Alert archive / Indiana / Tornado Warnings in 2000

Tornado Warning 1, NWS Indianapolis, IN

April 20, 2000Tippecanoe County, Indiana

NWS Indianapolis, IN issued this tornado warning at Apr 20, 2000, 11:18 AM EST for Tippecanoe County, Indiana. It was in force for 27 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: Apr 20, 2000, 11:18 AM EST (16:18 UTC)
Expired: Apr 20, 2000, 11:45 AM EST
In force: 27 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

County Tippecanoe County, IN

The radar

The Indianapolis radar (KIND), 92 km from the middle of the area, began a volume at 16:19 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
Apr 20, 11:20 AM EST	Hail 1	Lafayette, 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
Apr 20, 10:00 AM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.3 hours before the alert went out and 147 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: 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 201619
TORIND
INC157-201645-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1118 AM EST THU APR 20 2000

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  TIPPECANOE COUNTY IN WEST CENTRAL INDIANA

* UNTIL 1145 AM EST

* AT 1116 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 11 MILES SOUTHEAST OF OTTERBEIN...OR ABOUT 7 MILES
  SOUTHWEST OF LAFAYETTE...MOVING NORTHEAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  LAFFAYATTE AT 1135 AM EST

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 YOUR HANDS.

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 20, 6:58 AM EST	Severe Thunderstorm Warning	IND	Madison	32 min
Apr 20, 10:45 AM EST	Severe Thunderstorm Warning	IND	Warren	30 min
Apr 20, 10:59 AM EST	Severe Thunderstorm Warning	IND	Tippecanoe	31 min
Apr 20, 11:34 AM EST	Tornado Warning	IND	Carroll	41 min
Apr 20, 12:50 PM EST	Severe Thunderstorm Warning	IND	Vigo	25 min
Apr 20, 1:01 PM EST	Severe Thunderstorm Warning	IND	Clay	29 min
Apr 20, 1:23 PM EST	Severe Thunderstorm Warning	IND	Putnam	37 min
Apr 20, 1:31 PM EST	Severe Thunderstorm Warning	IND	Clay	14 min
Apr 20, 1:37 PM EST	Severe Thunderstorm Warning	IND	Owen	38 min
Apr 20, 1:39 PM EST	Severe Thunderstorm Warning	IND	Hendricks	51 min
Apr 20, 2:37 PM EST	Severe Thunderstorm Warning	IND	Monroe, Morgan	38 min
Apr 20, 2:58 PM EST	Severe Thunderstorm Warning	IND	Lawrence	32 min
Apr 20, 3:04 PM EST	Severe Thunderstorm Warning	IND	Johnson	26 min
Apr 20, 3:19 PM EST	Severe Thunderstorm Warning	IND	Shelby	26 min
Apr 20, 3:48 PM EST	Severe Thunderstorm Warning	IND	Decatur, Rush	42 min

Nearby

Tornado Warnings in Indiana, 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.