Alert archive / Illinois / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 97, NWS Lincoln, IL

May 23, 2011Lawrence County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 23, 2011, 3:15 PM CDT for Lawrence County, Illinois. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 23, 2011, 3:15 PM CDT (20:15 UTC)
Expired: May 23, 2011, 3:45 PM CDT
In force: 30 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

County Lawrence County, IL

The radar

The Evansville,IN radar (KVWX), 48 km from the middle of the area, began a volume at 20:16 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 23, 12:54 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.3 hours before the alert went out and 177 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: 504 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 1171 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

401 
WUUS53 KILX 232015
SVRILX
ILC101-232045-
/O.NEW.KILX.SV.W.0097.110523T2015Z-110523T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
315 PM CDT MON MAY 23 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN LAWRENCE COUNTY IN SOUTHEAST ILLINOIS...

* UNTIL 345 PM CDT.

* AT 312 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
  IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM CHAUNCEY TO 8 MILES SOUTH OF BRIDGEPORT...AND MOVING
  EAST AT 90 MPH.

* LOCATIONS IMPACTED INCLUDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN LINCOLN.

&&

LAT...LON 3857 8790 3880 8790 3885 8789 3885 8770
      3857 8771 3856 8772
TIME...MOT...LOC 2015Z 272DEG 77KT 3886 8775 3859 8773
WIND...HAIL 70MPH <.75IN

$$

BARKER

2 follow-up statements

700 
WUUS53 KILX 232016 CCA
SVRILX
ILC101-232045-
/O.COR.KILX.SV.W.0097.110523T2015Z-110523T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE LINCOLN IL
315 PM CDT MON MAY 23 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN LAWRENCE COUNTY IN SOUTHEAST ILLINOIS...

* UNTIL 345 PM CDT.

* AT 312 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
  IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM CHAUNCEY TO 8 MILES SOUTH OF BRIDGEPORT...AND MOVING
  EAST AT 90 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SUMNER...AND HELENA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN LINCOLN.

&&

LAT...LON 3857 8790 3880 8790 3885 8789 3885 8770
      3857 8771 3856 8772
TIME...MOT...LOC 2015Z 272DEG 77KT 3886 8775 3859 8773
WIND...HAIL 70MPH <.75IN

$$

BARKER

289 
WWUS53 KILX 232043
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
343 PM CDT MON MAY 23 2011

ILC101-232053-
/O.EXP.KILX.SV.W.0097.000000T0000Z-110523T2045Z/
LAWRENCE IL-
343 PM CDT MON MAY 23 2011

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN LAWRENCE COUNTY WILL
EXPIRE AT 345 PM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN LINCOLN.

LAT...LON 3857 8790 3880 8790 3885 8789 3885 8770
      3857 8771 3856 8772
TIME...MOT...LOC 2043Z 272DEG 77KT 3883 8698 3856 8697

$$

BARKER

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 22, 7:03 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Peoria	26 min
May 22, 7:28 PM CDT	Tornado Warning	ILX	Knox, Peoria, Stark	21 min
May 22, 7:42 PM CDT	Severe Thunderstorm Warning	ILX	Knox, Peoria, Stark	33 min
May 22, 8:44 PM CDT	Special Weather Statement	ILX	Sangamon	31 min
May 22, 9:40 PM CDT	Special Weather Statement	ILX	Macon	35 min
May 23, 12:53 PM CDT	Special Weather Statement	ILX	Christian, Clay, Effingham, Moultrie, Shelby	82 min
May 23, 1:21 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Effingham, Moultrie, Shelby	54 min
May 23, 1:49 PM CDT	Special Weather Statement	ILX	Clay, Jasper, Richland	41 min
May 23, 2:14 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Crawford, Jasper, Lawrence, Richland	61 min
May 23, 2:17 PM CDT	Severe Thunderstorm Warning	ILX	Cumberland, Effingham, Jasper, Shelby	58 min
May 23, 2:42 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Edgar	63 min
May 23, 2:51 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	54 min
May 23, 3:16 PM CDT	Areal Flood Advisory	ILX	Clay, Richland	3 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2011 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.