Alert archive / Indiana / Tornado Warnings in 2000

Tornado Warning 7, NWS Chicago, IL

May 12, 2000Jasper County, Newton County, Indiana; Iroquois County, Illinois

NWS Chicago, IL issued this tornado warning at May 12, 2000, 5:20 PM CDT for Jasper County, Newton County, Indiana; Iroquois County, Illinois. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 12, 2000, 5:20 PM CDT (22:20 UTC)
Expired: May 12, 2000, 6:00 PM CDT
In force: 40 min
Issued by: NWS Chicago, IL
Area: Whole counties

Counties Iroquois County, IL, Jasper County, IN, Newton County, IN

The radar

The Chicago radar (KLOT), 94 km from the middle of the area, began a volume at 22:12 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 12, 5:30 PM CDT	Hail 1	Morocco, IN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 12, 2:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.3 hours before the alert went out and 129 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: 2035 J/kg
Mixed-layer CIN: -305 J/kg
Mixed-layer LCL: 1023 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 283 m²/s²
0-3 km storm-relative helicity: 282 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KLOT 122231
TORCHI
ILC075-INC073-111-122300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO IL
520 PM CDT FRI MAY 12 2000

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* TORNADO WARNING FOR...
  IROQUOIS COUNTY IN EAST CENTRAL ILLINOIS
  JASPER COUNTY IN NORTHWEST INDIANA
  NEWTON COUNTY IN NORTHWEST INDIANA

* UNTIL 600 PM CDT

* AT 520 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 6 MILES NORTHWEST OF
  MOROCCO...OR ABOUT 13 MILES SOUTHEAST OF MOMENCE...MOVING EAST AT
  45 MPH. A FUNNEL CLOUD HAS BEEN REPORTED WITH THIS STORM, WHICH
  COULD PRODUCE A TORNADO AT ANY TIME. GOLFBALL SIZE HAIL HAS BEEN REPORTED.

* SOME LOCATIONS THREATENED THROUGH 600 PM CDT INCLUDE
  MOROCCO
  DE MOTTE
  WHEATFIELD

THIS IS A DANGEROUS STORM. MOVE INTO YOUR TORNADO SHELTER NOW!

FISHER

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 4:25 PM CDT	Severe Thunderstorm Warning	LOT	Lake, Porter	35 min
May 12, 5:57 PM CDT	Tornado Warning	LOT	Jasper	18 min
May 12, 6:14 PM CDT	Severe Thunderstorm Warning	LOT	Lake, Newton	61 min
May 12, 6:19 PM CDT	Severe Thunderstorm Warning	LOT	Jasper, Porter	26 min
May 12, 3:52 PM CDT	Severe Thunderstorm Warning	LOT	Livingston	23 min
May 12, 4:03 PM CDT	Tornado Warning	LOT	Ford, Livingston	27 min
May 12, 4:15 PM CDT	Tornado Warning	LOT	Iroquois, Kankakee	45 min
May 12, 4:29 PM CDT	Tornado Warning	LOT	Livingston	31 min
May 12, 4:44 PM CDT	Severe Thunderstorm Warning	LOT	DuPage, Grundy, Kendall, Will	46 min
May 12, 4:55 PM CDT	Tornado Warning	LOT	Kankakee	50 min
May 12, 4:58 PM CDT	Tornado Warning	LOT	Iroquois	32 min
May 12, 5:23 PM CDT	Severe Thunderstorm Warning	LOT	Cook	52 min
May 12, 5:25 PM CDT	Severe Thunderstorm Warning	LOT	Livingston	35 min
May 12, 5:52 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Will	23 min

Nearby

Tornado Warnings in Indiana, 2000 Tornado Warnings in Illinois, 2000 Every tornado warning in 2000 Tornadoes in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.