Alert archive / Illinois / Tornado Warnings in 2011
Tornado Warning 121, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 10, 2011, 11:20 PM CDT for 4 counties in Illinois. It was in force for 23 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
- Jun 10, 2011, 11:20 PM CDT (04:20 UTC)
- Expired
- Jun 10, 2011, 11:43 PM CDT
- In force
- 23 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Bond County, IL, Clinton County, IL, Fayette County, IL, Marion County, IL
The radar
The St Louis radar (KLSX), 130 km from the middle of the area, began a volume at 04:20 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 |
|---|---|---|---|
| Jun 10, 11:21 PM CDT | TSTM WND DMG | Beaver Creek, IL | ESTIMATED 60 MPH PLUS STRAIGHT LINE WINDS CAUSED A TREE TO BLOCK ILLINOIS 143 0.5 MILES WEST OF ILLINOIS 127. |
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 |
|---|---|---|---|
| Jun 10, 4:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 4.3 hours before the alert went out and 156 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
- 1004 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 1475 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
020 WFUS53 KLSX 110420 TORLSX ILC005-027-051-121-110500- /O.NEW.KLSX.TO.W.0121.110611T0420Z-110611T0500Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1120 PM CDT FRI JUN 10 2011 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN BOND COUNTY IN SOUTH CENTRAL ILLINOIS... NORTHEASTERN CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS... SOUTHWESTERN FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS... NORTHWESTERN MARION COUNTY IN SOUTH CENTRAL ILLINOIS... * UNTIL MIDNIGHT CDT * AT 1116 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A FUNNEL CLOUD NEAR BEAVER CREEK...OR 7 MILES SOUTH OF GREENVILLE. DOPPLER RADAR SHOWED THIS STORM COULD PRODUCE A TORNADO AT ANY TIME! * LOCATIONS IMPACTED INCLUDE... TAMALCO...BOULDER...FAIRMAN...PATOKA...SHOBONIER...PLEASANT MOUND...KEYESPORT...PITTSBURG AND VERNON. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPEAT...A TORNADO IS ON THE GROUND. 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. 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 3895 8901 3866 8898 3872 8950 3886 8949 TIME...MOT...LOC 0420Z 267DEG 27KT 3879 8938 $$ CVKING
3 follow-up statements
230 WWUS53 KLSX 110426 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1126 PM CDT FRI JUN 10 2011 ILC005-027-051-121-110500- /O.CON.KLSX.TO.W.0121.000000T0000Z-110611T0500Z/ MARION IL-FAYETTE IL-BOND IL-CLINTON IL- 1126 PM CDT FRI JUN 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN CLINTON... SOUTHEASTERN BOND...SOUTHWESTERN FAYETTE AND NORTHWESTERN MARION COUNTIES UNTIL MIDNIGHT CDT... AT 1125 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS AND BRIEF RAIN-WRAPPED TORNADOES. THE TORNADO WOULD BE LOCATED JUST EAST OF BEAVER CREEK...OR 8 MILES SOUTH OF GREENVILLE...MOVING EAST AT 35 MPH. LAW ENFORCEMENT REPORTED A FUNNEL CLOUD FORMING SOUTH OF GREENVILLE NEAR BEAVER CREEK AT 1120. LOCATIONS IMPACTED INCLUDE... TAMALCO...BOULDER...SHOBONIER...PATOKA...FAIRMAN...PLEASANT MOUND...KEYESPORT...PITTSBURG AND VERNON. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW. && LAT...LON 3895 8901 3866 8898 3872 8950 3886 8949 TIME...MOT...LOC 0425Z 275DEG 30KT 3877 8932 $$ CVKING
121 WWUS53 KLSX 110433 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1133 PM CDT FRI JUN 10 2011 ILC005-027-051-121-110500- /O.CON.KLSX.TO.W.0121.000000T0000Z-110611T0500Z/ MARION IL-FAYETTE IL-BOND IL-CLINTON IL- 1133 PM CDT FRI JUN 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN CLINTON... SOUTHEASTERN BOND...EXTREME SOUTHWESTERN FAYETTE AND NORTHWESTERN MARION COUNTIES UNTIL MIDNIGHT CDT... AT 1129 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS AND BRIEF RAIN-WRAPPED TORNADOES. THIS DANGEROUS STORM WAS LOCATED NEAR TAMALCO...OR 11 MILES NORTHEAST OF CARLYLE...MOVING EAST AT 40 MPH. A FUNNEL CLOUD HAS BEEN REPORTED WITH THIS STORM...AND ROTATION REMAINS EVIDENT ON RADAR. TAKE SHELTER NOW! LOCATIONS IMPACTED INCLUDE... PATOKA...FAIRMAN AND VERNON. 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 3881 8932 3882 8900 3866 8898 3870 8933 TIME...MOT...LOC 0433Z 281DEG 34KT 3875 8921 $$ CVKING
873 WWUS53 KLSX 110443 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1143 PM CDT FRI JUN 10 2011 ILC005-027-051-121-110453- /O.CAN.KLSX.TO.W.0121.000000T0000Z-110611T0500Z/ MARION IL-FAYETTE IL-BOND IL-CLINTON IL- 1143 PM CDT FRI JUN 10 2011 ...THE TORNADO WARNING FOR NORTHEASTERN CLINTON...SOUTHEASTERN BOND...EXTREME SOUTHWESTERN FAYETTE AND NORTHWESTERN MARION COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS LOST ITS ROTATION AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO. A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WINDS IN EXCESS OF 60 MPH. LAT...LON 3881 8932 3882 8900 3866 8898 3870 8933 TIME...MOT...LOC 0443Z 281DEG 34KT 3873 8909 $$ CVKING
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 7:14 PM CDT | Severe Thunderstorm Warning | LSX | Brown | 46 min |
| Jun 10, 7:49 PM CDT | Flash Flood Warning | LSX | Bond, Fayette | 4 hr |
| Jun 10, 8:29 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 16 min |
| Jun 10, 8:45 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 35 min |
| Jun 10, 9:11 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 49 min |
| Jun 10, 9:33 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 42 min |
| Jun 10, 9:53 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Montgomery | 53 min |
| Jun 10, 9:58 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey, Madison | 35 min |
| Jun 10, 10:18 PM CDT | Areal Flood Advisory | LSX | Adams, Brown, Pike | 3 hr |
| Jun 10, 11:14 PM CDT | Flash Flood Warning | LSX | Bond, Fayette, Macoupin, Montgomery | 5 hr |
| Jun 10, 11:19 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Marion | 41 min |
| Jun 10, 11:41 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 39 min |
| Jun 11, 1:47 AM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 22 min |
Nearby
Tornado 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.