Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 117, NWS St. Louis, MO

June 10, 2011Adams County, Illinois; Lewis County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 10, 2011, 5:49 PM CDT for Adams County, Illinois; Lewis County, Missouri. It was in force for 41 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, 5:49 PM CDT (22:49 UTC)
Expired: Jun 10, 2011, 6:30 PM CDT
In force: 41 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

Counties Adams County, IL, Lewis County, MO

The radar

The Quad Cities radar (KDVN), 172 km from the middle of the area, began a volume at 22:52 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, 6:31 PM CDT	HAIL 0.25	Woodville, 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
Jun 10, 4:57 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.8 hours before the alert went out and 175 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 874 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: -79 m²/s²
0-3 km storm-relative helicity: -155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

599 
WFUS53 KLSX 102249
TORLSX
ILC001-MOC111-102330-
/O.NEW.KLSX.TO.W.0117.110610T2249Z-110610T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
549 PM CDT FRI JUN 10 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS...
  NORTHEASTERN LEWIS COUNTY IN NORTHEAST MISSOURI...

* UNTIL 630 PM CDT

* AT 545 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 7 MILES NORTH OF CANTON...AND MOVING EAST AT 30
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  MEYER...LIMA...LORAINE...WOODVILLE...CHATTON AND LA PRAIRIE.

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 4020 9150 4020 9097 4011 9097 4014 9165
      4025 9165 4025 9150
TIME...MOT...LOC 2249Z 269DEG 25KT 4023 9153

$$

TRUETT

1 follow-up statement

247 
WWUS53 KLSX 102308
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
608 PM CDT FRI JUN 10 2011

MOC111-102316-
/O.CAN.KLSX.TO.W.0117.000000T0000Z-110610T2330Z/
LEWIS MO-
608 PM CDT FRI JUN 10 2011

...THE TORNADO WARNING FOR NORTHEASTERN LEWIS COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4020 9097 4011 9097 4013 9151 4019 9151
      4020 9150
TIME...MOT...LOC 2306Z 268DEG 26KT 4020 9135

$$

ILC001-102330-
/O.CON.KLSX.TO.W.0117.000000T0000Z-110610T2330Z/
ADAMS IL-
608 PM CDT FRI JUN 10 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN ADAMS COUNTY
UNTIL 630 PM CDT...

AT 603 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 9 MILES NORTHWEST OF MENDON...OR 9 MILES NORTHEAST 
OF CANTON...MOVING EAST AT 30 MPH.  THERE WAS A REPORT OF A FUNNEL
CLOUD NORTH OF CANTON AS THIS STORM CROSSED THE MISSISSISSIPPI RIVER 
AT 6 PM.

LOCATIONS IMPACTED INCLUDE...
  THE AREA OF GREATEST CONCERN ARE THOSE LOCATIONS NEAR THE 
  ADAMS-HANCOCK COUNTY LINE...INCLUDING THE TOWNS OF 
  LORAINE...WOODVILLE...CHATTON AND LA PRAIRIE.

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 4020 9097 4011 9097 4013 9151 4019 9151
      4020 9150
TIME...MOT...LOC 2306Z 268DEG 26KT 4020 9135

$$

TRUETT

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 12:05 AM CDT	Flash Flood Warning	LSX	Adams	6 hr
Jun 10, 11:38 AM CDT	River Flood Warning	LSX	Adams	13 days
Jun 10, 11:38 AM CDT	River Flood Warning	LSX	Adams	14 days
Jun 10, 11:38 AM CDT	River Flood Warning	LSX	Pike	14 days
Jun 10, 3:38 PM CDT	Areal Flood Advisory	LSX	Marion	4 hr
Jun 10, 5:10 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	65 min
Jun 10, 5:30 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Pike	45 min
Jun 10, 5:42 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	48 min
Jun 10, 6:16 PM CDT	Flash Flood Warning	LSX	Marion	10 hr
Jun 10, 6:27 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	48 min
Jun 10, 6:30 PM CDT	Tornado Warning	LSX	Adams	30 min
Jun 10, 6:43 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Marion	62 min
Jun 9, 9:55 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis	50 min
Jun 9, 10:28 PM CDT	Flash Flood Warning	LSX	Knox	6 hr
Jun 9, 10:53 PM CDT	Flash Flood Warning	LSX	Lewis	6 hr
Jun 9, 11:07 PM CDT	River Flood Warning	LSX	Lewis	11 hr
Jun 9, 11:07 PM CDT	River Flood Warning	LSX	Lewis	11 hr
Jun 9, 11:16 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Shelby	44 min
Jun 10, 3:49 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery, Osage	41 min
Jun 10, 4:38 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway, Montgomery	52 min
Jun 10, 4:40 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway	50 min
Jun 10, 4:42 PM CDT	Severe Thunderstorm Warning	LSX	Gasconade, Montgomery, Warren	48 min
Jun 10, 4:48 PM CDT	Severe Thunderstorm Warning	LSX	Knox	27 min
Jun 10, 5:02 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade	28 min
Jun 10, 5:06 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Montgomery, Pike, Ralls	39 min
Jun 10, 5:29 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Montgomery, Warren	31 min
Jun 10, 5:36 PM CDT	Severe Thunderstorm Warning	LSX	Lewis	39 min
Jun 10, 5:46 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Warren	44 min
Jun 10, 6:53 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Monroe	52 min

Nearby

Tornado Warnings in Illinois, 2011 Tornado Warnings in Missouri, 2011 Every tornado warning in 2011 Tornadoes 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.