Alert archive / Illinois / Tornado Warnings in 2008

Tornado Warning 69, NWS St. Louis, MO

July 8, 2008Brown County, Illinois

NWS St. Louis, MO issued this tornado warning at Jul 8, 2008, 3:19 PM CDT for Brown County, Illinois. It was in force for 26 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
Jul 8, 2008, 3:19 PM CDT (20:19 UTC)
Expired
Jul 8, 2008, 3:45 PM CDT
In force
26 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon

County Brown County, IL

The radar

The Lincoln radar (KILX), 112 km from the middle of the area, began a volume at 20:20 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.

IssuedProductOfficeLasted
Jul 8, 1:54 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.3 hours before the alert went out and 174 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 12:00Z on 2008-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1492 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 12:00Z on 2008-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.193958Sfc1 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
1492 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 082019
TORLSX
ILC009-082045-
/O.NEW.KLSX.TO.W.0069.080708T2019Z-080708T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
319 PM CDT TUE JUL 8 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BROWN COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 345 PM CDT

* AT 316 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 6 MILES SOUTHEAST OF MOUNT
  STERLING...OR ABOUT 17 MILES SOUTHWEST OF RUSHVILLE...MOVING EAST
  AT 29 MPH.

* LOCATIONS IMPACTED INCLUDE...
RURAL EASTERN BROWN COUNTY

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 4000 9060 3999 9060 3999 9051 3997 9051
      3995 9053 3991 9054 3988 9058 3984 9058
      3984 9080 3985 9081 3999 9083 4001 9062
TIME...MOT...LOC 2019Z 263DEG 25KT 3991 9069

$$

CARNEY
1 follow-up statement
000 
WWUS53 KLSX 082040
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
340 PM CDT TUE JUL 8 2008

ILC009-082050-
/O.EXP.KLSX.TO.W.0069.000000T0000Z-080708T2045Z/
BROWN IL-
340 PM CDT TUE JUL 8 2008

...THE TORNADO WARNING FOR SOUTHEASTERN BROWN COUNTY EXPIRES AT 345
PM CDT...

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

LAT...LON 4000 9060 3999 9060 3999 9051 3997 9051
      3995 9053 3991 9054 3988 9058 3984 9058
      3984 9080 3985 9081 3999 9083 4001 9062
TIME...MOT...LOC 2040Z 263DEG 25KT 3993 9050

$$

CARNEY/MCKINNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 1:45 PM CDTFlash Flood WatchLSXBond, Calhoun, Clinton, Fayette, Greene, Jersey and 9 more14 hr
Jul 8, 2:45 PM CDTSevere Thunderstorm WarningLSXAdams, Pike45 min
Jul 8, 3:28 PM CDTAreal Flood AdvisoryLSXAdams4 hr
Jul 8, 3:29 PM CDTTornado WarningLSXPike46 min
Jul 8, 4:31 PM CDTAreal Flood AdvisoryLSXMacoupin, Montgomery3 days
Jul 8, 4:36 PM CDTSevere Thunderstorm WarningLSXGreene, Macoupin, Montgomery39 min
Jul 8, 5:00 PM CDTTornado WarningLSXMacoupin, Montgomery35 min
Jul 8, 5:20 PM CDTSevere Thunderstorm WarningLSXBond, Jersey, Macoupin, Madison, Montgomery55 min
Jul 8, 5:34 PM CDTSevere Thunderstorm WarningLSXMacoupin, Montgomery41 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.