Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 295, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Sep 7, 2012, 5:36 PM CDT for Bond County, Madison County, Montgomery 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
- Sep 7, 2012, 5:36 PM CDT (22:36 UTC)
- Expired
- Sep 7, 2012, 6:30 PM CDT
- In force
- 54 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bond County, IL, Madison County, IL, Montgomery County, IL
The radar
The St Louis radar (KLSX), 115 km from the middle of the area, began a volume at 22:39 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 |
|---|---|---|---|
| Sep 7, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.6 hours before the alert went out and 149 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
- 367 J/kg
- Mixed-layer CIN
- -412 J/kg
- Mixed-layer LCL
- 1436 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
061
WUUS53 KLSX 072236
SVRLSX
ILC005-119-135-072330-
/O.NEW.KLSX.SV.W.0295.120907T2236Z-120907T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
536 PM CDT FRI SEP 7 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN BOND COUNTY IN SOUTH CENTRAL ILLINOIS...
NORTHEASTERN MADISON COUNTY IN SOUTHWEST ILLINOIS...
SOUTHERN MONTGOMERY COUNTY IN SOUTH CENTRAL ILLINOIS...
* UNTIL 630 PM CDT
* AT 535 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES SOUTHWEST
OF SORENTO...AND MOVING EAST AT 25 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
* LOCATIONS IMPACTED INCLUDE...
GREENVILLE...SORENTO...RENO...COFFEEN...WOBURN...VAN BURENSBURG...
MULBERRY GROVE...WALSHVILLE...OLD RIPLEY...PANAMA...DONNELLSON...
SMITHBORO AND PLEASANT MOUND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3885 8926 3885 8968 3910 8969 3909 8925
3900 8925
TIME...MOT...LOC 2237Z 267DEG 20KT 3893 8962
HAIL...1.00IN
WIND...60 MPH
$$
TRUETT2 follow-up statements
730
WWUS53 KLSX 072303
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
603 PM CDT FRI SEP 7 2012
ILC119-135-072313-
/O.CAN.KLSX.SV.W.0295.000000T0000Z-120907T2330Z/
MADISON IL-MONTGOMERY IL-
603 PM CDT FRI SEP 7 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MONTGOMERY AND
NORTHEASTERN MADISON COUNTIES IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.
LAT...LON 3898 8925 3885 8926 3886 8960 3903 8948
3903 8926 3900 8925
TIME...MOT...LOC 2303Z 289DEG 27KT 3900 8923 3886 8940
$$
ILC005-072330-
/O.CON.KLSX.SV.W.0295.000000T0000Z-120907T2330Z/
BOND IL-
603 PM CDT FRI SEP 7 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN BOND
COUNTY UNTIL 630 PM CDT...
AT 600 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM VAN BURENSBURG TO GREENVILLE...AND MOVING EAST AT
30 MPH.
HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...
MULBERRY GROVE...SMITHBORO AND PLEASANT MOUND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST
LOUIS.
&&
LAT...LON 3898 8925 3885 8926 3886 8960 3903 8948
3903 8926 3900 8925
TIME...MOT...LOC 2303Z 289DEG 27KT 3900 8923 3886 8940
HAIL...0.88IN
WIND...60 MPH
$$
TES366
WWUS53 KLSX 072325
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
625 PM CDT FRI SEP 7 2012
ILC005-072336-
/O.EXP.KLSX.SV.W.0295.000000T0000Z-120907T2330Z/
BOND IL-
625 PM CDT FRI SEP 7 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN BOND COUNTY WILL
EXPIRE AT 630 PM CDT...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED
OUT OF THE WARNED AREA.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM CDT.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.
LAT...LON 3898 8925 3885 8926 3886 8960 3903 8948
3903 8926 3900 8925
TIME...MOT...LOC 2326Z 289DEG 27KT 3894 8902 3880 8919
$$
TESThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 3:36 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 54 min |
| Sep 7, 4:00 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey | 45 min |
| Sep 7, 4:11 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 24 min |
| Sep 7, 4:32 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 43 min |
| Sep 7, 4:58 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair, Washington | 47 min |
| Sep 7, 6:50 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair, Washington | 40 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.