Alert archive / Illinois / Tornado Warnings in 2008

Tornado Warning 49, NWS St. Louis, MO

June 4, 2008Randolph County, Saint Clair County, Washington County, Illinois

NWS St. Louis, MO issued this tornado warning at Jun 4, 2008, 3:39 AM CDT for Randolph County, Saint Clair County, Washington County, Illinois. It was in force for 21 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 4, 2008, 3:39 AM CDT (08:39 UTC)
Expired
Jun 4, 2008, 4:00 AM CDT
In force
21 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon

Counties Randolph County, IL, Saint Clair County, IL, Washington County, IL

The radar

The St Louis radar (KLSX), 105 km from the middle of the area, began a volume at 08:42 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.

What was reported inside it

TimeReportWhereRemark
Jun 4, 3:48 AM CDTTSTM WND GST 50Lively Grove, IL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 4, 2:06 AM CDTTornado WatchSPC5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 8.7 hours before the alert went out and 238 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2008-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2538 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2008-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 207 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2538 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
775 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
207 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
3.9
Supercell composite
14.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 040840
TORLSX
ILC157-163-189-040900-
/O.NEW.KLSX.TO.W.0049.080604T0839Z-080604T0900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
339 AM CDT WED JUN 4 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN WASHINGTON COUNTY IN SOUTH CENTRAL ILLINOIS
  NORTHEASTERN RANDOLPH COUNTY IN SOUTHWEST ILLINOIS
  SOUTHEASTERN ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 400 AM CDT

* AT 338 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR MARISSA...OR ABOUT
  7 MILES NORTHWEST OF SPARTA.  A SECOND AREA OF STRONG ROTATION WAS
  LOCATED 5 MILES SOUTHWEST OF SPARTA.  BOTH WERE MOVING EAST AT
  50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  TILDEN...
  COULTERVILLE...
  LIVELY GROVE...

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.

LAT...LON 3804 8961 3804 8975 3837 8981 3840 8959
TIME...MOT...LOC 0839Z 275DEG 44KT 3822 8978

$$

BRITT
1 follow-up statement
000 
WWUS53 KLSX 040902
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
401 AM CDT WED JUN 4 2008

ILC157-163-189-040911-
/O.EXP.KLSX.TO.W.0049.000000T0000Z-080604T0900Z/
RANDOLPH IL-WASHINGTON IL-ST. CLAIR IL-
401 AM CDT WED JUN 4 2008

...THE TORNADO WARNING FOR SOUTHEASTERN ST. CLAIR...SOUTHWESTERN
WASHINGTON AND NORTHEASTERN RANDOLPH COUNTIES EXPIRES AT 400 AM
CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

A SEPARATE TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL AND EASTERN 
WASHINGTON COUNTY UNTIL 430 AM.

ADDITIONAL STRONG THUNDERSTORMS ARE POSSIBLE...AND A TORNADO WATCH 
REMAINS IN EFFECT UNTIL 9 AM CDT.

LAT...LON 3804 8961 3804 8975 3837 8981 3840 8959
TIME...MOT...LOC 0839Z 275DEG 44KT 3822 8978

$$

BRITT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 7:41 PM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Pike49 min
Jun 3, 7:57 PM CDTTornado WarningLSXCalhoun, Greene, Pike48 min
Jun 3, 8:11 PM CDTTornado WarningLSXGreene, Jersey49 min
Jun 3, 8:35 PM CDTFlash Flood WarningLSXCalhoun, Greene, Pike4 hr
Jun 3, 8:52 PM CDTTornado WarningLSXGreene, Macoupin38 min
Jun 3, 9:06 PM CDTTornado WarningLSXCalhoun, Greene, Jersey39 min
Jun 3, 9:43 PM CDTTornado WarningLSXGreene, Jersey, Macoupin47 min
Jun 3, 9:53 PM CDTRiver Flood WarningLSXSaint Clair36 days
Jun 3, 10:43 PM CDTSevere Thunderstorm WarningLSXMacoupin, Montgomery35 min
Jun 3, 11:10 PM CDTTornado WarningLSXPike50 min
Jun 4, 12:23 AM CDTFlash Flood WarningLSXPike6 hr
Jun 4, 2:55 AM CDTSevere Thunderstorm WarningLSXMonroe, Randolph, Saint Clair50 min
Jun 4, 3:11 AM CDTTornado WarningLSXMonroe, Randolph, Saint Clair34 min
Jun 4, 3:53 AM CDTTornado WarningLSXWashington28 min
Jun 4, 1:31 PM CDTSevere Thunderstorm WarningLSXFayette14 min

Nearby

Tornado Warnings in Illinois, 2008Every tornado warning in 2008Tornadoes in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.