Alert archive / Illinois / Tornado Warnings in 2003

Tornado Warning 27, NWS Lincoln, IL

May 10, 2003Knox County, Stark County, Illinois

NWS Lincoln, IL issued this tornado warning at May 10, 2003, 8:46 PM CDT for Knox County, Stark County, Illinois. It was in force for 44 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 10, 2003, 8:46 PM CDT (01:46 UTC)
Expired: May 10, 2003, 9:30 PM CDT
In force: 44 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

Counties Knox County, IL, Stark County, IL

The radar

The Quad Cities radar (KDVN), 77 km from the middle of the area, began a volume at 01:45 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 10, 3:50 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 1.8 hours before the alert went out and 73 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: 1566 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 910 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 234 m²/s²
0-3 km storm-relative helicity: 259 m²/s²
Significant tornado parameter: 2.8
Supercell composite: 12.7

Open this sounding in Storm Lab

The text

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

247 
WFUS53 KILX 110146
TORILX
ILC095-175-110230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
845 PM CDT SAT MAY 10 2003

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  STARK COUNTY IN NORTH CENTRAL ILLINOIS
  KNOX COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 930 PM CDT

* AT 845 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG
  ROTATION OVER VICTORIA...OR ABOUT 16 MILES SOUTHWEST OF KEWANEE...
  MOVING NORTHEAST AT 40 MPH. THIS STORM COULD PRODUCE A TORNADO AT
  ANY TIME. IN ADDITION TO THE THREAT OF A TORNADO...LARGE HAIL AND
  DAMAGING WINDS CAN BE EXPECTED WITH THIS STORM. GO TO A SAFE PLACE
  NOW

* THE TORNADO IS EXPECTED TO BE NEAR...
  LA FAYETTE
  TOULON
  ELMIRA
  WYOMING
  OSCEOLA
  CASTLETON
  BRADFORD

A DOPPLER RADAR DETECTED TORNADO MEANS THAT THERE IS STRONG ROTATION
WITHIN 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 AND AWAY FROM WINDOWS.

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 4109 9023 4095 9006 4104 8964 4124 8965
          4125 8989

$$

KH

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 7:38 PM CDT	Tornado Warning	ILX	Schuyler	52 min
May 10, 7:53 PM CDT	Tornado Warning	ILX	Fulton, Knox	52 min
May 10, 8:19 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham	41 min
May 10, 8:25 PM CDT	Tornado Warning	ILX	Schuyler	50 min
May 10, 8:45 PM CDT	Tornado Warning	ILX	Fulton, Mason	60 min
May 10, 8:46 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Jasper	59 min
May 10, 9:01 PM CDT	Severe Thunderstorm Warning	ILX	Effingham	59 min
May 10, 9:19 PM CDT	Tornado Warning	ILX	Peoria, Tazewell	56 min
May 10, 9:29 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	61 min
May 10, 9:30 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	60 min
May 10, 9:45 PM CDT	Tornado Warning	ILX	Mason, Tazewell	60 min
May 10, 9:59 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	61 min
May 10, 10:06 PM CDT	Tornado Warning	ILX	Woodford	54 min
May 10, 10:35 PM CDT	Tornado Warning	ILX	McLean	70 min
May 10, 10:43 PM CDT	Tornado Warning	ILX	Marshall	47 min
May 10, 11:03 PM CDT	Tornado Warning	ILX	Woodford	42 min

Nearby

Tornado Warnings in Illinois, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.