Alert archive / Illinois / Tornado Warnings in 2011
Tornado Warning 6, NWS Lincoln, IL
NWS Lincoln, IL issued this tornado warning at Apr 15, 2011, 5:28 PM CDT for Morgan County, Sangamon County, Illinois. It was in force for 47 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
- Apr 15, 2011, 5:28 PM CDT (22:28 UTC)
- Expired
- Apr 15, 2011, 6:15 PM CDT
- In force
- 47 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
Counties Morgan County, IL, Sangamon County, IL
The radar
The Lincoln radar (KILX), 81 km from the middle of the area, began a volume at 22:30 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 15, 5:40 PM CDT | HAIL 2 | 1 W Waverly, IL | DELAYED REPORT |
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 |
|---|---|---|---|
| Apr 15, 12:47 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.5 hours before the alert went out and 137 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
- 1776 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
617 WFUS53 KILX 152228 TORILX ILC137-167-152315- /O.NEW.KILX.TO.W.0006.110415T2228Z-110415T2315Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LINCOLN IL 528 PM CDT FRI APR 15 2011 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * TORNADO WARNING FOR... EASTERN MORGAN COUNTY IN WEST CENTRAL ILLINOIS... WEST CENTRAL SANGAMON COUNTY IN CENTRAL ILLINOIS... * UNTIL 615 PM CDT. * AT 525 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 5 MILES SOUTHWEST OF WAVERLY...OR 13 MILES WEST OF VIRDEN...AND MOVING NORTH AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... WAVERLY...FRANKLIN...ALEXANDER...LITERBERRY...JACKSONVILLE MUNICIPAL AIRPORT...SINCLAIR AND PRENTICE. THIS INCLUDES INTERSTATE 72 BETWEEN MILE MARKERS 67 AND 82. 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 3987 9029 3988 8992 3952 8996 3952 9012 TIME...MOT...LOC 2228Z 181DEG 25KT 3956 9002 $$ BARNES
2 follow-up statements
107 WWUS53 KILX 152256 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 556 PM CDT FRI APR 15 2011 ILC137-167-152315- /O.CON.KILX.TO.W.0006.000000T0000Z-110415T2315Z/ MORGAN IL-SANGAMON IL- 556 PM CDT FRI APR 15 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR WEST CENTRAL SANGAMON AND EASTERN MORGAN COUNTIES UNTIL 615 PM CDT... AT 553 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR ALEXANDER...OR 13 MILES EAST OF JACKSONVILLE...MOVING NORTH AT 30 MPH. LOCATIONS IMPACTED INCLUDE... LITERBERRY...JACKSONVILLE MUNICIPAL AIRPORT...SINCLAIR AND PRENTICE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 3987 9029 3988 8992 3952 8996 3952 9012 TIME...MOT...LOC 2256Z 181DEG 25KT 3972 9000 $$ BARNES
205 WWUS53 KILX 152313 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 613 PM CDT FRI APR 15 2011 ILC137-167-152323- /O.EXP.KILX.TO.W.0006.000000T0000Z-110415T2315Z/ MORGAN IL-SANGAMON IL- 613 PM CDT FRI APR 15 2011 ...THE TORNADO WARNING FOR WEST CENTRAL SANGAMON AND EASTERN MORGAN COUNTIES WILL EXPIRE AT 615 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 9 PM CDT. LAT...LON 3987 9029 3988 8992 3952 8996 3952 9012 TIME...MOT...LOC 2313Z 181DEG 25KT 3984 9000 $$ BARNES
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 9:36 AM CDT | Wind Advisory | ILX | Champaign, DeWitt, Fulton, Knox, Logan, McLean and 8 more | 4 hr |
| Apr 15, 4:27 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Mason, Menard | 48 min |
| Apr 15, 4:51 PM CDT | Special Weather Statement | ILX | Morgan | 39 min |
| Apr 15, 4:59 PM CDT | Tornado Warning | ILX | Sangamon | 46 min |
| Apr 15, 5:06 PM CDT | Tornado Warning | ILX | Mason, Menard | 39 min |
| Apr 15, 5:17 PM CDT | Tornado Warning | ILX | Sangamon | 43 min |
| Apr 15, 5:40 PM CDT | Tornado Warning | ILX | Fulton, Mason, Tazewell | 50 min |
| Apr 15, 5:42 PM CDT | Tornado Warning | ILX | Logan, Menard, Sangamon | 48 min |
| Apr 15, 5:52 PM CDT | Tornado Warning | ILX | Mason, Menard | 17 min |
| Apr 15, 6:00 PM CDT | Tornado Warning | ILX | Sangamon | 45 min |
| Apr 15, 6:23 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Peoria, Tazewell | 52 min |
| Apr 15, 6:27 PM CDT | Tornado Warning | ILX | Logan, Mason, Menard, Sangamon | 48 min |
| Apr 15, 6:28 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Moultrie, Shelby | 62 min |
| Apr 15, 6:38 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Menard, Sangamon | 37 min |
| Apr 15, 6:50 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland, Effingham, Moultrie, Shelby | 55 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.