Alert archive / Missouri / Tornado Warnings in 2011
Tornado Warning 2, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Feb 27, 2011, 9:54 PM CST for Cole County, Gasconade County, Osage County, Missouri. It was in force for 36 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
- Feb 27, 2011, 9:54 PM CST (03:54 UTC)
- Expired
- Feb 27, 2011, 10:30 PM CST
- In force
- 36 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Cole County, MO, Gasconade County, MO, Osage County, MO
The radar
The St Louis radar (KLSX), 117 km from the middle of the area, began a volume at 03:54 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, 10:15 PM CST | TSTM WND DMG | Linn, MO | SEVERAL REPORTS OF HIGH WINDS WITH NO ESTIMATED SPEEDS...CARPORT BLEW INTO ROAD...PEA SIZED HAIL |
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
Springfield, MO (KSGF), launched 00:00Z, 3.9 hours before the alert went out and 230 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
- 626 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1011 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 369 m²/s²
- 0-3 km storm-relative helicity
- 472 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.4
The text
As transmitted, in the capitals the NWS used until 2016.
090
WFUS53 KLSX 280354
TORLSX
MOC051-073-151-280430-
/O.NEW.KLSX.TO.W.0002.110228T0354Z-110228T0430Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
954 PM CST SUN FEB 27 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTH CENTRAL COLE COUNTY IN CENTRAL MISSOURI...
GASCONADE COUNTY IN EAST CENTRAL MISSOURI...
SOUTHERN OSAGE COUNTY IN CENTRAL MISSOURI...
* UNTIL 1030 PM CST
* AT 949 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 6 MILES SOUTHWEST OF ST. THOMAS...OR 16 MILES
EAST OF ELDON...AND MOVING EAST AT 70 MPH.
* LOCATIONS IMPACTED INCLUDE...
LINN...WESTPHALIA...FREEBURG...RICH FOUNTAIN...MOUNT STERLING...
DRAKE...ROSEBUD...OSAGE BEND...KOELTZTOWN...ARGYLE...BAY AND SWISS.
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.
&&
LAT...LON 3860 9144 3838 9137 3828 9197 3828 9219
3829 9220 3833 9220 3832 9226 3833 9231
3840 9233
TIME...MOT...LOC 0354Z 256DEG 63KT 3834 9219
$$
CARNEY2 follow-up statements
843
WWUS53 KLSX 280406
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1006 PM CST SUN FEB 27 2011
MOC051-073-151-280430-
/O.CON.KLSX.TO.W.0002.000000T0000Z-110228T0430Z/
OSAGE MO-GASCONADE MO-COLE MO-
1006 PM CST SUN FEB 27 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN COLE...
GASCONADE AND SOUTHERN OSAGE COUNTIES UNTIL 1030 PM CST...
AT 1002 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR WESTPHALIA...OR 12 MILES SOUTHWEST OF LINN...
MOVING EAST AT 70 MPH.
LOCATIONS IMPACTED INCLUDE...
LINN...RICH FOUNTAIN...MOUNT STERLING...DRAKE...ROSEBUD...BAY AND
SWISS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.
&&
LAT...LON 3842 9223 3860 9144 3838 9137 3828 9197
3829 9220 3833 9220 3833 9221
TIME...MOT...LOC 0406Z 256DEG 63KT 3839 9193
$$
BRITT173 WWUS53 KLSX 280416 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1016 PM CST SUN FEB 27 2011 MOC051-280426- /O.CAN.KLSX.TO.W.0002.000000T0000Z-110228T0430Z/ COLE MO- 1016 PM CST SUN FEB 27 2011 ...THE TORNADO WARNING FOR SOUTH CENTRAL COLE COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 3831 9181 3849 9194 3860 9144 3838 9137 TIME...MOT...LOC 0416Z 260DEG 57KT 3842 9176 $$ MOC073-151-280430- /O.CON.KLSX.TO.W.0002.000000T0000Z-110228T0430Z/ OSAGE MO-GASCONADE MO- 1016 PM CST SUN FEB 27 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR GASCONADE AND CENTRAL OSAGE COUNTIES UNTIL 1030 PM CST... AT 1014 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR RICH FOUNTAIN...OR 6 MILES SOUTHEAST OF LINN...MOVING EAST AT 65 MPH. LOCATIONS IMPACTED INCLUDE... MOUNT STERLING...DRAKE...ROSEBUD...BAY AND SWISS. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. && LAT...LON 3831 9181 3849 9194 3860 9144 3838 9137 TIME...MOT...LOC 0416Z 260DEG 57KT 3842 9176 $$ CVKING
The 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 | Lewis, Marion | 49 min |
| Feb 27, 6:57 PM CST | Severe Thunderstorm Warning | LSX | Lewis, Marion | 15 min |
| Feb 27, 7:38 PM CST | Severe Thunderstorm Warning | LSX | Marion, Ralls | 37 min |
| Feb 27, 8:02 PM CST | Tornado Warning | LSX | Pike | 28 min |
| Feb 27, 8:13 PM CST | Areal Flood Advisory | LSX | Marion | 4 hr |
| Feb 27, 8:25 PM CST | Severe Thunderstorm Warning | LSX | Pike | 35 min |
| Feb 27, 9:50 PM CST | Severe Thunderstorm Warning | LSX | Audrain, Pike, Ralls | 40 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, 10:47 PM CST | Tornado Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis, Warren, City of Saint Louis | 43 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, 11:18 PM CST | Tornado Warning | LSX | Jefferson, Saint Charles, Saint Louis, City of Saint Louis | 42 min |
| 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, 12:23 AM CST | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 52 min |
| Feb 28, 12:44 AM CST | Tornado Warning | LSX | Iron, Madison, Sainte Genevieve, Saint Francois | 46 min |
| Feb 28, 2:19 AM CST | River Flood Warning | LSX | Saint Charles | 4 days |
| Feb 28, 6:46 AM CST | River Flood Warning | LSX | Marion | 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 | Pike | 52 hr |
| Feb 28, 10:38 AM CST | River Flood Warning | LSX | Gasconade, Montgomery | 4 days |
| Feb 28, 11:43 AM CST | River Flood Warning | LSX | Lincoln | 47 hr |
Nearby
Tornado Warnings in Missouri, 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.