Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 128, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Sep 21, 2012, 6:42 PM CDT for Clark County, Coles County, Cumberland County, Illinois. It was in force for 48 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
- Sep 21, 2012, 6:42 PM CDT (23:42 UTC)
- Expired
- Sep 21, 2012, 7:30 PM CDT
- In force
- 48 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Clark County, IL, Coles County, IL, Cumberland County, IL
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.7 hours before the alert went out and 110 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2528 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
925
WUUS53 KILX 212342
SVRILX
ILC023-029-035-220030-
/O.NEW.KILX.SV.W.0128.120921T2342Z-120922T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
642 PM CDT FRI SEP 21 2012
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN CLARK COUNTY IN EAST CENTRAL ILLINOIS...
SOUTHEASTERN COLES COUNTY IN EAST CENTRAL ILLINOIS...
NORTHEASTERN CUMBERLAND COUNTY IN EAST CENTRAL ILLINOIS...
* UNTIL 730 PM CDT.
* AT 640 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
JANESVILLE...OR 8 MILES SOUTH OF CHARLESTON...AND MOVING EAST AT 35
MPH.
* LOCATIONS IMPACTED INCLUDE...
MARSHALL...WESTFIELD...MARTINSVILLE...CLARKSVILLE...DENNISON...
UNION CENTER...HUTTON AND LINCOLN TRAIL STATE PARK.
THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 128 AND 153.
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 3933 8755 3934 8758 3931 8761 3932 8823
3946 8822 3949 8796 3948 8786 3949 8769
3948 8768 3947 8753 3935 8754
TIME...MOT...LOC 2342Z 266DEG 32KT 3938 8814
WIND...HAIL 60MPH 1.00IN
$$
SMITH3 follow-up statements
104
WWUS53 KILX 212359
SVSILX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
659 PM CDT FRI SEP 21 2012
ILC029-035-220010-
/O.CAN.KILX.SV.W.0128.000000T0000Z-120922T0030Z/
COLES IL-CUMBERLAND IL-
659 PM CDT FRI SEP 21 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CUMBERLAND AND
SOUTHEASTERN COLES COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3933 8755 3934 8758 3931 8761 3932 8799
3948 8799 3948 8795 3948 8768 3947 8753
3935 8754
TIME...MOT...LOC 0000Z 266DEG 32KT 3939 8793
$$
ILC023-220030-
/O.CON.KILX.SV.W.0128.000000T0000Z-120922T0030Z/
CLARK IL-
659 PM CDT FRI SEP 21 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN CLARK
COUNTY UNTIL 730 PM CDT...
AT 658 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
SOUTHEAST OF WESTFIELD...OR 14 MILES SOUTHEAST OF CHARLESTON...MOVING
EAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
MARSHALL...MARTINSVILLE...CLARKSVILLE...DENNISON AND LINCOLN TRAIL
STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
&&
LAT...LON 3933 8755 3934 8758 3931 8761 3932 8799
3948 8799 3948 8795 3948 8768 3947 8753
3935 8754
TIME...MOT...LOC 0000Z 266DEG 32KT 3939 8793
WIND...HAIL 60MPH 1.00IN
$$
SMITH680
WWUS53 KILX 220017
SVSILX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
717 PM CDT FRI SEP 21 2012
ILC023-220030-
/O.CON.KILX.SV.W.0128.000000T0000Z-120922T0030Z/
CLARK IL-
717 PM CDT FRI SEP 21 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
CLARK COUNTY UNTIL 730 PM CDT...
AT 714 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES
SOUTH OF CLARKSVILLE...OR 5 MILES WEST OF MARSHALL...MOVING EAST AT
35 MPH.
LOCATIONS IMPACTED INCLUDE...
MARSHALL...DENNISON AND LINCOLN TRAIL STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
&&
LAT...LON 3933 8755 3934 8758 3931 8761 3932 8788
3943 8784 3946 8782 3947 8767 3947 8753
3935 8754
TIME...MOT...LOC 0018Z 266DEG 32KT 3937 8774
WIND...HAIL 60MPH 1.00IN
$$
SMITH107
WWUS53 KILX 220032
SVSILX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
732 PM CDT FRI SEP 21 2012
ILC023-220042-
/O.EXP.KILX.SV.W.0128.000000T0000Z-120922T0030Z/
CLARK IL-
732 PM CDT FRI SEP 21 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CLARK COUNTY HAS
EXPIRED...
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 3933 8755 3934 8758 3931 8761 3932 8788
3943 8784 3946 8782 3947 8767 3947 8753
3935 8754
TIME...MOT...LOC 0017Z 266DEG 32KT 3937 8775
$$
SMITHThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 2:23 PM CDT | Special Weather Statement | ILX | Knox | 52 min |
| Sep 21, 2:30 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Mason, Tazewell | 60 min |
| Sep 21, 3:05 PM CDT | Special Weather Statement | ILX | Piatt | 40 min |
| Sep 21, 3:14 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Macon, Piatt | 46 min |
| Sep 21, 3:18 PM CDT | Special Weather Statement | ILX | DeWitt | 42 min |
| Sep 21, 3:59 PM CDT | Special Weather Statement | ILX | Champaign | 46 min |
| Sep 21, 6:37 PM CDT | Special Weather Statement | ILX | Clark | 53 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; the sounding from the Mesonet's radiosonde archive.