Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 45, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Apr 25, 2012, 9:55 PM CDT for Morgan County, Scott County, Illinois. It was in force for 65 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
- Apr 25, 2012, 9:55 PM CDT (02:55 UTC)
- Expired
- Apr 25, 2012, 11:00 PM CDT
- In force
- 65 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Morgan County, IL, Scott County, IL
The radar
The Lincoln radar (KILX), 105 km from the middle of the area, began a volume at 02:54 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 |
|---|---|---|---|
| Apr 25, 7:47 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 2.9 hours before the alert went out and 162 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
- 1745 J/kg
- Mixed-layer CIN
- -108 J/kg
- Mixed-layer LCL
- 1353 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 261 m²/s²
- 0-3 km storm-relative helicity
- 449 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
755
WUUS53 KILX 260255
SVRILX
ILC137-171-260400-
/O.NEW.KILX.SV.W.0045.120426T0255Z-120426T0400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
955 PM CDT WED APR 25 2012
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN MORGAN COUNTY IN WEST CENTRAL ILLINOIS...
SCOTT COUNTY IN WEST CENTRAL ILLINOIS...
* UNTIL 1100 PM CDT.
* AT 950 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED 6 MILES NORTH OF GRIGGSVILLE...OR 14 MILES NORTH OF
PITTSFIELD...AND MOVING SOUTHEAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
WINCHESTER...MEREDOSIA...NAPLES...BLUFFS...EXETER...CHAPIN...
ALSEY...MANCHESTER...WOODSON...MURRAYVILLE...OXVILLE...MERRITT...
RIGGSTON...GLASGOW...LYNNVILLE...LAKE JACKSONVILLE AND NORTONVILLE.
THIS INCLUDES INTERSTATE 72 BETWEEN MILE MARKERS 43 AND 66.
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 3982 9058 3988 9059 3988 9055 3953 8992
3952 8994 3951 9001 3952 9057 3964 9062
3970 9065
TIME...MOT...LOC 0255Z 307DEG 29KT 3978 9068
WIND...HAIL 60MPH 1.50IN
$$
AUTEN2 follow-up statements
983 WWUS53 KILX 260331 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 1031 PM CDT WED APR 25 2012 ILC137-171-260400- /O.CON.KILX.SV.W.0045.000000T0000Z-120426T0400Z/ MORGAN IL-SCOTT IL- 1031 PM CDT WED APR 25 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN SCOTT AND SOUTH CENTRAL MORGAN COUNTIES UNTIL 1100 PM CDT... AT 1027 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR WINCHESTER...MOVING SOUTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... ALSEY...MANCHESTER...MURRAYVILLE AND GLASGOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 3970 9064 3953 9007 3952 9057 TIME...MOT...LOC 0330Z 307DEG 29KT 3958 9050 WIND...HAIL <50MPH 1.00IN $$ AUTEN
183 WWUS53 KILX 260350 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 1050 PM CDT WED APR 25 2012 ILC137-171-260401- /O.EXP.KILX.SV.W.0045.000000T0000Z-120426T0400Z/ MORGAN IL-SCOTT IL- 1050 PM CDT WED APR 25 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN SCOTT AND SOUTH CENTRAL MORGAN COUNTIES WILL EXPIRE AT 1100 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF THE WARNED AREA. LAT...LON 3970 9064 3953 9007 3952 9057 TIME...MOT...LOC 0351Z 307DEG 29KT 3948 9033 $$ AUTEN
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 11:55 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Effingham, Jasper, Richland | 65 min |
| Apr 26, 2:38 AM CDT | Special Weather Statement | ILX | Clay | 37 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; radar from the NEXRAD Level II archive.