Alert archive / Missouri / Tornado Warnings in 2008
Tornado Warning 84, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Sep 8, 2008, 7:46 PM CDT for Monroe County, Illinois; Jefferson County, Saint Louis County, Missouri. 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 8, 2008, 7:46 PM CDT (00:46 UTC)
- Expired
- Sep 8, 2008, 8:12 PM CDT
- In force
- 26 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Monroe County, IL, Jefferson County, MO, Saint Louis County, MO
The radar
The St Louis radar (KLSX), 42 km from the middle of the area, began a volume at 00:47 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 8, 8:20 PM CDT | HAIL 0.5 | Mehlville, MO | ACTUAL LOCATION 2 MILES ESE OF MEHLVILLE MISSOURI |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 8, 7:04 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.8 hours before the alert went out and 244 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
- 23 J/kg
- Mixed-layer CIN
- -235 J/kg
- Mixed-layer LCL
- 469 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KLSX 090046 TORLSX ILC133-MOC099-189-090130- /O.NEW.KLSX.TO.W.0084.080909T0046Z-080909T0130Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 746 PM CDT MON SEP 8 2008 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI SOUTHERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI NORTHERN MONROE COUNTY IN SOUTHWEST ILLINOIS * UNTIL 830 PM CDT * AT 742 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION 3 MILES NORTHWEST OF ANTONIA...MOVING EAST AT 22 MPH. * LOCATIONS IMPACTED INCLUDE... BARNHART... ARNOLD... OAKVILLE... FOUNTAIN... MEHLVILLE... COLUMBIA... WATERLOO... 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 3851 9026 3833 9007 3830 9058 3849 9058 TIME...MOT...LOC 0046Z 262DEG 19KT 3840 9048 $$ GLASS
2 follow-up statements
000
WWUS53 KLSX 090056
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
756 PM CDT MON SEP 8 2008
ILC133-MOC099-189-090130-
/O.CON.KLSX.TO.W.0084.000000T0000Z-080909T0130Z/
MONROE IL-JEFFERSON MO-ST. LOUIS MO-
756 PM CDT MON SEP 8 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR SOUTHERN
ST. LOUIS...NORTHEASTERN JEFFERSON AND NORTHERN MONROE COUNTIES...
AT 752 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR ANTONIA...AND WAS
MOVING EAST AT 22 MPH.
LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...KIMMSWICK...
ARNOLD...OAKVILLE...FOUNTAIN...MEHLVILLE...COLUMBIA...NEW HANDOVER
AND WATERLOO.
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
PENNY SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
LAT...LON 3831 9050 3849 9052 3849 9050 3850 9050
3850 9044 3850 9043 3850 9037 3851 9026
3833 9007
TIME...MOT...LOC 0056Z 262DEG 19KT 3841 9041
$$
GLASS000
WWUS53 KLSX 090112
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
812 PM CDT MON SEP 8 2008
ILC133-MOC099-189-090120-
/O.CAN.KLSX.TO.W.0084.000000T0000Z-080909T0130Z/
MONROE IL-JEFFERSON MO-ST. LOUIS MO-
810 PM CDT MON SEP 8 2008
...THE TORNADO WARNING FOR SOUTHERN ST. LOUIS...NORTHEASTERN
JEFFERSON AND NORTHERN MONROE COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE OR TORNADIC.
A STRONG STORM WILL STILL IMPACT EXTREME SOUTHEAST ST LOUIS COUNTY
AND NORTHERN MONROE COUNTY THROUGH 830 PM...WITH HEAVY RAIN AND HAIL
UP TO ONE HALF INCH IN DIAMETER.
ADDITIONAL STRONG THUNDERSTORMS ARE POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM.
LAT...LON 3831 9050 3849 9052 3849 9050 3850 9050
3850 9044 3850 9043 3850 9037 3851 9026
3833 9007
TIME...MOT...LOC 0110Z 262DEG 19KT 3842 9032
$$
GLASSThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 7:12 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison | 48 min |
| Sep 8, 7:27 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 48 min |
| Sep 8, 7:40 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Montgomery | 50 min |
| Sep 8, 7:58 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Madison, Saint Clair | 47 min |
| Sep 9, 4:00 AM CDT | Dense Fog Advisory | LSX | Adams, Brown, Pike | 5 hr |
Nearby
Tornado Warnings in Missouri, 2008Tornado 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.