Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 17, NWS Lincoln, IL

March 23, 20124 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 23, 2012, 1:11 PM CDT for 4 counties in Illinois. It was in force for 29 min. 2 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
Mar 23, 2012, 1:11 PM CDT (18:11 UTC)
Expired
Mar 23, 2012, 1:40 PM CDT
In force
29 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.75 in
Wind
50.0 mph

Counties Coles County, IL, Cumberland County, IL, Effingham County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 118 km from the middle of the area, began a volume at 18:12 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
Mar 23, 1:13 PM CDTHAIL 0.88Effingham, IL
Mar 23, 1:26 PM CDTHAIL 1.752 Wsw Etna, IL

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
Mar 23, 11:44 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.2 hours before the alert went out and 97 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 12:00Z on 2012-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2012-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
808 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

477 
WUUS53 KILX 231811
SVRILX
ILC029-035-049-173-231900-
/O.NEW.KILX.SV.W.0017.120323T1811Z-120323T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
111 PM CDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN COLES COUNTY IN EAST CENTRAL ILLINOIS...
  WESTERN CUMBERLAND COUNTY IN EAST CENTRAL ILLINOIS...
  NORTHEASTERN EFFINGHAM COUNTY IN SOUTH CENTRAL ILLINOIS...
  SOUTHEASTERN SHELBY COUNTY IN CENTRAL ILLINOIS...

* UNTIL 200 PM CDT.

* AT 107 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A SEVERE
  THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL.  THIS STORM WAS LOCATED
  1 MILE SOUTH OF EFFINGHAM...AND MOVING NORTH AT 30 MPH. 

* LOCATIONS IMPACTED INCLUDE...
  TEUTOPOLIS...SHUMWAY...STEWARDSON...NEOGA...WINDSOR...LERNA...
  SIGEL...TROWBRIDGE...STRASBURG...ETNA...TRILLA AND PARADISE.

THIS INCLUDES INTERSTATE 57 BETWEEN MILE MARKERS 155 AND 184.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 86 AND 103.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

LAT...LON 3945 8866 3942 8825 3903 8846 3905 8868
TIME...MOT...LOC 1811Z 192DEG 25KT 3911 8853
WIND...HAIL <50MPH 1.75IN

$$
GEELHART
3 follow-up statements
622 
WWUS53 KILX 231821
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
121 PM CDT FRI MAR 23 2012

ILC029-035-049-173-231900-
/O.CON.KILX.SV.W.0017.000000T0000Z-120323T1900Z/
SHELBY IL-COLES IL-CUMBERLAND IL-EFFINGHAM IL-
121 PM CDT FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
EFFINGHAM...WESTERN CUMBERLAND...SOUTHWESTERN COLES AND SOUTHEASTERN
SHELBY COUNTIES UNTIL 200 PM CDT...

AT 116 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
THIS STORM WAS LOCATED ON THE NORTH SIDE OF EFFINGHAM...MOVING 
NORTH AT 30 MPH. SEVERAL REPORTS HAVE BEEN RECEIVED IN EFFINGHAM OF
HAIL RANGING FROM NICKEL TO GOLF BALL SIZE. 

AN ADDITIONAL STRONG TO SEVERE THUNDERSTORM HAD RECENTLY DEVELOPED 
ALONG THE SHELBY AND CUMBERLAND COUNTY BORDER NEAR NEOGA...AND WAS 
ALSO MOVING NORTH AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  STEWARDSON...NEOGA...WINDSOR...LERNA...SIGEL...TROWBRIDGE...
  STRASBURG...ETNA...TRILLA AND PARADISE.

THIS INCLUDES INTERSTATE 57 BETWEEN MILE MARKERS 158 AND 184.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 92 AND 103.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

LAT...LON 3945 8866 3942 8825 3908 8843 3910 8865
TIME...MOT...LOC 1820Z 192DEG 25KT 3917 8851
WIND...HAIL <50MPH 1.50IN

$$
GEELHART
941 
WWUS53 KILX 231831
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
131 PM CDT FRI MAR 23 2012

ILC049-231840-
/O.CAN.KILX.SV.W.0017.000000T0000Z-120323T1900Z/
EFFINGHAM IL-
131 PM CDT FRI MAR 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN EFFINGHAM COUNTY
IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED INTO 
SHELBY COUNTY. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 7 PM. REMAIN ALERT
FOR THE POSSIBILITY OF MORE SEVERE WEATHER. 

LAT...LON 3944 8854 3942 8832 3922 8847 3922 8862
TIME...MOT...LOC 1830Z 198DEG 17KT 3937 8845

$$
ILC029-035-173-231900-
/O.CON.KILX.SV.W.0017.000000T0000Z-120323T1900Z/
SHELBY IL-COLES IL-CUMBERLAND IL-
131 PM CDT FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
CUMBERLAND...SOUTHWESTERN COLES AND SOUTHEASTERN SHELBY COUNTIES
UNTIL 200 PM CDT...

AT 126 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL.  THIS STORM WAS LOCATED
OVER LAKE MATTOON...OR 10 MILES SOUTHWEST OF MATTOON...MOVING NORTH 
AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  ETNA...TRILLA AND PARADISE.

THIS INCLUDES INTERSTATE 57 BETWEEN MILE MARKERS 169 AND 184.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3944 8854 3942 8832 3922 8847 3922 8862
TIME...MOT...LOC 1830Z 198DEG 17KT 3937 8845
WIND...HAIL <50MPH 1.75IN

$$
GEELHART
497 
WWUS53 KILX 231840
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
140 PM CDT FRI MAR 23 2012

ILC029-035-173-231848-
/O.CAN.KILX.SV.W.0017.000000T0000Z-120323T1900Z/
SHELBY IL-COLES IL-CUMBERLAND IL-
140 PM CDT FRI MAR 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CUMBERLAND AND 
SOUTHEASTERN SHELBY COUNTIES IS CANCELLED...

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

A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR WESTERN COLES 
COUNTY UNTIL 215 PM. 

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 7 PM.

LAT...LON 3944 8854 3942 8832 3922 8847 3922 8862
TIME...MOT...LOC 1838Z 198DEG 17KT 3941 8843

$$
GEELHART

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 1:33 PM CDTSevere Thunderstorm WarningILXColes, Moultrie42 min
Mar 23, 2:08 PM CDTTornado WarningILXClay27 min
Mar 23, 2:12 PM CDTSevere Thunderstorm WarningILXChampaign, Douglas35 min
Mar 23, 2:14 PM CDTSevere Thunderstorm WarningILXLawrence, Richland31 min
Mar 23, 2:28 PM CDTTornado WarningILXClay, Effingham30 min
Mar 23, 2:33 PM CDTSevere Thunderstorm WarningILXLawrence37 min
Mar 23, 2:39 PM CDTSevere Thunderstorm WarningILXCrawford, Jasper, Lawrence, Richland22 min
Mar 23, 2:44 PM CDTSevere Thunderstorm WarningILXChampaign46 min
Mar 23, 2:53 PM CDTTornado WarningILXClay24 min
Mar 23, 3:26 PM CDTSevere Thunderstorm WarningILXClark, Edgar34 min
Mar 23, 3:28 PM CDTSevere Thunderstorm WarningILXChampaign17 min
Mar 23, 3:35 PM CDTSevere Thunderstorm WarningILXVermilion38 min
Mar 23, 3:42 PM CDTSevere Thunderstorm WarningILXChampaign, Vermilion25 min
Mar 23, 3:44 PM CDTSevere Thunderstorm WarningILXEdgar31 min
Mar 23, 4:08 PM CDTSevere Thunderstorm WarningILXVermilion26 min
Mar 23, 4:29 PM CDTSevere Thunderstorm WarningILXMcLean, Marshall, Woodford34 min
Mar 23, 4:31 PM CDTSevere Thunderstorm WarningILXVermilion29 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2012Every severe thunderstorm warning in 2012

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.