Alert archive / Illinois / Tornado Warnings in 2007
Tornado Warning 18, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Sep 6, 2007, 2:27 PM CDT for Jersey County, Macoupin County, Illinois. It was in force for 34 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 6, 2007, 2:27 PM CDT (19:27 UTC)
- Expired
- Sep 6, 2007, 3:01 PM CDT
- In force
- 34 min
- Issued by
- NWS St. Louis, MO
- Area
- Counties, with a storm outline in the text
Counties Jersey County, IL, Macoupin County, IL
The radar
The St Louis radar (KLSX), 78 km from the middle of the area, began a volume at 19:28 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 6, 2:45 PM CDT | FUNNEL CLOUD | Medora, IL |
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 12:00Z, 7.5 hours before the alert went out and 163 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.
- Mixed-layer CAPE
- 134 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 772 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KLSX 061929 TORLSX ILC083-117-062015- /O.NEW.KLSX.TO.W.0018.070906T1927Z-070906T2015Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 227 PM CDT THU SEP 6 2007 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN JERSEY COUNTY IN SOUTHWEST ILLINOIS WESTERN MACOUPIN COUNTY IN SOUTHWEST ILLINOIS * UNTIL 315 PM CDT * AT 223 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION 8 MILES SOUTH OF KEMPER... OR ABOUT 7 MILES EAST OF JERSEYVILLE...MOVING NORTHEAST AT 20 MPH. A FUNNEL CLOUD WAS REPORTED BY LAW ENFORCEMENT AT NEAR THE MACOUPIN JERSEY COUNTY LINE AT 225 PM. * LOCATIONS IMPACTED INCLUDE... KEMPER... PIASA... SUMMERVILLE... 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 3935 9003 3924 8988 3904 9021 3914 9027 TIME...MOT...LOC 1927Z 225DEG 20KT 3912 9018 $$ BRITT
2 follow-up statements
000
WWUS53 KLSX 061948
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
244 PM CDT THU SEP 6 2007
ILC083-061954-
/O.CAN.KLSX.TO.W.0018.000000T0000Z-070906T2015Z/
JERSEY IL-
244 PM CDT THU SEP 6 2007
...THE TORNADO WARNING FOR NORTHEASTERN JERSEY COUNTY IS CANCELLED...
THE STORM THAT PRODUCED THE TORNADO HAS MOVED OUT OF THE COUNTY.
LAT...LON 3924 8989 3913 9015 3924 9016 3926 9014
3932 9005 3933 9005 3934 9004 3935 9002
TIME...MOT...LOC 1944Z 220DEG 20KT 3921 9012
$$
ILC117-062015-
/O.CON.KLSX.TO.W.0018.000000T0000Z-070906T2015Z/
MACOUPIN IL-
244 PM CDT THU SEP 6 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR WESTERN
MACOUPIN COUNTY...
AT 242 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH ROTATION NEAR MEDORA...OR ABOUT
12 MILES NORTHEAST OF JERSEYVILLE...MOVING NORTHEAST AT 20 MPH.
LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...CHESTERFIELD. AT
246 PM CDT...THE MEDORA FIRE DEPARTMENT REPORTED A FUNNEL CLOUD
NORTH MEDORA.
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.
LAT...LON 3924 8989 3913 9015 3924 9016 3926 9014
3932 9005 3933 9005 3934 9004 3935 9002
TIME...MOT...LOC 1944Z 220DEG 20KT 3921 9012
$$
BRITT000
WWUS53 KLSX 062001
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
300 PM CDT THU SEP 6 2007
ILC117-062010-
/O.CAN.KLSX.TO.W.0018.000000T0000Z-070906T2015Z/
MACOUPIN IL-
300 PM CDT THU SEP 6 2007
...THE TORNADO WARNING FOR WESTERN MACOUPIN COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE.
LAT...LON 3924 8989 3913 9015 3924 9016 3926 9014
3932 9005 3933 9005 3934 9004 3935 9002
TIME...MOT...LOC 2000Z 220DEG 20KT 3928 9005
$$
BRITTThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 5:35 PM CDT | Tornado Warning | LSX | Randolph | 40 min |
| Sep 6, 6:01 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Madison | 44 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.