Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 82, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 30, 2012, 3:20 PM CDT for Fayette County, Marion County, Illinois. It was in force for 25 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, 3:20 PM CDT (20:20 UTC)
- Expired
- Mar 30, 2012, 3:45 PM CDT
- In force
- 25 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), 122 km from the middle of the area, began a volume at 20:22 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, 8.3 hours before the alert went out and 145 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
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
940
WUUS53 KLSX 302020
SVRLSX
ILC051-121-302045-
/O.NEW.KLSX.SV.W.0082.120330T2020Z-120330T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
320 PM CDT FRI MAR 30 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS...
NORTHERN MARION COUNTY IN SOUTH CENTRAL ILLINOIS...
* UNTIL 345 PM CDT
* AT 315 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR SHOBONIER...OR 9 MILES SOUTH OF VANDALIA...
AND MOVING EAST AT 15 MPH.
* LOCATIONS IMPACTED INCLUDE...
FARINA...ST. PAUL...ST. PETER...LOOGOOTEE AND ST. JAMES.
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 3879 8870 3877 8904 3884 8907 3882 8913
3893 8915 3900 8880 3892 8880 3892 8873
TIME...MOT...LOC 2020Z 259DEG 14KT 3886 8901
WIND...HAIL <50MPH 1.00IN
$$
CARNEY1 follow-up statement
640
WWUS53 KLSX 302035
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
335 PM CDT FRI MAR 30 2012
ILC051-121-302045-
/O.CON.KLSX.SV.W.0082.000000T0000Z-120330T2045Z/
MARION IL-FAYETTE IL-
335 PM CDT FRI MAR 30 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
FAYETTE AND NORTHERN MARION COUNTIES UNTIL 345 PM CDT...
AT 329 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED 6 MILES EAST OF SHOBONIER...OR 11 MILES SOUTHEAST
OF VANDALIA...MOVING EAST AT 20 MPH. A SECOND STORM CAPABLE OF
PRODUCING QUARTER SIZED HAIL WAS LOCATED JUST SOUTH OF LOOGOOTE ALSO
MOVING EAST AT 20 MPH.
LOCATIONS IMPACTED INCLUDE...
FARINA...ST. PETER...LOOGOOTEE AND ST. JAMES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3879 8870 3877 8904 3884 8907 3882 8913
3893 8915 3900 8880 3892 8880 3892 8873
TIME...MOT...LOC 2035Z 268DEG 16KT 3884 8895
WIND...HAIL <50MPH 1.00IN
$$
CARNEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 3:15 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Fayette, Marion | 30 min |
| Mar 30, 3:45 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Marion | 30 min |
| Mar 30, 4:43 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 32 min |
| Mar 30, 5:06 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 24 min |
| Mar 30, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 15 min |
| Mar 30, 5:29 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion | 31 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.