Alert archive / Illinois / Tornado Warnings in 2006

Tornado Warning 74, NWS St. Louis, MO

April 2, 2006Randolph County, Illinois

NWS St. Louis, MO issued this tornado warning at Apr 2, 2006, 5:34 PM CDT for Randolph County, Illinois. It was in force for 25 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: Apr 2, 2006, 5:34 PM CDT (22:34 UTC)
Expired: Apr 2, 2006, 5:59 PM CDT
In force: 25 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

County Randolph County, IL

The radar

The St Louis radar (KLSX), 108 km from the middle of the area, began a volume at 22:35 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
Apr 2, 3:50 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.6 hours before the alert went out and 260 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 985 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 297 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.

000 
WFUS53 KLSX 022234
TORLSX
ILC157-022315-
/O.NEW.KLSX.TO.W.0074.060402T2234Z-060402T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
534 PM CDT SUN APR 2 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  RANDOLPH COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 615 PM CDT

* AT 530 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 6 MILES WEST OF CHESTER...
  MOVING NORTHEAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BREMEN...
  STEELEVILLE...
  SPARTA...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR
WEST CENTRAL ILLINOIS AND EASTERN MISSOURI. A TORNADO WATCH ALSO
REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING FOR SOUTHWESTERN
ILLINOIS AND SOUTHEASTERN MISSOURI.

LAT...LON 3796 9002 3781 8990 3783 8970 3807 8961
      3820 8962 3822 8982

$$

GKS

1 follow-up statement

000 
WWUS53 KLSX 022259
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
558 PM CDT SUN APR 2 2006

ILC157-022308-
/O.CAN.KLSX.TO.W.0074.000000T0000Z-060402T2315Z/
RANDOLPH IL-
558 PM CDT SUN APR 2 2006

...THE TORNADO WARNING FOR RANDOLPH COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY.

ADDITIONAL STRONG THUNDERSTORMS ARE POSSIBLE...AND A TORNADO WATCH 
REMAINS IN EFFECT UNTIL 10 PM.

LAT...LON 3796 9002 3781 8990 3783 8970 3807 8961
      3820 8962 3822 8982

$$

GKS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 4:31 PM CDT	Severe Thunderstorm Warning	LSX	Adams	56 min
Apr 2, 4:34 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Pike	56 min
Apr 2, 4:46 PM CDT	Tornado Warning	LSX	Adams, Pike	37 min
Apr 2, 4:58 PM CDT	Severe Thunderstorm Warning	LSX	Brown	46 min
Apr 2, 5:03 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Monroe, Saint Clair	43 min
Apr 2, 5:05 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey, Macoupin	40 min
Apr 2, 5:14 PM CDT	Tornado Warning	LSX	Greene, Jersey, Macoupin	46 min
Apr 2, 5:20 PM CDT	Severe Thunderstorm Warning	LSX	Randolph	40 min
Apr 2, 5:20 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Washington	55 min
Apr 2, 5:41 PM CDT	Tornado Warning	LSX	Montgomery	36 min
Apr 2, 5:43 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	46 min

Nearby

Tornado Warnings in Illinois, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.