Alert archive / Illinois / Tornado Warnings in 2003

Tornado Warning 54, NWS Lincoln, IL

May 30, 2003Mason County, Illinois

NWS Lincoln, IL issued this tornado warning at May 30, 2003, 7:55 PM CDT for Mason County, Illinois. It was in force for 50 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 30, 2003, 7:55 PM CDT (00:55 UTC)
Expired: May 30, 2003, 8:45 PM CDT
In force: 50 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Mason County, IL

The radar

The Lincoln radar (KILX), 48 km from the middle of the area, began a volume at 00:56 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 30, 3:45 PM CDT	Tornado Watch	SPC	5 hr
May 30, 7:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.9 hours before the alert went out and 109 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: 142 J/kg
Mixed-layer CIN: -148 J/kg
Mixed-layer LCL: 1329 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 190 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

431 
WFUS53 KILX 310055
TORILX
ILC125-310145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
755 PM CDT FRI MAY 30 2003

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 845 PM CDT

* AT 755 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG
  ROTATION OVER EASTON...OR ABOUT 10 MILES NORTHWEST OF MASON CITY...
  MOVING EAST AT 25 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

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.

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 4032 9000 4017 8988 4019 8967 4040 8983

$$

NNNN

HALL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 7:35 PM CDT	Tornado Warning	ILX	Marshall	40 min
May 30, 7:49 PM CDT	Tornado Warning	ILX	Woodford	41 min
May 30, 8:06 PM CDT	Tornado Warning	ILX	Logan, Tazewell	39 min
May 30, 8:09 PM CDT	Tornado Warning	ILX	McLean	51 min
May 30, 8:42 PM CDT	Tornado Warning	ILX	DeWitt, Logan	48 min
May 30, 9:15 PM CDT	Tornado Warning	ILX	Piatt	45 min
May 30, 9:20 PM CDT	Tornado Warning	ILX	Macon	25 min
May 30, 9:22 PM CDT	Tornado Warning	ILX	Macon	23 min
May 30, 9:27 PM CDT	Tornado Warning	ILX	Champaign, Vermilion	63 min
May 30, 9:50 PM CDT	Tornado Warning	ILX	Douglas	40 min
May 30, 10:15 PM CDT	Tornado Warning	ILX	Edgar	45 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.