Alert archive / Illinois / Tornado Warnings in 2012

Tornado Warning 17, NWS Lincoln, IL

September 1, 2012Marshall County, Woodford County, Illinois

NWS Lincoln, IL issued this tornado warning at Sep 1, 2012, 11:48 AM CDT for Marshall County, Woodford County, Illinois. It was in force for 42 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
Sep 1, 2012, 11:48 AM CDT (16:48 UTC)
Expired
Sep 1, 2012, 12:30 PM CDT
In force
42 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon

Counties Marshall County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 85 km from the middle of the area, began a volume at 16:47 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.

What was reported inside it

TimeReportWhereRemark
Sep 1, 11:48 AM CDTTORNADO2 Ese Benson, ILBRIEF TOUCHDOWN IN A FARM FIELD
Sep 1, 12:03 PM CDTTORNADO3 N Benson, ILBRIEF TOUCHDOWN
Sep 1, 12:05 PM CDTTORNADO4 Nnw Benson, ILBRIEF TOUCHDOWN...TIN ROOF BLOWN OFF A SHED AND MINOR DAMAGE TO CORN FIELD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.8 hours before the alert went out and 98 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 2012-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 443 joules per kilogram.LCLEL10008507005003002001001 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 2012-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
443 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
457 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
36 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.

802 
WFUS53 KILX 011648
TORILX
ILC123-203-011730-
/O.NEW.KILX.TO.W.0017.120901T1648Z-120901T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1148 AM CDT SAT SEP 1 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN MARSHALL COUNTY IN CENTRAL ILLINOIS...
  NORTH CENTRAL WOODFORD COUNTY IN CENTRAL ILLINOIS...

* UNTIL 1230 PM CDT.

* AT 1141 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 5 MILES SOUTH OF MINONK...OR 14 MILES NORTHEAST
  OF EUREKA...AND MOVING NORTHWEST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WASHBURN...TOLUCA...BENSON...PATTONSBURG AND LA ROSE.

THIS INCLUDES INTERSTATE 39 BETWEEN MILE MARKERS 21 AND 28.

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 4093 8936 4108 8910 4082 8901 4079 8907
TIME...MOT...LOC 1648Z 148DEG 13KT 4086 8909

$$

BARNES
3 follow-up statements
845 
WWUS53 KILX 011704
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1204 PM CDT SAT SEP 1 2012

ILC123-203-011730-
/O.CON.KILX.TO.W.0017.000000T0000Z-120901T1730Z/
MARSHALL IL-WOODFORD IL-
1204 PM CDT SAT SEP 1 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL WOODFORD AND
SOUTHEASTERN MARSHALL COUNTIES UNTIL 1230 PM CDT...

AT 1158 AM CDT...EMERGENCY MANAGEMENT REPORTED A TORNADO ON THE 
GROUND 3 MILES NORTH OF BENSON...MOVING NORTHWEST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  WASHBURN...TOLUCA...PATTONSBURG AND LA ROSE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 4088 8904 4084 8913 4093 8936 4108 8910
TIME...MOT...LOC 1704Z 148DEG 13KT 4091 8913

$$

BARNES
488 
WWUS53 KILX 011716
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1216 PM CDT SAT SEP 1 2012

ILC123-203-011730-
/O.CON.KILX.TO.W.0017.000000T0000Z-120901T1730Z/
MARSHALL IL-WOODFORD IL-
1216 PM CDT SAT SEP 1 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL WOODFORD AND
SOUTHEASTERN MARSHALL COUNTIES UNTIL 1230 PM CDT...

AT 1209 PM CDT...EMERGENCY MANAGEMENT REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED 6 MILES SOUTH OF TOLUCA...OR 15 MILES SOUTHEAST
OF LACON...MOVING NORTHWEST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  WASHBURN...TOLUCA AND LA ROSE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 4088 8904 4084 8913 4093 8936 4108 8910
TIME...MOT...LOC 1716Z 148DEG 13KT 4095 8916

$$
306 
WWUS53 KILX 011735
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1235 PM CDT SAT SEP 1 2012

ILC123-203-011743-
/O.EXP.KILX.TO.W.0017.000000T0000Z-120901T1730Z/
MARSHALL IL-WOODFORD IL-
1235 PM CDT SAT SEP 1 2012

...THE TORNADO WARNING FOR NORTH CENTRAL WOODFORD AND SOUTHEASTERN
MARSHALL COUNTIES HAS EXPIRED...

A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL MARSHALL COUNTY 
UNTIL 115 PM CDT.

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

LAT...LON 4088 8904 4084 8913 4093 8936 4108 8910
TIME...MOT...LOC 1716Z 148DEG 13KT 4095 8916

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 12:01 PM CDTTornado WarningILXMarshall, Peoria, Woodford44 min
Sep 1, 12:07 PM CDTTornado WarningILXLogan, Tazewell22 min
Sep 1, 12:26 PM CDTTornado WarningILXMarshall49 min
Sep 1, 12:43 PM CDTTornado WarningILXMarshall, Stark47 min
Sep 1, 2:41 PM CDTTornado WarningILXChristian, Logan, Sangamon49 min
Sep 1, 2:50 PM CDTTornado WarningILXMason, Menard, Sangamon40 min
Sep 1, 4:24 PM CDTFlash Flood WarningILXEffingham6 hr

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.