Alert archive / Illinois / Tornado Warnings in 2012

Tornado Warning 11, NWS Lincoln, IL

May 6, 2012Marshall County, Illinois

NWS Lincoln, IL issued this tornado warning at May 6, 2012, 3:07 PM CDT for Marshall County, Illinois. It was in force for 53 min. 6 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
May 6, 2012, 3:07 PM CDT (20:07 UTC)
Expired
May 6, 2012, 4:00 PM CDT
In force
53 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon

County Marshall County, IL

The radar

The Lincoln radar (KILX), 102 km from the middle of the area, began a volume at 20:08 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
May 6, 3:18 PM CDTTSTM WND GST 604 Sw Henry, IL
May 6, 3:18 PM CDTHAIL 0.254 Sw Henry, IL
May 6, 3:20 PM CDTHAIL 0.88Henry, ILREPORTED BY HENRY CITY ESDA
May 6, 3:20 PM CDTHAIL 1.755 Sw Henry, IL
May 6, 3:24 PM CDTHAIL 1Henry, IL
May 6, 3:30 PM CDTTSTM WND DMGToluca, ILPOWERLINES DOWN

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
May 6, 1:42 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 8.1 hours before the alert went out and 117 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, Davenport, at 12:00Z on 2012-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2361 joules per kilogram.LCLLFCEL10008507005003002001001 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, Davenport, at 12:00Z on 2012-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 square meters per square second.193958Sfc1 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
2361 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
571 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.6

Open this sounding in Storm Lab

The text

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

305 
WFUS53 KILX 062007
TORILX
ILC123-062100-
/O.NEW.KILX.TO.W.0011.120506T2007Z-120506T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
307 PM CDT SUN MAY 6 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  MARSHALL COUNTY IN CENTRAL ILLINOIS...

* UNTIL 400 PM CDT.

* AT 304 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR SPARLAND...OR NEAR LACON...AND MOVING EAST
  AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LACON...HENRY...VARNA...TOLUCA...WENONA...LAKE WILDWOOD...LA ROSE
  AND PATTONSBURG.

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 4115 8932 4112 8932 4111 8933 4111 8905
      4110 8904 4093 8905 4092 8946 4097 8944
      4098 8948 4115 8948 4115 8933
TIME...MOT...LOC 2007Z 288DEG 35KT 4106 8940

$$

CHS
4 follow-up statements
586 
WWUS53 KILX 062022
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
322 PM CDT SUN MAY 6 2012

ILC123-062100-
/O.CON.KILX.TO.W.0011.000000T0000Z-120506T2100Z/
MARSHALL IL-
322 PM CDT SUN MAY 6 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR MARSHALL COUNTY UNTIL 400
PM CDT...

AT 320 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR VARNA...OR 5 MILES EAST OF LACON...MOVING EAST
AT 30 MPH.

IN ADDITION...AT 320 PM GOLF BALL SIZED HAIL WAS REPORTED 5 MILES 
SOUTHWEST OF HENRY WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  VARNA...TOLUCA...WENONA...LA ROSE AND PATTONSBURG.

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 4115 8932 4112 8932 4111 8933 4111 8905
      4110 8904 4093 8905 4092 8946 4097 8944
      4098 8948 4115 8948 4115 8933
TIME...MOT...LOC 2022Z 288DEG 28KT 4105 8930

$$

CHS
356 
WWUS53 KILX 062035
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
335 PM CDT SUN MAY 6 2012

ILC123-062100-
/O.CON.KILX.TO.W.0011.000000T0000Z-120506T2100Z/
MARSHALL IL-
335 PM CDT SUN MAY 6 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL MARSHALL
COUNTY UNTIL 400 PM CDT...

AT 333 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR VARNA...OR 13 MILES EAST OF LACON...MOVING
EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  WENONA.

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 4100 8905 4101 8928 4103 8934 4115 8933
      4115 8932 4112 8932 4111 8933 4111 8905
      4110 8904
TIME...MOT...LOC 2035Z 264DEG 33KT 4108 8915

$$

CHS
717 
WWUS53 KILX 062046
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
346 PM CDT SUN MAY 6 2012

ILC123-062100-
/O.CON.KILX.TO.W.0011.000000T0000Z-120506T2100Z/
MARSHALL IL-
346 PM CDT SUN MAY 6 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL MARSHALL
COUNTY UNTIL 400 PM CDT...

AT 345 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR WENONA...OR 13 MILES WEST OF STREATOR...MOVING
EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  WENONA.

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 4100 8905 4101 8915 4111 8916 4111 8905
      4110 8904
TIME...MOT...LOC 2046Z 271DEG 24KT 4106 8906

$$

CHS
433 
WWUS53 KILX 062056
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
356 PM CDT SUN MAY 6 2012

ILC123-062105-
/O.EXP.KILX.TO.W.0011.000000T0000Z-120506T2100Z/
MARSHALL IL-
356 PM CDT SUN MAY 6 2012

...THE TORNADO WARNING FOR EAST CENTRAL MARSHALL COUNTY WILL EXPIRE
AT 400 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.  HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH ADDITIONAL 
THUNDERSTORM DEVELOPMENT.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM.

LAT...LON 4100 8905 4101 8915 4111 8916 4111 8905
      4110 8904
TIME...MOT...LOC 2055Z 271DEG 24KT 4106 8898

$$

CHS

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 2:06 PM CDTSevere Thunderstorm WarningILXKnox, Peoria, Stark54 min
May 6, 2:36 PM CDTTornado WarningILXMarshall, Stark39 min
May 6, 3:46 PM CDTAreal Flood AdvisoryILXMarshall, Stark6 hr
May 6, 4:03 PM CDTSevere Thunderstorm WarningILXChampaign, Vermilion57 min
May 6, 5:00 PM CDTSevere Thunderstorm WarningILXVermilion45 min
May 6, 5:21 PM CDTTornado WarningILXVermilion39 min
May 6, 6:09 PM CDTFlash Flood WarningILXVermilion6 hr
May 6, 6:48 PM CDTSpecial Weather StatementILXVermilion27 min

Nearby

Tornado Warnings in Illinois, 2012Every tornado warning in 2012Tornadoes 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.