Alert archive / Illinois / Tornado Warnings in 2007

Tornado Warning 21, NWS St. Louis, MO

September 30, 2007Brown County, Pike County, Illinois

NWS St. Louis, MO issued this tornado warning at Sep 30, 2007, 9:13 PM CDT for Brown County, Pike County, Illinois. It was in force for 26 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
Sep 30, 2007, 9:13 PM CDT (02:13 UTC)
Expired
Sep 30, 2007, 9:39 PM CDT
In force
26 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon

Counties Brown County, IL, Pike County, IL

The radar

The Lincoln radar (KILX), 118 km from the middle of the area, began a volume at 02:15 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.

What was reported inside it

TimeReportWhereRemark
Sep 30, 9:15 PM CDTTORNADO1 Wsw Perry, IL*** 2 INJ *** TORNADO DAMAGE STRETCHED FROM 1 1/2 MILES WEST-SOUTHWEST OF PERRY TO THE SOUTH SIDE OF PERRY...WITH THE WIDTH OF THE DAMAGE VARYING BETWEEN 20 AND 40 YARDS. 2 MINOR INJURIES TO CHILDEN IN MOBILE HOMES ON THE SOUTH SIDE OF PERRY. DAMAGED RATED EF0

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

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.2 hours before the alert went out and 179 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 2007-10-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2007-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2091 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
148 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 010213
TORLSX
ILC009-149-010245-
/O.NEW.KLSX.TO.W.0021.071001T0213Z-071001T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
913 PM CDT SUN SEP 30 2007

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 945 PM CDT

* AT 911 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 6 MILES WEST OF
  GRIGGSVILLE...OR ABOUT 8 MILES NORTH OF PITTSFIELD...MOVING
  NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
RURAL NORTHEASTERN PIKE COUNTY
RURAL SOUTHEASTERN BROWN COUNTY

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

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 3999 9052 3997 9051 3992 9053 3988 9058
      3983 9057 3978 9061 3972 9063 3962 9085
      3976 9097 3976 9092 3984 9092 4000 9055
TIME...MOT...LOC 0213Z 238DEG 50KT 3975 9081

$$

TRUETT
1 follow-up statement
000 
WWUS53 KLSX 010239
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
937 PM CDT SUN SEP 30 2007

ILC009-149-010247-
/O.CAN.KLSX.TO.W.0021.000000T0000Z-071001T0245Z/
PIKE IL-BROWN IL-
937 PM CDT SUN SEP 30 2007

...THE TORNADO WARNING FOR SOUTHEASTERN BROWN AND NORTHEASTERN PIKE
COUNTIES IN WEST CENTRAL ILLINOIS IS CANCELLED...

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

STRONG THUNDERSTORMS WITH WIND GUSTS UP TO 40 MPH AND VERY HEAVY 
RAIN WILL CONTINUE ACROSS PIKE AND BROWN COUNTIES THROUGH 1000 PM.

LAT...LON 3999 9052 3997 9051 3992 9053 3988 9058
      3983 9057 3978 9061 3972 9063 3962 9085
      3976 9097 3976 9092 3984 9092 4000 9055
TIME...MOT...LOC 0237Z 238DEG 50KT 3992 9044

$$

CARNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 30, 8:56 PM CDTSevere Thunderstorm WarningLSXAdams, Brown, Pike34 min
Sep 30, 9:49 PM CDTSevere Thunderstorm WarningLSXCalhoun26 min

Nearby

Tornado Warnings in Illinois, 2007Every tornado warning in 2007Tornadoes in 2007

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.