Alert archive / Illinois / Tornado Warnings in 2012
Tornado Warning 19, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Aug 31, 2012, 3:27 PM CDT for Greene County, Pike County, Illinois. It was in force for 48 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 31, 2012, 3:27 PM CDT (20:27 UTC)
- Expired
- Aug 31, 2012, 4:15 PM CDT
- In force
- 48 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Greene County, IL, Pike County, IL
The radar
The St Louis radar (KLSX), 81 km from the middle of the area, began a volume at 20:27 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 31, 3:30 PM CDT | TORNADO | Carrollton, IL | CITY ROAD COMMISSIONER OBSERVED DEBRIS IN THE AIR NEAR THE CITY CEMETARY... INCLUDING TIN. POSSIBLE TORNADO. |
| Aug 31, 4:21 PM CDT | FUNNEL CLOUD | 3 Wnw Roodhouse, IL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 31, 1:56 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.5 hours before the alert went out and 177 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
- 947 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1049 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- -45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
151
WFUS53 KLSX 312027
TORLSX
ILC061-149-312115-
/O.NEW.KLSX.TO.W.0019.120831T2027Z-120831T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
327 PM CDT FRI AUG 31 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
WESTERN GREENE COUNTY IN SOUTHWEST ILLINOIS...
SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS...
* UNTIL 415 PM CDT
* AT 325 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR CARROLLTON...AND MOVING NORTH AT 25 MPH.
HAZARD...DEVELOPING TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...SIGNIFICANT HOUSE AND BUILDING DAMAGE POSSIBLE. MOBILE
HOMES COMPLETELY DESTROYED IF HIT. SOME TREES UPROOTED OR
SNAPPED. VEHICLES WILL LIKELY BE THROWN BY TORNADIC WINDS.
* LOCATIONS IMPACTED INCLUDE...
WHITE HALL...ROODHOUSE...BERDAN...BELLTOWN...HAYPRESS...
WALKERSVILLE...HILLVIEW...PATTERSON...BARROW AND PEARL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.
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 3952 9032 3923 9029 3918 9050 3952 9067
TIME...MOT...LOC 2027Z 161DEG 23KT 3932 9045
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
PRZYBYLINSKI2 follow-up statements
353
WWUS53 KLSX 312045
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
345 PM CDT FRI AUG 31 2012
ILC061-149-312115-
/O.CON.KLSX.TO.W.0019.000000T0000Z-120831T2115Z/
PIKE IL-GREENE IL-
345 PM CDT FRI AUG 31 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR WESTERN GREENE COUNTY IN
SOUTHWEST ILLINOIS...AND SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL
ILLINOIS UNTIL 415 PM CDT...
AT 327 PM CDT...A CONFIRMED TORNADO WAS LOCATED 1 MILE WEST OF
CARROLLTON...AND MOVING NORTH AT 30 MPH.
HAZARD...DAMAGING TORNADO.
SOURCE...CITY ROAD COMMIONSSER AT CARROLTON REPORTED A
CONFIRMED TORNADO.
IMPACT...SIGNIFICANT HOUSE AND BUILDING DAMAGE POSSIBLE. MOBILE HOMES
COMPLETELY DESTROYED IF HIT. SOME TREES UPROOTED OR SNAPPED.
VEHICLES WILL LIKELY BE THROWN BY TORNADIC WINDS.
LOCATIONS IMPACTED INCLUDE...
WHITE HALL...ROODHOUSE...HILLVIEW...PATTERSON...BARROW AND PEARL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST
LOUIS.
&&
LAT...LON 3952 9032 3923 9029 3918 9050 3952 9067
TIME...MOT...LOC 2038Z 161DEG 23KT 3939 9048
TORNADO...OBSERVED
HAIL...<.75IN
$$
PRZYBYLINSKI638 WWUS53 KLSX 312110 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 410 PM CDT FRI AUG 31 2012 ILC061-149-312120- /O.EXP.KLSX.TO.W.0019.000000T0000Z-120831T2115Z/ PIKE IL-GREENE IL- 410 PM CDT FRI AUG 31 2012 ...THE TORNADO WARNING FOR WESTERN GREENE COUNTY IN SOUTHWEST ILLINOIS...AND SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS WILL EXPIRE AT 415 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT. LAT...LON 3952 9032 3923 9029 3918 9050 3952 9067 TIME...MOT...LOC 2110Z 161DEG 23KT 3958 9057 $$ PRZYBYLINSKI
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 2:44 PM CDT | Tornado Warning | LSX | Greene, Jersey, Pike | 31 min |
| Aug 31, 2:48 PM CDT | Tornado Warning | LSX | Madison | 17 min |
Nearby
Tornado Warnings in Illinois, 2012Every tornado warning in 2012Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.