Alert archive / Illinois / Tornado Warnings in 2003

Tornado Warning 29, NWS Lincoln, IL

May 10, 2003Mason County, Tazewell County, Illinois

NWS Lincoln, IL issued this tornado warning at May 10, 2003, 9:45 PM CDT for Mason County, Tazewell County, Illinois. It was in force for 60 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, 9:45 PM CDT (02:45 UTC)
Expired: May 10, 2003, 10:45 PM CDT
In force: 60 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

Counties Mason County, IL, Tazewell County, IL

The radar

The Lincoln radar (KILX), 48 km from the middle of the area, began a volume at 02:47 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
May 10, 5:40 PM CDT	Tornado Watch	SPC	5 hr
May 10, 9:10 PM CDT	Tornado Watch	SPC	5 hr
May 10, 9:35 PM CDT	Tornado Watch	SPC	3 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.8 hours before the alert went out and 105 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: 2426 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 784 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 193 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 3.2
Supercell composite: 17.1

Open this sounding in Storm Lab

The text

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

790 
WFUS53 KILX 110245
TORILX
ILC125-179-110345-

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

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  TAZEWELL COUNTY IN CENTRAL ILLINOIS
  MASON COUNTY IN CENTRAL ILLINOIS

* UNTIL 1045 PM CDT

* AT 943 PM CDT...SPOTTERS REPORTED A TORNADO 5 MILES NORTHWEST OF
  GREEN VALLEY...MOVING NORTHEAST AT 40 MPH. ALSO...ANOTHER TORNADIC
  THUNDERSTORM WAS LOCATED 5 MILES SOUTHEAST OF HAVANA. THESE STORMS 
  COULD PRODUCE A TORNADO AT ANY TIME. IN ADDITION TO THE THREAT OF A
  TORNADO...LARGE HAIL AND DAMAGING WINDS CAN BE EXPECTED WITH THESE
  STORMS. GO TO A SAFE PLACE NOW

* THE TORNADO IS EXPECTED TO BE NEAR...
  SOUTH PEKIN
  PEKIN
  MANITO
  TOPEKA
  TREMONT
  FOREST CITY
  MARQUETTE HEIGHTS
  CREVE COEUR
  EAST PEORIA
  MACKINAW
  MORTON

TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD TO
SEE. DO NOT REMAIN IN YOUR CAR OR MOBILE HOME. INSTEAD...TAKE COVER
IN A REINFORCED BUILDING. GO TO A BASEMENT OR INTERIOR ROOM ON THE
LOWEST FLOOR.

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 4031 9008 4022 9006 4048 8927 4073 8948

$$

BYRD

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, 8:46 PM CDT	Tornado Warning	ILX	Knox, Stark	44 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, 9:59 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.