Alert archive / Illinois / Tornado Warnings in 2006

Tornado Warning 72, NWS Lincoln, IL

May 17, 2006Champaign County, Douglas County, Illinois

NWS Lincoln, IL issued this tornado warning at May 17, 2006, 7:30 PM CDT for Champaign County, Douglas County, Illinois. It was in force for 45 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: May 17, 2006, 7:30 PM CDT (00:30 UTC)
Expired: May 17, 2006, 8:15 PM CDT
In force: 45 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), 98 km from the middle of the area, began a volume at 00:31 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.

Issued	Product	Office	Lasted
May 17, 2:46 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.5 hours before the alert went out and 44 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 396 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1735 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 221 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 7.5

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KILX 180030
TORILX
ILC019-041-180115-
/O.NEW.KILX.TO.W.0072.060518T0030Z-060518T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
730 PM CDT WED MAY 17 2006

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 815 PM CDT

* AT 730 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING TORNADOES...NEAR
  IVESDALE...OR ABOUT 7 MILES SOUTHEAST OF MONTICELLO...MOVING
  SOUTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PESOTUM...
  GARRETT...
  BOURBON...
  TUSCOLA...
  VILLA GROVE...
  CAMARGO...
  MURDOCK...
  ARCOLA...

OTHER LOCATIONS IN THE WARNING INCLUDE...TOLONO AND HINDSBORO.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. THE STORM MAY
NOT BE PRODUCING A TORNADO AT THE MOMENT...BUT IS EXPECTED TO DURING
THE WARNING PERIOD. FOR YOUR SAFETY...GO INDOORS NOW TO AN INTERIOR
ROOM OR A BASEMENT...AND STAY AWAY FROM WINDOWS.

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 3991 8811 3984 8804 3977 8799 3968 8807
      3969 8832 3983 8845 3985 8846 4008 8846
      4010 8843

$$

HJS

1 follow-up statement

000 
WWUS53 KILX 180115
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
814 PM CDT WED MAY 17 2006

ILC019-041-180124-
/O.EXP.KILX.TO.W.0072.000000T0000Z-060518T0115Z/
CHAMPAIGN-DOUGLAS-
814 PM CDT WED MAY 17 2006

...THE TORNADO WARNING FOR SOUTHWESTERN CHAMPAIGN AND DOUGLAS
COUNTIES EXPIRES AT 815 PM CDT...

AT 808 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE THUNDERSTORM THAT HAD PROMPTED THE WARNING HAD WEAKENED...THUS
THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WARNING IS STILL IN EFFECT FOR SOUTHWEST 
DOUGLAS COUNTY UNTIL 915 PM. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM. REMAIN 
ALERT TO THE POSSIBILITY OF MORE SEVERE WEATHER.

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 3991 8811 3984 8804 3977 8799 3968 8807
      3969 8832 3983 8845 3985 8846 4008 8846
      4010 8843

$$

HJS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 7:11 PM CDT	Tornado Warning	ILX	Piatt	49 min
May 17, 7:26 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean	64 min
May 17, 7:42 PM CDT	Severe Thunderstorm Warning	ILX	Macon, Moultrie, Piatt	63 min
May 17, 8:08 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Douglas, Moultrie	42 min
May 17, 8:43 PM CDT	Severe Thunderstorm Warning	ILX	Clark	47 min

Nearby

Tornado Warnings in Illinois, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.