Alert archive / Indiana / Tornado Warnings in 2001

Tornado Warning 20, NWS Northern Indiana

October 24, 2001LaPorte County, Indiana

NWS Northern Indiana issued this tornado warning at Oct 24, 2001, 3:12 PM CDT for LaPorte County, Indiana. It was in force for 48 min. 3 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
Oct 24, 2001, 3:12 PM CDT (20:12 UTC)
Expired
Oct 24, 2001, 4:00 PM CDT
In force
48 min
Issued by
NWS Northern Indiana
Area
Whole counties; the outline is the Mesonet’s reconstruction

County LaPorte County, IN

The radar

The Northern Indiana radar (KIWX), 97 km from the middle of the area, began a volume at 20:15 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
Oct 24, 3:15 PM CDTTornado F2Wanatah, IN
Oct 24, 3:20 PM CDTHail 0.75La Porte, IN
Oct 24, 3:45 PM CDTThunderstorm WindStillwell, INLaw enforcement reported roof damage to home and power lines down near Stillwell.

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
Oct 24, 11:45 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.2 hours before the alert went out and 208 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 2001-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1102 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2001-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 square meters per square second.1939587897Sfc1 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
1102 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
226 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

757 
WFUS53 KIWX 242012
TORFWA
INC091-242100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
312 PM CDT WED OCT 24 2001

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  LA PORTE COUNTY IN INDIANA

* UNTIL 400 PM CDT

* AT 312 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  A POSSIBLE TORNADO 5 MILES SOUTHWEST OF WANATAH...MOVING NORTHEAST
  AT 35 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  WESTVILLE
  KINGSFORD HEIGHTS
  KINGSBURY
  LA PORTE

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM ON THE
LOWEST FLOOR AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN NORTHERN INDIANA.

LAT...LON 4139 8711 4126 8694 4158 8644 4176 8668

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 24, 2:50 PM CDTSevere Thunderstorm WarningIWXLaPorte40 min
Oct 24, 3:06 PM CDTSevere Thunderstorm WarningIWXPulaski, Starke, White24 min
Oct 24, 3:27 PM CDTSevere Thunderstorm WarningIWXPulaski, Starke, White18 min
Oct 24, 3:41 PM CDTSevere Thunderstorm WarningIWXCass, Fulton49 min
Oct 24, 3:41 PM CDTSevere Thunderstorm WarningIWXMarshall49 min
Oct 24, 3:46 PM CDTTornado WarningIWXSaint Joseph59 min
Oct 24, 4:06 PM CDTSevere Thunderstorm WarningIWXMiami, Wabash54 min
Oct 24, 4:06 PM CDTSevere Thunderstorm WarningIWXElkhart, Kosciusko54 min
Oct 24, 4:18 PM CDTTornado WarningIWXKosciusko62 min
Oct 24, 4:27 PM CDTSevere Thunderstorm WarningIWXGrant, Huntington, Whitley63 min
Oct 24, 4:27 PM CDTSevere Thunderstorm WarningIWXLaGrange, Noble63 min
Oct 24, 4:45 PM CDTTornado WarningIWXNoble45 min
Oct 24, 4:59 PM CDTSevere Thunderstorm WarningIWXAllen, DeKalb51 min
Oct 24, 5:04 PM CDTTornado WarningIWXDeKalb, Steuben46 min
Oct 24, 5:10 PM CDTTornado WarningIWXBlackford, Jay, Wells50 min
Oct 24, 5:10 PM CDTTornado WarningIWXAdams50 min

Nearby

Tornado Warnings in Indiana, 2001Every tornado warning in 2001Tornadoes in 2001

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.