Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 118, NWS St. Louis, MO

June 10, 2011Adams County, Illinois

NWS St. Louis, MO issued this tornado warning at Jun 10, 2011, 6:30 PM CDT for Adams County, Illinois. It was in force for 30 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, 6:30 PM CDT (23:30 UTC)
Expired: Jun 10, 2011, 7:00 PM CDT
In force: 30 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

County Adams County, IL

The radar

The Lincoln radar (KILX), 144 km from the middle of the area, began a volume at 23:32 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, 11.5 hours before the alert went out and 166 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.

890 
WFUS53 KLSX 102330
TORLSX
ILC001-110000-
/O.NEW.KLSX.TO.W.0118.110610T2330Z-110611T0000Z/

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

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 700 PM CDT

* AT 626 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR WEST POINT...OR 19 MILES EAST OF CANTON...
  AND MOVING EAST AT 30 MPH.  STORM SPOTTERS ARE INDICATING ROTATION
  IN THIS STORM NEAR THE ADAMS-HANCOCK COUNTY LINE NORTH OF LORAINNE.

* LOCATIONS IMPACTED INCLUDE...
  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 9092 4019 9091 4012 9091 4014 9126
      4020 9126 4020 9103
TIME...MOT...LOC 2329Z 268DEG 26KT 4019 9114

$$

TRUETT

1 follow-up statement

371 
WWUS53 KLSX 102356
SVSLSX

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

ILC001-110005-
/O.EXP.KLSX.TO.W.0118.000000T0000Z-110611T0000Z/
ADAMS IL-
656 PM CDT FRI JUN 10 2011

...THE TORNADO WARNING FOR NORTHEASTERN ADAMS COUNTY WILL EXPIRE AT
700 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF NORTHEAST 
ADAMS COUNTY.  HOWEVER...A TORNADO WARNING REMAINS IN EFFECT FOR 
SCHUYLER COUNTY UNTIL 745 PM.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT.

LAT...LON 4020 9092 4019 9091 4012 9091 4014 9126
      4020 9126 4020 9103
TIME...MOT...LOC 2355Z 268DEG 26KT 4020 9089

$$

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, 5:49 PM CDT	Tornado Warning	LSX	Adams	41 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, 6:43 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Marion	62 min

Nearby

Tornado Warnings in Illinois, 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.