Alert archive / Indiana / Tornado Warnings in 2007

Tornado Warning 47, NWS Northern Indiana

October 19, 2007Williams County, Ohio; DeKalb County, Steuben County, Indiana

NWS Northern Indiana issued this tornado warning at Oct 19, 2007, 12:03 AM EDT for Williams County, Ohio; DeKalb County, Steuben County, Indiana. It was in force for 12 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 19, 2007, 12:03 AM EDT (04:03 UTC)
Expired
Oct 19, 2007, 12:15 AM EDT
In force
12 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon

Counties DeKalb County, IN, Steuben County, IN, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 78 km from the middle of the area, began a volume at 04:03 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.

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 4.1 hours before the alert went out and 178 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, Detroit, MI at 00:00Z on 2007-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 504 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, Detroit, MI at 00:00Z on 2007-10-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 354 square meters per square second.1939587897117Sfc1 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
504 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1038 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
354 m²/s²
0-3 km storm-relative helicity
339 m²/s²
Significant tornado parameter
1.2
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KIWX 190404
TORIWX
INC033-151-OHC171-190445-
/O.NEW.KIWX.TO.W.0047.071019T0403Z-071019T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1203 AM EDT FRI OCT 19 2007

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN DE KALB COUNTY IN NORTHEAST INDIANA
  SOUTHEASTERN STEUBEN COUNTY IN NORTHEAST INDIANA
  NORTHWESTERN WILLIAMS COUNTY IN NORTHWEST OHIO

* UNTIL 1245 AM EDT

* AT 1159 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS SEVERE STORM WAS
  LOCATED NEAR MOORE...OR ABOUT 4 MILES SOUTHWEST OF BUTLER...AND
  MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE STORM INCLUDE...
  MONTPELIER...
  EDGERTON AND HAMILTON...
  EDON...BUTLER...
  ARTIC AND HAMILTON LAKE...
  BLAKESLEE...ALVARADO AND METZ...
  COLUMBIA...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
DAMAGING WINDS IN EXCESS OF 70 MPH.

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.

LAT...LON 4143 8475 4143 8479 4140 8479 4132 8492
      4141 8507 4170 8476 4165 8439
TIME...MOT...LOC 0403Z 224DEG 42KT 4143 8489

$$

JC
1 follow-up statement
000 
WWUS53 KIWX 190415
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1214 AM EDT FRI OCT 19 2007

INC033-151-OHC171-190424-
/O.CAN.KIWX.TO.W.0047.000000T0000Z-071019T0445Z/
STEUBEN IN-DE KALB IN-WILLIAMS OH-
1214 AM EDT FRI OCT 19 2007

...THE TORNADO WARNING FOR NORTHWESTERN WILLIAMS...EASTERN DE KALB
AND SOUTHEASTERN STEUBEN COUNTIES IS CANCELLED...

AT 1212 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD 
WEAKENED AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED.

LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  MONTPELIER...
  COLUMBIA...
  WEST JEFFERSON AND NETTLE LAKE...
  BRIDGEWATER CENTER...
  KUNKLE...

IF YOU HAVE SEVERE WEATHER TO REPORT...YOU CAN CALL YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4143 8475 4143 8479 4140 8479 4132 8492
      4141 8507 4170 8476 4165 8439
TIME...MOT...LOC 0414Z 224DEG 42KT 4152 8477

$$

JC

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 8:06 PM EDTSevere Thunderstorm WarningIWXLaGrange, Noble, Steuben54 min
Oct 18, 8:09 PM EDTSevere Thunderstorm WarningIWXLaPorte51 min
Oct 18, 8:10 PM EDTTornado WarningIWXNoble, Whitley50 min
Oct 18, 8:18 PM EDTSpecial Marine WarningIWX87 min
Oct 18, 8:23 PM EDTSevere Thunderstorm WarningIWXLaPorte, Starke39 min
Oct 18, 8:50 PM EDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph40 min
Oct 18, 8:58 PM EDTTornado WarningIWXSaint Joseph47 min
Oct 18, 9:09 PM EDTSevere Thunderstorm WarningIWXPulaski, White66 min
Oct 18, 9:42 PM EDTSevere Thunderstorm WarningIWXFulton, Marshall, Starke48 min
Oct 18, 10:13 PM EDTTornado Warning EmergencyIWXElkhart, Kosciusko, Marshall47 min
Oct 18, 10:30 PM EDTTornado WarningIWXMiami, Wabash45 min
Oct 18, 10:41 PM EDTTornado WarningIWXLaGrange34 min
Oct 18, 10:45 PM EDTSevere Thunderstorm WarningIWXElkhart, LaGrange60 min
Oct 18, 10:59 PM EDTTornado WarningIWXHuntington, Whitley28 min
Oct 18, 11:30 PM EDTSevere Thunderstorm WarningIWXAllen, DeKalb, Noble45 min

Nearby

Tornado Warnings in Indiana, 2007Tornado Warnings in Ohio, 2007Every tornado warning in 2007Tornadoes in 2007

Sources

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