Alert archive / Illinois / Tornado Warnings in 2004

Tornado Warning 38, NWS St. Louis, MO

May 30, 2004Fayette County, Montgomery County, Illinois

NWS St. Louis, MO issued this tornado warning at May 30, 2004, 4:48 PM CDT for Fayette County, Montgomery County, Illinois. It was in force for 42 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, 2004, 4:48 PM CDT (21:48 UTC)
Expired: May 30, 2004, 5:30 PM CDT
In force: 42 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Fayette County, IL, Montgomery County, IL

The radar

The Lincoln radar (KILX), 118 km from the middle of the area, began a volume at 21:51 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, 1:05 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.8 hours before the alert went out and 127 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: 1629 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 569 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 8.9

Open this sounding in Storm Lab

The text

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

443 
WFUS53 KLSX 302148
TORLSX
ILC051-135-302230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
448 PM CDT SUN MAY 30 2004

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS
  SOUTHEASTERN MONTGOMERY COUNTY IN SOUTH CENTRAL ILLINOIS

* UNTIL 530 PM CDT

* AT 448 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR VAN BURENSBURG. THE
  STORM WAS MOVING NORTHEAST AT 30 MPH...AND MAY PRODUCE A TORNADO AT
  ANY TIME

* LOCATIONS IMPACTED INCLUDE...
  BINGHAM
  BAYLE CITY
  RAMSEY

THIS TORNADO WARNING IS AN UPGRADE TO THE SEVERE THUNDERSTORM WARNING
PREVIOUSLY ISSUED FOR THE WARNED AREA.

THIS IS AN EXTREMELY DANGEROUS AND LIFE-THREATENING SITUATION. MOVE
IMMEDIATELY TO A BASEMENT OR BELOW GROUND SHELTER. IF UNDERGROUND
SHELTER IS NOT AVAILABLE...TAKE COVER ON THE LOWEST FLOOR OF A STURDY
BUILDING OR HOME IN A SMALL INTERIOR ROOM...SUCH AS A CLOSET OR
HALLWAY. HIDE UNDER A MATRESS OR USE BLANKETS OR PILLOWS TO COVER
YOUR BODY.

LAT...LON 3909 8946 3900 8926 3894 8921 3907 8881
          3919 8882 3927 8915

$$

TRUETT/GKS

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 3:27 PM CDT	Tornado Warning	LSX	Adams	48 min
May 30, 4:04 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Madison, Montgomery	41 min
May 30, 4:06 PM CDT	Severe Thunderstorm Warning	LSX	Brown	39 min
May 30, 4:09 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Saint Clair	51 min
May 30, 4:13 PM CDT	Tornado Warning	LSX	Bond, Madison, Montgomery	47 min
May 30, 4:20 PM CDT	Tornado Warning	LSX	Bond, Clinton, Madison, Saint Clair	40 min
May 30, 4:32 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	28 min
May 30, 4:44 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Montgomery	46 min
May 30, 4:47 PM CDT	Tornado Warning	LSX	Brown	28 min
May 30, 4:51 PM CDT	Tornado Warning	LSX	Monroe	39 min
May 30, 4:55 PM CDT	Tornado Warning	LSX	Bond, Clinton, Fayette, Marion	50 min
May 30, 5:09 PM CDT	Severe Thunderstorm Warning	LSX	Madison	36 min
May 30, 5:19 PM CDT	Severe Thunderstorm Warning	LSX	Saint Clair	41 min
May 30, 5:44 PM CDT	Tornado Warning	LSX	Fayette	31 min
May 30, 5:50 PM CDT	Severe Thunderstorm Warning	LSX	Macoupin, Montgomery	25 min
May 30, 6:14 PM CDT	Tornado Warning	LSX	Washington	46 min
May 30, 6:36 PM CDT	Tornado Warning	LSX	Marion	39 min

Nearby

Tornado Warnings in Illinois, 2004 Every tornado warning in 2004 Tornadoes 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.