Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 8, NWS St. Louis, MO

February 28, 20115 counties in Illinois

NWS St. Louis, MO issued this tornado warning at Feb 28, 2011, 12:07 AM CST for 5 counties in Illinois. It was in force for 38 min. 5 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: Feb 28, 2011, 12:07 AM CST (06:07 UTC)
Expired: Feb 28, 2011, 12:45 AM CST
In force: 38 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), 125 km from the middle of the area, began a volume at 06:07 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
Feb 28, 12:20 AM CST	TORNADO	Shobonier, IL	CITIZENS REPORT OF TORNADO DAMAGE TO TWO HOMES...NO INJURIES.
Feb 28, 12:25 AM CST	TSTM WND GST 53	Alma, IL
Feb 28, 12:30 AM CST	TSTM WND DMG	Central City, IL	POWER FLASHES SEEN...POWER LINES DOWN...MEDIUM SIZED LIMBS DOWN
Feb 28, 12:30 AM CST	TSTM WND GST 60	3 N Brownstown, IL	WIND GUSTS OF AT LEAST 60 MPH.
Feb 28, 12:35 AM CST	TSTM WND DMG	St. Elmo, IL	DAMAGE TO A ROOF...UNOCCUPIED MOBILE HOME BLOWN OVER AND PORCH MISSING FROM HOUSE.

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
Feb 27, 9:40 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 6.1 hours before the alert went out and 158 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: 124 J/kg
Mixed-layer CIN: -220 J/kg
Mixed-layer LCL: 494 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 210 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

370 
WFUS53 KLSX 280607
TORLSX
ILC005-027-051-121-189-280645-
/O.NEW.KLSX.TO.W.0008.110228T0607Z-110228T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1207 AM CST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 1245 AM CST

* AT 1205 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE SQUALL LINE CAPABLE OF PRODUCING BRIEF RAIN-WRAPPED
  TORNADOES IN ADDITION TO WIDESPREAD STRAIGHT LINE WIND DAMAGE.
  THESE DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
  WOBURN TO BECKEMEYER TO LIVELY GROVE...AND MOVING EAST AT 70 MPH.

* LOCATIONS IMPACTED INCLUDE...
  VANDALIA...CENTRALIA...SALEM...TAMALCO...MULBERRY GROVE...
  BOULDER...SHATTUC...FAIRMAN...SHOBONIER...PATOKA...SANDOVAL...
  CENTRAL CITY...WAMAC...ODIN...BROWNSTOWN...ST. ELMO...KINMUNDY...
  FARINA...OMEGA AND STEPHEN FORBES STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR 
THE TORNADO. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. 
TAKE COVER NOW.

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 3847 8940 3901 8929 3910 8880 3892 8881
      3892 8869 3848 8870
TIME...MOT...LOC 0607Z 262DEG 59KT 3899 8937 3865 8939
          3835 8952

$$

CVKING

3 follow-up statements

802 
WWUS53 KLSX 280618
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1218 AM CST MON FEB 28 2011

ILC005-027-051-121-189-280645-
/O.CON.KLSX.TO.W.0008.000000T0000Z-110228T0645Z/
WASHINGTON IL-CLINTON IL-MARION IL-BOND IL-FAYETTE IL-
1218 AM CST MON FEB 28 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN FAYETTE...EASTERN
BOND...MARION...EASTERN CLINTON AND NORTHEASTERN WASHINGTON COUNTIES
UNTIL 1245 AM CST...

AT 1214 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS
AND BRIEF RAIN-WRAPPED TORNADOES.  THESE DANGEROUS STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM VAN BURENSBURG TO BOULDER TO
NASHVILLE...MOVING EAST AT 70 MPH.

THE STRONGEST CIRCULATION ON RADAR...AND POSSIBLE TORNADO IS NEAR 
POSEY AND MOVING EAST AT 70 MPH. THIS TORNADO WILL BE MOVING TOWARD 
CENTRALIA AND WAMAC.  TAKE SHELTER NOW!

LOCATIONS IMPACTED INCLUDE...
  VANDALIA...CENTRALIA...SALEM...FAIRMAN...SHOBONIER...PATOKA...
  SANDOVAL...CENTRAL CITY...WAMAC...ODIN...BROWNSTOWN...ST. ELMO...
  KINMUNDY...FARINA...OMEGA...STEPHEN FORBES STATE PARK...HELM...
  VERNON...JUNCTION CITY AND TONTI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 3847 8940 3901 8929 3910 8880 3892 8881
      3892 8869 3848 8870
TIME...MOT...LOC 0618Z 262DEG 59KT 3901 8914 3867 8916
          3837 8929

$$

CVKING

044 
WWUS53 KLSX 280628
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1228 AM CST MON FEB 28 2011

ILC005-027-189-280637-
/O.CAN.KLSX.TO.W.0008.000000T0000Z-110228T0645Z/
WASHINGTON IL-CLINTON IL-BOND IL-
1228 AM CST MON FEB 28 2011

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

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED EAST OF THE 
WARNED AREA.

LAT...LON 3847 8914 3903 8915 3910 8880 3892 8881
      3892 8869 3848 8870
TIME...MOT...LOC 0627Z 262DEG 59KT 3903 8892 3850 8904

$$

ILC051-121-280645-
/O.CON.KLSX.TO.W.0008.000000T0000Z-110228T0645Z/
MARION IL-FAYETTE IL-
1228 AM CST MON FEB 28 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN FAYETTE AND
MARION COUNTIES UNTIL 1245 AM CST...

AT 1223 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS
AND BRIEF RAIN-WRAPPED TORNADOES.  THESE DANGEROUS STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM BROWNSTOWN TO WAMAC...MOVING EAST
AT 70 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR 
THE TORNADO. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. 
TAKE COVER NOW.

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 3847 8914 3903 8915 3910 8880 3892 8881
      3892 8869 3848 8870
TIME...MOT...LOC 0627Z 262DEG 59KT 3903 8892 3850 8904

$$

CVKING

325 
WWUS53 KLSX 280639
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1239 AM CST MON FEB 28 2011

ILC051-121-280645-
/O.CON.KLSX.TO.W.0008.000000T0000Z-110228T0645Z/
MARION IL-FAYETTE IL-
1239 AM CST MON FEB 28 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN FAYETTE AND
EASTERN MARION COUNTIES UNTIL 1245 AM CST...

AT 1235 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS
AND BRIEF RAIN-WRAPPED TORNADOES.  THESE DANGEROUS STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 6 MILES NORTH OF FARINA TO 9
MILES EAST OF CENTRALIA...MOVING EAST AT 60 MPH.

REPORTS OF WIND DAMAGE AND POSSIBLE TORNADOES CONTINUE TO BE RELAYED 
TO THE NATIONAL WEATHER SERVICE. THIS IS A DANGEROUS STORM...TAKE 
SHELTER NOW!


LOCATIONS IMPACTED INCLUDE...
  OMEGA...STEPHEN FORBES STATE PARK...HELM...LA CLEDE AND IUKA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR 
THE TORNADO. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. 
TAKE COVER NOW.

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 3848 8905 3892 8881 3892 8869 3848 8870
TIME...MOT...LOC 0637Z 261DEG 52KT 3892 8875 3850 8893

$$

CVKING

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 27, 6:26 PM CST	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	49 min
Feb 27, 7:38 PM CST	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	37 min
Feb 27, 8:02 PM CST	Tornado Warning	LSX	Pike	28 min
Feb 27, 8:14 PM CST	Severe Thunderstorm Warning	LSX	Brown	16 min
Feb 27, 8:25 PM CST	Severe Thunderstorm Warning	LSX	Calhoun, Pike	35 min
Feb 27, 9:50 PM CST	Severe Thunderstorm Warning	LSX	Adams, Pike	40 min
Feb 27, 10:30 PM CST	Severe Thunderstorm Warning	LSX	Pike	18 min
Feb 27, 10:47 PM CST	Tornado Warning	LSX	Monroe, Saint Clair	43 min
Feb 27, 11:18 PM CST	Tornado Warning	LSX	Madison, Monroe, Saint Clair	42 min
Feb 27, 11:43 PM CST	Tornado Warning	LSX	Bond, Clinton, Fayette, Madison, Saint Clair, Washington	47 min
Feb 28, 12:23 AM CST	Severe Thunderstorm Warning	LSX	Randolph	52 min
Feb 28, 2:19 AM CST	River Flood Warning	LSX	Jersey	4 days
Feb 28, 6:46 AM CST	River Flood Warning	LSX	Pike	29 hr
Feb 28, 6:46 AM CST	River Flood Warning	LSX	Pike	38 hr
Feb 28, 6:46 AM CST	River Flood Warning	LSX	Calhoun	52 hr
Feb 28, 11:14 AM CST	River Flood Warning	LSX	Morgan, Pike	17 days
Feb 28, 11:43 AM CST	River Flood Warning	LSX	Calhoun	47 hr

Nearby

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