Alert archive / Illinois / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 3, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Feb 27, 2011, 12:21 PM CST for McLean County, Illinois. It was in force for 21 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
- Feb 27, 2011, 12:21 PM CST (18:21 UTC)
- Expired
- Feb 27, 2011, 12:42 PM CST
- In force
- 21 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County McLean County, IL
The radar
The Lincoln radar (KILX), 45 km from the middle of the area, began a volume at 18:24 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, 6.4 hours before the alert went out and 42 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
- 790 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
818
WUUS53 KILX 271821
SVRILX
ILC113-271900-
/O.NEW.KILX.SV.W.0003.110227T1821Z-110227T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1221 PM CST SUN FEB 27 2011
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MCLEAN COUNTY IN CENTRAL ILLINOIS...
* UNTIL 100 PM CST.
* AT 1218 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
MCLEAN...OR 14 MILES NORTHEAST OF LINCOLN...AND MOVING NORTHEAST AT
65 MPH.
* LOCATIONS IMPACTED INCLUDE...
BLOOMINGTON...HEYWORTH...NORMAL...DOWNS...TOWANDA...COOKSVILLE...
SAYBROOK...COLFAX...SHIRLEY...BLOOMINGTON AIRPORT...HOLDER...
MORAINE VIEW STATE PARK...ELLSWORTH...ARROWSMITH AND PLEASANT HILL.
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 4071 8866 4042 8850 4028 8902 4029 8903
4029 8917 4029 8927 4037 8927
TIME...MOT...LOC 1821Z 242DEG 57KT 4033 8915
WIND...HAIL 60MPH 1.00IN
$$
HJS1 follow-up statement
370
WWUS53 KILX 271842
SVSILX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1242 PM CST SUN FEB 27 2011
ILC113-271852-
/O.CAN.KILX.SV.W.0003.000000T0000Z-110227T1900Z/
MCLEAN IL-
1242 PM CST SUN FEB 27 2011
...THE SEVERE THUNDERSTORM WARNING FOR MCLEAN COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
LAT...LON 4071 8866 4042 8850 4028 8902 4029 8903
4029 8917 4029 8927 4037 8927
TIME...MOT...LOC 1842Z 242DEG 57KT 4048 8876
$$The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 10:25 AM CST | River Flood Warning | ILX | Crawford, Jasper | 35 hr |
| Feb 27, 10:30 AM CST | River Flood Warning | ILX | Piatt | 24 hr |
| Feb 27, 10:30 AM CST | River Flood Warning | ILX | Fulton, Knox | 24 hr |
| Feb 27, 11:40 AM CST | Severe Thunderstorm Warning | ILX | Cass, Morgan | 25 min |
| Feb 27, 11:46 AM CST | Severe Thunderstorm Warning | ILX | Logan, Mason, Menard | 44 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2011Every severe thunderstorm warning 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.