Alert archive / Illinois / Tornado Warnings in 2019

Tornado Warning 13, NWS Chicago, IL

May 27, 2019Cook County, Will County, Illinois; Lake County, Indiana

NWS Chicago, IL issued this tornado warning at May 27, 2019, 4:14 PM CDT for Cook County, Will County, Illinois; Lake County, Indiana. It was in force for 46 min. 5 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: May 27, 2019, 4:14 PM CDT (21:14 UTC)
Expired: May 27, 2019, 5:00 PM CDT
In force: 46 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

Counties Cook County, IL, Will County, IL, Lake County, IN

The radar

The Chicago radar (KLOT), 53 km from the middle of the area, began a volume at 21:15 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
May 27, 4:15 PM CDT	TSTM WND DMG	Steger, IL	ROOF BLOWN OFF A BUILDING ON PARK AVENUE. TIME ESTIMATED. POSSIBLE TORNADO DAMAGE.
May 27, 4:21 PM CDT	HAIL 0.88	Crete, IL
May 27, 4:27 PM CDT	TORNADO	1 Sse Sauk Village, IL	BRIEF TORNADO WITH MAXIMUM ESTIMATED WINDS OF 85 MPH AND WIDTH OF 50 YARDS PRODUCED ONLY MINOR DAMAGE TO ROOFS AND A DOWNED LIGHT POLE ONTO A CAR.
May 27, 4:30 PM CDT	TSTM WND DMG	2 Ssw Dyer, IN	TREE DAMAGE AND SHED DAMAGE REPORTED NEAR SCOTTY LANE AND HEART STREET. TIME ESTIMATED.
May 27, 4:32 PM CDT	TORNADO	2 Ssw Dyer, IN	A COMBINATION OF TRAINED SPOTTER REPORTS (RELAYED BY HAMS IN REAL TIME) AND DAMAGE PICTURES RELAYED BY LAKE CO DEPUTY EM INDICATE BRIEF TORNADO OCCURRED NEAR E SAUK TRAIL AND HART STREET.

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
May 27, 1:22 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.2 hours before the alert went out and 188 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: 1092 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

582 
WFUS53 KLOT 272114
TORLOT
ILC031-197-INC089-272200-
/O.NEW.KLOT.TO.W.0013.190527T2114Z-190527T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Chicago/Romeoville
414 PM CDT Mon May 27 2019

The National Weather Service in Chicago has issued a

* Tornado Warning for...
  East central Will County in northeastern Illinois...
  Southeastern Cook County in northeastern Illinois...
  Northern Lake County in northwestern Indiana...

* Until 500 PM CDT.
    
* At 414 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Steger, moving northeast at 25 mph.

  HAZARD...Tornado and ping pong ball 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 dangerous storm will be near...
  Lynwood, Glenwood, Sauk Village and Thornton around 425 PM CDT.
  Ford Heights and Lynwood around 430 PM CDT.
  Schererville, Lansing, Munster, St. John and Dyer around 435 PM 
  CDT.
  Highland around 440 PM CDT.
  Crown Point and Griffith around 445 PM CDT.
  Merrillville around 450 PM CDT.
  Gary, Hobart, Lake Station and New Chicago around 500 PM CDT.

Other locations impacted by this tornadic thunderstorm include South
Chicago Heights and East Hazel Crest.

This includes...  Indiana University Northwest, Purdue University
Calumet, Illiana Motor Speedway, Prairie State College, and South
Shore Rail Cats Baseball.
 
Including the following interstates...
 I-57 near mile marker 341.
 I-94 between mile markers 72 and 74.
 I-294 between mile markers 72 and 74.
 Indiana I-80 between mile markers 1 and 15.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4139 8768 4151 8775 4168 8748 4167 8747
      4168 8746 4167 8744 4168 8742 4167 8742
      4165 8744 4165 8743 4163 8736 4162 8729
      4162 8722 4147 8722
TIME...MOT...LOC 2114Z 245DEG 22KT 4146 8765 

TORNADO...RADAR INDICATED
HAIL...1.50IN

OEMC zones...TORNADO WARNING. 12.
 
$$

Carlaw

4 follow-up statements

120 
WWUS53 KLOT 272130
SVSLOT

Severe Weather Statement
National Weather Service Chicago/Romeoville
430 PM CDT Mon May 27 2019

ILC031-197-INC089-272200-
/O.CON.KLOT.TO.W.0013.000000T0000Z-190527T2200Z/
Will IL-Cook IL-Lake IN-
430 PM CDT Mon May 27 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR EAST
CENTRAL WILL...SOUTHEASTERN COOK AND NORTHERN LAKE COUNTIES...
        
At 429 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Lynwood, moving northeast at 25 mph.

HAZARD...Tornado and ping pong ball size hail.

SOURCE...Weather spotters reported rapid rotation developing near 
         Steger Road and 394 along with a funnel cloud. 

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 dangerous storm will be near...
  Munster around 435 PM CDT.
  Schererville and Highland around 440 PM CDT.
  Crown Point and Griffith around 445 PM CDT.
  Merrillville around 450 PM CDT.
  Gary, Hobart, Lake Station and New Chicago around 500 PM CDT.

Other locations impacted by this tornadic thunderstorm include South
Chicago Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4140 8762 4151 8762 4167 8744 4168 8742
      4167 8742 4165 8744 4165 8743 4163 8736
      4162 8729 4162 8722 4147 8722
TIME...MOT...LOC 2129Z 246DEG 22KT 4149 8753 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

Carlaw

123 
WWUS53 KLOT 272132 CCA
SVSLOT

Severe Weather Statement
National Weather Service Chicago/Romeoville
432 PM CDT Mon May 27 2019

ILC031-197-INC089-272200-
/O.COR.KLOT.TO.W.0013.000000T0000Z-190527T2200Z/
Will IL-Cook IL-Lake IN-
432 PM CDT Mon May 27 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR EAST
CENTRAL WILL...SOUTHEASTERN COOK AND NORTHERN LAKE COUNTIES...
    
At 431 PM CDT, a confirmed tornado was located near E Sauk Trail and 
the State Line just west of Dyer, moving towards the northeast.

HAZARD...Damaging tornado and ping pong ball 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...
  St. John and Dyer around 435 PM CDT.
  Schererville and Munster around 440 PM CDT.
  Highland around 445 PM CDT.
  Merrillville, Crown Point and Griffith around 450 PM CDT.
  Gary, Hobart, Lake Station and New Chicago around 500 PM CDT.

Other locations impacted by this tornadic thunderstorm include South
Chicago Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 4140 8762 4151 8762 4167 8744 4168 8742
      4167 8742 4165 8744 4165 8743 4163 8736
      4162 8729 4162 8722 4147 8722
TIME...MOT...LOC 2130Z 246DEG 22KT 4149 8753 

TORNADO...OBSERVED
HAIL...1.50IN

$$

Carlaw

352 
WWUS53 KLOT 272139
SVSLOT

Severe Weather Statement
National Weather Service Chicago/Romeoville
439 PM CDT Mon May 27 2019

ILC031-197-272148-
/O.CAN.KLOT.TO.W.0013.000000T0000Z-190527T2200Z/
Will IL-Cook IL-
439 PM CDT Mon May 27 2019

...THE TORNADO WARNING FOR EAST CENTRAL WILL AND SOUTHEASTERN COOK
COUNTIES 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 900 PM CDT for northeastern
Illinois...and northwestern Indiana.

LAT...LON 4147 8722 4143 8744 4146 8753 4157 8752
      4163 8735 4162 8729 4162 8722
TIME...MOT...LOC 2138Z 262DEG 31KT 4149 8741 

$$

INC089-272200-
/O.CON.KLOT.TO.W.0013.000000T0000Z-190527T2200Z/
Lake IN-
439 PM CDT Mon May 27 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR NORTHERN
LAKE COUNTY...
    
At 438 PM CDT, a severe thunderstorm capable of producing a tornado 
was located over Schererville, moving east at 35 mph. Spotters 
report that the earlier tornado near Dyer has lifted, but this storm 
remains capable of producing a tornado at any time!

HAZARD...Tornado and half dollar 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 dangerous storm will be near...
  Merrillville around 445 PM CDT.
  Lake Station and New Chicago around 450 PM CDT.
  Hobart around 455 PM CDT.
  Portage around 500 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4147 8722 4143 8744 4146 8753 4157 8752
      4163 8735 4162 8729 4162 8722
TIME...MOT...LOC 2138Z 262DEG 31KT 4149 8741 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

Carlaw

600 
WWUS53 KLOT 272147
SVSLOT

Severe Weather Statement
National Weather Service Chicago/Romeoville
447 PM CDT Mon May 27 2019

INC089-272200-
/O.CON.KLOT.TO.W.0013.000000T0000Z-190527T2200Z/
Lake IN-
447 PM CDT Mon May 27 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
NORTHEASTERN LAKE COUNTY...
    
At 446 PM CDT, a severe thunderstorm capable of producing a tornado 
was located over Merrillville, moving northeast at 25 mph. Trained 
spotters continue to report rapid rotation and occasional funnel 
clouds with this dangerous thunderstorm. 

HAZARD...Tornado and half dollar 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 dangerous storm will be near...
  New Chicago around 455 PM CDT.
  Gary, Portage, Hobart and Lake Station around 500 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4147 8722 4144 8739 4155 8741 4163 8732
      4162 8729 4162 8722
TIME...MOT...LOC 2146Z 246DEG 22KT 4151 8735 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

Carlaw

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 8:05 PM CDT	River Flood Advisory	LOT	LaSalle	13 hr
May 26, 8:08 PM CDT	River Flood Watch	LOT	Kane, Kendall	13 hr
May 27, 9:22 AM CDT	River Flood Warning	LOT	Kane, Kendall	21 days
May 27, 9:22 AM CDT	River Flood Warning	LOT	LaSalle	5 days
May 27, 9:26 AM CDT	River Flood Watch	LOT	Winnebago	14 min
May 27, 10:02 AM CDT	River Flood Warning	LOT	Winnebago	14 days
May 27, 10:12 AM CDT	River Flood Warning	LOT	Winnebago	9 hr
May 27, 10:38 AM CDT	River Flood Warning	LOT	Ogle	9 hr
May 27, 10:48 AM CDT	River Flood Watch	LOT	Winnebago	9 hr
May 27, 11:33 AM CDT	River Flood Warning	LOT	LaSalle	5 days
May 27, 11:38 AM CDT	River Flood Advisory	LOT	Grundy	5 days
May 27, 1:10 PM CDT	Special Weather Statement	LOT	Kendall	35 min
May 27, 1:18 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Kendall, LaSalle	42 min
May 27, 1:43 PM CDT	Severe Thunderstorm Warning	LOT	DuPage, Kane, Kendall, Will	62 min
May 27, 1:55 PM CDT	Special Marine Warning	LOT		2 hr
May 27, 2:00 PM CDT	Areal Flood Advisory	LOT	Cook, DuPage, Kane, Kendall, Will	2 hr
May 27, 2:07 PM CDT	Tornado Warning	LOT	Cook, Will	38 min
May 27, 2:13 PM CDT	Severe Thunderstorm Warning	LOT	Cook	62 min
May 27, 2:30 PM CDT	Tornado Warning	LOT	Ogle	45 min
May 27, 2:38 PM CDT	Flash Flood Warning	LOT	Cook	3 hr
May 27, 2:44 PM CDT	Severe Thunderstorm Warning	LOT	Cook	61 min
May 27, 3:20 PM CDT	Severe Thunderstorm Warning	LOT	Lee	40 min
May 27, 3:40 PM CDT	Tornado Warning	LOT	Lee	35 min
May 27, 4:00 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Will	45 min
May 27, 4:13 PM CDT	Tornado Warning	LOT	LaSalle, Lee	32 min
May 27, 4:17 PM CDT	Areal Flood Advisory	LOT	Cook, Will	3 hr
May 27, 4:20 PM CDT	Special Marine Warning	LOT		115 min
May 27, 4:25 PM CDT	Special Weather Statement	LOT	Cook, DuPage, Kane	50 min
May 27, 4:43 PM CDT	Areal Flood Advisory	LOT	DuPage, Kane, Kendall, Will	3 hr
May 27, 5:20 PM CDT	Special Weather Statement	LOT	Will	40 min
May 27, 5:24 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois	33 min
May 27, 5:27 PM CDT	Areal Flood Advisory	LOT	Cook, DuPage, Kane, Kendall, Will	3 hr
May 27, 5:32 PM CDT	Special Weather Statement	LOT	Cook	13 min
May 27, 5:42 PM CDT	Special Weather Statement	LOT	Iroquois	48 min
May 27, 6:06 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	54 min
May 27, 3:34 PM CDT	Severe Thunderstorm Warning	LOT	Lake, Porter	56 min
May 27, 4:02 PM CDT	Tornado Warning	LOT	Porter	13 min
May 27, 4:52 PM CDT	Tornado Warning	LOT	Lake, Porter	42 min
May 27, 6:01 PM CDT	Special Weather Statement	LOT	Jasper, Newton	29 min
May 27, 6:10 PM CDT	Severe Thunderstorm Warning	LOT	Lake, Porter	21 min
May 27, 6:58 PM CDT	Severe Thunderstorm Warning	LOT	Benton	9 min

Nearby

Tornado Warnings in Illinois, 2019 Tornado Warnings in Indiana, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.