Alert archive / Illinois / Tornado Warnings in 2003

Tornado Warning 59, NWS St. Louis, MO

June 10, 2003Clinton County, Saint Clair County, Illinois

NWS St. Louis, MO issued this tornado warning at Jun 10, 2003, 6:13 PM CDT for Clinton County, Saint Clair County, Illinois. It was in force for 47 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: Jun 10, 2003, 6:13 PM CDT (23:13 UTC)
Expired: Jun 10, 2003, 7:00 PM CDT
In force: 47 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Clinton County, IL, Saint Clair County, IL

The radar

The St Louis radar (KLSX), 94 km from the middle of the area, began a volume at 23:15 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
Jun 10, 3:40 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.2 hours before the alert went out and 188 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: 77 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 1451 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

008 
WFUS53 KLSX 102313
TORLSX
ILC027-163-110000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
614 PM CDT TUE JUN 10 2003

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS
  NORTHEASTERN ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 700 PM CDT

* AT 614 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR MASCOUTAH. THE STORM
  WAS MOVING EAST AT 60 MPH...AND MAY PRODUCE A TORNADO AT ANY TIME

* LOCATIONS IMPACTED INCLUDE...
  ALBERS
  GERMANTOWN
  BARTELSO
  BREESE
  BECKEMEYER
  CARLYLE
  POSEY

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW MOVE TO A
BASEMENT...UNDERGROUND STORM SHELTER...OR AN INTERIOR ROOM OR HALLWAY
ON THE LOWEST LEVEL OF A STURDY BUILDING.

LAT...LON 3874 8935 3852 8935 3848 8993 3865 8994
          3865 8968 3867 8959 3874 8959

$$

CVKING

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 5:50 PM CDT	Severe Thunderstorm Warning	LSX	Madison	40 min
Jun 10, 5:52 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Saint Clair	38 min
Jun 10, 6:03 PM CDT	Severe Thunderstorm Warning	LSX	Randolph	42 min
Jun 10, 6:07 PM CDT	Tornado Warning	LSX	Monroe, Randolph, Saint Clair	38 min
Jun 10, 6:18 PM CDT	Severe Thunderstorm Warning	LSX	Washington	42 min
Jun 10, 6:27 PM CDT	Flash Flood Warning	LSX	Madison, Saint Clair	4 hr
Jun 10, 6:29 PM CDT	Tornado Warning	LSX	Clinton, Marion	46 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.