Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 31, NWS Lincoln, IL

March 23, 2012Vermilion County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 23, 2012, 4:31 PM CDT for Vermilion County, Illinois. It was in force for 29 min. 5 reports 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: Mar 23, 2012, 4:31 PM CDT (21:31 UTC)
Expired: Mar 23, 2012, 5:00 PM CDT
In force: 29 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Vermilion County, IL

The radar

The Lincoln radar (KILX), 135 km from the middle of the area, began a volume at 21:31 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
Mar 23, 4:32 PM CDT	TSTM WND GST 53	Danville, IL
Mar 23, 4:35 PM CDT	HAIL 0.88	2 W Rossville, IL
Mar 23, 4:40 PM CDT	HAIL 0.88	2 Sw Hoopeston, IL
Mar 23, 4:46 PM CDT	TSTM WND GST 60	Henning, IL
Mar 23, 4:52 PM CDT	HAIL 1	Hoopeston, 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
Mar 23, 11:44 AM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.5 hours before the alert went out and 73 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.

494 
WUUS53 KILX 232131
SVRILX
ILC183-232200-
/O.NEW.KILX.SV.W.0031.120323T2131Z-120323T2200Z/

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

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN VERMILION COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 500 PM CDT.

* AT 426 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
  ROSSVILLE...OR 17 MILES NORTHWEST OF DANVILLE...AND MOVING NORTH AT
  20 MPH. ADDITIONAL STRONG TO SEVERE THUNDERSTORMS WERE DEVELOPING
  AROUND COLLISON...AND THESE WERE ALSO MOVING NORTH AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RANKIN AND HOOPESTON.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKER 203 AND THE 
INDIANA BORDER.

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 4012 8753 4012 8794 4037 8793 4038 8794
      4049 8794 4049 8752
TIME...MOT...LOC 2131Z 191DEG 19KT 4039 8774
WIND...HAIL 60MPH 1.00IN

$$

GEELHART

2 follow-up statements

629 
WWUS53 KILX 232143
SVSILX

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

ILC183-232200-
/O.CON.KILX.SV.W.0031.000000T0000Z-120323T2200Z/
VERMILION IL-
443 PM CDT FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
VERMILION COUNTY UNTIL 500 PM CDT...

AT 440 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
ROSSVILLE...OR 18 MILES NORTH OF DANVILLE...MOVING NORTH AT 25 MPH. 
ADDITIONAL STRONG TO SEVERE THUNDERSTORMS EXTENDED FROM POTOMAC TO
DANVILLE...AND WERE ALSO MOVING NORTH AT 25 MPH.

THESE STORMS PRODUCED NICKEL SIZE HAIL NEAR ROSSVILLE AND 
HOOPESTON...AS WELL AS A 53 MPH WIND GUST IN DANVILLE.

LOCATIONS IMPACTED INCLUDE...
  RANKIN...HOOPESTON...BISMARCK...ALVIN...COLLISON...POTOMAC.

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 4012 8753 4012 8794 4037 8793 4038 8794
      4049 8794 4049 8752
TIME...MOT...LOC 2142Z 183DEG 23KT 4042 8767
WIND...HAIL 60MPH 1.00IN

$$
GEELHART

387 
WWUS53 KILX 232201
SVSILX

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

ILC183-232211-
/O.EXP.KILX.SV.W.0031.000000T0000Z-120323T2200Z/
VERMILION IL-
501 PM CDT FRI MAR 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN VERMILION COUNTY HAS
EXPIRED...

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

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 7 PM.

LAT...LON 4012 8753 4012 8794 4037 8793 4038 8794
      4049 8794 4049 8752
TIME...MOT...LOC 2143Z 183DEG 23KT 4043 8767

$$

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, 2:39 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Jasper, Lawrence, Richland	22 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

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.