Alert archive / Illinois / Tornado Warnings in 2007

Tornado Warning 33, NWS St. Louis, MO

October 18, 20074 counties in Illinois

NWS St. Louis, MO issued this tornado warning at Oct 18, 2007, 5:31 PM CDT for 4 counties in Illinois. It was in force for 44 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
Oct 18, 2007, 5:31 PM CDT (22:31 UTC)
Expired
Oct 18, 2007, 6:15 PM CDT
In force
44 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon

Counties Bond County, IL, Clinton County, IL, Fayette County, IL, Marion County, IL

The radar

The Evansville,IN radar (KVWX), 129 km from the middle of the area, began a volume at 22:45 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
Oct 18, 3:23 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.5 hours before the alert went out and 145 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 2007-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2007-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 square meters per square second.1939587897117Sfc1 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
44 J/kg
Mixed-layer CIN
-272 J/kg
Mixed-layer LCL
1498 m above ground
0-6 km bulk shear
84 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
260 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 182231
TORLSX
ILC005-027-051-121-182315-
/O.NEW.KLSX.TO.W.0033.071018T2231Z-071018T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
531 PM CDT THU OCT 18 2007

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BOND COUNTY IN SOUTH CENTRAL ILLINOIS
  NORTHEASTERN CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS
  SOUTHERN FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS
  NORTHWESTERN MARION COUNTY IN SOUTH CENTRAL ILLINOIS

* UNTIL 615 PM CDT

* AT 528 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR BEAVER CREEK...OR
  ABOUT 9 MILES NORTH OF CARLYLE...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PATOKA...
  SHOBONIER...
  BROWNSTOWN...
  ST. ELMO...

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.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

LAT...LON 3864 8936 3876 8947 3910 8881 3903 8879
      3903 8880 3893 8880 3892 8875 3885 8872
TIME...MOT...LOC 2231Z 235DEG 39KT 3877 8932

$$

CARNEY
2 follow-up statements
000 
WWUS53 KLSX 182251
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
551 PM CDT THU OCT 18 2007

ILC005-027-182301-
/O.CAN.KLSX.TO.W.0033.000000T0000Z-071018T2315Z/
CLINTON IL-BOND IL-
551 PM CDT THU OCT 18 2007

...THE TORNADO WARNING FOR SOUTHEASTERN BOND AND NORTHEASTERN CLINTON
COUNTIES IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM.

LAT...LON 3885 8872 3873 8915 3874 8915 3874 8917
      3881 8927 3910 8882 3903 8879 3903 8880
      3893 8880 3892 8875
TIME...MOT...LOC 2251Z 244DEG 50KT 3891 8896

$$

ILC051-121-182315-
/O.CON.KLSX.TO.W.0033.000000T0000Z-071018T2315Z/
MARION IL-FAYETTE IL-
551 PM CDT THU OCT 18 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR SOUTHERN
FAYETTE AND NORTHWESTERN MARION COUNTIES...

AT 549 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR ST. PAUL...OR ABOUT
8 MILES SOUTHEAST OF VANDALIA...MOVING NORTHEAST AT 55 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...LOOGOOTEE...ST.
JAMES AND ST. ELMO.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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 3885 8872 3873 8915 3874 8915 3874 8917
      3881 8927 3910 8882 3903 8879 3903 8880
      3893 8880 3892 8875
TIME...MOT...LOC 2251Z 244DEG 50KT 3891 8896

$$

CARNEY
000 
WWUS53 KLSX 182312
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
612 PM CDT THU OCT 18 2007

ILC051-121-182322-
/O.EXP.KLSX.TO.W.0033.000000T0000Z-071018T2315Z/
MARION IL-FAYETTE IL-
612 PM CDT THU OCT 18 2007

...THE TORNADO WARNING FOR SOUTHERN FAYETTE AND NORTHWESTERN MARION
COUNTIES EXPIRES AT 615 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM...ADDITIONAL SEVERE 
THUNDERSTORM DEVELOPMENT IS POSSIBLE THIS EVENING.

LAT...LON 3885 8872 3873 8915 3874 8915 3874 8917
      3881 8927 3910 8882 3903 8879 3903 8880
      3893 8880 3892 8875
TIME...MOT...LOC 2312Z 181DEG 34KT 3907 8878

$$

CARNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 12:30 AM CDTSevere Thunderstorm WarningLSXAdams, Calhoun, Pike45 min
Oct 18, 1:12 AM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Jersey, Pike63 min
Oct 18, 1:14 AM CDTSevere Thunderstorm WarningLSXMadison, Monroe, Saint Clair61 min
Oct 18, 2:05 AM CDTSevere Thunderstorm WarningLSXMacoupin, Montgomery40 min
Oct 18, 4:23 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Madison, Saint Clair37 min
Oct 18, 4:55 PM CDTSevere Thunderstorm WarningLSXBond, Fayette, Madison, Montgomery50 min
Oct 18, 5:05 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Fayette, Madison, Marion, Saint Clair40 min
Oct 18, 5:06 PM CDTSevere Thunderstorm WarningLSXRandolph, Washington24 min
Oct 18, 5:11 PM CDTSevere Thunderstorm WarningLSXRandolph19 min
Oct 18, 5:22 PM CDTTornado WarningLSXBond, Fayette38 min

Nearby

Tornado Warnings in Illinois, 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.