Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 112, NWS Lincoln, IL

September 5, 2012Christian County, Shelby County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Sep 5, 2012, 8:46 AM CDT for Christian County, Shelby County, Illinois. It was in force for 44 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 5, 2012, 8:46 AM CDT (13:46 UTC)
Expired: Sep 5, 2012, 9:30 AM CDT
In force: 44 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Christian County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 97 km from the middle of the area, began a volume at 13:47 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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 1.8 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: 1271 J/kg
Mixed-layer CIN: -188 J/kg
Mixed-layer LCL: 1037 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

482 
WUUS53 KILX 051346
SVRILX
ILC021-173-051430-
/O.NEW.KILX.SV.W.0112.120905T1346Z-120905T1430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
846 AM CDT WED SEP 5 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CHRISTIAN COUNTY IN CENTRAL ILLINOIS...
  SOUTHERN SHELBY COUNTY IN CENTRAL ILLINOIS...

* UNTIL 930 AM CDT.

* AT 842 AM 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 5 MILES SOUTHWEST OF ASSUMPTION TO MORRISONVILLE...AND MOVING
  SOUTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PANA...TOWER HILL...LAKEWOOD...COWDEN...STEWARDSON...ROSAMOND...
  OCONEE...HERRICK...CLARKSBURG AND MODE.

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.

INTENSE LINES OF THUNDERSTORMS CAN OCCASIONALLY PRODUCE BRIEF 
TORNADOES IN ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. 
ALTHOUGH NOT IMMEDIATELY LIKELY...FOR YOUR PROTECTION MOVE TO AN 
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS 
STORM HAS THE POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT 
DAMAGE TO PROPERTY.

&&

LAT...LON 3924 8915 3935 8915 3934 8945 3936 8948
      3955 8908 3923 8850 3921 8861 3921 8904
TIME...MOT...LOC 1346Z 306DEG 30KT 3947 8910 3934 8941
WIND...HAIL 60MPH <.75IN

$$

MILLER

3 follow-up statements

763 
WWUS53 KILX 051404
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
904 AM CDT WED SEP 5 2012

ILC021-173-051430-
/O.CON.KILX.SV.W.0112.000000T0000Z-120905T1430Z/
SHELBY IL-CHRISTIAN IL-
904 AM CDT WED SEP 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
CHRISTIAN AND SOUTHERN SHELBY COUNTIES UNTIL 930 AM CDT...

AT 901 AM 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 WESTERVELT TO NOKOMIS...MOVING SOUTHEAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  LAKEWOOD...COWDEN...STEWARDSON...OCONEE...CLARKSBURG...HERRICK AND
  MODE.

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.

LINES OF SEVERE THUNDERSTORMS CAN OCCASIONALLY PRODUCE BRIEF 
TORNADOES IN ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. 
ALTHOUGH NOT IMMEDIATELY LIKELY...FOR YOUR PROTECTION MOVE TO AN 
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS 
STORM HAS THE POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT 
DAMAGE TO PROPERTY.

&&

LAT...LON 3924 8914 3934 8914 3935 8915 3951 8902
      3923 8850 3921 8859 3921 8904
TIME...MOT...LOC 1404Z 304DEG 31KT 3942 8889 3929 8919
WIND...HAIL 60MPH <.75IN

$$

MILLER

372 
WWUS53 KILX 051419
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
919 AM CDT WED SEP 5 2012

ILC021-051429-
/O.CAN.KILX.SV.W.0112.000000T0000Z-120905T1430Z/
CHRISTIAN IL-
919 AM CDT WED SEP 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHRISTIAN COUNTY
IS CANCELLED...

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

LAT...LON 3924 8914 3934 8914 3935 8911 3935 8903
      3938 8902 3943 8887 3923 8850 3921 8857
      3921 8904
TIME...MOT...LOC 1419Z 304DEG 31KT 3938 8877 3925 8907

$$

ILC173-051430-
/O.CON.KILX.SV.W.0112.000000T0000Z-120905T1430Z/
SHELBY IL-
919 AM CDT WED SEP 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
SHELBY COUNTY UNTIL 930 AM CDT...

AT 914 AM 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 SHELBYVILLE TO 8 MILES SOUTH OF PANA...MOVING SOUTHEAST AT 35
MPH.

LOCATIONS IMPACTED INCLUDE...
  COWDEN...STEWARDSON...CLARKSBURG...HERRICK AND MODE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LINES OF SEVERE THUNDERSTORMS CAN OCCASIONALLY PRODUCE BRIEF 
TORNADOES IN ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. 
ALTHOUGH NOT IMMEDIATELY LIKELY...FOR YOUR PROTECTION MOVE TO AN 
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS 
STORM HAS THE POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT 
DAMAGE TO PROPERTY.

&&

LAT...LON 3924 8914 3934 8914 3935 8911 3935 8903
      3938 8902 3943 8887 3923 8850 3921 8857
      3921 8904
TIME...MOT...LOC 1419Z 304DEG 31KT 3938 8877 3925 8907
WIND...HAIL 60MPH <.75IN

$$

MILLER

198 
WWUS53 KILX 051430
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
930 AM CDT WED SEP 5 2012

ILC173-051440-
/O.EXP.KILX.SV.W.0112.000000T0000Z-120905T1430Z/
SHELBY IL-
930 AM CDT WED SEP 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN SHELBY COUNTY HAS
EXPIRED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.

LAT...LON 3924 8914 3934 8914 3935 8911 3935 8903
      3938 8902 3943 8887 3923 8850 3921 8857
      3921 8904
TIME...MOT...LOC 1419Z 304DEG 31KT 3938 8877 3925 8907

$$

MILLER

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 5, 4:30 AM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox	60 min
Sep 5, 5:32 AM CDT	Special Weather Statement	ILX	Knox	58 min
Sep 5, 5:36 AM CDT	Special Weather Statement	ILX	Fulton, Schuyler	54 min
Sep 5, 5:54 AM CDT	Special Weather Statement	ILX	Marshall, Mason, Peoria, Stark, Tazewell, Woodford	66 min
Sep 5, 5:56 AM CDT	Special Weather Statement	ILX	Lawrence	34 min
Sep 5, 6:38 AM CDT	Severe Thunderstorm Warning	ILX	Cass, Mason, Morgan, Schuyler, Scott	55 min
Sep 5, 7:26 AM CDT	Special Weather Statement	ILX	Logan, Menard	64 min
Sep 5, 7:31 AM CDT	Special Weather Statement	ILX	Morgan, Sangamon, Scott	59 min
Sep 5, 7:41 AM CDT	Severe Thunderstorm Warning	ILX	Morgan, Sangamon, Scott	34 min
Sep 5, 9:52 AM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham	38 min
Sep 5, 10:03 AM CDT	Special Weather Statement	ILX	Stark	57 min
Sep 5, 10:31 AM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper, Richland	59 min
Sep 5, 11:07 AM CDT	Severe Thunderstorm Warning	ILX	Lawrence, Richland	38 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.