Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 15, NWS Lincoln, IL

April 19, 2011Christian County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 19, 2011, 6:45 PM CDT for Christian County, Illinois. It was in force for 21 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, 6:45 PM CDT (23:45 UTC)
Expired: Apr 19, 2011, 7:06 PM CDT
In force: 21 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon

County Christian County, IL

The radar

The Lincoln radar (KILX), 87 km from the middle of the area, began a volume at 23:48 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.

Issued	Product	Office	Lasted
Apr 19, 1:00 PM CDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.8 hours before the alert went out and 102 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 453 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 189 m²/s²
0-3 km storm-relative helicity: 345 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

291 
WFUS53 KILX 192345
TORILX
ILC021-200030-
/O.NEW.KILX.TO.W.0015.110419T2345Z-110420T0030Z/

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

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CHRISTIAN COUNTY IN CENTRAL ILLINOIS...

* UNTIL 730 PM CDT.

* AT 639 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR NOKOMIS...AND MOVING EAST AT 50 MPH.

  THIS STORM HAS PRODUCED A LARGE TORNADO OVER NORTHERN MONTGOMERY
  COUNTY. 

* LOCATIONS IMPACTED INCLUDE...
  PANA AND ROSAMOND.

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 3935 8930 3935 8937 3937 8937 3949 8904
      3938 8903 3935 8914 3934 8916 3934 8929
TIME...MOT...LOC 2344Z 251DEG 56KT 3937 8925

$$

CHURCHILL

1 follow-up statement

783 
WWUS53 KILX 200006
SVSILX

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

ILC021-200016-
/O.CAN.KILX.TO.W.0015.000000T0000Z-110420T0030Z/
CHRISTIAN IL-
706 PM CDT TUE APR 19 2011

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

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.  HOWEVER HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

IN ADDITION...A TORNADO WATCH REMAINS IN EFFECT UNTIL 9 PM.

LAT...LON 3935 8930 3935 8937 3937 8937 3949 8904
      3938 8903 3935 8914 3934 8916 3934 8929
TIME...MOT...LOC 0006Z 251DEG 56KT 3948 8883

$$

CHURCHILL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 5:00 AM CDT	Special Weather Statement	ILX	Menard, Morgan, Sangamon, Scott	90 min
Apr 19, 5:11 AM CDT	Severe Thunderstorm Warning	ILX	Cass, Morgan, Scott	64 min
Apr 19, 5:20 AM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	55 min
Apr 19, 8:05 AM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Effingham, Moultrie, Shelby	40 min
Apr 19, 8:42 AM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham	27 min
Apr 19, 8:45 AM CDT	Severe Thunderstorm Warning	ILX	Effingham, Shelby	45 min
Apr 19, 9:08 AM CDT	Special Weather Statement	ILX	Jasper	52 min
Apr 19, 9:20 AM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Effingham, Shelby	40 min
Apr 19, 9:28 AM CDT	Areal Flood Advisory	ILX	Coles, Cumberland, Effingham, Shelby	4 hr
Apr 19, 9:48 AM CDT	Special Weather Statement	ILX	Edgar	42 min
Apr 19, 9:53 AM CDT	Areal Flood Advisory	ILX	Clark, Coles, Edgar	3 hr
Apr 19, 12:55 PM CDT	River Flood Warning	ILX	Fulton, Mason	84 days
Apr 19, 12:55 PM CDT	River Flood Warning	ILX	Brown, Cass, Morgan, Schuyler	86 days
Apr 19, 4:37 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Schuyler	38 min
Apr 19, 4:53 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	52 min
Apr 19, 5:40 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Sangamon	50 min
Apr 19, 5:46 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	33 min
Apr 19, 5:47 PM CDT	Special Weather Statement	ILX	Peoria	43 min
Apr 19, 5:54 PM CDT	Special Weather Statement	ILX	Knox, Stark	51 min
Apr 19, 6:01 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Menard, Sangamon	34 min
Apr 19, 6:12 PM CDT	Tornado Warning	ILX	Christian, Sangamon	36 min
Apr 19, 6:14 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Peoria	31 min
Apr 19, 6:22 PM CDT	Tornado Warning	ILX	Christian	25 min
Apr 19, 6:29 PM CDT	Tornado Warning	ILX	Christian, Shelby	46 min
Apr 19, 6:41 PM CDT	Severe Thunderstorm Warning	ILX	Macon	32 min
Apr 19, 6:52 PM CDT	Tornado Warning	ILX	Shelby	38 min
Apr 19, 6:54 PM CDT	Tornado Warning	ILX	Macon, Piatt	36 min

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