Alert archive / Illinois / Tornado Warnings in 2002

Tornado Warning 1, NWS Lincoln, IL

April 12, 2002Champaign County, Douglas County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 12, 2002, 3:55 PM CDT for Champaign County, Douglas County, Illinois. It was in force for 35 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
Apr 12, 2002, 3:55 PM CDT (20:55 UTC)
Expired
Apr 12, 2002, 4:30 PM CDT
In force
35 min
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

Counties Champaign County, IL, Douglas County, IL

The radar

The Lincoln radar (KILX), 100 km from the middle of the area, began a volume at 20:57 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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.9 hours before the alert went out and 45 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 2002-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 215 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 2002-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
215 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1073 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KILX 122055
TORSPI
ILC019-041-122130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
355 PM CDT FRI APR 12 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  CHAMPAIGN COUNTY IN EAST CENTRAL ILLINOIS
  DOUGLAS COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 430 PM CDT

* AT 355 PM CDT...SPOTTERS REPORTED A FUNNEL CLOUD OVER TUSCOLA...
  MOVING NORTHEAST AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  TUSCOLA
  VILLA GROVE
  PESOTUM
  SIDNEY
  BROADLANDS
  HOMER
  
IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IN A BASEMENT OR
INTERIOR ROOM ON THE LOWEST FLOOR. VEHICLES AND MOBILE HOMES SHOULD
BE ABANDONED FOR A SAFER SHELTER.

FUNNEL CLOUDS WITH THIS STORM MAY TOUCH DOWN AT ANY TIME. DO NOT WAIT
FOR THE FUNNEL CLOUD TO TOUCH DOWN.

REPORT SEVERE WEATHER OR ANY STORM DAMAGE TO YOUR LOCAL ESDA...OR THE
NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER
SERVICE. STAY TUNED FOR LATER STATEMENTS.

LAT...LON 3984 8843 3970 8837 3982 8796 4012 8795

BYRD
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 2:01 PM CDTSevere Thunderstorm WarningILXVermilion44 min
Apr 12, 2:30 PM CDTSevere Thunderstorm WarningILXChristian, Shelby45 min
Apr 12, 3:09 PM CDTSevere Thunderstorm WarningILXMoultrie, Shelby51 min
Apr 12, 3:17 PM CDTSevere Thunderstorm WarningILXEffingham28 min
Apr 12, 3:37 PM CDTSevere Thunderstorm WarningILXChampaign, Douglas, Edgar, Vermilion53 min
Apr 12, 3:47 PM CDTSevere Thunderstorm WarningILXCumberland, Effingham43 min
Apr 12, 4:06 PM CDTSevere Thunderstorm WarningILXColes54 min
Apr 12, 4:31 PM CDTSevere Thunderstorm WarningILXEdgar, Vermilion59 min
Apr 12, 5:13 PM CDTSevere Thunderstorm WarningILXClay47 min
Apr 12, 5:21 PM CDTFlash Flood WarningILXEdgar, Vermilion4 hr
Apr 12, 5:25 PM CDTSevere Thunderstorm WarningILXRichland50 min

Nearby

Tornado Warnings in Illinois, 2002Every tornado warning in 2002Tornadoes in 2002

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.