Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 33, NWS Lincoln, IL

March 30, 2012Clay County, Effingham County, Jasper County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 30, 2012, 3:24 PM CDT for Clay County, Effingham County, Jasper County, Illinois. It was in force for 54 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 30, 2012, 3:24 PM CDT (20:24 UTC)
Expired: Mar 30, 2012, 4:18 PM CDT
In force: 54 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Clay County, IL, Effingham County, IL, Jasper County, IL

The radar

The Evansville,IN radar (KVWX), 106 km from the middle of the area, began a volume at 20:26 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 30, 2:51 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.4 hours before the alert went out and 135 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: 164 J/kg
Mixed-layer CIN: -244 J/kg
Mixed-layer LCL: 1045 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 206 m²/s²
0-3 km storm-relative helicity: 230 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.

256 
WUUS53 KILX 302024
SVRILX
ILC025-049-079-302130-
/O.NEW.KILX.SV.W.0033.120330T2024Z-120330T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
324 PM CDT FRI MAR 30 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CLAY COUNTY IN SOUTH CENTRAL ILLINOIS...
  SOUTHERN EFFINGHAM COUNTY IN SOUTH CENTRAL ILLINOIS...
  WESTERN JASPER COUNTY IN SOUTHEAST ILLINOIS...

* UNTIL 430 PM CDT.

* AT 322 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 5 MILES
  NORTHWEST OF FARINA...OR 16 MILES EAST OF VANDALIA...AND MOVING
  EAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EDGEWOOD...IOLA...WATSON...BIBLE GROVE...DIETERICH...WHEELER...
  BOGOTA...MASON...HORD...ELLIOTSTOWN...LATONA AND NEWTON LAKE.

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 3891 8870 3891 8881 3901 8881 3911 8820
      3886 8819 3882 8870
TIME...MOT...LOC 2024Z 263DEG 12KT 3890 8881
WIND...HAIL 60MPH 1.00IN

$$

BAK

3 follow-up statements

064 
WWUS53 KILX 302045
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
345 PM CDT FRI MAR 30 2012

ILC025-049-079-302130-
/O.CON.KILX.SV.W.0033.000000T0000Z-120330T2130Z/
JASPER IL-CLAY IL-EFFINGHAM IL-
345 PM CDT FRI MAR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
EFFINGHAM...NORTHERN CLAY AND WESTERN JASPER COUNTIES UNTIL 430 PM
CDT...

AT 343 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
EDGEWOOD...OR 18 MILES SOUTHWEST OF EFFINGHAM...MOVING EAST AT 15
MPH.

LOCATIONS IMPACTED INCLUDE...
  EDGEWOOD...IOLA...WATSON...BIBLE GROVE...DIETERICH...WHEELER...
  BOGOTA...MASON...HORD...ELLIOTSTOWN...LATONA AND NEWTON LAKE.

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 3891 8870 3891 8881 3901 8881 3911 8820
      3886 8819 3882 8870
TIME...MOT...LOC 2045Z 263DEG 12KT 3891 8872
WIND...HAIL 60MPH 1.00IN

$$

BAK

638 
WWUS53 KILX 302100
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
400 PM CDT FRI MAR 30 2012

ILC025-049-079-302130-
/O.CON.KILX.SV.W.0033.000000T0000Z-120330T2130Z/
JASPER IL-CLAY IL-EFFINGHAM IL-
400 PM CDT FRI MAR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
EFFINGHAM...NORTHERN CLAY AND SOUTHWESTERN JASPER COUNTIES UNTIL 430
PM CDT...

AT 358 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
EDGEWOOD...OR 15 MILES SOUTH OF EFFINGHAM...MOVING EAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  BIBLE GROVE...BOGOTA...MASON...HORD...LATONA AND NEWTON LAKE.

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 3891 8870 3895 8869 3905 8821 3886 8819
      3882 8870
TIME...MOT...LOC 2100Z 268DEG 13KT 3891 8863
WIND...HAIL 60MPH 1.00IN

$$

BAK

345 
WWUS53 KILX 302118
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
418 PM CDT FRI MAR 30 2012

ILC025-049-079-302128-
/O.CAN.KILX.SV.W.0033.000000T0000Z-120330T2130Z/
JASPER IL-CLAY IL-EFFINGHAM IL-
418 PM CDT FRI MAR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN EFFINGHAM...
NORTHERN CLAY AND SOUTHWESTERN 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.
HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3891 8870 3895 8869 3905 8821 3886 8819
      3882 8870
TIME...MOT...LOC 2118Z 268DEG 13KT 3891 8855

$$

BAK

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 2:52 PM CDT	Special Weather Statement	ILX	Clark	53 min
Mar 30, 2:58 PM CDT	Special Weather Statement	ILX	Shelby	62 min
Mar 30, 3:14 PM CDT	Special Weather Statement	ILX	Clark	61 min
Mar 30, 3:17 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Jasper	58 min
Mar 30, 3:42 PM CDT	Severe Thunderstorm Warning	ILX	Cumberland	33 min
Mar 30, 4:15 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Cumberland	36 min
Mar 30, 5:00 PM CDT	Special Weather Statement	ILX	Crawford	60 min
Mar 30, 5:09 PM CDT	Special Weather Statement	ILX	Clay	66 min
Mar 30, 6:48 PM CDT	Special Weather Statement	ILX	Richland	27 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.