Alert archive / Illinois / Tornado Warnings in 2012

Tornado Warning 6, NWS Lincoln, IL

April 28, 2012Crawford County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 28, 2012, 3:57 PM CDT for Crawford County, Illinois. It was in force for 37 min. 4 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
Apr 28, 2012, 3:57 PM CDT (20:57 UTC)
Expired
Apr 28, 2012, 4:34 PM CDT
In force
37 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon

County Crawford County, IL

The radar

The Evansville,IN radar (KVWX), 82 km from the middle of the area, began a volume at 20:59 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
Apr 28, 4:00 PM CDTHAIL 1.5Oblong, IL
Apr 28, 4:15 PM CDTHAIL 1.5Robinson, IL
Apr 28, 4:15 PM CDTHAIL 1.75Robinson, ILHAIL SHREDDED LEAVES
Apr 28, 4:25 PM CDTHAIL 0.75Palestine, 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.

IssuedProductOfficeLasted
Apr 28, 1:48 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.0 hours before the alert went out and 153 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 2012-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 681 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
681 m²/s²
0-3 km storm-relative helicity
811 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

471 
WFUS53 KILX 282057
TORILX
ILC033-282145-
/O.NEW.KILX.TO.W.0006.120428T2057Z-120428T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
357 PM CDT SAT APR 28 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  CRAWFORD COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 445 PM CDT.

* AT 355 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR WILLOW HILL...OR 10 MILES EAST OF NEWTON...
  AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROBINSON...OBLONG...EATON...HARDINVILLE...NEW HEBRON...FLAT ROCK...
  PALESTINE...STOY...TRIMBLE AND CRAWFORD COUNTY AIRPORT.

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 3886 8755 3893 8794 3912 8795 3909 8759
      3906 8757 3904 8757 3900 8757 3896 8751
TIME...MOT...LOC 2057Z 283DEG 26KT 3903 8796

$$

BAK
2 follow-up statements
156 
WWUS53 KILX 282106
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
406 PM CDT SAT APR 28 2012

ILC033-282145-
/O.CON.KILX.TO.W.0006.000000T0000Z-120428T2145Z/
CRAWFORD IL-
406 PM CDT SAT APR 28 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN CRAWFORD COUNTY
UNTIL 445 PM CDT...

AT 404 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR OBLONG...OR 7 MILES WEST OF ROBINSON...MOVING
EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  ROBINSON...HARDINVILLE...NEW HEBRON...FLAT ROCK...PALESTINE...
  STOY...TRIMBLE AND CRAWFORD COUNTY AIRPORT.

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 3886 8755 3893 8794 3909 8794 3906 8758
      3905 8757 3900 8757 3896 8751
TIME...MOT...LOC 2106Z 283DEG 32KT 3901 8784

$$

BAK
221 
WWUS53 KILX 282134
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
434 PM CDT SAT APR 28 2012

ILC033-282144-
/O.CAN.KILX.TO.W.0006.000000T0000Z-120428T2145Z/
CRAWFORD IL-
434 PM CDT SAT APR 28 2012

...THE TORNADO WARNING FOR SOUTHERN CRAWFORD COUNTY IS CANCELLED...

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

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM.

LAT...LON 3886 8755 3893 8794 3909 8794 3906 8758
      3905 8757 3900 8757 3896 8751
TIME...MOT...LOC 2134Z 283DEG 32KT 3895 8753

$$

BAK

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 3:21 PM CDTSpecial Weather StatementILXJasper39 min
Apr 28, 3:28 PM CDTSevere Thunderstorm WarningILXClark, Crawford, Cumberland, Jasper32 min
Apr 28, 3:49 PM CDTSevere Thunderstorm WarningILXCrawford, Jasper41 min
Apr 28, 4:38 PM CDTSpecial Weather StatementILXSangamon67 min
Apr 28, 6:45 PM CDTSevere Thunderstorm WarningILXClay, Effingham60 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.