Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 124, NWS Lincoln, IL

September 7, 2012Clark County, Crawford County, Lawrence County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Sep 7, 2012, 7:13 PM CDT for Clark County, Crawford County, Lawrence County, Illinois. It was in force for 62 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: Sep 7, 2012, 7:13 PM CDT (00:13 UTC)
Expired: Sep 7, 2012, 8:15 PM CDT
In force: 62 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Clark County, IL, Crawford County, IL, Lawrence County, IL

The radar

The Evansville,IN radar (KVWX), 84 km from the middle of the area, began a volume at 00:15 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
Sep 7, 3:41 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.2 hours before the alert went out and 150 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: 723 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: -113 m²/s²
0-3 km storm-relative helicity: 99 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.

402 
WUUS53 KILX 080013
SVRILX
ILC023-033-101-080115-
/O.NEW.KILX.SV.W.0124.120908T0013Z-120908T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
713 PM CDT FRI SEP 7 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLARK COUNTY IN EAST CENTRAL ILLINOIS...
  CRAWFORD COUNTY IN EAST CENTRAL ILLINOIS...
  LAWRENCE COUNTY IN SOUTHEAST ILLINOIS...

* UNTIL 815 PM CDT.

* AT 711 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM DENNISON TO WEST UNION TO HAZEL
  DELL TO NOBLE...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROBINSON...LAWRENCEVILLE...ANNAPOLIS...OBLONG...EATON...
  HUTSONVILLE...HARDINVILLE...CHAUNCEY...NEW HEBRON...SUMNER...FLAT
  ROCK...PALESTINE...BRIDGEPORT...BIRDS...RUSSELLVILLE...ST.
  FRANCISVILLE...STOY...TRIMBLE...RED HILLS STATE PARK AND CRAWFORD
  COUNTY AIRPORT.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 146 AND 154.

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 3868 8753 3866 8760 3859 8761 3857 8764
      3857 8790 3917 8795 3918 8801 3929 8801
      3933 8778 3948 8761 3948 8753 3935 8752
      3931 8761 3921 8757 3914 8765 3906 8757
      3899 8756 3896 8751 3886 8754 3874 8749
TIME...MOT...LOC 0013Z 291DEG 29KT 3945 8749 3917 8761
          3917 8795 3870 8821
WIND...HAIL 60MPH 1.00IN

$$

BARKER

3 follow-up statements

218 
WWUS53 KILX 080037
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
737 PM CDT FRI SEP 7 2012

ILC023-080047-
/O.CAN.KILX.SV.W.0124.000000T0000Z-120908T0115Z/
CLARK IL-
737 PM CDT FRI SEP 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR CLARK COUNTY IS CANCELLED...

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

LAT...LON 3868 8753 3866 8760 3861 8762 3859 8761
      3857 8764 3857 8790 3885 8791 3885 8793
      3917 8795 3917 8766 3909 8762 3906 8757
      3899 8756 3896 8751 3887 8754 3874 8749
TIME...MOT...LOC 0037Z 294DEG 30KT 3909 8769 3862 8796

$$

ILC033-101-080115-
/O.CON.KILX.SV.W.0124.000000T0000Z-120908T0115Z/
LAWRENCE IL-CRAWFORD IL-
737 PM CDT FRI SEP 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CRAWFORD AND
LAWRENCE COUNTIES UNTIL 815 PM CDT...

AT 732 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM EATON TO CALHOUN...MOVING
SOUTHEAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  LAWRENCEVILLE...HUTSONVILLE...NEW HEBRON...SUMNER...FLAT ROCK...
  PALESTINE...BRIDGEPORT...BIRDS...RUSSELLVILLE...ST. FRANCISVILLE...
  TRIMBLE...RED HILLS STATE PARK...CRAWFORD COUNTY AIRPORT...
  HELENA...PETROLIA...PINKSTAFF...MOUNT CARMEL AIRPORT...
  LAWRENCEVILLE AIRPORT AND BILLETT.

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.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3868 8753 3866 8760 3861 8762 3859 8761
      3857 8764 3857 8790 3885 8791 3885 8793
      3917 8795 3917 8766 3909 8762 3906 8757
      3899 8756 3896 8751 3887 8754 3874 8749
TIME...MOT...LOC 0037Z 294DEG 30KT 3909 8769 3862 8796
WIND...HAIL 60MPH 1.00IN

$$

BARKER

495 
WWUS53 KILX 080100
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
800 PM CDT FRI SEP 7 2012

ILC033-101-080115-
/O.CON.KILX.SV.W.0124.000000T0000Z-120908T0115Z/
LAWRENCE IL-CRAWFORD IL-
800 PM CDT FRI SEP 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
CRAWFORD AND LAWRENCE COUNTIES UNTIL 815 PM CDT...

AT 755 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM PALESTINE TO 5 MILES EAST OF PARKERSBURG...MOVING SOUTHEAST AT
40 MPH.

LOCATIONS IMPACTED INCLUDE...
  LAWRENCEVILLE...RUSSELLVILLE...ST. FRANCISVILLE...LAWRENCEVILLE
  AIRPORT...MOUNT CARMEL AIRPORT AND BILLETT.

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.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3868 8753 3866 8760 3861 8762 3859 8761
      3857 8764 3857 8790 3885 8791 3885 8793
      3899 8756 3896 8751 3887 8754 3874 8749
TIME...MOT...LOC 0100Z 304DEG 33KT 3892 8753 3858 8791
WIND...HAIL 60MPH <.75IN

$$

BARKER

089 
WWUS53 KILX 080114
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
814 PM CDT FRI SEP 7 2012

ILC033-101-080124-
/O.EXP.KILX.SV.W.0124.000000T0000Z-120908T0115Z/
LAWRENCE IL-CRAWFORD IL-
814 PM CDT FRI SEP 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CRAWFORD AND
LAWRENCE COUNTIES WILL EXPIRE AT 815 PM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.  HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THESE
THUNDERSTORMS.

LAT...LON 3868 8753 3866 8760 3861 8762 3859 8761
      3857 8764 3857 8790 3885 8791 3885 8793
      3899 8756 3896 8751 3887 8754 3874 8749
TIME...MOT...LOC 0114Z 304DEG 33KT 3885 8739 3851 8777

$$

BARKER

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 7, 7:29 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Jasper, Richland	46 min
Sep 7, 8:13 PM CDT	Areal Flood Advisory	ILX	Clay, Effingham	3 hr
Sep 8, 5:45 AM CDT	River Flood Warning	ILX	Clay, Richland	58 hr

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