Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 39, NWS St. Louis, MO

April 19, 20115 counties in Illinois

NWS St. Louis, MO issued this tornado warning at Apr 19, 2011, 8:33 PM CDT for 5 counties in Illinois. It was in force for 57 min. 6 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
Apr 19, 2011, 8:33 PM CDT (01:33 UTC)
Expired
Apr 19, 2011, 9:30 PM CDT
In force
57 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon

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

The radar

The Evansville,IN radar (KVWX), 120 km from the middle of the area, began a volume at 01:36 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

TimeReportWhereRemark
Apr 19, 8:59 PM CDTTSTM WND DMGCentralia, ILSEMI BLOWN OVER ON INTERSTATE 57 AT THE CENTRALIA EXIT
Apr 19, 9:02 PM CDTTSTM WND GST 773 Nw Walnut Hill, ILSUSTAINED 44 KNOTS
Apr 19, 9:10 PM CDTTSTM WND GST 462 N Centralia, IL
Apr 19, 9:19 PM CDTTSTM WND DMGCentralia, ILNUMEROUS TREES AND POWER LINES DOWN MAINLY IN THE EASTERN PORTION OF CENTRALIA
Apr 19, 9:20 PM CDTTSTM WND DMGSalem, ILSCATTERED TREES AND POWER LINES DOWN
Apr 19, 9:40 PM CDTTSTM WND DMGCentralia, ILSHEDS...BARNS AND MOBILE HOMES DAMAGED

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.

IssuedProductOfficeLasted
Apr 19, 1:00 PM CDTTornado WatchSPC10 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.6 hours before the alert went out and 164 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 00:00Z on 2011-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2409 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, Lincoln, IL at 00:00Z on 2011-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 370 square meters per square second.19395878Sfc1 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
2409 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
523 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
370 m²/s²
0-3 km storm-relative helicity
547 m²/s²
Significant tornado parameter
0.0
Supercell composite
24.4

Open this sounding in Storm Lab

The text

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

039 
WFUS53 KLSX 200133 RRA
TORLSX
ILC005-027-051-121-189-200230-
/O.NEW.KLSX.TO.W.0039.110420T0133Z-110420T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
833 PM CDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 930 PM CDT

* AT 831 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR ST. ROSE...OR 5 MILES NORTHEAST OF BREESE...
  AND MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CARLYLE...CENTRALIA...SALEM...BEAVER CREEK...TAMALCO...WAMAC...
  SHATTUC...BOULDER...CENTRAL CITY...SANDOVAL...FAIRMAN...ODIN...
  PATOKA...KINMUNDY...HELM...OMEGA...STEPHEN FORBES STATE PARK...
  FARINA...HOFFMAN AND HUEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3848 8870 3848 8953 3872 8960 3895 8881
      3892 8880 3892 8870
TIME...MOT...LOC 0134Z 249DEG 43KT 3869 8943

$$

GLASS
5 follow-up statements
421 
WWUS53 KLSX 200145
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
845 PM CDT TUE APR 19 2011

ILC005-027-051-121-189-200230-
/O.CON.KLSX.TO.W.0039.000000T0000Z-110420T0230Z/
WASHINGTON IL-CLINTON IL-MARION IL-BOND IL-FAYETTE IL-
845 PM CDT TUE APR 19 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN FAYETTE...
SOUTHEASTERN BOND...MARION...CLINTON AND EXTREME NORTHEASTERN
WASHINGTON COUNTIES UNTIL 930 PM CDT...

AT 844 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR TAMALCO...OR 8 MILES NORTH OF CARLYLE...MOVING
NORTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  CENTRALIA...SALEM...TAMALCO...WAMAC...SHATTUC...BOULDER...CENTRAL
  CITY...SANDOVAL...FAIRMAN...ODIN...PATOKA...HELM...KINMUNDY...
  OMEGA...STEPHEN FORBES STATE PARK...FARINA...KEYESPORT...JUNCTION
  CITY...SELMAVILLE AND VERNON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3848 8870 3848 8953 3872 8960 3895 8881
      3892 8880 3892 8870
TIME...MOT...LOC 0146Z 247DEG 35KT 3873 8931

$$

GLASS
685 
WWUS53 KLSX 200201
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
901 PM CDT TUE APR 19 2011

ILC005-189-200210-
/O.CAN.KLSX.TO.W.0039.000000T0000Z-110420T0230Z/
WASHINGTON IL-BOND IL-
901 PM CDT TUE APR 19 2011

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

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

LAT...LON 3850 8914 3850 8915 3850 8918 3851 8922
      3851 8934 3874 8927 3874 8926 3882 8925
      3895 8881 3892 8880 3892 8870 3848 8870
TIME...MOT...LOC 0200Z 242DEG 55KT 3859 8904

$$

ILC027-051-121-200230-
/O.CON.KLSX.TO.W.0039.000000T0000Z-110420T0230Z/
CLINTON IL-MARION IL-FAYETTE IL-
901 PM CDT TUE APR 19 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN FAYETTE...MARION
AND EASTERN CLINTON COUNTIES UNTIL 930 PM CDT...

AT 857 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR CENTRAL CITY...OR NEAR CENTRALIA...MOVING
NORTHEAST AT 65 MPH.

IN ADDITION...DAMAGING WINDS TO 70 MPH WILL ALSO OCCUR WITH THIS 
STORM.  A TRACTOR TRAILER WAS BLOWN OVER ALONG INTERSTATE 57 AT THE 
CENTRALIA EXIT.

LOCATIONS IMPACTED INCLUDE...
  SALEM...PATOKA...HELM...KINMUNDY...OMEGA...STEPHEN FORBES STATE
  PARK...FARINA...SELMAVILLE...KELL...VERNON...CARTTER...TONTI...
  ALMA...BRUBAKER...ST. PAUL...IUKA...ST. PETER...LOOGOOTEE AND LA
  CLEDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3850 8914 3850 8915 3850 8918 3851 8922
      3851 8934 3874 8927 3874 8926 3882 8925
      3895 8881 3892 8880 3892 8870 3848 8870
TIME...MOT...LOC 0200Z 242DEG 55KT 3859 8904

$$

GLASS
722 
WWUS53 KLSX 200206
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
906 PM CDT TUE APR 19 2011

ILC027-200216-
/O.CAN.KLSX.TO.W.0039.000000T0000Z-110420T0230Z/
CLINTON IL-
906 PM CDT TUE APR 19 2011

...THE TORNADO WARNING FOR EASTERN CLINTON COUNTY IS CANCELLED...

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

LAT...LON 3850 8914 3851 8915 3874 8914 3874 8915
      3882 8914 3895 8881 3892 8880 3892 8870
      3848 8870
TIME...MOT...LOC 0206Z 242DEG 55KT 3863 8894

$$

ILC051-121-200230-
/O.CON.KLSX.TO.W.0039.000000T0000Z-110420T0230Z/
MARION IL-FAYETTE IL-
906 PM CDT TUE APR 19 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN FAYETTE AND
MARION COUNTIES UNTIL 930 PM CDT...

AT 901 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR ODIN...OR NEAR SALEM...MOVING NORTHEAST AT 65
MPH.

IN ADDITION...DAMAGING WINDS OF 77 MPH WERE MEASURED AT THE 
CENTRALIA AIRPORT AT 900 PM.

LOCATIONS IMPACTED INCLUDE...
  HELM...KINMUNDY...OMEGA...STEPHEN FORBES STATE PARK...FARINA...
  ALMA...BRUBAKER...ST. PAUL...IUKA...ST. PETER...LOOGOOTEE AND LA
  CLEDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3850 8914 3851 8915 3874 8914 3874 8915
      3882 8914 3895 8881 3892 8880 3892 8870
      3848 8870
TIME...MOT...LOC 0206Z 242DEG 55KT 3863 8894

$$

GLASS
924 
WWUS53 KLSX 200218
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
918 PM CDT TUE APR 19 2011

ILC051-121-200230-
/O.CON.KLSX.TO.W.0039.000000T0000Z-110420T0230Z/
MARION IL-FAYETTE IL-
918 PM CDT TUE APR 19 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN FAYETTE AND
MARION COUNTIES UNTIL 930 PM CDT...

AT 914 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR OMEGA...OR 10 MILES EAST OF SALEM...MOVING
NORTHEAST AT 75 MPH.

IN ADDITION...DAMAGING WINDS UP TO 77 MPH HAVE OCCURRED WITH THIS 
STORM.

LOCATIONS IMPACTED INCLUDE...
  LA CLEDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3848 8870 3848 8874 3849 8897 3867 8905
      3873 8903 3881 8901 3895 8881 3892 8880
      3892 8870
TIME...MOT...LOC 0218Z 236DEG 65KT 3871 8870

$$

GLASS
672 
WWUS53 KLSX 200227
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
927 PM CDT TUE APR 19 2011

ILC051-121-200238-
/O.EXP.KLSX.TO.W.0039.000000T0000Z-110420T0230Z/
MARION IL-FAYETTE IL-
927 PM CDT TUE APR 19 2011

...THE TORNADO WARNING FOR SOUTHEASTERN FAYETTE AND MARION COUNTIES
WILL EXPIRE AT 930 PM CDT...

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

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 900 PM.

LAT...LON 3848 8870 3848 8874 3849 8897 3867 8905
      3873 8903 3881 8901 3895 8881 3892 8880
      3892 8870
TIME...MOT...LOC 0228Z 236DEG 65KT 3881 8851

$$

GLASS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 7:30 PM CDTTornado WarningLSXMadison, Saint Clair45 min
Apr 19, 7:34 PM CDTTornado WarningLSXRandolph41 min
Apr 19, 7:35 PM CDTSevere Thunderstorm WarningLSXFayette, Montgomery40 min
Apr 19, 7:37 PM CDTTornado WarningLSXMonroe36 min
Apr 19, 7:51 PM CDTTornado WarningLSXSaint Clair39 min
Apr 19, 7:54 PM CDTTornado WarningLSXRandolph36 min
Apr 19, 7:56 PM CDTSevere Thunderstorm WarningLSXBond, Montgomery34 min
Apr 19, 8:00 PM CDTTornado WarningLSXBond, Clinton, Madison45 min
Apr 19, 8:02 PM CDTAreal Flood AdvisoryLSXBond, Macoupin, Montgomery4 hr
Apr 19, 8:18 PM CDTTornado WarningLSXRandolph, Saint Clair, Washington42 min
Apr 19, 8:25 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Madison, Saint Clair22 min
Apr 19, 8:33 PM CDTTornado WarningLSXFayette42 min
Apr 19, 9:37 PM CDTSevere Thunderstorm WarningLSXMadison21 min
Apr 19, 9:41 PM CDTRiver Flood WarningLSXFayette13 days

Nearby

Tornado Warnings in Illinois, 2011Every tornado warning in 2011Tornadoes in 2011

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.