Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 1, NWS Lincoln, IL

February 28, 2011Richland County, Illinois

NWS Lincoln, IL issued this tornado warning at Feb 28, 2011, 1:18 AM CST for Richland County, Illinois. It was in force for 14 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: Feb 28, 2011, 1:18 AM CST (07:18 UTC)
Expired: Feb 28, 2011, 1:32 AM CST
In force: 14 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon

County Richland County, IL

The radar

The Evansville,IN radar (KVWX), 61 km from the middle of the area, began a volume at 07:19 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
Feb 27, 11:46 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 7.3 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-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.

726 
WFUS53 KILX 280718
TORILX
ILC159-280745-
/O.NEW.KILX.TO.W.0001.110228T0718Z-110228T0745Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
118 AM CST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL RICHLAND COUNTY IN SOUTHEAST ILLINOIS...

* UNTIL 145 AM CST.

* AT 116 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR NOBLE...OR 7 MILES SOUTHWEST OF OLNEY...AND
  MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OLNEY...CALHOUN AND CLAREMONT.

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 3877 8826 3884 8792 3863 8792 3860 8820
TIME...MOT...LOC 0718Z 258DEG 53KT 3870 8817

$$

1 follow-up statement

681 
WWUS53 KILX 280732
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
132 AM CST MON FEB 28 2011

ILC159-280742-
/O.CAN.KILX.TO.W.0001.000000T0000Z-110228T0745Z/
RICHLAND IL-
132 AM CST MON FEB 28 2011

...THE TORNADO WARNING FOR CENTRAL RICHLAND COUNTY IS CANCELLED...

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

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 5 AM.

LAT...LON 3877 8826 3884 8792 3863 8792 3860 8820
TIME...MOT...LOC 0732Z 258DEG 53KT 3874 8791

$$

BAK

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 27, 6:52 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Schuyler	38 min
Feb 27, 7:19 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Mason, Tazewell	41 min
Feb 27, 7:40 PM CST	Special Weather Statement	ILX	Mason, Menard, Tazewell	50 min
Feb 27, 7:56 PM CST	Special Weather Statement	ILX	Peoria, Tazewell	49 min
Feb 27, 8:14 PM CST	Severe Thunderstorm Warning	ILX	Logan, McLean, Tazewell	31 min
Feb 27, 8:25 PM CST	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Schuyler	35 min
Feb 27, 8:30 PM CST	Special Weather Statement	ILX	Christian, Moultrie, Shelby	30 min
Feb 27, 8:33 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Peoria, Tazewell	32 min
Feb 27, 8:42 PM CST	Special Weather Statement	ILX	Morgan, Scott	33 min
Feb 27, 8:44 PM CST	Severe Thunderstorm Warning	ILX	McLean	46 min
Feb 27, 8:45 PM CST	Freezing Rain Advisory	ILX	Knox, Stark	5 hr
Feb 27, 9:17 PM CST	Severe Thunderstorm Warning	ILX	Christian, Logan, Menard, Sangamon	28 min
Feb 27, 9:19 PM CST	Special Weather Statement	ILX	Coles, Douglas, Edgar	41 min
Feb 27, 9:35 PM CST	Severe Thunderstorm Warning	ILX	Clark, Coles, Douglas, Edgar	40 min
Feb 27, 9:47 PM CST	Special Weather Statement	ILX	DeWitt, Logan, McLean, Macon, Moultrie, Piatt	43 min
Feb 27, 10:11 PM CST	Special Weather Statement	ILX	Lawrence	34 min
Feb 27, 10:43 PM CST	Special Weather Statement	ILX	Crawford, Lawrence	47 min
Feb 27, 11:02 PM CST	River Flood Warning	ILX	Peoria, Tazewell, Woodford	16 days
Feb 27, 11:04 PM CST	Special Weather Statement	ILX	Cass, Logan, Menard, Morgan, Sangamon	56 min
Feb 28, 12:25 AM CST	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Effingham, Jasper, Moultrie, Shelby	44 min
Feb 28, 12:29 AM CST	Severe Thunderstorm Warning	ILX	Clay, Cumberland, Effingham, Jasper, Richland	61 min
Feb 28, 12:59 AM CST	Severe Thunderstorm Warning	ILX	Clark, Edgar	32 min
Feb 28, 1:06 AM CST	Severe Thunderstorm Warning	ILX	Crawford, Lawrence	39 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.