Alert archive / Illinois / Tornado Warnings in 2011
Tornado Warning 4, NWS Lincoln, IL
NWS Lincoln, IL issued this tornado warning at Apr 15, 2011, 5:06 PM CDT for Mason County, Menard County, Illinois. It was in force for 39 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, 5:06 PM CDT (22:06 UTC)
- Expired
- Apr 15, 2011, 5:45 PM CDT
- In force
- 39 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
Counties Mason County, IL, Menard County, IL
The radar
The Lincoln radar (KILX), 48 km from the middle of the area, began a volume at 22:06 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, 5:34 PM CDT | TORNADO | 1 Sw Poplar City, IL | *** 1 INJ *** ONE HOUSE DAMAGED WITH ONE INJURY AND NUMEROUS TREES BLOWN DOWN |
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, 10.1 hours before the alert went out and 111 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.
597 WFUS53 KILX 152206 TORILX ILC125-129-152245- /O.NEW.KILX.TO.W.0004.110415T2206Z-110415T2245Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LINCOLN IL 506 PM CDT FRI APR 15 2011 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * TORNADO WARNING FOR... CENTRAL MASON COUNTY IN CENTRAL ILLINOIS... NORTHWESTERN MENARD COUNTY IN CENTRAL ILLINOIS... * UNTIL 545 PM CDT. * AT 502 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 6 MILES SOUTHEAST OF KILBOURNE...OR 16 MILES SOUTHWEST OF MASON CITY. DOPPLER RADAR SHOWED THIS TORNADO MOVING NORTH AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... EASTON AND POPLAR CITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPEAT...A TORNADO IS ON THE GROUND. 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 4031 8979 4003 8990 4004 8998 4032 9004 TIME...MOT...LOC 2206Z 187DEG 28KT 4011 8994 $$ BARNES
1 follow-up statement
601 WWUS53 KILX 152222 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 522 PM CDT FRI APR 15 2011 ILC129-152231- /O.CAN.KILX.TO.W.0004.000000T0000Z-110415T2245Z/ MENARD IL- 522 PM CDT FRI APR 15 2011 ...THE TORNADO WARNING FOR NORTHWESTERN MENARD COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4014 8990 4014 9000 4032 9004 4031 8979 TIME...MOT...LOC 2221Z 187DEG 28KT 4022 8996 $$ ILC125-152245- /O.CON.KILX.TO.W.0004.000000T0000Z-110415T2245Z/ MASON IL- 522 PM CDT FRI APR 15 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL MASON COUNTY UNTIL 545 PM CDT... AT 516 PM CDT...DOPPLER RADAR INDICATED A TORNADO. THIS TORNADO WAS LOCATED NEAR KILBOURNE...OR 9 MILES SOUTHEAST OF HAVANA...MOVING NORTH AT 30 MPH. LOCATIONS IMPACTED INCLUDE... EASTON AND POPLAR CITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPEAT...A TORNADO IS ON THE GROUND. 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 4014 8990 4014 9000 4032 9004 4031 8979 TIME...MOT...LOC 2221Z 187DEG 28KT 4022 8996 $$
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, 5:17 PM CDT | Tornado Warning | ILX | Sangamon | 43 min |
| Apr 15, 5:28 PM CDT | Tornado Warning | ILX | Morgan, Sangamon | 47 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.