Alert archive / Missouri / Tornado Warnings in 2010
Tornado Warning 75, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Nov 24, 2010, 11:03 PM CST for Monroe County, Saint Clair County, Illinois; 4 counties in Missouri. It was in force for 42 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
- Nov 24, 2010, 11:03 PM CST (05:03 UTC)
- Expired
- Nov 24, 2010, 11:45 PM CST
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Monroe County, IL, Saint Clair County, IL, Jefferson County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 63 km from the middle of the area, began a volume at 05:05 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 |
|---|---|---|---|
| Nov 24, 11:24 PM CST | TSTM WND GST 45 | Valmeyer, 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 24, 8:23 PM CST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 5.1 hours before the alert went out and 267 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 423 m above ground
- 0-6 km bulk shear
- 97 kt
- 0-1 km storm-relative helicity
- 195 m²/s²
- 0-3 km storm-relative helicity
- 279 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
105
WFUS53 KLSX 250503
TORLSX
ILC133-163-MOC099-186-187-221-250545-
/O.NEW.KLSX.TO.W.0075.101125T0503Z-101125T0545Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1103 PM CST WED NOV 24 2010
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
MONROE COUNTY IN SOUTHWEST ILLINOIS...
CENTRAL ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS...
JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
NORTHWESTERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
NORTHERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 1145 PM CST
* AT 1101 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING SEVERAL
TORNADOES. THESE DANGEROUS STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ANTONIA TO 8 MILES WEST OF POTOSI...AND MOVING EAST
AT 40 TO 50 MPH.
* LOCATIONS IMPACTED INCLUDE...
ANTONIA...HILLSBORO...ARNOLD...POTOSI...BARNHART...DE SOTO...
PEVELY...HERCULANEUM...FESTUS...CRYSTAL CITY...BONNE TERRE...
DESLOGE...WATERLOO...FREEBURG...OLD MINES...MINERAL POINT...
FOUNTAIN...VALMEYER...OLYMPIAN VILLAGE AND NEW DESIGN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.
&&
LAT...LON 3787 9100 3843 9049 3844 9034 3839 9034
3845 9029 3847 8984 3811 9013 3809 9020
3807 9016 3786 9033
TIME...MOT...LOC 0503Z 266DEG 33KT 3841 9044 3791 9090
$$
TRUETT1 follow-up statement
630
WWUS53 KLSX 250526
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1126 PM CST WED NOV 24 2010
ILC133-163-MOC099-186-187-221-250545-
/O.CON.KLSX.TO.W.0075.000000T0000Z-101125T0545Z/
MONROE IL-ST. CLAIR IL-ST. FRANCOIS MO-STE. GENEVIEVE MO-
WASHINGTON MO-JEFFERSON MO-
1126 PM CST WED NOV 24 2010
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN JEFFERSON...
EAST CENTRAL WASHINGTON...NORTHWESTERN STE. GENEVIEVE...ST.
FRANCOIS...CENTRAL ST. CLAIR AND MONROE COUNTIES UNTIL 1145 PM CST...
AT 1123 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING SEVERAL
TORNADOES. THESE DANGEROUS STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM COLUMBIA TO OLYMPIAN VILLAGE TO MINERAL
POINT...MOVING EAST AT 40 TO 45 MPH.
LOCATIONS IMPACTED INCLUDE...
WATERLOO...MILLSTADT...BONNE TERRE...FREEBURG...NEW DESIGN...
SMITHTON...BLOOMSDALE...FOSTER POND...MONROE CITY...MADONNAVILLE...
CHALFIN BRIDGE...VALLES MILL...WARTBURG...MAEYSTOWN...BARR...
BURKSVILLE...FULTS...FLORAVILLE...PADERBORN AND RENAULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.
&&
LAT...LON 3840 9034 3842 9031 3845 9029 3847 8984
3811 9013 3809 9021 3808 9019 3807 9017
3791 9033 3791 9084
TIME...MOT...LOC 0525Z 266DEG 33KT 3842 9018 3816 9036
3795 9072
$$
TRUETTThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 24, 11:46 PM CST | Tornado Warning | LSX | Monroe, Randolph, Saint Clair, Washington | 44 min |
| Nov 25, 3:31 AM CST | Areal Flood Advisory | LSX | Bond, Calhoun, Clinton, Fayette, Jersey, Macoupin and 4 more | 6 hr |
| Nov 24, 7:26 PM CST | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Osage | 34 min |
| Nov 24, 9:06 PM CST | Severe Thunderstorm Warning | LSX | Saint Louis | 24 min |
| Nov 24, 9:26 PM CST | Areal Flood Advisory | LSX | Crawford, Franklin, Gasconade, Jefferson, Osage, Saint Charles and 4 more | 6 hr |
| Nov 24, 9:39 PM CST | Tornado Warning | LSX | Crawford, Franklin, Washington | 51 min |
| Nov 24, 10:25 PM CST | Tornado Warning | LSX | Crawford, Washington | 50 min |
| Nov 24, 10:31 PM CST | Tornado Warning | LSX | Franklin, Jefferson, Washington | 44 min |
| Nov 25, 2:45 PM CST | River Flood Warning | LSX | Osage | 5 hr |
Nearby
Tornado Warnings in Missouri, 2010Tornado Warnings in Illinois, 2010Every tornado warning in 2010Tornadoes in 2010
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.