Alert archive / Illinois / Tornado Warnings in 2006

Tornado Warning 71, NWS Lincoln, IL

May 17, 2006Piatt County, Illinois

NWS Lincoln, IL issued this tornado warning at May 17, 2006, 7:11 PM CDT for Piatt County, Illinois. It was in force for 49 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, 7:11 PM CDT (00:11 UTC)
Expired: May 17, 2006, 8:00 PM CDT
In force: 49 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Piatt County, IL

The radar

The Lincoln radar (KILX), 60 km from the middle of the area, began a volume at 00:15 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, 0.2 hours before the alert went out and 7 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 180011
TORILX
ILC147-180100-
/O.NEW.KILX.TO.W.0071.060518T0011Z-060518T0100Z/

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

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL PIATT COUNTY IN CENTRAL ILLINOIS

* UNTIL 800 PM CDT

* AT 711 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING TORNADOES...3 MILES WEST
  OF DE LAND...OR ABOUT 8 MILES NORTHWEST OF MONTICELLO...MOVING
  SOUTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MONTICELLO...
  WHITE HEATH...
  BEMENT...

OTHER LOCATIONS IN THE WARNING INCLUDE...LODGE.

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 4010 8848 3984 8850 4003 8875 4009 8875
      4009 8869 4010 8868 4016 8868 4018 8865
      4021 8864

$$

HJS

2 follow-up statements

000 
WWUS53 KILX 180037
SVSILX

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

ILC147-180100-
/O.CON.KILX.TO.W.0071.000000T0000Z-060518T0100Z/
PIATT-
735 PM CDT WED MAY 17 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR CENTRAL
PIATT COUNTY...

AT 730 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A STORM CAPABLE OF PRODUCING A TORNADO.  THE ORIGINAL STORM 
THAT PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY...YET ANOTHER 
STORM HAS MOVED INTO THE AREA FROM THE NORTHWEST. THIS STORM WAS 
LOCATED NEAR MONTICELLO...MOVING SOUTHEAST AT 45 MPH.

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 4010 8848 3984 8850 4003 8875 4009 8875
      4009 8869 4010 8868 4016 8868 4018 8865
      4021 8864

$$

HJS

000 
WWUS53 KILX 180101
SVSILX

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

ILC147-180111-
/O.EXP.KILX.TO.W.0071.000000T0000Z-060518T0100Z/
PIATT-
801 PM CDT WED MAY 17 2006

...THE TORNADO WARNING FOR CENTRAL PIATT COUNTY EXPIRES AT 800 PM
CDT...

AT 757 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE THUNDERSTORM THAT HAD PROMPTED THE WARNING HAD MOVED OUT OF THE
AREA...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

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 4010 8848 3984 8850 4003 8875 4009 8875
      4009 8869 4010 8868 4016 8868 4018 8865
      4021 8864

$$

HJS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 7:26 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean	64 min
May 17, 7:30 PM CDT	Tornado Warning	ILX	Champaign, Douglas	45 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.