Alert archive / Indiana / Tornado Warnings in 2000

Tornado Warning 2, NWS Indianapolis, IN

April 20, 2000Carroll County, Indiana

NWS Indianapolis, IN issued this tornado warning at Apr 20, 2000, 11:34 AM EST for Carroll County, Indiana. It was in force for 41 min. 2 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Apr 20, 2000, 11:34 AM EST (16:34 UTC)
Expired
Apr 20, 2000, 12:15 PM EST
In force
41 min
Issued by
NWS Indianapolis, IN
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Carroll County, IN

The radar

The Northern Indiana radar (KIWX), 97 km from the middle of the area, began a volume at 16:36 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
Apr 20, 11:42 AM ESTHail 1Delphi, IN
Apr 20, 12:14 PM ESTHail 0.75Mexico, 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.

IssuedProductOfficeLasted
Apr 20, 10:00 AM ESTTornado WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.6 hours before the alert went out and 189 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 12:00Z on 2000-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 595 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 12:00Z on 2000-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 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
595 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
873 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KIND 201635
TORIND
INC015-201715-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1134 AM EST THU APR 20 2000

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CARROLL COUNTY IN NORTH CENTRAL INDIANA

* UNTIL 1215 PM EST

* AT 1116 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 7 MILES WEST OF DELPHI...OR ABOUT 11 MILES NORTH OF
  LAFAYETTE...MOVING NORTHEAST AT 40 MPH.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YmOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM EST THURSDAY AFTERNOON
FOR WESTERN INDIANA.

LAT...LON 4068 8678 4052 8666 4076 8605 4095 8619

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 20, 6:58 AM ESTSevere Thunderstorm WarningINDMadison32 min
Apr 20, 10:45 AM ESTSevere Thunderstorm WarningINDWarren30 min
Apr 20, 10:59 AM ESTSevere Thunderstorm WarningINDTippecanoe31 min
Apr 20, 11:18 AM ESTTornado WarningINDTippecanoe27 min
Apr 20, 12:50 PM ESTSevere Thunderstorm WarningINDVigo25 min
Apr 20, 1:01 PM ESTSevere Thunderstorm WarningINDClay29 min
Apr 20, 1:23 PM ESTSevere Thunderstorm WarningINDPutnam37 min
Apr 20, 1:31 PM ESTSevere Thunderstorm WarningINDClay14 min
Apr 20, 1:37 PM ESTSevere Thunderstorm WarningINDOwen38 min
Apr 20, 1:39 PM ESTSevere Thunderstorm WarningINDHendricks51 min
Apr 20, 2:37 PM ESTSevere Thunderstorm WarningINDMonroe, Morgan38 min
Apr 20, 2:58 PM ESTSevere Thunderstorm WarningINDLawrence32 min
Apr 20, 3:04 PM ESTSevere Thunderstorm WarningINDJohnson26 min
Apr 20, 3:19 PM ESTSevere Thunderstorm WarningINDShelby26 min
Apr 20, 3:48 PM ESTSevere Thunderstorm WarningINDDecatur, Rush42 min

Nearby

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