Alert archive / Illinois / Tornado Warnings in 2007

Tornado Warning 19, NWS Lincoln, IL

October 2, 2007Cass County, Schuyler County, Illinois

NWS Lincoln, IL issued this tornado warning at Oct 2, 2007, 6:46 PM CDT for Cass County, Schuyler County, Illinois. It was in force for 33 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
Oct 2, 2007, 6:46 PM CDT (23:46 UTC)
Expired
Oct 2, 2007, 7:19 PM CDT
In force
33 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon

Counties Cass County, IL, Schuyler County, IL

The radar

The Lincoln radar (KILX), 101 km from the middle of the area, began a volume at 23:48 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
Oct 2, 5:47 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.8 hours before the alert went out and 164 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 2007-10-02Temperature 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 2007-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1032 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
87 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.

000 
WFUS53 KILX 022346
TORILX
ILC017-169-030030-
/O.NEW.KILX.TO.W.0019.071002T2346Z-071003T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
646 PM CDT TUE OCT 2 2007

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN CASS COUNTY IN WEST CENTRAL ILLINOIS...
  EASTERN SCHUYLER COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 730 PM CDT.

* AT 646 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES
  SOUTHWEST OF RUSHVILLE...MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RUSHVILLE...
  BEARDSTOWN...
  BROWNING...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 1 
INCH SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

WHEN A TORNADO WARNING IS ISSUED...IT MEANS THAT STRONG ROTATION HAS
BEEN DETECTED IN THE STORM...AND ATMOSPHERIC CONDITIONS SUPPORT THAT
ROTATION REACHING THE GROUND. A TORNADO MAY ALREADY BE ON THE
GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF
THIS DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE
BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER
UNDER A HIGHWAY OVERPASS.

REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL EMERGENCY
MANAGER...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE
NATIONAL WEATHER SERVICE.

LAT...LON 4025 9051 4005 9026 3994 9052 3996 9053
      3998 9054 3998 9057 4010 9072
TIME...MOT...LOC 2346Z 238DEG 24KT 3999 9067

$$

GOETSCH
2 follow-up statements
000 
WWUS53 KILX 030011
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
710 PM CDT TUE OCT 2 2007

ILC017-169-030030-
/O.CON.KILX.TO.W.0019.000000T0000Z-071003T0030Z/
CASS-SCHUYLER-
710 PM CDT TUE OCT 2 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR EASTERN
SCHUYLER AND NORTHWESTERN CASS COUNTIES...

AT 709 PM CDT...NWS DOPPLER RADAR INDICATED THAT THE STORM 
CIRCULATION PREVIOUSLY DETECTED HAD WEAKENED. HOWEVER 
NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A NEW 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO THREAT WAS LOCATED 6 MILES SOUTHWEST OF RUSHVILLE...MOVING
EAST AT 30 MPH.

PEOPLE NEAR THESE LOCATIONS ARE STILL THREATENED...
  RUSHVILLE...
  FREDERICK...
  BEARDSTOWN...
  BROWNING...
  RAY...

WHEN A TORNADO WARNING IS ISSUED...IT MEANS THAT STRONG ROTATION HAS
BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON THE GROUND...
OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS
DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE
BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER
UNDER A HIGHWAY OVERPASS.

LAT...LON 4025 9051 4005 9026 3994 9052 3996 9053
      3998 9054 3998 9057 4010 9072
TIME...MOT...LOC 0010Z 250DEG 26KT 4009 9061

$$

GOETSCH
000 
WWUS53 KILX 030019
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
719 PM CDT TUE OCT 2 2007

ILC017-169-030029-
/O.CAN.KILX.TO.W.0019.000000T0000Z-071003T0030Z/
CASS-SCHUYLER-
719 PM CDT TUE OCT 2 2007

...THE TORNADO WARNING FOR EASTERN SCHUYLER AND NORTHWESTERN CASS
COUNTIES IS CANCELLED...

AT 718 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED THAT
THE THUNDERSTORM THAT HAD PROMPTED THE WARNING HAD WEAKENED...THUS
THE WARNING HAS BEEN CANCELLED.

LAT...LON 4025 9051 4005 9026 3994 9052 3996 9053
      3998 9054 3998 9057 4010 9072
TIME...MOT...LOC 0019Z 250DEG 26KT 4011 9053

$$

GOETSCH

Nearby

Tornado Warnings in Illinois, 2007Every tornado warning in 2007Tornadoes in 2007

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.