Alert archive / Illinois / Tornado Warnings in 2016

Tornado Warning 10, NWS Chicago, IL

June 22, 2016DeKalb County, LaSalle County, Illinois

NWS Chicago, IL issued this tornado warning at Jun 22, 2016, 8:04 PM CDT for DeKalb County, LaSalle County, Illinois. It was in force for 56 min. 2 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: Jun 22, 2016, 8:04 PM CDT (01:04 UTC)
Expired: Jun 22, 2016, 9:00 PM CDT
In force: 56 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

Counties DeKalb County, IL, LaSalle County, IL

The radar

The Chicago radar (KLOT), 58 km from the middle of the area, began a volume at 01:03 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
Jun 22, 8:11 PM CDT	TORNADO	1 S Leland, IL	TORNADO SOUTH OF LELAND.
Jun 22, 8:29 PM CDT	TORNADO	3 Nw Sheridan, 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
Jun 22, 6:11 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 1.1 hours before the alert went out and 143 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: 2855 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 998 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 316 m²/s²
0-3 km storm-relative helicity: 422 m²/s²
Significant tornado parameter: 6.5
Supercell composite: 30.6

Open this sounding in Storm Lab

The text

As transmitted.

101 
WFUS53 KLOT 230105
TORLOT

WFUS53 KLOT DDHHMM
TORLOT
ILC037-099-230200-
/O.NEW.KLOT.TO.W.0010.160623T0104Z-160623T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
804 PM CDT WED JUN 22 2016

THE NATIONAL WEATHER SERVICE IN CHICAGO  HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN LA SALLE COUNTY IN NORTH CENTRAL ILLINOIS... SOUTHEASTERN 
  DE KALB COUNTY IN NORTH CENTRAL ILLINOIS...

* UNTIL 900 PM CDT

* AT 804 PM CDT...A CONFIRMED TORNADO WAS LOCATED OVER EARLVILLE...OR
  10 MILES SOUTH OF SHABBONA...MOVING EAST AT 20 MPH.

  HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL. 

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THE TORNADO WILL BE NEAR...
  LELAND AROUND 815 PM CDT. 
  SOMONAUK AROUND 830 PM CDT. 
  SANDWICH AND SHERIDAN AROUND 835 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
MILLINGTON.

THIS INCLUDES...  SANDWICH FAIRGROUNDS.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4165 8890 4166 8860 4143 8860 4157 8891
TIME...MOT...LOC 0104Z 289DEG 19KT 4161 8888 

TORNADO...OBSERVED
HAIL...1.00IN

$$

IZZI

4 follow-up statements

562 
WWUS53 KLOT 230116
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
816 PM CDT WED JUN 22 2016

ILC037-230126-
/O.CAN.KLOT.TO.W.0010.000000T0000Z-160623T0200Z/
DE KALB IL-
816 PM CDT WED JUN 22 2016

...THE TORNADO WARNING FOR SOUTHEASTERN DE KALB COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FOR NORTHEASTERN
ILLINOIS.

LAT...LON 4162 8889 4163 8860 4143 8860 4157 8891
TIME...MOT...LOC 0116Z 286DEG 20KT 4159 8880 

$$

ILC099-230200-
/O.CON.KLOT.TO.W.0010.000000T0000Z-160623T0200Z/
LA SALLE IL-
816 PM CDT WED JUN 22 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHEASTERN LA SALLE COUNTY...
    
AT 816 PM CDT...A CONFIRMED TORNADO WAS LOCATED JUST SOUTHOF
LELAND...OR 7 MILES NORTHWEST OF SERENA...MOVING EAST AT 25 MPH.

HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL. 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS TORNADO WILL BE NEAR...
  SOMONAUK AROUND 830 PM CDT. 
  SHERIDAN AROUND 835 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
MILLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4162 8889 4163 8860 4143 8860 4157 8891
TIME...MOT...LOC 0116Z 286DEG 20KT 4159 8880 

TORNADO...OBSERVED
HAIL...1.00IN

$$

BMD

119 
WWUS53 KLOT 230127
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
827 PM CDT WED JUN 22 2016

ILC099-230200-
/O.CON.KLOT.TO.W.0010.000000T0000Z-160623T0200Z/
LA SALLE IL-
827 PM CDT WED JUN 22 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHEASTERN LA SALLE COUNTY...
    
AT 826 PM CDT...A CONFIRMED TORNADO WAS LOCATED NORTHWEST
OF SHERIDAN...OR NEAR SERENA...MOVING EAST AT 20 MPH.

HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL. 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS TORNADO WILL BE NEAR...
  SOMONAUK AROUND 830 PM CDT. 
  SHERIDAN AROUND 835 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
MILLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4162 8883 4163 8860 4143 8860 4154 8885
TIME...MOT...LOC 0126Z 284DEG 17KT 4156 8873 

TORNADO...OBSERVED
HAIL...1.00IN

$$

BMD

008 
WWUS53 KLOT 230138
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
838 PM CDT WED JUN 22 2016

ILC099-230200-
/O.CON.KLOT.TO.W.0010.000000T0000Z-160623T0200Z/
LA SALLE IL-
838 PM CDT WED JUN 22 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHEASTERN LA SALLE COUNTY...
    
AT 838 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER SHERIDAN...OR NEAR SERENA...MOVING SOUTHEAST AT 20
MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
NORTHEASTERN LA SALLE COUNTY...INCLUDING THE FOLLOWING LOCATIONS:
MILLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW.

&&

LAT...LON 4160 8879 4163 8860 4143 8860 4152 8881
TIME...MOT...LOC 0138Z 296DEG 15KT 4152 8867 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BMD

293 
WWUS53 KLOT 230153
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
853 PM CDT WED JUN 22 2016

ILC099-230203-
/O.EXP.KLOT.TO.W.0010.000000T0000Z-160623T0200Z/
LA SALLE IL-
853 PM CDT WED JUN 22 2016

...THE TORNADO WARNING FOR NORTHEASTERN LA SALLE COUNTY WILL EXPIRE
AT 900 PM CDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY WINDS
AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FOR NORTHEASTERN
ILLINOIS.

LAT...LON 4160 8879 4163 8860 4143 8860 4152 8881
TIME...MOT...LOC 0152Z 289DEG 19KT 4152 8867 

$$

BMD

The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 22, 7:15 PM CDT	Tornado Warning	LOT	Lee	30 min
Jun 22, 7:29 PM CDT	Tornado Warning Tornado observed	LOT	DeKalb, LaSalle, Lee	46 min
Jun 22, 7:51 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle	39 min
Jun 22, 7:59 PM CDT	Tornado Warning Tornado observed	LOT	LaSalle	46 min
Jun 22, 8:03 PM CDT	Special Marine Warning	LOT		87 min
Jun 22, 8:11 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage	49 min
Jun 22, 8:34 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle	41 min
Jun 22, 8:35 PM CDT	Areal Flood Advisory	LOT	DeKalb, Grundy, Kendall, LaSalle, Will	3 hr
Jun 22, 8:45 PM CDT	Areal Flood Advisory	LOT	Cook, DuPage	3 hr
Jun 22, 8:47 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage	45 min
Jun 22, 8:50 PM CDT	Severe Thunderstorm Warning	LOT	Will	25 min
Jun 22, 8:52 PM CDT	Flash Flood Warning	LOT	Grundy, Kendall, LaSalle	5 hr
Jun 22, 9:01 PM CDT	Tornado Warning	LOT	Grundy, LaSalle	29 min
Jun 22, 9:12 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle, Livingston	48 min
Jun 22, 9:25 PM CDT	Special Marine Warning	LOT		35 min
Jun 22, 9:42 PM CDT	Tornado Warning	LOT	LaSalle, Livingston	33 min
Jun 22, 9:53 PM CDT	Areal Flood Advisory	LOT	Ford, Grundy, Iroquois, Kankakee, LaSalle, Livingston	4 hr
Jun 22, 10:03 PM CDT	Tornado Warning	LOT	Livingston	31 min
Jun 22, 10:04 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois	56 min
Jun 22, 10:22 PM CDT	Tornado Warning Tornado observed	LOT	Livingston	38 min
Jun 22, 10:41 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	64 min
Jun 22, 10:47 PM CDT	Tornado Warning Tornado observed	LOT	Ford, Iroquois, Livingston	43 min
Jun 22, 10:51 PM CDT	Tornado Warning	LOT	Livingston	39 min
Jun 22, 11:21 PM CDT	Tornado Warning Tornado observed	LOT	Iroquois	39 min
Jun 22, 11:29 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kankakee, LaSalle, Livingston	31 min
Jun 22, 11:53 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee, Livingston	52 min
Jun 23, 12:32 AM CDT	Severe Thunderstorm Warning	LOT	Iroquois	43 min
Jun 23, 1:15 AM CDT	Special Weather Statement	LOT	Iroquois	45 min
Jun 23, 1:44 AM CDT	Areal Flood Advisory	LOT	Ford, Iroquois	7 hr
Jun 23, 3:59 AM CDT	Marine Dense Fog Advisory	LOT		10 hr
Jun 23, 4:47 AM CDT	Beach Hazards Statement	LOT	Lake	22 hr
Jun 23, 5:05 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more	4 hr

Nearby

Tornado Warnings in Illinois, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.