Alert archive / Illinois / Tornado Warnings in 2011
Tornado Warning 60, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at May 13, 2011, 5:35 PM CDT for Randolph 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
- May 13, 2011, 5:35 PM CDT (22:35 UTC)
- Expired
- May 13, 2011, 6:00 PM CDT
- In force
- 25 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
County Randolph County, IL
The radar
The St Louis radar (KLSX), 122 km from the middle of the area, began a volume at 22:36 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 12:00Z, 10.6 hours before the alert went out and 271 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1586 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -48 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
683
WFUS53 KLSX 132235
TORLSX
ILC157-132300-
/O.NEW.KLSX.TO.W.0060.110513T2235Z-110513T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
535 PM CDT FRI MAY 13 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN RANDOLPH COUNTY IN SOUTHWEST ILLINOIS...
* UNTIL 600 PM CDT
* AT 532 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 6 MILES SOUTHEAST OF CHESTER...AND MOVING
NORTHEAST AT 15 MPH.
* LOCATIONS IMPACTED INCLUDE...
BREMEN...STEELEVILLE...PERCY AND WELGE.
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.
&&
LAT...LON 3780 8968 3782 8972 3784 8974 3785 8979
3788 8980 3790 8984 3789 8987 3791 8988
3807 8959 3795 8959
TIME...MOT...LOC 2235Z 239DEG 11KT 3788 8973
$$
CARNEY2 follow-up statements
275
WWUS53 KLSX 132244
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
544 PM CDT FRI MAY 13 2011
ILC157-132300-
/O.CON.KLSX.TO.W.0060.000000T0000Z-110513T2300Z/
RANDOLPH IL-
544 PM CDT FRI MAY 13 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN RANDOLPH
COUNTY UNTIL 600 PM CDT...
AT 541 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 7 MILES SOUTHEAST OF BREMEN...OR 8 MILES EAST OF
CHESTER...MOVING NORTHEAST AT 15 MPH.
LOCATIONS IMPACTED INCLUDE...
BREMEN...STEELEVILLE...PERCY AND WELGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.
&&
LAT...LON 3780 8968 3782 8972 3784 8974 3785 8979
3788 8980 3790 8984 3789 8987 3791 8988
3807 8959 3795 8959
TIME...MOT...LOC 2244Z 236DEG 13KT 3788 8968
$$
CARNEY772
WWUS53 KLSX 132300
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
600 PM CDT FRI MAY 13 2011
ILC157-132310-
/O.EXP.KLSX.TO.W.0060.000000T0000Z-110513T2300Z/
RANDOLPH IL-
600 PM CDT FRI MAY 13 2011
...THE TORNADO WARNING FOR SOUTHEASTERN RANDOLPH COUNTY HAS
EXPIRED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
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 3780 8968 3782 8972 3784 8974 3785 8979
3788 8980 3790 8984 3789 8987 3791 8988
3807 8959 3795 8959
TIME...MOT...LOC 2244Z 236DEG 13KT 3788 8968
$$
CARNEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 4:23 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 23 min |
Nearby
Tornado Warnings in Illinois, 2011Every tornado warning in 2011Tornadoes in 2011
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.