Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 7, NWS Lincoln, IL

April 15, 2011Fulton County, Mason County, Tazewell County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 15, 2011, 5:40 PM CDT for Fulton County, Mason County, Tazewell County, Illinois. It was in force for 50 min. 3 reports 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, 5:40 PM CDT (22:40 UTC)
Expired: Apr 15, 2011, 6:30 PM CDT
In force: 50 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon

Counties Fulton County, IL, Mason County, IL, Tazewell County, IL

The radar

The Lincoln radar (KILX), 58 km from the middle of the area, began a volume at 22:43 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
Apr 15, 6:05 PM CDT	HAIL 1	3 S St. David, IL
Apr 15, 6:06 PM CDT	TSTM WND GST 60	Dunfermline, IL
Apr 15, 6:23 PM CDT	FUNNEL CLOUD	7 W South Pekin, 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
Apr 15, 12:47 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.7 hours before the alert went out and 115 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

016 
WFUS53 KILX 152240
TORILX
ILC057-125-179-152330-
/O.NEW.KILX.TO.W.0007.110415T2240Z-110415T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
540 PM CDT FRI APR 15 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL FULTON COUNTY IN WEST CENTRAL ILLINOIS...
  NORTH CENTRAL MASON COUNTY IN CENTRAL ILLINOIS...
  WEST CENTRAL TAZEWELL COUNTY IN CENTRAL ILLINOIS...

* UNTIL 630 PM CDT.

* AT 539 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR HAVANA...AND MOVING NORTH AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MANITO...ST. DAVID...CHATAUQUA PARK...TOPEKA...FOREST CITY...
  LIVERPOOL...GOOFY RIDGE...UNION...LITTLE AMERICA...BRYANT...
  DUNFERMLINE AND BANNER.

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 4053 8987 4052 8987 4053 8984 4053 8967
      4022 8991 4022 9003 4054 9014
TIME...MOT...LOC 2240Z 184DEG 31KT 4030 8996

$$

BARNES

1 follow-up statement

359 
WWUS53 KILX 152324
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
624 PM CDT FRI APR 15 2011

ILC057-125-179-152335-
/O.EXP.KILX.TO.W.0007.000000T0000Z-110415T2330Z/
MASON IL-TAZEWELL IL-FULTON IL-
624 PM CDT FRI APR 15 2011

...THE TORNADO WARNING FOR EAST CENTRAL FULTON...WEST CENTRAL
TAZEWELL AND NORTH CENTRAL MASON COUNTIES WILL EXPIRE AT 630 PM
CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 4053 8987 4052 8987 4053 8984 4053 8967
      4022 8991 4022 9003 4054 9014
TIME...MOT...LOC 2325Z 184DEG 31KT 4069 8992

$$

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, 5:28 PM CDT	Tornado Warning	ILX	Morgan, Sangamon	47 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, 2011 Every tornado warning in 2011 Tornadoes 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.