Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 18, NWS Lincoln, IL

April 19, 20115 counties in Illinois

NWS Lincoln, IL issued this tornado warning at Apr 19, 2011, 7:00 PM CDT for 5 counties in Illinois. It was in force for 45 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
Apr 19, 2011, 7:00 PM CDT (00:00 UTC)
Expired
Apr 19, 2011, 7:45 PM CDT
In force
45 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon

Counties Coles County, IL, Douglas County, IL, Moultrie County, IL, Piatt County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 97 km from the middle of the area, began a volume at 00:02 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
Apr 19, 1:00 PM CDTTornado WatchSPC10 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.0 hours before the alert went out and 68 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°0°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.

938 
WFUS53 KILX 200000
TORILX
ILC029-041-139-147-173-200045-
/O.NEW.KILX.TO.W.0018.110420T0000Z-110420T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
700 PM CDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN COLES COUNTY IN EAST CENTRAL ILLINOIS...
  WESTERN DOUGLAS COUNTY IN EAST CENTRAL ILLINOIS...
  MOULTRIE COUNTY IN CENTRAL ILLINOIS...
  SOUTHEASTERN PIATT COUNTY IN CENTRAL ILLINOIS...
  CENTRAL SHELBY COUNTY IN CENTRAL ILLINOIS...

* UNTIL 745 PM CDT.

* AT 658 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED 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
  DALTON CITY TO FINDLAY TO TOWER HILL...AND MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHELBYVILLE...SULLIVAN...MATTOON...LOVINGTON...HAMMOND...
  ALLENVILLE...ATWOOD...ARTHUR...WINDSOR...COOKS MILL...KIRKSVILLE...
  EAGLE CREEK STATE PARK...WOLF CREEK STATE PARK...CLARKSBURG...
  CADWELL...GARRETT...COLES...STRASBURG...BOURBON AND CHESTERVILLE.

THIS INCLUDES INTERSTATE 57 BETWEEN MILE MARKERS 181 AND 187.

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.

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 3938 8832 3933 8883 3974 8878 3988 8833
TIME...MOT...LOC 0000Z 270DEG 50KT 3973 8870 3954 8873
          3935 8894

$$

CHURCHILL
2 follow-up statements
145 
WWUS53 KILX 200037
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
737 PM CDT TUE APR 19 2011

ILC147-200046-
/O.CAN.KILX.TO.W.0018.000000T0000Z-110420T0045Z/
PIATT IL-
737 PM CDT TUE APR 19 2011

...THE TORNADO WARNING FOR SOUTHEASTERN PIATT COUNTY IS CANCELLED...

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

LAT...LON 3938 8832 3935 8864 3979 8848 3979 8846
      3983 8846 3988 8833
TIME...MOT...LOC 0036Z 248DEG 34KT 3988 8829 3968 8833
          3944 8854

$$

ILC029-041-139-173-200045-
/O.CON.KILX.TO.W.0018.000000T0000Z-110420T0045Z/
MOULTRIE IL-SHELBY IL-COLES IL-DOUGLAS IL-
737 PM CDT TUE APR 19 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR WESTERN DOUGLAS...WESTERN
COLES...EAST CENTRAL SHELBY AND EASTERN MOULTRIE COUNTIES UNTIL 745
PM CDT...

AT 731 PM CDT...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 5 MILES SOUTHWEST OF PESOTUM TO
ARCOLA TO WINDSOR...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  MATTOON...COLES...GAYS...PARADISE...ETNA AND TRILLA.

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.

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 3938 8832 3935 8864 3979 8848 3979 8846
      3983 8846 3988 8833
TIME...MOT...LOC 0036Z 248DEG 34KT 3988 8829 3968 8833
          3944 8854

$$

CHURCHILL
247 
WWUS53 KILX 200043
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
743 PM CDT TUE APR 19 2011

ILC029-041-139-173-200054-
/O.EXP.KILX.TO.W.0018.000000T0000Z-110420T0045Z/
MOULTRIE IL-SHELBY IL-COLES IL-DOUGLAS IL-
743 PM CDT TUE APR 19 2011

...THE TORNADO WARNING FOR WESTERN DOUGLAS...WESTERN COLES...EAST
CENTRAL SHELBY AND EASTERN MOULTRIE COUNTIES WILL EXPIRE AT 745 PM
CDT...

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

LAT...LON 3938 8832 3935 8864 3979 8848 3979 8846
      3983 8846 3988 8833
TIME...MOT...LOC 0044Z 248DEG 34KT 3991 8820 3971 8824
          3947 8845

$$

CHURCHILL

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 19, 7:02 PM CDTFlash Flood WarningILXChristian, Shelby6 hr
Apr 19, 7:08 PM CDTFlash Flood WarningILXMarshall, Peoria, Stark, Tazewell, Woodford6 hr
Apr 19, 7:15 PM CDTTornado WarningILXShelby45 min
Apr 19, 7:17 PM CDTTornado WarningILXChampaign, Piatt28 min
Apr 19, 7:26 PM CDTFlash Flood WarningILXColes, Moultrie, Shelby6 hr
Apr 19, 7:26 PM CDTTornado WarningILXChampaign, Coles, Douglas34 min
Apr 19, 7:45 PM CDTSevere Thunderstorm WarningILXVermilion30 min
Apr 19, 7:46 PM CDTSevere Thunderstorm WarningILXEdgar29 min
Apr 19, 7:49 PM CDTSevere Thunderstorm WarningILXChampaign26 min
Apr 19, 7:56 PM CDTSevere Thunderstorm WarningILXClark, Coles, Cumberland, Effingham, Shelby49 min
Apr 19, 8:10 PM CDTTornado WarningILXVermilion20 min
Apr 19, 8:13 PM CDTSevere Thunderstorm WarningILXEdgar47 min
Apr 19, 8:14 PM CDTFlash Flood WarningILXColes, Cumberland, Douglas6 hr
Apr 19, 8:33 PM CDTFlash Flood WarningILXClark, Coles, Edgar6 hr
Apr 19, 8:46 PM CDTSevere Thunderstorm WarningILXClark, Crawford, Cumberland, Jasper59 min
Apr 19, 8:52 PM CDTTornado WarningILXEffingham, Shelby38 min
Apr 19, 8:56 PM CDTFlash Flood WarningILXEffingham6 hr
Apr 19, 9:13 PM CDTSevere Thunderstorm WarningILXClark, Coles, Cumberland, Edgar47 min
Apr 19, 9:19 PM CDTSevere Thunderstorm WarningILXClay, Effingham, Jasper, Richland41 min
Apr 19, 9:27 PM CDTRiver Flood WarningILXPiatt12 days
Apr 19, 9:40 PM CDTRiver Flood WarningILXClay, Richland18 days
Apr 19, 9:46 PM CDTTornado WarningILXCrawford, Jasper, Lawrence, Richland44 min
Apr 19, 9:51 PM CDTSevere Thunderstorm WarningILXClark, Crawford, Cumberland, Jasper39 min
Apr 19, 9:53 PM CDTSevere Thunderstorm WarningILXLawrence, Richland27 min
Apr 19, 9:58 PM CDTSevere Thunderstorm WarningILXClark, Edgar17 min
Apr 20, 5:44 AM CDTRiver Flood WarningILXFulton, Knox16 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.