Alert archive / Illinois / Tornado Warnings in 2012

Tornado Warning 12, NWS Lincoln, IL

May 6, 2012Vermilion County, Illinois

NWS Lincoln, IL issued this tornado warning at May 6, 2012, 5:21 PM CDT for Vermilion County, Illinois. It was in force for 39 min. 3 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, 5:21 PM CDT (22:21 UTC)
Expired
May 6, 2012, 6:00 PM CDT
In force
39 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon

County Vermilion County, IL

The radar

The Chicago radar (KLOT), 133 km from the middle of the area, began a volume at 22:20 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, 5:24 PM CDTHAIL 2.5Hoopeston, ILRELAYED BY EMA
May 6, 5:30 PM CDTHAIL 1.75Hoopeston, IL
May 6, 5:48 PM CDTTSTM WND DMGHoopeston, ILPOWER POLES DOWN NEAR JUNCTION OF HIGHWAYS 1 AND 9.

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

Lincoln, IL (KILX), launched 12:00Z, 10.4 hours before the alert went out and 93 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 2012-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2922 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, Lincoln, IL at 12:00Z on 2012-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.1939Sfc1 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
2922 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
576 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
98 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.

986 
WFUS53 KILX 062221
TORILX
ILC183-062300-
/O.NEW.KILX.TO.W.0012.120506T2221Z-120506T2300Z/

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

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN VERMILION COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 600 PM CDT.

* AT 519 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR HOOPESTON...OR 22 MILES EAST OF PAXTON...AND
  MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HOOPESTON.

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 4043 8753 4043 8770 4049 8773 4050 8759
      4050 8753 4049 8752
TIME...MOT...LOC 2221Z 258DEG 20KT 4045 8768

$$

BAK
2 follow-up statements
607 
WWUS53 KILX 062233
SVSILX

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

ILC183-062300-
/O.CON.KILX.TO.W.0012.000000T0000Z-120506T2300Z/
VERMILION IL-
533 PM CDT SUN MAY 6 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN VERMILION
COUNTY UNTIL 600 PM CDT...

AT 532 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS 
STORM WAS LOCATED NEAR HOOPESTON...MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHEASTERN VERMILION COUNTY.

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 4043 8753 4044 8767 4049 8769 4050 8759
      4050 8753 4049 8752
TIME...MOT...LOC 2233Z 258DEG 20KT 4046 8759

$$

BAK
052 
WWUS53 KILX 062252
SVSILX

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

ILC183-062302-
/O.EXP.KILX.TO.W.0012.000000T0000Z-120506T2300Z/
VERMILION IL-
552 PM CDT SUN MAY 6 2012

...THE TORNADO WARNING FOR NORTHEASTERN VERMILION COUNTY WILL EXPIRE
AT 600 PM CDT...

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

LAT...LON 4043 8753 4044 8767 4049 8769 4050 8759
      4050 8753 4049 8752
TIME...MOT...LOC 2252Z 258DEG 20KT 4048 8745

$$

BAK

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, 3:07 PM CDTTornado WarningILXMarshall53 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, 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.