of the area, began a volume at 23:02 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.

IssuedProductOfficeLasted
Sep 22, 1:16 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.0 hours before the alert went out and 234 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, Lincoln, IL at 12:00Z on 2006-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Lincoln, IL at 12:00Z on 2006-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 571 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
831 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
571 m²/s²
0-3 km storm-relative helicity
612 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 222302
TORLSX
ILC163-222345-
/O.NEW.KLSX.TO.W.0113.060922T2301Z-060922T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
601 PM CDT FRI SEP 22 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 645 PM CDT

* AT 557 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 11 MILES SOUTHWEST OF NEW
  ATHENS...OR ABOUT NEAR RED BUD...MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEW ATHENS...
  MARISSA...
  LENZBURG...

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 TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
SOUTHWESTERN ILLINOIS AND EASTERN MISSOURI.

LAT...LON 3836 9008 3818 9001 3823 8972 3843 8971

$$

GKS
1 follow-up statement
000 
WWUS53 KLSX 222325
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
625 PM CDT FRI SEP 22 2006

ILC163-222335-
/O.CAN.KLSX.TO.W.0113.000000T0000Z-060922T2345Z/
ST. CLAIR IL-
625 PM CDT FRI SEP 22 2006

...THE TORNADO WARNING FOR SOUTHERN ST. CLAIR COUNTY IS
CANCELLED...

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

ADDITIONAL STRONG THUNDERSTORMS ARE POSSIBLE...AND A TORNADO WATCH 
REMAINS IN EFFECT UNTIL 9 PM.

LAT...LON 3836 9008 3818 9001 3823 8972 3843 8971

$$

GKS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 22, 4:03 PM CDTSevere Thunderstorm WarningLSXAdams, Brown42 min
Sep 22, 4:28 PM CDTSevere Thunderstorm WarningLSXWashington47 min
Sep 22, 4:37 PM CDTTornado WarningLSXWashington30 min
Sep 22, 4:47 PM CDTTornado WarningLSXPike28 min
Sep 22, 4:49 PM CDTTornado WarningLSXMonroe41 min
Sep 22, 5:09 PM CDTTornado WarningLSXBrown, Pike26 min
Sep 22, 5:11 PM CDTSevere Thunderstorm WarningLSXSaint Clair, Washington49 min
Sep 22, 5:14 PM CDTSevere Thunderstorm WarningLSXSaint Clair46 min
Sep 22, 5:28 PM CDTTornado WarningLSXMonroe47 min
Sep 22, 5:30 PM CDTTornado WarningLSXWashington45 min
Sep 22, 6:38 PM CDTSevere Thunderstorm WarningLSXWashington52 min
Sep 22, 6:39 PM CDTTornado WarningLSXWashington35 min

Nearby

Tornado Warnings in Illinois, 2006Every tornado warning in 2006Tornadoes 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.