Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 1, NWS Lincoln, IL

January 17, 2012Lawrence County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jan 17, 2012, 5:34 AM CST for Lawrence County, Illinois. It was in force for 26 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: Jan 17, 2012, 5:34 AM CST (11:34 UTC)
Expired: Jan 17, 2012, 6:00 AM CST
In force: 26 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), 54 km from the middle of the area, began a volume at 11:36 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 00:00Z, 11.6 hours before the alert went out and 180 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: 2 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 748 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 431 m²/s²
0-3 km storm-relative helicity: 500 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.

516 
WUUS53 KILX 171134
SVRILX
ILC101-171200-
/O.NEW.KILX.SV.W.0001.120117T1134Z-120117T1200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
534 AM CST TUE JAN 17 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 600 AM CST.

* AT 530 AM CST...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
  BRIDGEPORT...OR 6 MILES WEST OF LAWRENCEVILLE...AND MOVING EAST AT
  60 MPH.

  AT 515 AM...ONE INCH HAIL WAS REPORTED IN OLNEY...WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  LAWRENCEVILLE...BIRDS...RUSSELLVILLE...BILLETT...PINKSTAFF AND
  LAWRENCEVILLE AIRPORT.

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 3871 8752 3869 8752 3867 8755 3867 8759
      3865 8760 3863 8785 3885 8785 3885 8752
      3882 8752 3879 8749 3874 8749
TIME...MOT...LOC 1133Z 262DEG 50KT 3871 8775
WIND...HAIL 60MPH 1.00IN

$$

AUTEN

2 follow-up statements

772 
WWUS53 KILX 171143
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
543 AM CST TUE JAN 17 2012

ILC101-171200-
/O.CON.KILX.SV.W.0001.000000T0000Z-120117T1200Z/
LAWRENCE IL-
543 AM CST TUE JAN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
LAWRENCE COUNTY UNTIL 600 AM CST...

AT 542 AM CST...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 5 MILES
EAST OF LAWRENCEVILLE...MOVING EAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  RUSSELLVILLE.

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 3871 8752 3869 8752 3867 8755 3867 8759
      3865 8760 3864 8770 3885 8766 3885 8752
      3882 8752 3879 8749 3874 8749
TIME...MOT...LOC 1143Z 262DEG 50KT 3873 8757
WIND...HAIL 60MPH 1.00IN

$$

422 
WWUS53 KILX 171158
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
558 AM CST TUE JAN 17 2012

ILC101-171209-
/O.EXP.KILX.SV.W.0001.000000T0000Z-120117T1200Z/
LAWRENCE IL-
558 AM CST TUE JAN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN LAWRENCE COUNTY WILL
EXPIRE AT 600 AM CST...

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

LAT...LON 3871 8752 3869 8752 3867 8755 3867 8759
      3865 8760 3864 8770 3885 8766 3885 8752
      3882 8752 3879 8749 3874 8749
TIME...MOT...LOC 1159Z 262DEG 50KT 3876 8729

$$

AUTEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 17, 1:58 PM CST	River Flood Warning	ILX	Clay, Richland	4 days

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.