Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 4, NWS Lincoln, IL

March 2, 20126 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 2, 2012, 7:20 AM CST for 6 counties in Illinois. It was in force for 40 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: Mar 2, 2012, 7:20 AM CST (13:20 UTC)
Expired: Mar 2, 2012, 8:00 AM CST
In force: 40 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

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

The radar

The Lincoln radar (KILX), 110 km from the middle of the area, began a volume at 13:24 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
Mar 2, 7:45 AM CST	HAIL 1.25	4 Ne Cowden, IL	DELAYED REPORT
Mar 2, 7:49 AM CST	HAIL 0.88	2 W Shelbyville, IL
Mar 2, 8:02 AM CST	HAIL 1.5	Neoga, IL
Mar 2, 8:02 AM CST	HAIL 1.75	2 Ne Neoga, IL	SWOP
Mar 2, 8:08 AM CST	HAIL 0.75	5 S Mattoon, 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.

Issued	Product	Office	Lasted
Mar 2, 5:52 AM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 1.3 hours before the alert went out and 101 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: 1770 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 163 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.

967 
WUUS53 KILX 021320
SVRILX
ILC021-029-035-049-139-173-021400-
/O.NEW.KILX.SV.W.0004.120302T1320Z-120302T1400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
720 AM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 800 AM CST.

* AT 715 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL
  SIZE HAIL.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 6
  MILES NORTH OF NOKOMIS TO 6 MILES NORTH OF RAMSEY TO BROWNSTOWN...
  AND MOVING EAST AT 55 MPH.

  THESE STORMS HAVE A HISTORY OF PRODUCING HAIL GREATER THAN AN INCH 
  IN DIAMETER.

* LOCATIONS IMPACTED INCLUDE...
  SHELBYVILLE...EFFINGHAM...SULLIVAN...MATTOON...PANA...COWDEN...
  LAKEWOOD...ALTAMONT...TOWER HILL...BEECHER CITY...WESTERVELT...
  WATSON...SHUMWAY...STEWARDSON...TEUTOPOLIS...FINDLAY...WINDSOR...
  DIETERICH...MONTROSE AND NEOGA.

THIS INCLUDES INTERSTATE 57 BETWEEN MILE MARKERS 149 AND 191.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 78 AND 107.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3921 8881 3921 8913 3922 8914 3934 8914
      3934 8928 3940 8934 3966 8849 3947 8826
      3917 8833 3917 8836 3900 8836 3895 8881
TIME...MOT...LOC 1320Z 248DEG 49KT 3942 8922 3926 8904
          3905 8894
WIND...HAIL <50MPH 1.50IN

$$

CHURCHILL

1 follow-up statement

585 
WWUS53 KILX 021349
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
749 AM CST FRI MAR 2 2012

ILC021-049-021358-
/O.CAN.KILX.SV.W.0004.000000T0000Z-120302T1400Z/
CHRISTIAN IL-EFFINGHAM IL-
749 AM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR EFFINGHAM AND SOUTHEASTERN
CHRISTIAN COUNTIES IS CANCELLED...

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

LAT...LON 3922 8847 3922 8881 3932 8891 3950 8902
      3966 8849 3947 8826 3917 8833 3917 8847
TIME...MOT...LOC 1348Z 248DEG 49KT 3951 8886 3939 8873
          3925 8861

$$

ILC029-035-139-173-021400-
/O.CON.KILX.SV.W.0004.000000T0000Z-120302T1400Z/
MOULTRIE IL-SHELBY IL-COLES IL-CUMBERLAND IL-
749 AM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
CUMBERLAND...SOUTHWESTERN COLES...SHELBY AND SOUTHERN MOULTRIE
COUNTIES UNTIL 800 AM CST...

AT 747 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL SIZE
HAIL.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
WESTERVELT TO SHELBYVILLE TO STEWARDSON...MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  SULLIVAN...MATTOON...FINDLAY...WINDSOR...NEOGA...ALLENVILLE...
  LERNA...COOKS MILL...STRASBURG...EAGLE CREEK STATE PARK...SIGEL...
  WOLF CREEK STATE PARK...TROWBRIDGE...KIRKSVILLE...GAYS...
  PARADISE...ETNA...TRILLA...COLES AND COLES COUNTY AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3922 8847 3922 8881 3932 8891 3950 8902
      3966 8849 3947 8826 3917 8833 3917 8847
TIME...MOT...LOC 1348Z 248DEG 49KT 3951 8886 3939 8873
          3925 8861
WIND...HAIL <50MPH 1.50IN

$$

BARNES

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 3:41 AM CST	Wind Advisory	ILX	Champaign, Christian, Clark, Clay, Coles, Crawford and 16 more	16 hr
Mar 2, 8:00 AM CST	Severe Thunderstorm Warning	ILX	Clark, Coles, Cumberland, Douglas, Edgar, Moultrie and 1 more	45 min
Mar 2, 8:09 AM CST	Special Weather Statement	ILX	Sangamon	51 min
Mar 2, 8:22 AM CST	Severe Thunderstorm Warning	ILX	Clark, Edgar	38 min
Mar 2, 8:42 AM CST	Severe Thunderstorm Warning	ILX	Edgar	33 min
Mar 2, 9:06 AM CST	Special Weather Statement	ILX	Macon	54 min
Mar 2, 11:22 AM CST	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper	26 min
Mar 2, 11:30 AM CST	Severe Thunderstorm Warning	ILX	Clark, Coles, Edgar	30 min
Mar 2, 12:05 PM CST	Severe Thunderstorm Warning	ILX	Clay	40 min
Mar 2, 1:15 PM CST	Tornado Warning	ILX	Lawrence	13 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2012 Every 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.