Alert archive / Illinois / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 39, NWS Lincoln, IL

May 23, 2004Shelby County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 23, 2004, 8:13 PM CDT for Shelby County, Illinois. It was in force for 62 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 23, 2004, 8:13 PM CDT (01:13 UTC)
Expired: May 23, 2004, 9:15 PM CDT
In force: 62 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Shelby County, IL

The radar

The Lincoln radar (KILX), 83 km from the middle of the area, began a volume at 01:16 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 23, 5:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.2 hours before the alert went out and 74 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: 2833 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 727 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 2.9
Supercell composite: 13.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KILX 240113
SVRILX
ILC173-240215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
813 PM CDT SUN MAY 23 2004

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SHELBY COUNTY IN CENTRAL ILLINOIS

* UNTIL 915 PM CDT

* AT 813 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF MOWEAQUA...OR ABOUT 9
  MILES EAST OF TAYLORVILLE...MOVING EAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WESTERVELT
  FINDLAY
  SHELBYVILLE
  WINDSOR

THIS STORM IS CAPABLE OF PRODUCING WINDS IN EXCESS OF 60 MPH...
DAMAGING HAIL...FREQUENT LIGHTNING...AND VERY HEAVY RAIN. TAKE
SHELTER IN A STURDY BUILDING AND STAY 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 3943 8903 3965 8903 3965 8882 3957 8880
          3952 8866 3935 8849

$$

BARKER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 7:05 PM CDT	Severe Thunderstorm Warning	ILX	Macon	55 min
May 23, 7:19 PM CDT	Tornado Warning	ILX	Shelby	56 min
May 23, 7:28 PM CDT	Tornado Warning	ILX	Sangamon	32 min
May 23, 7:30 PM CDT	Tornado Warning	ILX	Moultrie	60 min
May 23, 7:39 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Woodford	66 min
May 23, 7:39 PM CDT	Tornado Warning	ILX	Christian	66 min
May 23, 7:46 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell	59 min
May 23, 7:51 PM CDT	Tornado Warning	ILX	McLean, Tazewell	54 min
May 23, 7:52 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Douglas	53 min
May 23, 8:01 PM CDT	Tornado Warning	ILX	Coles	44 min
May 23, 8:18 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	57 min
May 23, 8:23 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	52 min
May 23, 8:33 PM CDT	Severe Thunderstorm Warning	ILX	Clark	57 min
May 23, 8:45 PM CDT	Tornado Warning	ILX	Christian	60 min
May 23, 9:01 PM CDT	Severe Thunderstorm Warning	ILX	Coles	59 min
May 23, 9:10 PM CDT	Flash Flood Warning	ILX	Christian	6 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2004 Every severe thunderstorm warning in 2004

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.