Alert archive / Illinois / Tornado Warnings in 2011
Tornado Warning 26, NWS Lincoln, IL
NWS Lincoln, IL issued this tornado warning at May 7, 2011, 4:44 PM CDT for Vermilion County, Illinois. It was in force for 46 min. 1 report 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
- May 7, 2011, 4:44 PM CDT (21:44 UTC)
- Expired
- May 7, 2011, 5:30 PM CDT
- In force
- 46 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
County Vermilion County, IL
The radar
The Lincoln radar (KILX), 137 km from the middle of the area, began a volume at 21:45 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 |
|---|---|---|---|
| May 7, 5:13 PM CDT | HAIL 0.88 | 3 Nw Danville, 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 |
|---|---|---|---|
| May 7, 2:59 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.7 hours before the alert went out and 74 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
- 1168 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 351 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
008 WFUS53 KILX 072144 TORILX ILC183-072230- /O.NEW.KILX.TO.W.0026.110507T2144Z-110507T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LINCOLN IL 444 PM CDT SAT MAY 7 2011 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * TORNADO WARNING FOR... CENTRAL VERMILION COUNTY IN EAST CENTRAL ILLINOIS... * UNTIL 530 PM CDT. * AT 440 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 6 MILES WEST OF POTOMAC...OR JUST NORTHWEST OF ARMSTRONG...AND MOVING SOUTHEAST AT 25 MPH. * LOCATIONS IMPACTED INCLUDE... POTOMAC...MIDDLE FORK WILDLIFE AREA AND COLLISON. 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 4023 8756 4011 8772 4030 8792 4036 8791 TIME...MOT...LOC 2143Z 309DEG 22KT 4032 8789 $$ CHURCHILL
2 follow-up statements
295 WWUS53 KILX 072203 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 503 PM CDT SAT MAY 7 2011 ILC183-072230- /O.CON.KILX.TO.W.0026.000000T0000Z-110507T2230Z/ VERMILION IL- 503 PM CDT SAT MAY 7 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL VERMILION COUNTY UNTIL 530 PM CDT... AT 459 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 6 MILES SOUTH OF POTOMAC...OR 10 MILES NORTHWEST OF DANVILLE...MOVING SOUTHEAST AT 25 MPH. LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF CENTRAL VERMILION COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4026 8787 4032 8783 4023 8756 4011 8772 TIME...MOT...LOC 2203Z 309DEG 22KT 4021 8775 $$ CHURCHILL
117 WWUS53 KILX 072229 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 529 PM CDT SAT MAY 7 2011 ILC183-072239- /O.EXP.KILX.TO.W.0026.000000T0000Z-110507T2230Z/ VERMILION IL- 529 PM CDT SAT MAY 7 2011 ...THE TORNADO WARNING FOR CENTRAL VERMILION COUNTY WILL EXPIRE AT 530 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM. LAT...LON 4026 8787 4032 8783 4023 8756 4011 8772 TIME...MOT...LOC 2229Z 309DEG 22KT 4011 8759 $$ CHURCHILL
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 4:06 PM CDT | Tornado Warning | ILX | Champaign, Vermilion | 39 min |
| May 7, 4:59 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 46 min |
| May 7, 5:12 PM CDT | Tornado Warning | ILX | Champaign | 31 min |
| May 7, 5:17 PM CDT | Areal Flood Warning | ILX | Lawrence | 4 days |
| May 7, 5:25 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 50 min |
| May 7, 5:39 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 51 min |
| May 7, 6:03 PM CDT | Tornado Warning | ILX | Edgar, Vermilion | 42 min |
| May 7, 6:24 PM CDT | Tornado Warning | ILX | Edgar | 51 min |
| May 7, 6:57 PM CDT | Tornado Warning | ILX | Edgar | 25 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.