Alert archive / Missouri / Tornado Warnings in 2011
Tornado Warning 6, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Feb 27, 2011, 11:18 PM CST for Madison County, Monroe County, Saint Clair County, Illinois; 4 counties in Missouri. It was in force for 42 min. 31 reports 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
- Feb 27, 2011, 11:18 PM CST (05:18 UTC)
- Expired
- Feb 28, 2011, 12:00 AM CST
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Madison County, IL, Monroe County, IL, Saint Clair County, IL, City of Saint Louis, MO, Jefferson County, MO, Saint Charles County, MO, Saint Louis County, MO
The radar
The St Louis radar (KLSX), 58 km from the middle of the area, began a volume at 05:18 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 |
|---|---|---|---|
| Feb 27, 11:22 PM CST | TSTM WND GST 67 | 1 Ssw Hazelwood, MO | |
| Feb 27, 11:22 PM CST | TSTM WND GST 70 | 5 Ene Maryland Heights, MO | 70 MPH WINDS REPORTED AT 270 AND 70 WITH LARGE HAIL OF UNKNOWN SIZE |
| Feb 27, 11:22 PM CST | HAIL 0 | 5 Ene Maryland Heights, MO | 70 MPH WINDS REPORTED AT 270 AND 70 WITH LARGE HAIL OF UNKNOWN SIZE |
| Feb 27, 11:23 PM CST | TSTM WND GST 50 | Des Peres, MO | 50 MPH WINDS AND HALF INCH HAIL REPORTED AT BIG BEND ROAD AND BARRETT STATION |
| Feb 27, 11:23 PM CST | HAIL 0.5 | Des Peres, MO | 50 MPH WINDS AND HALF INCH HAIL REPORTED AT BIG BEND ROAD AND BARRETT STATION |
| Feb 27, 11:25 PM CST | TSTM WND DMG | 1 Nne Ferguson, MO | NUMEROUS 4 TO 5 INCH DIAMTER LIMBS DOWN... EST 2 FOOT DIAMETER TREE BRANCH DOWN. |
| Feb 27, 11:25 PM CST | TSTM WND DMG | Clayton, MO | BIG BEND BLVD CLOSED IN CLAYTON DUE TO NUMEROUS POWER POLES DOWN. |
| Feb 27, 11:25 PM CST | TSTM WND GST 50 | Brentwood, MO | MANCHESTER AND MC KNIGHT RD |
| Feb 27, 11:25 PM CST | TSTM WND GST 50 | Manchester, MO | MANCHESTER AND MC NIGHT RD |
| Feb 27, 11:25 PM CST | HAIL 0.25 | Brentwood, MO | MANCHESTER AND MC KIGHT RD |
| Feb 27, 11:25 PM CST | HAIL 0.25 | Manchester, MO | MANCHESTER AND MC NIGHT RD |
| Feb 27, 11:27 PM CST | TSTM WND DMG | St. Louis, MO | I-44 CLOSED IN BOTH DIRECTIONS BETWEEN HAMPTON AND KINGS HIGHWAY...DEBRIS IN THE HIGHWAY. |
| Feb 27, 11:27 PM CST | TORNADO | Mehlville, MO | STORM SPOTTER REPORTS FUNNEL CLOUD NEAR CONCORD VILLAGE CAUSING POWER FLASHES |
| Feb 27, 11:29 PM CST | TSTM WND GST 68 | Kirkwood, MO | PEA SIZEE HAIL |
| Feb 27, 11:30 PM CST | TSTM WND DMG | 2 Sw Oakville, MO | LARGE PINE TREE 35 TO 40 FOOT TALL UPROOTED. ALSO ONE STORAGE SHED OVERTURNED. |
| Feb 27, 11:30 PM CST | TSTM WND DMG | Oakville, MO | ON CHRISTOPHER DR... LARGE OLDER TREE DOWN PARTIALLY BLOCKING ROAD... AND A CAR PORT BLOWN OVER AND COLLAPSED. THIS DAMAGE VIEWED ENROUTE TO WORK THIS MORNING. |
| Feb 27, 11:30 PM CST | TSTM WND GST 45 | Pevely, MO | |
| Feb 27, 11:33 PM CST | TSTM WND GST 71 | Maryville, IL | |
| Feb 27, 11:34 PM CST | FUNNEL CLOUD | St. Louis, MO | FUNNEL CLOUD REPORTED OVER NORTH ST. LOUIS CITY NEAR LAFAYETTE SQUARE |
| Feb 27, 11:35 PM CST | TSTM WND DMG | 3 Ese Centreville, IL | EST. 70MPH WINDS... HALF INCH TREE LIMBS DOWN |
| Feb 27, 11:35 PM CST | TSTM WND DMG | Granite City, IL | NUMEROUS TREES AND POWER LINES DOWN IN GRANITE CITY. SOME ROOF DAMAGE REPORTED. |
| Feb 27, 11:40 PM CST | TSTM WND DMG | Cahokia, IL | FENCE BROKEN IN HALF. FLAGPOLE BENT IN HALF. FLAGPOLE IS RATED TO 70 MPH. |
| Feb 27, 11:40 PM CST | TSTM WND DMG | Edwardsville, IL | TREES DOWN |
| Feb 27, 11:40 PM CST | TSTM WND DMG | Kuhn, IL | PARTS OF A BARN ROOF AND SIDING...A FLATTENED SHED...AND A VEHICLE 20 PLUS YARDS OFF THE ROADWAY OFF OF COUNTY ROAD 21 NEAR KUHN STATION ROAD. |
| Feb 27, 11:43 PM CST | TSTM WND GST 60 | Collinsville, IL | |
| Feb 27, 11:44 PM CST | TSTM WND GST 70 | East St. Louis, IL | |
| Feb 27, 11:45 PM CST | TSTM WND DMG | Glen Carbon, IL | 6-8 INCH TREE LIMBS BLOWN DOWN |
| Feb 27, 11:45 PM CST | TSTM WND DMG | Troy, IL | STRUCTURAL DAMAGE TO HOMES IN TROY |
| Feb 27, 11:50 PM CST | TSTM WND DMG | 3 E Mascoutah, IL | TRACTOR TRAILER BLOWN OVER ON RTE 177 |
| Feb 27, 11:55 PM CST | TSTM WND GST 55 | Mascoutah, IL | |
| Feb 27, 11:55 PM CST | HAIL 0.25 | Mascoutah, 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 |
|---|---|---|---|
| Feb 27, 9:40 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 5.3 hours before the alert went out and 214 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
- 124 J/kg
- Mixed-layer CIN
- -220 J/kg
- Mixed-layer LCL
- 494 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
381
WFUS53 KLSX 280518
TORLSX
ILC119-133-163-MOC099-183-189-510-280600-
/O.NEW.KLSX.TO.W.0006.110228T0518Z-110228T0600Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1118 PM CST SUN FEB 27 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHERN MADISON COUNTY IN SOUTHWEST ILLINOIS...
MONROE COUNTY IN SOUTHWEST ILLINOIS...
ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS...
NORTHEASTERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
CENTRAL ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
EASTERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI...
ST. LOUIS CITY IN EAST CENTRAL MISSOURI...
* UNTIL MIDNIGHT CST
* AT 1114 PM CST...SPOTTERS HAVE CONFIRMED THAT A TORNADO HAS
TOUCHED DOWN AND CAUSED DAMAGE TO HOMES IN ST. ALBANS IN NORTHEAST
FRANKLIN COUNTY. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THIS SEVERE SQUALL LINE CAPABLE OF PRODUCING BRIEF
RAIN-WRAPPED TORNADOES IN ADDITION TO WIDESPREAD STRAIGHT LINE
WIND DAMAGE. THESE DANGEROUS STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ST. PETERS TO MANCHESTER TO HILLSBORO...AND MOVING
EAST AT 65 MPH.
* LOCATIONS IMPACTED INCLUDE...
MURPHY...ST. CHARLES...DES PERES...MARYLAND HEIGHTS...FENTON...
CREVE COEUR...FRONTENAC...KIRKWOOD...ANTONIA...SUNSET HILLS...
WARSON WOODS...LADUE...GLENDALE...OAKLAND...BRIDGETON...
CRESTWOOD...OLIVETTE...BRENTWOOD...ST. ANN AND WEBSTER GROVES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.
TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.
&&
LAT...LON 3865 8971 3823 8972 3822 9061 3861 9053
3879 9058 3884 8970 3866 8970
TIME...MOT...LOC 0516Z 263DEG 56KT 3877 9056 3861 9049
3827 9057
$$
CVKING3 follow-up statements
045
WWUS53 KLSX 280526
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1126 PM CST SUN FEB 27 2011
ILC119-133-163-MOC099-183-189-510-280600-
/O.CON.KLSX.TO.W.0006.000000T0000Z-110228T0600Z/
MONROE IL-ST. CLAIR IL-MADISON IL-JEFFERSON MO-ST. LOUIS CITY MO-
ST. LOUIS MO-ST. CHARLES MO-
1126 PM CST SUN FEB 27 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL ST. CHARLES...
EASTERN ST. LOUIS...ST. LOUIS CITY...NORTHEASTERN JEFFERSON...
SOUTHERN MADISON...ST. CLAIR AND MONROE COUNTIES UNTIL MIDNIGHT
CST...
AT 1123 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS
IN EXCESS OF 70 MPH AND BRIEF RAIN-WRAPPED TORNADOES. THESE
DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM BRIDGETON
TO BRENTWOOD TO PEVELY...MOVING EAST AT 65 MPH.
NUMEROUS REPORTS OF WIND DAMAGE AND HAIL HAVE BEEN REPORTED TO THE
NATIONAL WEATHER SERVICE...AND A TORNADO HAS OCCURRED IN
NORTHEASTERN FRANKLIN COUNTY. THESE ARE VERY DANGEROUS STORMS...TAKE
SHELTER IMMEDIATELY.
LOCATIONS IMPACTED INCLUDE...
OAKVILLE...NORMANDY...HILLSDALE...COOL VALLEY...LEMAY...
FLORISSANT...NORTHWOODS...FERGUSON...ST. LOUIS...JENNINGS...
DELLWOOD...BLACK JACK...COLUMBIA...DUPO...BELLEFONTAINE
NEIGHBORS...RIVERVIEW...CAHOKIA...VENICE...SPANISH LAKE AND
MADISON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT.
TAKE COVER NOW.
&&
LAT...LON 3823 8972 3822 9055 3862 9046 3879 9058
3884 8970
TIME...MOT...LOC 0525Z 263DEG 56KT 3879 9038 3863 9031
3829 9039
$$
CVKING004
WWUS53 KLSX 280534
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1134 PM CST SUN FEB 27 2011
MOC099-183-280543-
/O.CAN.KLSX.TO.W.0006.000000T0000Z-110228T0600Z/
JEFFERSON MO-ST. CHARLES MO-
1134 PM CST SUN FEB 27 2011
...THE TORNADO WARNING FOR CENTRAL ST. CHARLES AND NORTHEASTERN
JEFFERSON COUNTIES IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
LAT...LON 3823 8972 3822 9036 3832 9037 3858 9026
3881 9028 3882 9013 3880 9012 3882 9011
3884 8970
TIME...MOT...LOC 0533Z 263DEG 56KT 3880 9011 3865 9008
3825 9026
$$
ILC119-133-163-MOC189-510-280600-
/O.CON.KLSX.TO.W.0006.000000T0000Z-110228T0600Z/
MONROE IL-ST. CLAIR IL-MADISON IL-ST. LOUIS CITY MO-ST. LOUIS MO-
1134 PM CST SUN FEB 27 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN ST. LOUIS...ST.
LOUIS CITY...SOUTHERN MADISON...ST. CLAIR AND MONROE COUNTIES UNTIL
MIDNIGHT CST...
AT 1131 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS
IN EXCESS OF 70 MPH AND BRIEF RAIN-WRAPPED TORNADOES. THESE
DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM SPANISH
LAKE TO FAIRMONT CITY TO VALMEYER...MOVING EAST AT 65 MPH.
NUMEROUS REPORTS OF TORNADOES...SEVERE WIND AND HAIL HAVE BEEN
RELAYED TO THE NATIONAL WEATHER SERVICE. TAKE SHELTER NOW!
LOCATIONS IMPACTED INCLUDE...
PONTOON BEACH...CASEYVILLE...WATERLOO...MILLSTADT...COLLINSVILLE...
FAIRVIEW HEIGHTS...GLEN CARBON...MARYVILLE...BELLEVILLE...
EDWARDSVILLE...SWANSEA...TROY...O'FALLON...SHILOH...FREEBURG...
SCOTT AFB...LEBANON...MASCOUTAH...NEW DESIGN AND SMITHTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT.
TAKE COVER NOW.
&&
LAT...LON 3823 8972 3822 9036 3832 9037 3858 9026
3881 9028 3882 9013 3880 9012 3882 9011
3884 8970
TIME...MOT...LOC 0533Z 263DEG 56KT 3880 9011 3865 9008
3825 9026
$$
CVKING230
WWUS53 KLSX 280540
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1140 PM CST SUN FEB 27 2011
MOC189-510-280549-
/O.CAN.KLSX.TO.W.0006.000000T0000Z-110228T0600Z/
ST. LOUIS CITY MO-ST. LOUIS MO-
1140 PM CST SUN FEB 27 2011
...THE TORNADO WARNING FOR EASTERN ST. LOUIS AND EASTERN ST. LOUIS
CITY COUNTIES IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
LAT...LON 3823 8972 3822 9019 3882 9007 3884 8970
TIME...MOT...LOC 0539Z 263DEG 56KT 3881 8999 3866 8996
3826 9014
$$
ILC119-133-163-280600-
/O.CON.KLSX.TO.W.0006.000000T0000Z-110228T0600Z/
MONROE IL-ST. CLAIR IL-MADISON IL-
1140 PM CST SUN FEB 27 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN MADISON...ST.
CLAIR AND EAST CENTRAL MONROE COUNTIES UNTIL MIDNIGHT CST...
AT 1136 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS
IN EXCESS OF 70 MPH AND BRIEF RAIN-WRAPPED TORNADOES. THESE
DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM ROXANA TO
CASEYVILLE TO NEW DESIGN...MOVING EAST AT 65 MPH.
NUMEROUS REPORTS OF TORNADOES AND SEVERE WIND HAVE BEEN REPORTED
WITH THIS STORM SYSTEM. TAKE SHELTER NOW!
LOCATIONS IMPACTED INCLUDE...
TROY...O'FALLON...SHILOH...FREEBURG...SCOTT AFB...LEBANON...
MASCOUTAH...SMITHTON...ST. JACOB...MARINE...NEW ATHENS...MARISSA...
PADERBORN...KUHN...FRUIT...HECKER...SUMMERFIELD...FAYETTEVILLE AND
LENZBURG.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT.
TAKE COVER NOW.
&&
LAT...LON 3823 8972 3822 9019 3882 9007 3884 8970
TIME...MOT...LOC 0539Z 263DEG 56KT 3881 8999 3866 8996
3826 9014
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 6:26 PM CST | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 49 min |
| Feb 27, 7:38 PM CST | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 37 min |
| Feb 27, 8:02 PM CST | Tornado Warning | LSX | Pike | 28 min |
| Feb 27, 8:14 PM CST | Severe Thunderstorm Warning | LSX | Brown | 16 min |
| Feb 27, 8:25 PM CST | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 35 min |
| Feb 27, 9:50 PM CST | Severe Thunderstorm Warning | LSX | Adams, Pike | 40 min |
| Feb 27, 10:30 PM CST | Severe Thunderstorm Warning | LSX | Pike | 18 min |
| Feb 27, 10:47 PM CST | Tornado Warning | LSX | Monroe, Saint Clair | 43 min |
| Feb 27, 11:43 PM CST | Tornado Warning | LSX | Bond, Clinton, Fayette, Madison, Saint Clair, Washington | 47 min |
| Feb 28, 12:07 AM CST | Tornado Warning | LSX | Bond, Clinton, Fayette, Marion, Washington | 38 min |
| Feb 28, 12:23 AM CST | Severe Thunderstorm Warning | LSX | Randolph | 52 min |
| Feb 28, 2:19 AM CST | River Flood Warning | LSX | Jersey | 4 days |
| Feb 28, 6:46 AM CST | River Flood Warning | LSX | Pike | 29 hr |
| Feb 28, 6:46 AM CST | River Flood Warning | LSX | Pike | 38 hr |
| Feb 28, 6:46 AM CST | River Flood Warning | LSX | Calhoun | 52 hr |
| Feb 28, 11:14 AM CST | River Flood Warning | LSX | Morgan, Pike | 17 days |
| Feb 28, 11:43 AM CST | River Flood Warning | LSX | Calhoun | 47 hr |
| Feb 27, 6:57 PM CST | Severe Thunderstorm Warning | LSX | Lewis, Marion | 15 min |
| Feb 27, 8:13 PM CST | Areal Flood Advisory | LSX | Marion | 4 hr |
| Feb 27, 9:54 PM CST | Tornado Warning | LSX | Cole, Gasconade, Osage | 36 min |
| Feb 27, 10:19 PM CST | Tornado Warning | LSX | Franklin, Gasconade, Warren | 41 min |
| Feb 27, 10:25 PM CST | Tornado Warning | LSX | Franklin, Gasconade | 50 min |
| Feb 27, 11:05 PM CST | River Flood Warning | LSX | Marion | 35 hr |
| Feb 27, 11:11 PM CST | River Flood Warning | LSX | Lincoln | 35 hr |
| Feb 27, 11:11 PM CST | River Flood Warning | LSX | Marion | 35 hr |
| Feb 27, 11:11 PM CST | River Flood Warning | LSX | Monroe | 4 days |
| Feb 27, 11:47 PM CST | Severe Thunderstorm Warning | LSX | Crawford | 21 min |
| Feb 28, 12:06 AM CST | Severe Thunderstorm Warning | LSX | Washington | 39 min |
| Feb 28, 12:18 AM CST | Tornado Warning | LSX | Iron, Reynolds | 42 min |
| Feb 28, 12:44 AM CST | Tornado Warning | LSX | Iron, Madison, Sainte Genevieve, Saint Francois | 46 min |
| Feb 28, 10:38 AM CST | River Flood Warning | LSX | Gasconade, Montgomery | 4 days |
Nearby
Tornado Warnings in Missouri, 2011Tornado Warnings in Illinois, 2011Every tornado warning in 2011Tornadoes in 2011
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.