Chicago, IL

Weather Forecast Office

June 22, 2016 Tornado Event

Overview

The evening of Wednesday, June 22 brought a favorable setup for tornadoes across northern Illinois. NWS damage survey teams determined there were a total of 18 tornadoes in northern Illinois. This includes 15 across the NWS Chicago County Warning Area (CWA) and 3 across the NWS Quad Cities CWA. In addition, the Civil Air Patrol conducted several flights over the damage paths, which provided extremely valuable data in confirming and finalizing tornado paths.

Tornadoes determined in the NWS Chicago County Warning Area are summarized in this Public Information Statement and grouped below by the three parent storms that produced them.

Supercell #1 ("Northern Storm")

West Brooklyn (Lee): EF-1
West Brooklyn Satellite (Lee): EF-0
Earlville (LaSalle): EF-1
Northeast of Earlville (LaSalle): EF-0
Northeast of Earlville (LaSalle): EF-1
Sheridan Area (LaSalle): EF-1

Supercell #2 ("Central Storm")

Troy Grove (LaSalle): EF-1
Northwest of Ottawa (LaSalle): EF-1
Dayton / North of Ottawa (LaSalle): EF-1
Marseilles / Seneca (LaSalle & Grundy): EF-2
Mazon (Grundy): EF-0
Clifton (Iroquois): EF-1

Supercell #3 ("Southern Storm")

Pontiac (Livingston): EF-2
Chatsworth (Livingston): EF-0
Cissna Park (Iroquois): EF-1

The National Weather Service wishes to thank Emergency Management for incredible preparedness partnering and help in completing the damage data collection. We also wish to thank storm spotters and amateur radio for vital communications throughout the event. Finally we thank the media for relay of life saving warning and preparedness information to help keep everyone safe.

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Other Links

Tornadoes:

A summary text listing of details can be found in this Public Information Statement.

Tornado - West Brooklyn, Illinois
Lee County

Date	June 22, 2016
Time (Local)	7:19-7:35 pm
EF Rating	EF-1
Est. Peak Winds	110 mph
Path Length	4.1 miles
Max Width	300 yards
Injuries/Deaths
Summary:

Track Map of West Brooklyn, IL Tornado

Downloadable KMZ File


Home 1 mile NNE of West Brooklyn	Trees down 1 mile NNE of West Brooklyn	Shed damaged 2 miles NE of West Brooklyn

Tornado - West Brooklyn, Illinois - Satellite Tornado
Lee County

Date	June 22, 2016
Time (Local)	7:36-7:37 pm
EF Rating	EF-0
Est. Peak Winds	70 mph
Path Length	0.13 mile
Max Width	50 yards
Injuries/Deaths
Summary: Determined from ground survey and video documentation.

Track Map of West Brooklyn Satellite Tornado

Track Map of West Brooklyn and West Brooklyn North tornado

Downloadable KMZ File

Photo of tornado by Ethan Schisler

Tornado - Earlville, Illinois
LaSalle County

Date	June 22, 2016
Time (Local)	7:58-8:07 pm
EF Rating	EF-1
Est. Peak Winds	110 mph
Path Length	5.0 miles
Max Width	400 yards
Injuries/Deaths
Summary:

Track Map of Earlville, IL Tornado

Downloadable KMZ File


Cornfield 2 miles east of Earlville	Siding off of house 1 mile ENE of Earlville	Tree damage 3 miles ESE of Earlville	Tree damage 1 mile ENE of Earlville

Tornado - Northeast of Earlville, Illinois #1
LaSalle County

Date	June 22, 2016
Time (Local)	7:59-8:00 pm
EF Rating	EF-0
Est. Peak Winds	80 mph
Path Length	0.3 miles
Max Width	75 yards
Injuries/Deaths
Summary: Determined from video documentation.

Track Map of Northeast of Earlville, IL Tornado #1

Tornado - Northeast of Earlville, Illinois #2
LaSalle County

Date	June 22, 2016
Time (Local)	8:02-8:07 pm
EF Rating	EF-1
Est. Peak Winds	95 mph
Path Length	1.4 miles
Max Width	250 yards
Injuries/Deaths
Summary:

Track Map of Northeast of Earlville, IL Tornado #2

Track Map of Northeast Earlville, IL tornado #2

Tree damage 3 miles ESE of Earlville

Tornado - Sheridan, Illinois
LaSalle County

Date	June 22, 2016
Time (Local)	8:22-8:27 pm
EF Rating	EF-1
Est. Peak Winds	110 mph
Path Length	1.7 miles
Max Width	250 yards
Injuries/Deaths
Summary:

Track Map of Sheridan, IL Tornado

Downloadable KMZ File


Barn destroyed	Tree damage

Tornado - Troy Grove, Illinois
LaSalle County

Date	June 22, 2016
Time (Local)	8:11-8:12 pm
EF Rating	EF-1
Est. Peak Winds	100-110 mph
Path Length	0.5 mile
Max Width	50 yards
Injuries/Deaths
Summary:

Track Map of Troy Grove, IL Tornado

Downloadable KMZ File


Tree down just south of Troy Grove	Trees downed in cemetery just south of Troy Grove

Tornado - Northwest of Ottawa, Illinois
LaSalle County

Date	June 22, 2016
Time (Local)	8:33 pm
EF Rating	EF-1
Est. Peak Winds	95 mph
Path Length	0.1 mile
Max Width	50 yards
Injuries/Deaths
Summary:

Track Map of Northwest of Ottawa, IL Tornado

Track Map of 5 miles NW of Ottawa, IL tornado

Downloadable KMZ File

Corn dryer down 5 miles northwest of Ottawa

Tornado - Dayton / North of Ottawa, Illinois
LaSalle County

Date	June 22, 2016
Time (Local)	8:48-8:53 pm
EF Rating	EF-1
Est. Peak Winds	90 mph
Path Length	4.5 miles
Max Width	100 yards
Injuries/Deaths
Summary:

Track Map of Dayton / North of Ottawa, IL Tornado

Downloadable KMZ File


Barn wall collapsed - 4 miles N of Ottawa	Corn flattened	Trees snapped

Tornado - Marseilles-Seneca, Illinois
LaSalle County and Grundy County

Date	June 22, 2016
Time (Local)	8:53-9:15 pm
EF Rating	EF-2
Est. Peak Winds	110-120 mph
Path Length	8.1 miles
Max Width	300 yards
Injuries/Deaths
Summary: The strongest (EF-2) damage was to trees and one outbuilding at a farmstead, and also to high tension power trusses, four of which were toppled/crumpled.

Track Map of Marseilles-Seneca, IL Tornado

Downloadable KMZ File


Barn destroyed 4 miles ENE of Marseilles	Barn 4 miles north of Seneca	Damage of siding	Siding in trees

Tornado - Mazon, Illinois
Grundy County

Date	June 22, 2016
Time (Local)	9:29-9:36 pm
EF Rating	EF-0
Est. Peak Winds	85 mph
Path Length	1 mile
Max Width	100 yards
Injuries/Deaths
Summary:

Track Map of Mazon, IL Tornado

Downloadable KMZ File


Crops flattened 3 miles NE of Mazon	Tree downed 3 miles NE of Mazon

Tornado - Clifton, Illinois
Iroquois County

Date	June 22, 2016
Time (Local)	10:12-10:15 pm
EF Rating	EF-1
Est. Peak Winds	100 mph
Path Length	1.7 miles
Max Width	50 yards
Injuries/Deaths
Summary:

Track Map of Clifton, IL Tornado


Outbuilding destroyed. Debris had been gathered.	More farmstead damage

Tornado - Pontiac, Illinois
Livingston County

Date	June 22, 2016
Time (Local)	10:06-10:24 pm
EF Rating	EF-2
Est. Peak Winds	115-125 mph
Path Length	11.1 miles
Max Width	440 yards
Injuries/Deaths	4 injuries
Summary:

Track Map of Pontiac, IL Tornado

Downloadable KMZ File


Collapsed wall 1 mile WSW of Pontiac	Damage at gas station

Tornado - Chatsworth, Illinois
Livingston County

Date	June 22, 2016
Time (Local)	10:49-10:50 pm
EF Rating	EF-0
Est. Peak Winds	80 mph
Path Length	0.1 miles
Max Width	10 yards
Injuries/Deaths
Summary: There was damage to an outbuilding and accounts from nearby storm spotters helped to confirm the presence of a tornado. It is difficult to say how long this was on the ground and it is likely at least a broad weak mesocyclone was low if not in contact with the ground for some time in eastern Livingston into Ford County.

Track Map of Chatsworth, IL Tornado

Outbuilding damage

Tornado - Cissna Park, Illinois
Iroquois County

Date	June 22, 2016
Time (Local)	11:37-11:41 pm
EF Rating	EF-1
Est. Peak Winds	110 mph
Path Length	3.1 miles
Max Width	440 yards
Injuries/Deaths
Summary:

Track Map of Cissna Park, IL Tornado

Downloadable KMZ File

Roof torn off the high school baseball dugout

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0 Weak 65-85 mph	EF1 Moderate 86-110 mph	EF2 Significant 111-135 mph	EF3 Severe 136-165 mph	EF4 Extreme 166-200 mph	EF5 Catastrophic 200+ mph

Storm Reports

Preliminary Storm Report

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
954 AM CDT THU JUN 23 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0712 PM     TORNADO          5 ESE AMBOY             41.70N 89.24W
06/22/2016                   LEE                IL   TRAINED SPOTTER

            BRIEF TOUCHDOWN.

0738 PM     TORNADO          COMPTON                 41.69N 89.09W
06/22/2016                   LEE                IL   TRAINED SPOTTER

            TORNADO NEAR SHAW ROAD WITH TREE DAMAGE.

0739 PM     HAIL             HUNTLEY                 42.17N 88.42W
06/22/2016  E0.75 INCH       MCHENRY            IL   PUBLIC

            DIME SIZE HAIL NEAR HUNTLEY.

0758 PM     TORNADO          1 NE EARLVILLE          41.60N 88.91W
06/22/2016                   LA SALLE           IL   TRAINED SPOTTER

            TORNADO 1.5 MILES NORTHEAST OF EARLVILLE ON E1401 ROAD.

0807 PM     TSTM WND GST     1 SE BARTLETT           41.97N 88.19W
06/22/2016  E50.00 MPH       DUPAGE             IL   COCORAHS

            TIME ESTIMATED.

0811 PM     TORNADO          1 S LELAND              41.60N 88.80W
06/22/2016                   LA SALLE           IL   PUBLIC

            TORNADO SOUTH OF LELAND.

0812 PM     TORNADO          2 SW TROY GROVE         41.44N 89.11W
06/22/2016                   LA SALLE           IL   TRAINED SPOTTER

            TORNADO LIFTED EAST OF CHERRY.

0815 PM     TSTM WND DMG     MOUNT PROSPECT          42.07N 87.94W
06/22/2016                   COOK               IL   TRAINED SPOTTER

            DAMAGE TO A GAS STATION CANOPY. TIME ESTIMATED.

0829 PM     FUNNEL CLOUD     OTTAWA                  41.35N 88.84W
06/22/2016                   LA SALLE           IL   TRAINED SPOTTER

            NEAR IL 23 AND IL 52.

0829 PM     TORNADO          3 NW SHERIDAN           41.56N 88.73W
06/22/2016                   LA SALLE           IL   TRAINED SPOTTER

0830 PM     FLOOD            SOMONAUK                41.63N 88.68W
06/22/2016                   LA SALLE           IL   EMERGENCY MNGR

            FIVE INCHES OF STANDING WATER ON LELAND ROAD.

0830 PM     HAIL             ROGERS PARK             42.01N 87.67W
06/22/2016  E0.25 INCH       COOK               IL   TRAINED SPOTTER

0835 PM     TSTM WND DMG     CHICAGO                 41.88N 87.63W
06/22/2016                   COOK               IL   DEPT OF HIGHWAYS

            32 REPORTS OF TREE LIMBS DOWN ACROSS THE CITY OF CHICAGO.
            TIME ESTIMATED.

0857 PM     TORNADO          MARSEILLES              41.33N 88.69W
06/22/2016                   LA SALLE           IL   LAW ENFORCEMENT

            TWO STRUCTURES REPORTED WITH NO ROOFS ON N 2950TH ROAD.
            POSSIBLE TORNADO DAMAGE.

0859 PM     TORNADO          MARSEILLES              41.33N 88.69W
06/22/2016                   LA SALLE           IL   STORM CHASER

            SOUTH OF I-80.

0900 PM     TSTM WND DMG     MIDLOTHIAN              41.63N 87.72W
06/22/2016                   COOK               IL   PUBLIC

            TREE DOWN ON A HOME AT 147TH AND KEDZIE. POSTED ON NWS
            CHICAGO FACEBOOK. TIME ESTIMATED BASED ON RADAR.

0904 PM     TORNADO          1 N SENECA              41.32N 88.61W
06/22/2016                   LA SALLE           IL   BROADCAST MEDIA

            POWER LINES DOWN AND CORN FLATTENED NEAR 29TH ROAD.

0910 PM     TORNADO          SENECA                  41.34N 88.58W
06/22/2016                   LA SALLE           IL   TRAINED SPOTTER

            FIRE DEPARTMENT RESPONDING TO PEOPLE TRAPPED IN A HOUSE
            WITH NO INJURIES REPORTED.

0915 PM     TSTM WND DMG     6 N SENECA              41.39N 88.61W
06/22/2016                   LA SALLE           IL   TRAINED SPOTTER

            IN STAVENGER, TREE DOWN BLOCKING N 32ND STREET. NUMEROUS
            TREES DOWN EAST OF TOWN. CORN FLATTENED EAST OF TOWN.

0915 PM     LIGHTNING        HIGHLAND                41.55N 87.46W
06/22/2016                   LAKE               IN   AMATEUR RADIO

            LIGHTNING STRUCK A STORE AND STARTED A FIRE.

0915 PM     FUNNEL CLOUD     HARVEY                  41.61N 87.65W
06/22/2016                   COOK               IL   TRAINED SPOTTER

            NEAR 147TH AND I-57.

0951 PM     HEAVY RAIN       OHARE AIRPORT           41.98N 87.90W
06/22/2016  M1.24 INCH       COOK               IL   ASOS

            RAINFALL 1.24 INCHES THIS EVENING.

0955 PM     TSTM WND GST     KANKAKEE                41.12N 87.86W
06/22/2016  M55.00 MPH       KANKAKEE           IL   AWOS

1009 PM     FUNNEL CLOUD     7 NW PONTIAC            40.95N 88.74W
06/22/2016                   LIVINGSTON         IL   STORM CHASER

1015 PM     TSTM WND GST     PONTIAC                 40.88N 88.64W
06/22/2016  M68.00 MPH       LIVINGSTON         IL   AWOS

1015 PM     HEAVY RAIN       YORKVILLE               41.64N 88.45W
06/22/2016  M1.03 INCH       KENDALL            IL   CO-OP OBSERVER

            RAINFALL 1.03 INCHES SINCE 7AM.

1015 PM     TORNADO          5 NW PONTIAC            40.93N 88.71W
06/22/2016                   LIVINGSTON         IL   STORM CHASER

1017 PM     TORNADO          PONTIAC                 40.88N 88.64W
06/22/2016                   LIVINGSTON         IL   TRAINED SPOTTER

            TORNADO NEAR PONTIAC.

1020 PM     TORNADO          PONTIAC                 40.88N 88.64W
06/22/2016                   LIVINGSTON         IL   FIRE DEPT/RESCUE

            GAS STATION CANOPY ON TOP OF A SEMI TRUCK. LIGHT POLE
            DOWN ON I-55 EXIT. TWO MINOR INJURIES.

1020 PM     TORNADO          PONTIAC                 40.88N 88.64W
06/22/2016                   LIVINGSTON         IL   FIRE DEPT/RESCUE

            DAMAGE AT A TRAILER PARK WITH REPORTS OF PEOPLE TRAPPED.
            TWO MINOR INJURIES.

1024 PM     TORNADO          3 SE PONTIAC            40.85N 88.60W
06/22/2016                   LIVINGSTON         IL   EMERGENCY MNGR

1028 PM     HEAVY RAIN       PONTIAC                 40.88N 88.64W
06/22/2016  M2.10 INCH       LIVINGSTON         IL   AMATEUR RADIO

1038 PM     TSTM WND DMG     BROOK                   40.87N 87.37W
06/22/2016                   NEWTON             IN   FIRE DEPT/RESCUE

            THIRD OF A ROOF OF A LARGE COMMERCIAL BUILDING WAS BLOWN
            OFF.

1049 PM     TORNADO          2 W CHATSWORTH          40.75N 88.33W
06/22/2016                   LIVINGSTON         IL   STORM CHASER

            TORNADO EAST OF FOREST.

1055 PM     TORNADO          4 WNW PIPER CITY        40.78N 88.25W
06/22/2016                   LIVINGSTON         IL   LAW ENFORCEMENT

1055 PM     TSTM WND GST     RENSSELAER              40.94N 87.15W
06/22/2016  M53.00 MPH       JASPER             IN   AWOS

1143 PM     TORNADO          CISSNA PARK             40.57N 87.89W
06/22/2016                   IROQUOIS           IL   EMERGENCY MNGR

            POSSIBLE TORNADO DAMAGE TO THE SCHOOL GROUNDS ON THE
            NORTH SIDE OF TOWN, INCLUDING THE DUGOUT OF THE ROOF BLOW
            OFF. ONE HALF MILE NORHEAST OF TOWN ON IL-49 A COUPLE OF
            BUILDINGS WERE DAMAGED WITH TREES TWISTED DOWN. DAMAGE
            EXTENDS TO THE SOUTHEAST WITH SIDING, TREE, AND POWER
            LINE DAMAGE AND CORN FLATTENED. TIME ESTIMATED FROM
            RADAR.

0115 AM     TSTM WND DMG     SENECA                  41.30N 88.61W
06/23/2016                   LA SALLE           IL   EMERGENCY MNGR

            2 SIGNIFICANTLY DAMAGED HOMES. ONE ON N2850TH RD JUST
            WEST OF E 29TH RD. THIS HOME WAS SHIFTED SLIGHTLY OFF ITS
            FOUNDATION. THE OTHER HOME IS ON E 29TH RD IN THE
            VICINITY OF N 28TH RD. BOTH HOMES JUST NORTH OF SENECA. -
            DELAYED REPORT.


&&

$$

ACS

Radar

Radar Loop from June 22, 2016

Rainfall

24 Hour Rainfall ending at 7 am June 23rd

Public Information Statement
National Weather Service Chicago IL
845 AM CDT Thu Jun 23 2016

...Morning Rainfall Roundup...

   The following are rain amounts for the previous 24-hours
   as measured in the morning by NWS Cooperative Observers
   and CoCoRaHS observers.
   Observations are usually taken between 6 AND 8 AM.

   24-hour rainfall amounts
       for Thursday(06/23/16)...


Illinois                                       Rain
  Location (County):                           fall (inches)

  Watseka 6.9WNW (Iroquois)....................3.02
  Watseka (Iroquois)...........................2.67
  Dwight (Livingston)..........................2.65
  Chebanse (Kankakee)..........................2.65
  Milford (Iroquois)...........................2.54
  Paw Paw (Lee)................................2.49
  Steward (Lee)................................2.42
  Streator 4ENE (La Salle).....................2.40
  Mendota (La Salle)...........................2.35
  Somonauk 2NE (De Kalb).......................2.32
  Dwight 4NNW (Grundy).........................2.31
  Bourbonnais (Kankakee).......................2.24
  Evanston 1N (Cook)...........................2.20
  Channahon 2SSE (Will)........................2.16
  Wilmington 6NW (Will)........................2.15
  Ashkum 5.6E (Iroquois).......................2.14
  Oglesby 1ESE (La Salle)......................2.14
  Morris (Grundy)..............................2.09
  Morris 5NNW (Grundy).........................2.06
  Earlville 3S (La Salle)......................2.00
  Mendota 2SE (La Salle).......................1.98
  Wilmington 4WNW (Will).......................1.97
  Coal City 4NNW (Grundy)......................1.94
  Schaumburg 2E (Cook).........................1.94
  Carbon Hill 3.1N (Grundy)....................1.94
  Wilmington 3SE (Will)........................1.94
  Morris 2SSE (Grundy).........................1.88
  Morris 6ESE (Grundy).........................1.82
  Minooka (Grundy).............................1.81
  Elk Grove Village 1ESE (Cook)................1.77
  Momence 6SSW (Kankakee)......................1.77
  Park Ridge (Cook)............................1.76
  Bonfield 4WSW (Kankakee).....................1.72
  Dixon (Lee)..................................1.71
  Park Ridge 1WNW (Cook).......................1.70
  Dixon 3NNW (Lee).............................1.68
  Ottawa (La Salle)............................1.60
  Wheeling (Cook)..............................1.59
  Chicago 6NNE (Cook)..........................1.55
  St Anne (Kankakee)...........................1.55
  Braceville (Grundy)..........................1.52
  Lincolnwood 2E (Cook)........................1.51
  Barrington (Lake)............................1.50
  Ashton (Lee).................................1.49
  Peru (La Salle)..............................1.40
  Oak Park 2S (Cook)...........................1.35
  Marseilles (La Salle)........................1.31
  Ohare (Cook).................................1.31
  Hoffman Estates 5W (Cook)....................1.26
  Chatsworth (Livingston)......................1.25
  Elgin (Kane).................................1.21
  Buckley (Iroquois)...........................1.19
  Manhattan 2SE (Will).........................1.16
  Arlington Heights 1SW (Cook).................1.09
  Villa Park 1NW (Du Page).....................1.09
  Marseilles 5WNW (La Salle)...................1.08
  Pontiac 1ESE (Livingston)....................1.08
  Pontiac (Livingston).........................1.06
  Elgin (Kane).................................1.05
  Chicago 6ESE (Cook)..........................1.05
  Lake Zurich (Lake)...........................1.05
  Glencoe (Cook)...............................1.04
  Algonquin 1N (McHenry).......................1.04
  Ottawa 1NW (La Salle)........................1.02
  Elk Grove Village 2WSW (Cook)................1.01
  Cicero 2SSW (Cook)...........................1.00
  Elmhurst 2SE (Du Page).......................0.95
  Seneca 1NNE (La Salle).......................0.95
  Gilberts (Kane)..............................0.94
  Elwood 5NE (Will)............................0.94
  Peotone (Will)...............................0.94
  Genoa (De Kalb)..............................0.92
  Elgin 2W (Kane)..............................0.92
  Fairbury (Livingston)........................0.90
  Joliet Lock/dam (Will).......................0.85
  Elburn (Kane)................................0.84
  Oswego 5SSE (Kendall)........................0.84
  Elgin 2WNW (Kane)............................0.84
  Amboy (Lee)..................................0.83
  La Grange Park 1SSW (Cook)...................0.82
  Riverwoods (Lake)............................0.81
  Buffalo Grove 2N (Lake)......................0.78
  Joliet (Will)................................0.78
  Rochelle (Ogle)..............................0.78
  Highwood 1S (Lake)...........................0.77
  Batavia 1WSW (Kane)..........................0.74
  Plainfield 3SE (Will)........................0.74
  Batavia (Kane)...............................0.72
  Aurora (Kane)................................0.70
  Geneva 4WSW (Kane)...........................0.70
  Batavia 1WNW (Kane)..........................0.70
  Midway (Cook)................................0.69
  Batavia 2WNW (Kane)..........................0.68
  Lily Lake 2E (Kane)..........................0.65
  St. Charles 6NW (Kane).......................0.65
  Geneva 1SSW (Kane)...........................0.65
  Woodstock 4SW (McHenry)......................0.63
  De Kalb (De Kalb)............................0.62
  Carol Stream (Du Page).......................0.62
  Joliet 2n (Will).............................0.62
  Paxton (Ford)................................0.62
  Cissna Park 1S (Iroquois)....................0.61
  North Aurora 2NE (Kane)......................0.60
  De Kalb 2NNE (De Kalb).......................0.59
  Montgomery 1SSE (Kendall)....................0.59
  Midway Coop (Cook)...........................0.59
  Sugar Grove 1NE (Kane).......................0.58
  Plainfield 1SW (Will)........................0.58
  Plainfield (Will)............................0.58
  Homer Glen 1ENE (Will).......................0.57
  Palos Park 1SW (Cook)........................0.56
  Plainfield 2SSE (Will).......................0.56
  Gibson 3WNW (Ford)...........................0.55
  Plainfield 3NNW (Will).......................0.55
  Oak Lawn 2SE (Cook)..........................0.54
  Romeoville (Will)............................0.54
  Rochelle (Ogle)..............................0.53
  Park Forest 1SW (Cook).......................0.51
  Willow Springs (Cook)........................0.51
  Cortland (De Kalb)...........................0.50
  Aurora 4SE (Du Page).........................0.50
  Downers Grove 0.4NNE (Du Page)...............0.49
  Winfield (Du Page)...........................0.48
  Lisle (Du Page)..............................0.46
  New Lenox 2SE (Will).........................0.45
  Park Forest (Cook)...........................0.45
  Gibson 2SW (Ford)............................0.44
  Manhattan (Will).............................0.44
  Aurora (Kane)................................0.43
  West Chicago (Du Page).......................0.43
  Monee (Will).................................0.43
  Westmont (Du Page)...........................0.42
  Lansing (Cook)...............................0.41
  Worth (Cook).................................0.41
  Mundelein 2WNW (Lake)........................0.41
  Rockford 3NE (Winnebago).....................0.41
  Belvidere (Boone)............................0.40
  Woodstock 1SSW (McHenry).....................0.40
  Beecher 3SSE (Will)..........................0.40
  Mchenry (McHenry)............................0.40
  Mundelein (Lake).............................0.40
  Lockport 3ESE (Will).........................0.39
  Lockport 1SE (Will)..........................0.38
  Crete 3E (Will)..............................0.37
  Woodstock (McHenry)..........................0.37
  Park Forest 1NNE (Cook)......................0.33
  Burr Ridge 2SW (Du Page).....................0.32
  Alsip (Cook).................................0.31
  New Lenox 3E (Will)..........................0.26
  Winthrop Harbor 1SSW (Lake)..................0.23
  Chicago Ridge (Cook).........................0.21
  Round Lake 2WNW (Lake).......................0.21
  Harvard (McHenry)............................0.20
  Roscoe 2ESE (Winnebago)......................0.20
  Roscoe 2se (Winnebago).......................0.20
  Lakemoor 2SE (Lake)..........................0.19
  Woodstock 5nw (McHenry)......................0.19
  Capron (Boone)...............................0.18
  Lake Villa 1SSW (Lake).......................0.17
  Lake Villa 2WSW (Lake).......................0.15
  Byron 3N (Ogle)..............................0.15
  Rockford 1NW (Winnebago).....................0.13
  Rockford (Winnebago).........................0.12
  Beach Park 1W (Lake).........................0.09
  Waukegan (Lake)..............................0.07

Indiana                                        Rain
  Location (County):                           fall (inches)

  Kentland 2SSE (Newton).......................2.12
  Rensselaer 2SSW (Jasper).....................1.98
  Rensselaer (Jasper)..........................1.80
  Morocco (Newton).............................1.70
  Remington (Jasper)...........................1.33
  Rensselaer 5E (Jasper).......................1.00
  Lake Village (Newton)........................1.00
  Portage 3E (Porter)..........................0.96
  Rensselaer 5NW (Jasper)......................0.88
  Gary 5ENE (Lake).............................0.86
  Rensselaer 4N (Jasper).......................0.83
  Valparaiso 6WSW (Porter).....................0.76
  Valparaiso 7WSW (Porter).....................0.72
  (wv90)Hobart 1ENE (Lake).....................0.71
  Valparaiso 4SW (Porter)......................0.71
  Portage 1ESE (Porter)........................0.71
  Indiana Dunes (Porter).......................0.70
  Hobart 1SSW (Lake)...........................0.69
  De Motte 1NNW (Jasper).......................0.68
  Hobart 1NNW (Lake)...........................0.68
  Crown Point 1N (Lake)........................0.65
  Gary 4SSW (Lake).............................0.60
  Rensselaer 8ENE (Jasper).....................0.59
  Hobart 2E (Lake).............................0.59
  Rensselaer 8NE (Jasper)......................0.57
  De Motte 6S (Jasper).........................0.55
  Valparaiso 6SSW (Porter).....................0.55
  Valparaiso 6S (Porter).......................0.55
  Valparaiso 2WNW (Porter).....................0.53
  Valparaiso 1SE (Porter)......................0.50
  (kb9f)Valparaiso 4S (Porter).................0.48
  Wheatfield 3S (Jasper).......................0.47
  Rensselaer 10NNE (Jasper)....................0.46
  (w9opr)Wheatfield 1ENE (Jasper)..............0.46
  Winfield 1NE (Lake)..........................0.43
  St. John (Lake)..............................0.41
  Hebron 4NE (Porter)..........................0.39
  De Motte 1SSW (Jasper).......................0.38
  Lakes Of The Four Seasons 2NNE (Porter)......0.37
  Crown Point 2WSW (Lake)......................0.34
  (w9mal)Merrillville 2NNW (Lake)..............0.30

$$

Environment

Figure 1:
Surface Weather

Figure 2:
Upper Level Weather: 7 pm CDT NWS Quad Cities Weather Balloon Launch

Figure 3:
Valparaiso University Meteorology Department's Afternoon Sounding: 4 pm CDT (north of warm front, but note high helicity values).

Environment

Figure 4:
Key Tornado Ingredients

Figure 5:
Primary Mesocyclone Paths

Service


Figure 1: SPC Day 3 Outlook 6/20/2016	Figure 2: SPC Day 2 Outlook 6/21/2016	Figure 3: SPC Day 1 Outlook Issued at 11:30 a.m. 6/22/2016	Figure 4: SPC Day 1 Outlook with Verification (link to event wrap up)


Figure 5: NWS Chicago Weather Story Graphic issued at 12:05 pm 6/22/2016	Figure 6: NWS Chicago Graphical NOWcast issued at 6:25 pm 6/22/2016	Figure 7: NWS Chicago Graphical NOWcast issued at 7:38 pm 6/22/2016

Map of warnings issued on June 22, 2016

Climatology

June 22, 2016 had the most tornadoes in the NWS Chicago County Warning Area (CWA) since June 30, 2014.

The EF-2 tornado in LaSalle County was the strongest in that county since EF-2 damage occurred on November 17, 2013 with the long tracked tornado from Washington, IL through the panhandle of LaSalle County.

Similarly, the EF-2 tornado in Livingston County was the strongest in that county since the ending portion of the November 17, 2013 Washington, IL tornado.

The eight tornadoes in LaSalle County were the most in that county on a single calendar day on record dating back through at least 1950. The previous highest days were four tornadoes in LaSalle County on both April 20, 2004 and June 5, 2010. A LaSalle County climatology map can be found here.

Interestingly, this event had several similarities to that of one exactly one year earlier on June 22, 2015, with supercell tornadoes having occurred across Lee, LaSalle, Grundy, and Kankakee Counties. That event's tornadoes were almost entirely from one long-lived supercell.

More on tornado climatology in the NWS Chicago CWA can be found on our local Tornado Climatology Page.