Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 22, NWS Lincoln, IL

March 23, 20124 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 23, 2012, 2:39 PM CDT for 4 counties in Illinois. It was in force for 22 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: Mar 23, 2012, 2:39 PM CDT (19:39 UTC)
Expired: Mar 23, 2012, 3:01 PM CDT
In force: 22 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Crawford County, IL, Jasper County, IL, Lawrence County, IL, Richland County, IL

The radar

The Evansville,IN radar (KVWX), 85 km from the middle of the area, began a volume at 19:39 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
Mar 23, 11:44 AM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.7 hours before the alert went out and 147 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: 808 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 57 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.

328 
WUUS53 KILX 231939
SVRILX
ILC033-079-101-159-232030-
/O.NEW.KILX.SV.W.0022.120323T1939Z-120323T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
239 PM CDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CRAWFORD COUNTY IN EAST CENTRAL ILLINOIS...
  EASTERN JASPER COUNTY IN SOUTHEAST ILLINOIS...
  NORTHWESTERN LAWRENCE COUNTY IN SOUTHEAST ILLINOIS...
  NORTHEASTERN RICHLAND COUNTY IN SOUTHEAST ILLINOIS...

* UNTIL 330 PM CDT.

* AT 235 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  CHAUNCEY...OR 10 MILES EAST OF OLNEY...AND MOVING NORTH AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROBINSON...CHAUNCEY...HARDINVILLE...FLAT ROCK...OBLONG...NEW
  HEBRON...PALESTINE...EATON...ANNAPOLIS...HUTSONVILLE...STOY...
  CRAWFORD COUNTY AIRPORT...TRIMBLE...BELLAIR AND WEST YORK.

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 3885 8767 3876 8781 3876 8800 3917 8799
      3917 8766 3915 8765 3914 8765 3912 8763
      3911 8763 3910 8761 3909 8762 3908 8759
      3905 8757
TIME...MOT...LOC 1940Z 202DEG 25KT 3881 8789
WIND...HAIL 60MPH 1.00IN

$$

GEELHART

1 follow-up statement

211 
WWUS53 KILX 232001
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
301 PM CDT FRI MAR 23 2012

ILC033-079-101-159-232011-
/O.CAN.KILX.SV.W.0022.000000T0000Z-120323T2030Z/
JASPER IL-LAWRENCE IL-RICHLAND IL-CRAWFORD IL-
301 PM CDT FRI MAR 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR CRAWFORD...NORTHEASTERN
RICHLAND...NORTHWESTERN LAWRENCE AND EASTERN JASPER COUNTIES IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. 

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL AND
EASTERN LAWRENCE COUNTY UNTIL 330 PM.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 7 PM.

LAT...LON 3885 8767 3876 8781 3876 8800 3917 8799
      3917 8766 3915 8765 3914 8765 3912 8763
      3911 8763 3910 8761 3909 8762 3908 8759
      3905 8757
TIME...MOT...LOC 2001Z 202DEG 25KT 3895 8782

$$

GEELHART

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 23, 1:11 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Effingham, Shelby	29 min
Mar 23, 1:33 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Moultrie	42 min
Mar 23, 2:08 PM CDT	Tornado Warning	ILX	Clay	27 min
Mar 23, 2:12 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas	35 min
Mar 23, 2:14 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence, Richland	31 min
Mar 23, 2:28 PM CDT	Tornado Warning	ILX	Clay, Effingham	30 min
Mar 23, 2:33 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	37 min
Mar 23, 2:44 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	46 min
Mar 23, 2:53 PM CDT	Tornado Warning	ILX	Clay	24 min
Mar 23, 3:26 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	34 min
Mar 23, 3:28 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	17 min
Mar 23, 3:35 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	38 min
Mar 23, 3:42 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	25 min
Mar 23, 3:44 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	31 min
Mar 23, 4:08 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	26 min
Mar 23, 4:29 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Marshall, Woodford	34 min
Mar 23, 4:31 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	29 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2012 Every 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.