Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 61, NWS Lincoln, IL

May 4, 2012Lawrence County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 4, 2012, 1:22 PM CDT for Lawrence County, Illinois. It was in force for 38 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 4, 2012, 1:22 PM CDT (18:22 UTC)
Expired
May 4, 2012, 2:00 PM CDT
In force
38 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Lawrence County, IL

The radar

The Evansville,IN radar (KVWX), 48 km from the middle of the area, began a volume at 18:21 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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.4 hours before the alert went out and 183 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-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2012-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2012-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1160 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
170 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.

048 
WUUS53 KILX 041822
SVRILX
ILC101-041900-
/O.NEW.KILX.SV.W.0061.120504T1822Z-120504T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
122 PM CDT FRI MAY 4 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 200 PM CDT.

* AT 120 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM BIRDS TO 8 MILES SOUTH OF
  SUMNER...AND MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LAWRENCEVILLE...RUSSELLVILLE...ST. FRANCISVILLE...PINKSTAFF...MOUNT
  CARMEL AIRPORT...LAWRENCEVILLE AIRPORT AND BILLETT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3868 8753 3866 8760 3864 8761 3858 8762
      3859 8763 3856 8766 3857 8789 3858 8791
      3885 8773 3884 8752 3882 8752 3879 8749
      3874 8749
TIME...MOT...LOC 1822Z 298DEG 22KT 3883 8765 3860 8781
WIND...HAIL 60MPH 1.00IN

$$

BARNES
1 follow-up statement
211 
WWUS53 KILX 041851
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
151 PM CDT FRI MAY 4 2012

ILC101-041901-
/O.EXP.KILX.SV.W.0061.000000T0000Z-120504T1900Z/
LAWRENCE IL-
151 PM CDT FRI MAY 4 2012

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

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

LAT...LON 3868 8753 3866 8760 3864 8761 3858 8762
      3859 8763 3856 8766 3857 8789 3858 8791
      3885 8773 3884 8752 3882 8752 3879 8749
      3874 8749
TIME...MOT...LOC 1851Z 298DEG 22KT 3875 8745 3852 8761

$$

BARNES

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 7:26 PM CDTSpecial Weather StatementILXMarshall64 min
May 3, 7:36 PM CDTSevere Thunderstorm WarningILXMarshall54 min
May 3, 8:24 PM CDTSevere Thunderstorm WarningILXMarshall51 min
May 3, 8:39 PM CDTFlash Flood WarningILXMarshall6 hr
May 3, 11:16 PM CDTSevere Thunderstorm WarningILXKnox44 min
May 3, 11:29 PM CDTSevere Thunderstorm WarningILXMarshall, Peoria, Stark61 min
May 4, 12:07 AM CDTSevere Thunderstorm WarningILXPeoria, Tazewell, Woodford53 min
May 4, 12:29 AM CDTSevere Thunderstorm WarningILXMarshall, Peoria46 min
May 4, 12:52 AM CDTSevere Thunderstorm WarningILXMcLean, Woodford35 min
May 4, 2:29 AM CDTFlash Flood WarningILXMarshall6 hr
May 4, 8:47 AM CDTSevere Thunderstorm WarningILXClay, Jasper, Richland43 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2012Every severe thunderstorm warning in 2012

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.