Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 104, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 26, 2012, 2:06 AM CDT for Fayette County, Marion County, Illinois. It was in force for 28 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 26, 2012, 2:06 AM CDT (07:06 UTC)
- Expired
- Apr 26, 2012, 2:34 AM CDT
- In force
- 28 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Fayette County, IL, Marion County, IL
The radar
The Evansville,IN radar (KVWX), 108 km from the middle of the area, began a volume at 07:08 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, 7.1 hours before the alert went out and 165 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.
277
WUUS53 KLSX 260706
SVRLSX
ILC051-121-260800-
/O.NEW.KLSX.SV.W.0104.120426T0706Z-120426T0800Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
206 AM CDT THU APR 26 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS...
NORTHEASTERN MARION COUNTY IN SOUTH CENTRAL ILLINOIS...
* UNTIL 300 AM CDT
* AT 203 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SHOBONIER...
AND MOVING SOUTHEAST AT 40 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS.
* LOCATIONS IMPACTED INCLUDE...
KINMUNDY...FARINA...STEPHEN FORBES STATE PARK...OMEGA...HELM...ST.
PAUL...ST. PETER...ALMA...BRUBAKER AND IUKA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.
&&
LAT...LON 3847 8869 3848 8877 3888 8917 3894 8907
3883 8870
TIME...MOT...LOC 0707Z 311DEG 37KT 3885 8903
HAIL...1.00IN
WIND...<50 MPH
$$
CVKING2 follow-up statements
590
WWUS53 KLSX 260720
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
220 AM CDT THU APR 26 2012
ILC051-260730-
/O.CAN.KLSX.SV.W.0104.000000T0000Z-120426T0800Z/
FAYETTE IL-
220 AM CDT THU APR 26 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FAYETTE COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3847 8870 3848 8877 3882 8911 3882 8870
3848 8869
TIME...MOT...LOC 0720Z 311DEG 37KT 3876 8890
$$
ILC121-260800-
/O.CON.KLSX.SV.W.0104.000000T0000Z-120426T0800Z/
MARION IL-
220 AM CDT THU APR 26 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN MARION
COUNTY UNTIL 300 AM CDT...
AT 217 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR KINMUNDY...AND
MOVING SOUTHEAST AT 45 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS.
LOCATIONS IMPACTED INCLUDE...
KINMUNDY...STEPHEN FORBES STATE PARK...OMEGA...HELM...ALMA...BRUBAKER
AND IUKA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.
&&
LAT...LON 3847 8870 3848 8877 3882 8911 3882 8870
3848 8869
TIME...MOT...LOC 0720Z 311DEG 37KT 3876 8890
HAIL...1.00IN
WIND...<50 MPH
$$
CVKING301
WWUS53 KLSX 260734
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
234 AM CDT THU APR 26 2012
ILC121-260744-
/O.CAN.KLSX.SV.W.0104.000000T0000Z-120426T0800Z/
MARION IL-
234 AM CDT THU APR 26 2012
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MARION COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED.
LAT...LON 3847 8870 3848 8877 3882 8911 3882 8870
3848 8869
TIME...MOT...LOC 0734Z 311DEG 37KT 3867 8876
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 8:21 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 54 min |
| Apr 25, 9:13 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 62 min |
| Apr 25, 9:50 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 40 min |
| Apr 25, 10:21 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Pike | 39 min |
| Apr 25, 10:53 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey, Macoupin | 67 min |
| Apr 25, 11:38 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 37 min |
| Apr 25, 11:44 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Madison, Montgomery | 46 min |
| Apr 25, 11:55 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 50 min |
| Apr 26, 12:18 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Madison | 42 min |
| Apr 26, 12:45 AM CDT | Severe Thunderstorm Warning | LSX | Washington | 45 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.