Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 71, NWS Lincoln, IL

May 29, 2012Christian County, Shelby County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 29, 2012, 2:14 AM CDT for Christian County, Shelby County, Illinois. It was in force for 45 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
May 29, 2012, 2:14 AM CDT (07:14 UTC)
Expired
May 29, 2012, 2:59 AM CDT
In force
45 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Christian County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 94 km from the middle of the area, began a volume at 07:14 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

TimeReportWhereRemark
May 29, 2:29 AM CDTHAIL 1Oconee, IL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 7.2 hours before the alert went out and 87 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 00:00Z on 2012-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 434 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2012-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 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
434 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
2137 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
103 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.

909 
WUUS53 KILX 290714
SVRILX
ILC021-173-290815-
/O.NEW.KILX.SV.W.0071.120529T0714Z-120529T0815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
214 AM CDT TUE MAY 29 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CHRISTIAN COUNTY IN CENTRAL ILLINOIS...
  SHELBY COUNTY IN CENTRAL ILLINOIS...

* UNTIL 315 AM CDT.

* AT 210 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 5 MILES SOUTHEAST OF NOKOMIS...AND MOVING
  NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHELBYVILLE...PANA...TOWER HILL...LAKEWOOD...WESTERVELT...
  FINDLAY...WINDSOR...OCONEE...ROSAMOND...HERRICK...CLARKSBURG...
  EAGLE CREEK STATE PARK...WOLF CREEK STATE PARK AND STRASBURG.

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 3921 8913 3922 8914 3934 8914 3934 8923
      3958 8875 3958 8872 3952 8872 3952 8864
      3948 8858 3945 8858 3945 8856 3938 8851
      3921 8902
TIME...MOT...LOC 0714Z 242DEG 24KT 3925 8920
WIND...HAIL <50MPH 1.00IN

$$

BAK
3 follow-up statements
225 
WWUS53 KILX 290728
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
228 AM CDT TUE MAY 29 2012

ILC021-173-290815-
/O.CON.KILX.SV.W.0071.000000T0000Z-120529T0815Z/
SHELBY IL-CHRISTIAN IL-
228 AM CDT TUE MAY 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
CHRISTIAN AND CENTRAL SHELBY COUNTIES UNTIL 315 AM CDT...

AT 227 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 7 MILES SOUTH OF PANA...OR 10 MILES EAST OF
NOKOMIS...MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  SHELBYVILLE...PANA...TOWER HILL...LAKEWOOD...WESTERVELT...
  FINDLAY...WINDSOR...CLARKSBURG...EAGLE CREEK STATE PARK...WOLF
  CREEK STATE PARK AND STRASBURG.

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 3934 8914 3935 8920 3958 8875 3958 8872
      3952 8872 3952 8864 3948 8860 3948 8858
      3945 8858 3945 8856 3938 8851 3924 8902
      3924 8914
TIME...MOT...LOC 0728Z 242DEG 24KT 3929 8909
WIND...HAIL <50MPH 1.00IN

$$

BAK
279 
WWUS53 KILX 290745
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
245 AM CDT TUE MAY 29 2012

ILC021-290755-
/O.CAN.KILX.SV.W.0071.000000T0000Z-120529T0815Z/
CHRISTIAN IL-
245 AM CDT TUE MAY 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHRISTIAN COUNTY
IS CANCELLED...

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

LAT...LON 3936 8902 3958 8875 3958 8872 3952 8872
      3952 8864 3949 8862 3948 8858 3945 8858
      3945 8856 3938 8851 3928 8896
TIME...MOT...LOC 0745Z 242DEG 24KT 3934 8896

$$

ILC173-290815-
/O.CON.KILX.SV.W.0071.000000T0000Z-120529T0815Z/
SHELBY IL-
245 AM CDT TUE MAY 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL SHELBY
COUNTY UNTIL 315 AM CDT...

AT 244 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR TOWER HILL...OR 10 MILES SOUTHWEST OF
SHELBYVILLE...MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  SHELBYVILLE...TOWER HILL...LAKEWOOD...WESTERVELT...FINDLAY...
  WINDSOR...CLARKSBURG...EAGLE CREEK STATE PARK AND WOLF CREEK STATE
  PARK.

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 3936 8902 3958 8875 3958 8872 3952 8872
      3952 8864 3949 8862 3948 8858 3945 8858
      3945 8856 3938 8851 3928 8896
TIME...MOT...LOC 0745Z 242DEG 24KT 3934 8896
WIND...HAIL <50MPH 1.00IN

$$

BAK
042 
WWUS53 KILX 290759
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
259 AM CDT TUE MAY 29 2012

ILC173-290809-
/O.CAN.KILX.SV.W.0071.000000T0000Z-120529T0815Z/
SHELBY IL-
259 AM CDT TUE MAY 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SHELBY COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3936 8902 3958 8875 3958 8872 3952 8872
      3952 8864 3949 8862 3948 8858 3945 8858
      3945 8856 3938 8851 3928 8896
TIME...MOT...LOC 0759Z 242DEG 24KT 3938 8885

$$

BAK

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 8:17 PM CDTSpecial Weather StatementILXKnox, Stark58 min
May 28, 9:38 PM CDTSpecial Weather StatementILXFulton67 min
May 29, 12:16 AM CDTSpecial Weather StatementILXChristian, Shelby59 min
May 29, 12:20 AM CDTSpecial Weather StatementILXChampaign, Vermilion55 min
May 29, 1:15 AM CDTSpecial Weather StatementILXChampaign60 min
May 29, 1:23 AM CDTSpecial Weather StatementILXShelby67 min
May 29, 1:30 AM CDTSevere Thunderstorm WarningILXChristian, Shelby23 min
May 29, 2:41 AM CDTSpecial Weather StatementILXVermilion64 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.