Alert archive / Illinois / Tornado Warnings in 2016

Tornado Warning 4, NWS Chicago, IL

March 15, 2016Kankakee County, Illinois

NWS Chicago, IL issued this tornado warning at Mar 15, 2016, 10:34 PM CDT for Kankakee County, Illinois. It was in force for 26 min. 4 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
Mar 15, 2016, 10:34 PM CDT (03:34 UTC)
Expired
Mar 15, 2016, 11:00 PM CDT
In force
26 min
Issued by
NWS Chicago, IL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Kankakee County, IL

The radar

The Chicago radar (KLOT), 70 km from the middle of the area, began a volume at 03:35 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

TimeReportWhereRemark
Mar 15, 10:37 PM CDTTSTM WND DMG1 Nw St. Anne, ILSILO BLOWN ONTO POWER LINES. POSSIBLE TORNADO DAMAGE. TIME ESTIMATED PER RADAR.
Mar 15, 10:37 PM CDTTSTM WND DMG1 Nw St. Anne, ILSILO BLOWN ONTO POWER LINES. WHAT WAS THOUGHT TO BE POSSIBLE TORNADO DAMAGE WAS DETERMINED TO BE CAUSED BY STRAIGHT LINE WINDS THANKS TO INFORMATION FROM EMERGENCY MANAGER AND NWS SURVEY.
Mar 15, 10:42 PM CDTTSTM WND DMG2 Ne St. Anne, ILPOWER FLASHES SEEN FROM MULTIPLE SPOTTERS AND PUBLIC FROM NEAR ST ANNE...HOPKINS PARK...AND GRANT PARK. INFORMATION FROM EMERGENCY MANAGER AND AN NWS SURVEY DETERMINED THIS WAS CAUSED BY STRAIGHT LINE WINDS.
Mar 15, 10:42 PM CDTTSTM WND DMG2 Ne St. Anne, ILPOWER FLASHES SEEN FROM MULTIPLE SPOTTERS AND PUBLIC FROM NEAR ST ANNE...HOPKINS PARK...AND GRANT PARK. POSSIBLY CAUSED BY A TORNADO.

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.

IssuedProductOfficeLasted
Mar 15, 8:40 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.6 hours before the alert went out and 132 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, Lincoln, IL at 00:00Z on 2016-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1364 joules per kilogram.LCLLFCEL10008507005003002001001 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, Lincoln, IL at 00:00Z on 2016-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.1939587897117Sfc1 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
1364 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1257 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
241 m²/s²
Significant tornado parameter
1.2
Supercell composite
8.9

Open this sounding in Storm Lab

The text

As transmitted.

592 
WFUS53 KLOT 160334
TORLOT
ILC091-160400-
/O.NEW.KLOT.TO.W.0004.160316T0334Z-160316T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1034 PM CDT TUE MAR 15 2016

THE NATIONAL WEATHER SERVICE IN CHICAGO  HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN KANKAKEE COUNTY IN NORTHEASTERN ILLINOIS...

* UNTIL 1100 PM CDT
    
* AT 1034 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER ST. ANNE...OR 9 MILES SOUTHEAST OF
  KANKAKEE...MOVING NORTHEAST AT 40 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 DANGEROUS STORM WILL BE NEAR...
  HOPKINS PARK AROUND 1045 PM CDT.
  MOMENCE AROUND 1050 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 4101 8760 4101 8771 4105 8777 4122 8762
      4117 8753 4107 8753
TIME...MOT...LOC 0334Z 229DEG 36KT 4102 8773 

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

$$

BMD
2 follow-up statements
512 
WWUS53 KLOT 160345
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1045 PM CDT TUE MAR 15 2016

ILC091-160400-
/O.CON.KLOT.TO.W.0004.000000T0000Z-160316T0400Z/
KANKAKEE IL-
1045 PM CDT TUE MAR 15 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
SOUTHEASTERN KANKAKEE COUNTY...
    
AT 1045 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED WEST OF HOPKINS PARK...AND SOUTH OF
MOMENCE...MOVING NORTHEAST AT 35 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 DANGEROUS STORM WILL BE NEAR...
  MOMENCE AROUND 1050 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 4103 8764 4104 8770 4107 8775 4122 8762
      4117 8753 4107 8753
TIME...MOT...LOC 0345Z 222DEG 32KT 4109 8767 

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

$$

BMD
333 
WWUS53 KLOT 160358
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1058 PM CDT TUE MAR 15 2016

ILC091-160408-
/O.EXP.KLOT.TO.W.0004.000000T0000Z-160316T0400Z/
KANKAKEE IL-
1058 PM CDT TUE MAR 15 2016

...THE TORNADO WARNING FOR SOUTHEASTERN KANKAKEE COUNTY WILL EXPIRE
AT 1100 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
ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM CDT FOR
NORTHEASTERN ILLINOIS.

LAT...LON 4103 8764 4104 8770 4107 8775 4122 8762
      4117 8753 4107 8753
TIME...MOT...LOC 0356Z 229DEG 36KT 4109 8767 

$$

BMD

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 15, 8:29 PM CDTSevere Thunderstorm WarningLOTLaSalle, Livingston46 min
Mar 15, 8:37 PM CDTTornado WarningLOTLee38 min
Mar 15, 9:13 PM CDTSevere Thunderstorm WarningLOTGrundy, LaSalle, Livingston47 min
Mar 15, 9:21 PM CDTSevere Thunderstorm WarningLOTFord, Iroquois, Livingston39 min
Mar 15, 9:24 PM CDTSevere Thunderstorm WarningLOTLaSalle36 min
Mar 15, 9:28 PM CDTSevere Thunderstorm WarningLOTDeKalb, Lee, Ogle32 min
Mar 15, 9:52 PM CDTSevere Thunderstorm WarningLOTFord, Iroquois, Kankakee38 min
Mar 15, 9:54 PM CDTSevere Thunderstorm WarningLOTGrundy, Kendall, LaSalle, Will36 min
Mar 15, 10:22 PM CDTTornado WarningLOTIroquois, Kankakee23 min
Mar 15, 10:58 PM CDTSevere Thunderstorm WarningLOTKankakee, Will34 min
Mar 16, 3:10 AM CDTStorm WarningLOT8 hr
Mar 16, 3:58 AM CDTHigh Wind WarningLOTBoone, DeKalb, DuPage, Kane, Lake, Lee and 3 more7 hr
Mar 16, 9:37 AM CDTGale WarningLOT10 hr
Mar 16, 11:00 AM CDTGale WarningLOT9 hr

Nearby

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