Alert archive / Illinois / Tornado Warnings in 2011
Tornado Warning 53, NWS Lincoln, IL
NWS Lincoln, IL issued this tornado warning at Aug 8, 2011, 7:28 PM CDT for McLean County, Illinois. It was in force for 18 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
- Aug 8, 2011, 7:28 PM CDT (00:28 UTC)
- Expired
- Aug 8, 2011, 7:46 PM CDT
- In force
- 18 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
County McLean County, IL
The radar
The Lincoln radar (KILX), 85 km from the middle of the area, began a volume at 00:30 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 |
|---|---|---|---|
| Aug 8, 5:38 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.5 hours before the alert went out and 54 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
- 517 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1569 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.6
The text
As transmitted, in the capitals the NWS used until 2016.
048
WFUS53 KILX 090028
TORILX
ILC113-090100-
/O.NEW.KILX.TO.W.0053.110809T0028Z-110809T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
728 PM CDT MON AUG 8 2011
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN MCLEAN COUNTY IN CENTRAL ILLINOIS...
* UNTIL 800 PM CDT.
* AT 725 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR COLFAX...OR 9 MILES SOUTHWEST OF FAIRBURY...
AND MOVING SOUTHEAST AT 50 MPH.
* LOCATIONS IMPACTED INCLUDE...
ANCHOR AND CROPSEY.
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 4075 8861 4073 8858 4068 8858 4067 8857
4062 8857 4062 8846 4045 8845 4045 8846
4060 8874
TIME...MOT...LOC 0028Z 309DEG 44KT 4061 8856
$$
BARKER1 follow-up statement
147
WWUS53 KILX 090046
SVSILX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
746 PM CDT MON AUG 8 2011
ILC113-090056-
/O.CAN.KILX.TO.W.0053.000000T0000Z-110809T0100Z/
MCLEAN IL-
746 PM CDT MON AUG 8 2011
...THE TORNADO WARNING FOR NORTHEASTERN MCLEAN COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4075 8861 4073 8858 4068 8858 4067 8857
4062 8857 4062 8846 4045 8845 4045 8846
4060 8874
TIME...MOT...LOC 0046Z 309DEG 44KT 4047 8834
$$
BARKERThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:19 PM CDT | Special Weather Statement | ILX | DeWitt, McLean | 56 min |
| Aug 8, 8:15 PM CDT | Special Weather Statement | ILX | Vermilion | 60 min |
| Aug 8, 8:24 PM CDT | Tornado Warning | ILX | Champaign, Vermilion | 51 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.