Alert archive / Indiana / Tornado Warnings in 2011

Tornado Warning 18, NWS Chicago, IL

June 15, 20114 counties in Indiana; Kankakee County, Illinois

NWS Chicago, IL issued this tornado warning at Jun 15, 2011, 6:54 PM CDT for 4 counties in Indiana; Kankakee County, Illinois. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 15, 2011, 6:54 PM CDT (23:54 UTC)
Expired
Jun 15, 2011, 7:45 PM CDT
In force
51 min
Issued by
NWS Chicago, IL
Area
Storm-based polygon

Counties Kankakee County, IL, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN

The radar

The Chicago radar (KLOT), 74 km from the middle of the area, began a volume at 23:54 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.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.9 hours before the alert went out and 269 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-pSkew-T log-p diagram, Davenport, at 12:00Z on 2011-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2011-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
559 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
75 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.

538 
WFUS53 KLOT 152354
TORLOT
ILC091-INC073-089-111-127-160045-
/O.NEW.KLOT.TO.W.0018.110615T2354Z-110616T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
654 PM CDT WED JUN 15 2011

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN KANKAKEE COUNTY...
  NORTHWESTERN JASPER COUNTY...
  SOUTHERN LAKE COUNTY...
  NORTHERN NEWTON COUNTY...
  SOUTHWESTERN PORTER COUNTY...

* UNTIL 745 PM CDT

* AT 650 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 7 MILES EAST OF GRANT PARK...OR 7 MILES NORTHWEST
  OF LAKE VILLAGE...AND MOVING NORTHEAST AT 25 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
  LOWELL AROUND 710 PM.
  LAKE DALECARLIA AROUND 715 PM.
  HEBRON AROUND 735 PM.
  LAKES OF THE FOUR SEASONS AROUND 740 PM.
  BOONE GROVE AROUND 745 PM.

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 4146 8718 4123 8701 4112 8751 4127 8759
TIME...MOT...LOC 2354Z 243DEG 21KT 4123 8749

$$

RODRIGUEZ
2 follow-up statements
987 
WWUS53 KLOT 160002
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
702 PM CDT WED JUN 15 2011

ILC091-160012-
/O.CAN.KLOT.TO.W.0018.000000T0000Z-110616T0045Z/
KANKAKEE IL-
702 PM CDT WED JUN 15 2011

...THE TORNADO WARNING FOR NORTHEASTERN KANKAKEE COUNTY IS
CANCELLED...

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

LAT...LON 4113 8747 4128 8752 4146 8718 4123 8701
TIME...MOT...LOC 0002Z 243DEG 21KT 4125 8743

$$

INC073-089-111-127-160045-
/O.CON.KLOT.TO.W.0018.000000T0000Z-110616T0045Z/
PORTER IN-NEWTON IN-JASPER IN-LAKE IN-
702 PM CDT WED JUN 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN LAKE...
NORTHWESTERN JASPER...NORTHEASTERN NEWTON AND SOUTHWESTERN PORTER
COUNTIES UNTIL 745 PM CDT...

AT 658 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR LOWELL...MOVING NORTHEAST AT 25 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  LOWELL AROUND 710 PM CDT.
  LAKE DALECARLIA AROUND 715 PM CDT.
  HEBRON AROUND 735 PM CDT.
  LAKES OF THE FOUR SEASONS AROUND 740 PM CDT.
  BOONE GROVE AROUND 745 PM CDT.

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 4113 8747 4128 8752 4146 8718 4123 8701
TIME...MOT...LOC 0002Z 243DEG 21KT 4125 8743

$$

RODRIGUEZ
018 
WWUS53 KLOT 160018
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
718 PM CDT WED JUN 15 2011

INC111-160028-
/O.CAN.KLOT.TO.W.0018.000000T0000Z-110616T0045Z/
NEWTON IN-
718 PM CDT WED JUN 15 2011

...THE TORNADO WARNING FOR NORTHEASTERN NEWTON COUNTY IS CANCELLED...

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

LAT...LON 4119 8720 4117 8727 4118 8727 4122 8728
      4118 8733 4118 8737 4131 8745 4146 8718
      4123 8701
TIME...MOT...LOC 0018Z 243DEG 21KT 4129 8732

$$

INC073-089-127-160045-
/O.CON.KLOT.TO.W.0018.000000T0000Z-110616T0045Z/
PORTER IN-JASPER IN-LAKE IN-
718 PM CDT WED JUN 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN LAKE...
NORTHWESTERN JASPER AND SOUTHWESTERN PORTER COUNTIES UNTIL 745 PM
CDT...

AT 715 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR LOWELL...MOVING NORTHEAST AT 25 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  HEBRON AROUND 735 PM CDT.
  LAKES OF THE FOUR SEASONS AROUND 740 PM CDT.
  BOONE GROVE AROUND 745 PM CDT.

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 4119 8720 4117 8727 4118 8727 4122 8728
      4118 8733 4118 8737 4131 8745 4146 8718
      4123 8701
TIME...MOT...LOC 0018Z 243DEG 21KT 4129 8732

$$

RODRIGUEZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 5:39 AM CDTSevere Thunderstorm WarningLOTBenton, Jasper, Newton66 min
Jun 15, 6:28 PM CDTTornado WarningLOTLake, Porter32 min
Jun 15, 2:53 AM CDTSevere Thunderstorm WarningLOTGrundy, LaSalle, Livingston37 min
Jun 15, 3:40 AM CDTSpecial Weather StatementLOTKankakee, Will65 min
Jun 15, 4:35 AM CDTAreal Flood AdvisoryLOTFord, Iroquois, Livingston5 hr
Jun 15, 6:04 AM CDTSpecial Marine WarningLOT116 min
Jun 15, 8:10 AM CDTSpecial Marine WarningLOT106 min
Jun 15, 9:40 AM CDTRip Current StatementLOTLake3 hr

Nearby

Tornado Warnings in Indiana, 2011Tornado 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.