Alert archive / Missouri / Tornado Warnings in 2011
Tornado Warning 35, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 19, 2011, 7:54 PM CDT for Sainte Genevieve County, Missouri; Randolph County, Illinois. It was in force for 36 min. 6 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
- Apr 19, 2011, 7:54 PM CDT (00:54 UTC)
- Expired
- Apr 19, 2011, 8:30 PM CDT
- In force
- 36 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
The radar
The St Louis radar (KLSX), 108 km from the middle of the area, began a volume at 00:57 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 |
|---|---|---|---|
| Apr 19, 7:56 PM CDT | FUNNEL CLOUD | 2 Ssw Ste. Genevieve, MO | POSSIBLE TORNADO. SPOTTER WAS IN ST. MARY LOOKING NORTHWEST AND SAW A FUNNEL CLOUD WITH POWER FLASHES ALONG THE GROUND. |
| Apr 19, 7:59 PM CDT | TSTM WND DMG | Ste. Genevieve, MO | POWER POLES AND TREES DOWN IN STE. GENEVIEVE |
| Apr 19, 8:04 PM CDT | TSTM WND DMG | Kaskaskia, IL | LARGE AREA OF TREE DAMAGE OBSERVED AT FORT KASKASKIA STATE HISTORIC SITE. LARGE TREES UPROOTED...INCLUDING 30 INCH DIAMETER PECAN TREE AND BRANCHES DOWN UP TO 12 INCHES IN DIAMETER. |
| Apr 19, 8:10 PM CDT | HAIL 0.25 | Chester, IL | |
| Apr 19, 8:15 PM CDT | TSTM WND DMG | Ste. Genevieve, MO | REPORT OF ROOF DAMAGE TO A HARDWARE STORE |
| Apr 19, 8:40 PM CDT | TSTM WND DMG | Sparta, IL | 2 INCH DIAMETER TREE BRANCHES BLOWN DOWN |
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 |
|---|---|---|---|
| Apr 19, 1:00 PM CDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.9 hours before the alert went out and 266 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
- 2409 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 523 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 370 m²/s²
- 0-3 km storm-relative helicity
- 547 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 24.4
The text
As transmitted, in the capitals the NWS used until 2016.
559
WFUS53 KLSX 200054
TORLSX
ILC157-MOC186-200130-
/O.NEW.KLSX.TO.W.0035.110420T0054Z-110420T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
754 PM CDT TUE APR 19 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
RANDOLPH COUNTY IN SOUTHWEST ILLINOIS...
EASTERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
* UNTIL 830 PM CDT
* AT 749 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 5 MILES NORTHEAST OF WEINGARTEN...OR 6 MILES
SOUTHWEST OF STE. GENEVIEVE...AND MOVING NORTHEAST AT 55 MPH.
* LOCATIONS IMPACTED INCLUDE...
STE. GENEVIEVE...CHESTER...SPARTA...ST. MARY...EVANSVILLE...
BREMEN...BALDWIN...STEELEVILLE...PERCY...TILDEN...COULTERVILLE...
KELLOGG...MODOC...KASKASKIA...ROOTS...ELLIS GROVE...NEW
PALESTINE...WALSH...PRESTON AND WELGE.
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 3788 8982 3790 8986 3787 8990 3788 8993
3783 8999 3779 9010 3800 9023 3823 8984
3822 8962 3821 8960 3796 8960
TIME...MOT...LOC 0053Z 243DEG 46KT 3795 9008
$$
TRUETT3 follow-up statements
676
WWUS53 KLSX 200103
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
803 PM CDT TUE APR 19 2011
ILC157-MOC186-200130-
/O.CON.KLSX.TO.W.0035.000000T0000Z-110420T0130Z/
RANDOLPH IL-STE. GENEVIEVE MO-
803 PM CDT TUE APR 19 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN STE. GENEVIEVE AND
RANDOLPH COUNTIES UNTIL 830 PM CDT...
AT 757 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED JUST EAST OF STE. GENEVIEVE...MOVING NORTHEAST AT
55 MPH. TRAINED STORM SPOTTERS HAVE INDICATED FLASHES FROM POWER
LINES NEAR STE. GENEVIEVE...WHICH ARE OFTEN AN INDICATION OF A
TORNADO. WIND DAMAGE HAS ALSO BEEN REPORTED IN STE. GENEVIEVE.
LOCATIONS IMPACTED INCLUDE...
CHESTER...SPARTA...EVANSVILLE...BREMEN...BALDWIN...STEELEVILLE...
PERCY...TILDEN...COULTERVILLE...ELLIS GROVE...NEW PALESTINE...
WALSH...PRESTON...WELGE...BLAIR...HOUSTON AND EDEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3788 8982 3790 8986 3787 8990 3788 8993
3783 8999 3779 9010 3800 9023 3823 8984
3822 8962 3821 8960 3796 8960
TIME...MOT...LOC 0102Z 243DEG 46KT 3800 8994
$$
TRUETT768
WWUS53 KLSX 200109
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
809 PM CDT TUE APR 19 2011
MOC186-200119-
/O.CAN.KLSX.TO.W.0035.000000T0000Z-110420T0130Z/
STE. GENEVIEVE MO-
809 PM CDT TUE APR 19 2011
...THE TORNADO WARNING FOR EASTERN STE. GENEVIEVE COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3788 8982 3790 8986 3787 8990 3812 9002
3822 8985 3822 8962 3821 8960 3796 8960
TIME...MOT...LOC 0109Z 232DEG 54KT 3808 8983
$$
ILC157-200130-
/O.CON.KLSX.TO.W.0035.000000T0000Z-110420T0130Z/
RANDOLPH IL-
809 PM CDT TUE APR 19 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR RANDOLPH COUNTY UNTIL 830
PM CDT...
AT 806 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR EVANSVILLE...OR 10 MILES NORTH OF CHESTER...
MOVING NORTHEAST AT 60 MPH.
LOCATIONS IMPACTED INCLUDE...
SPARTA...BALDWIN...STEELEVILLE...PERCY...TILDEN...COULTERVILLE...
BLAIR...HOUSTON AND EDEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT... EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR
VEHICLE AND LIE DOWN IN A LOW LYING AREA.
&&
LAT...LON 3788 8982 3790 8986 3787 8990 3812 9002
3822 8985 3822 8962 3821 8960 3796 8960
TIME...MOT...LOC 0109Z 232DEG 54KT 3808 8983
$$
TRUETT395
WWUS53 KLSX 200132
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
832 PM CDT TUE APR 19 2011
ILC157-200142-
/O.EXP.KLSX.TO.W.0035.000000T0000Z-110420T0130Z/
RANDOLPH IL-
832 PM CDT TUE APR 19 2011
...THE TORNADO WARNING FOR RANDOLPH COUNTY HAS EXPIRED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO
WATCH REMAINS IN EFFECT UNTIL 9 PM.
LAT...LON 3788 8982 3790 8986 3787 8990 3812 9002
3822 8985 3822 8962 3821 8960 3796 8960
TIME...MOT...LOC 0109Z 232DEG 54KT 3808 8983
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 7:03 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Washington | 42 min |
| Apr 19, 7:05 PM CDT | Areal Flood Advisory | LSX | Saint Louis, City of Saint Louis | 5 hr |
| Apr 19, 7:17 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison | 28 min |
| Apr 19, 7:18 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Louis | 42 min |
| Apr 19, 7:25 PM CDT | Tornado Warning | LSX | Iron, Madison, Saint Francois | 40 min |
| Apr 19, 7:29 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison, Sainte Genevieve, Saint Francois | 46 min |
| Apr 19, 7:30 PM CDT | Tornado Warning | LSX | Saint Louis, City of Saint Louis | 45 min |
| Apr 19, 7:34 PM CDT | Tornado Warning | LSX | Madison, Sainte Genevieve, Saint Francois | 41 min |
| Apr 19, 7:37 PM CDT | Tornado Warning | LSX | Jefferson, Saint Louis | 36 min |
| Apr 19, 7:39 PM CDT | Tornado Warning | LSX | Franklin, Jefferson, Washington | 33 min |
| Apr 19, 7:48 PM CDT | Tornado Warning | LSX | Madison | 27 min |
| Apr 19, 9:37 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 21 min |
| Apr 19, 7:35 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Montgomery | 40 min |
| Apr 19, 7:51 PM CDT | Tornado Warning | LSX | Saint Clair | 39 min |
| Apr 19, 7:56 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Montgomery | 34 min |
| Apr 19, 8:00 PM CDT | Tornado Warning | LSX | Bond, Clinton, Madison | 45 min |
| Apr 19, 8:02 PM CDT | Areal Flood Advisory | LSX | Bond, Macoupin, Montgomery | 4 hr |
| Apr 19, 8:18 PM CDT | Tornado Warning | LSX | Randolph, Saint Clair, Washington | 42 min |
| Apr 19, 8:25 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison, Saint Clair | 22 min |
| Apr 19, 8:33 PM CDT | Tornado Warning | LSX | Fayette | 42 min |
| Apr 19, 8:33 PM CDT | Tornado Warning | LSX | Bond, Clinton, Fayette, Marion, Washington | 57 min |
| Apr 19, 9:41 PM CDT | River Flood Warning | LSX | Fayette | 13 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.