Alert archive / Illinois / Tornado Warnings in 2016

Tornado Warning 3, NWS Chicago, IL

March 15, 2016Iroquois County, Kankakee County, Illinois

NWS Chicago, IL issued this tornado warning at Mar 15, 2016, 10:22 PM CDT for Iroquois County, Kankakee County, Illinois. It was in force for 23 min. 3 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, 10:22 PM CDT (03:22 UTC)
Expired: Mar 15, 2016, 10:45 PM CDT
In force: 23 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Iroquois County, IL, Kankakee County, IL

The radar

The Chicago radar (KLOT), 77 km from the middle of the area, began a volume at 03:25 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
Mar 15, 10:22 PM CDT	HAIL 1	Beaverville, IL
Mar 15, 10:37 PM CDT	TSTM WND DMG	1 Nw St. Anne, IL	SILO BLOWN ONTO POWER LINES. POSSIBLE TORNADO DAMAGE. TIME ESTIMATED PER RADAR.
Mar 15, 10:37 PM CDT	TSTM WND DMG	1 Nw St. Anne, IL	SILO 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.

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
Mar 15, 8:40 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.4 hours before the alert went out and 110 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: 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.

471 
WFUS53 KLOT 160322
TORLOT
ILC075-091-160345-
/O.NEW.KLOT.TO.W.0003.160316T0322Z-160316T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1022 PM CDT TUE MAR 15 2016

THE NATIONAL WEATHER SERVICE IN CHICAGO  HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL IROQUOIS COUNTY IN EAST CENTRAL ILLINOIS...
  SOUTH CENTRAL KANKAKEE COUNTY IN NORTHEASTERN ILLINOIS...

* UNTIL 1045 PM CDT
    
* AT 1021 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR CLIFTON...OR 12 MILES NORTHWEST OF
  WATSEKA...MOVING NORTHEAST AT 30 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...
  ST. ANNE AND AROMA PARK AROUND 1045 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
PAPINEAU AND BEAVERVILLE.

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 4087 8787 4091 8794 4108 8780 4096 8762
TIME...MOT...LOC 0321Z 220DEG 26KT 4093 8786 

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

$$

BMD

2 follow-up statements

560 
WWUS53 KLOT 160327
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1027 PM CDT TUE MAR 15 2016

ILC075-091-160345-
/O.CON.KLOT.TO.W.0003.000000T0000Z-160316T0345Z/
IROQUOIS IL-KANKAKEE IL-
1027 PM CDT TUE MAR 15 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR NORTH
CENTRAL IROQUOIS AND SOUTH CENTRAL KANKAKEE COUNTIES...
    
AT 1027 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR ST. ANNE...OR 10 MILES SOUTH OF KANKAKEE...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...
  AROMA PARK AROUND 1035 PM CDT.
  ST. ANNE AROUND 1040 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
PAPINEAU AND BEAVERVILLE.

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 4091 8783 4095 8789 4108 8780 4096 8762
TIME...MOT...LOC 0327Z 222DEG 33KT 4097 8780 

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

$$

BMD

053 
WWUS53 KLOT 160339
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1039 PM CDT TUE MAR 15 2016

ILC075-091-160348-
/O.EXP.KLOT.TO.W.0003.000000T0000Z-160316T0345Z/
IROQUOIS IL-KANKAKEE IL-
1039 PM CDT TUE MAR 15 2016

...THE TORNADO WARNING FOR NORTH CENTRAL IROQUOIS AND SOUTH CENTRAL
KANKAKEE COUNTIES WILL EXPIRE AT 1045 PM CDT...
    
THE TORNADO WARNING THAT WAS PREVIOUSLY IN EFFECT HAS BEEN REISSUED
FOR PORTIONS OF SOUTHEASTERN KANKAKEE COUNTY AND IS IN EFFECT UNTIL
1100 PM CDT. PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE
WEATHER INFORMATION.

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

LAT...LON 4091 8783 4095 8789 4108 8780 4096 8762
TIME...MOT...LOC 0337Z 220DEG 26KT 4097 8780 

$$

BMD

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 8:29 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle, Livingston	46 min
Mar 15, 8:37 PM CDT	Tornado Warning	LOT	Lee	38 min
Mar 15, 9:13 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, LaSalle, Livingston	47 min
Mar 15, 9:21 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Livingston	39 min
Mar 15, 9:24 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle	36 min
Mar 15, 9:28 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Lee, Ogle	32 min
Mar 15, 9:52 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee	38 min
Mar 15, 9:54 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kendall, LaSalle, Will	36 min
Mar 15, 10:34 PM CDT	Tornado Warning	LOT	Kankakee	26 min
Mar 15, 10:58 PM CDT	Severe Thunderstorm Warning	LOT	Kankakee, Will	34 min
Mar 16, 3:10 AM CDT	Storm Warning	LOT		8 hr
Mar 16, 3:58 AM CDT	High Wind Warning	LOT	Boone, DeKalb, DuPage, Kane, Lake, Lee and 3 more	7 hr
Mar 16, 9:37 AM CDT	Gale Warning	LOT		10 hr
Mar 16, 11:00 AM CDT	Gale Warning	LOT		9 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.