Alert archive / Illinois / Tornado Warnings in 2012

Tornado Warning 13, NWS Lincoln, IL

June 16, 2012Knox County, Peoria County, Stark County, Illinois

NWS Lincoln, IL issued this tornado warning at Jun 16, 2012, 7:39 PM CDT for Knox County, Peoria County, Stark County, Illinois. It was in force for 18 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
Jun 16, 2012, 7:39 PM CDT (00:39 UTC)
Expired
Jun 16, 2012, 7:57 PM CDT
In force
18 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon

Counties Knox County, IL, Peoria County, IL, Stark County, IL

The radar

The Quad Cities radar (KDVN), 93 km from the middle of the area, began a volume at 00:39 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.

IssuedProductOfficeLasted
Jun 16, 2:45 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.7 hours before the alert went out and 89 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 00:00Z on 2012-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 573 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 00:00Z on 2012-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
573 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1417 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

390 
WFUS53 KILX 170039
TORILX
ILC095-143-175-170130-
/O.NEW.KILX.TO.W.0013.120617T0039Z-120617T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
739 PM CDT SAT JUN 16 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL KNOX COUNTY IN WEST CENTRAL ILLINOIS...
  NORTHWESTERN PEORIA COUNTY IN CENTRAL ILLINOIS...
  STARK COUNTY IN NORTH CENTRAL ILLINOIS...

* UNTIL 830 PM CDT.

* AT 734 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR WILLIAMSFIELD...OR 19 MILES EAST OF
  GALESBURG...AND MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LAURA...WEST JERSEY...TOULON...WYOMING...CASTLETON...BRADFORD...
  MONICA AND DUNCAN.

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 4098 8964 4086 9003 4099 9014 4120 8964
TIME...MOT...LOC 0040Z 244DEG 28KT 4095 8997

$$

BAK
2 follow-up statements
838 
WWUS53 KILX 170050
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
750 PM CDT SAT JUN 16 2012

ILC095-170100-
/O.CAN.KILX.TO.W.0013.000000T0000Z-120617T0130Z/
KNOX IL-
750 PM CDT SAT JUN 16 2012

...THE TORNADO WARNING FOR EAST CENTRAL KNOX COUNTY IS CANCELLED...

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

LAT...LON 4098 8964 4091 8993 4105 8994 4117 8964
TIME...MOT...LOC 0050Z 244DEG 28KT 4098 8988

$$

ILC143-175-170130-
/O.CON.KILX.TO.W.0013.000000T0000Z-120617T0130Z/
PEORIA IL-STARK IL-
750 PM CDT SAT JUN 16 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN STARK AND NORTH
CENTRAL PEORIA COUNTIES UNTIL 830 PM CDT...

AT 748 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR WEST JERSEY...OR 18 MILES SOUTH OF KEWANEE...
MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  WYOMING...CASTLETON AND DUNCAN.

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 4098 8964 4091 8993 4105 8994 4117 8964
TIME...MOT...LOC 0050Z 244DEG 28KT 4098 8988

$$

BAK
291 
WWUS53 KILX 170057
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
757 PM CDT SAT JUN 16 2012

ILC143-175-170107-
/O.CAN.KILX.TO.W.0013.000000T0000Z-120617T0130Z/
PEORIA IL-STARK IL-
757 PM CDT SAT JUN 16 2012

...THE TORNADO WARNING FOR SOUTHERN STARK AND NORTH CENTRAL PEORIA
COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM.

LAT...LON 4098 8964 4091 8993 4105 8994 4117 8964
TIME...MOT...LOC 0057Z 244DEG 28KT 4100 8981

$$

BAK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 7:24 PM CDTSevere Thunderstorm WarningILXFulton, Knox66 min
Jun 16, 7:43 PM CDTSevere Thunderstorm WarningILXPeoria, Tazewell, Woodford47 min
Jun 16, 8:07 PM CDTSevere Thunderstorm WarningILXCass, Fulton, Logan, Mason, Menard, Tazewell53 min
Jun 16, 8:29 PM CDTSevere Thunderstorm WarningILXMcLean, Peoria, Tazewell, Woodford40 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.