Alert archive / Indiana / Tornado Warnings in 2012

Tornado Warning 26, NWS Indianapolis, IN

September 7, 2012Bartholomew County, Decatur County, Jennings County, Indiana

NWS Indianapolis, IN issued this tornado warning at Sep 7, 2012, 10:48 PM EDT for Bartholomew County, Decatur County, Jennings County, Indiana. It was in force for 13 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
Sep 7, 2012, 10:48 PM EDT (02:48 UTC)
Expired
Sep 7, 2012, 11:01 PM EDT
In force
13 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon

Counties Bartholomew County, IN, Decatur County, IN, Jennings County, IN

The radar

The Indianapolis radar (KIND), 75 km from the middle of the area, began a volume at 02:48 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 7, 4:41 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.8 hours before the alert went out and 163 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, Cncnati-Daytn, OH at 00:00Z on 2012-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 531 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, Cncnati-Daytn, OH at 00:00Z on 2012-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
531 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
1512 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

504 
WFUS53 KIND 080248
TORIND
INC005-031-079-080315-
/O.NEW.KIND.TO.W.0026.120908T0248Z-120908T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1048 PM EDT FRI SEP 7 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL BARTHOLOMEW COUNTY IN CENTRAL INDIANA...
  SOUTHWESTERN DECATUR COUNTY IN CENTRAL INDIANA...
  NORTHERN JENNINGS COUNTY IN SOUTHEAST INDIANA...

* UNTIL 1115 PM EDT

* AT 1043 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 8 MILES SOUTHEAST OF COLUMBUS...AND MOVING EAST
  AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEWBERN...
  GRAMMER...
  SCIPIO...
  HARTSVILLE...
  BURNEY...
  WESTPORT...
  LETTS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3935 8563 3917 8544 3905 8579 3921 8589
TIME...MOT...LOC 0248Z 268DEG 19KT 3914 8577

$$

TDUD
2 follow-up statements
206 
WWUS53 KIND 080257
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1057 PM EDT FRI SEP 7 2012

INC005-031-079-080315-
/O.CON.KIND.TO.W.0026.000000T0000Z-120908T0315Z/
BARTHOLOMEW-DECATUR-JENNINGS-
1057 PM EDT FRI SEP 7 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN DECATUR...
EAST CENTRAL BARTHOLOMEW AND NORTHERN JENNINGS COUNTIES UNTIL 1115 PM
EDT...

AT 1052 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 10 MILES SOUTHEAST OF COLUMBUS...MOVING EAST AT 20
MPH.

LOCATIONS IMPACTED INCLUDE...
  HARTSVILLE...BURNEY...WESTPORT AND LETTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3935 8563 3917 8544 3905 8579 3921 8589
TIME...MOT...LOC 0257Z 268DEG 19KT 3914 8571

$$

TDUD
881 
WWUS53 KIND 080301
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1101 PM EDT FRI SEP 7 2012

INC005-031-079-080311-
/O.CAN.KIND.TO.W.0026.000000T0000Z-120908T0315Z/
BARTHOLOMEW-DECATUR-JENNINGS-
1101 PM EDT FRI SEP 7 2012

...THE TORNADO WARNING FOR SOUTHWESTERN DECATUR...EAST CENTRAL
BARTHOLOMEW AND NORTHERN JENNINGS COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3935 8563 3917 8544 3905 8579 3921 8589
TIME...MOT...LOC 0301Z 268DEG 19KT 3914 8568

$$

TDUD

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 8:26 PM EDTSevere Thunderstorm WarningINDClay, Greene, Knox, Sullivan, Vigo49 min
Sep 7, 8:41 PM EDTSevere Thunderstorm WarningINDBoone, Hamilton, Marion49 min
Sep 7, 9:17 PM EDTAreal Flood AdvisoryINDBoone, Hamilton, Hancock, Johnson, Marion, Morgan3 hr
Sep 7, 9:45 PM EDTSevere Thunderstorm WarningINDDecatur, Johnson, Rush, Shelby45 min
Sep 7, 10:32 PM EDTAreal Flood AdvisoryINDDaviess, Knox, Lawrence, Martin3 hr
Sep 7, 10:39 PM EDTAreal Flood AdvisoryINDShelby3 hr
Sep 7, 11:04 PM EDTSevere Thunderstorm WarningINDJackson, Jennings41 min
Sep 8, 12:29 AM EDTAreal Flood AdvisoryINDMarion3 hr
Sep 8, 3:36 AM EDTAreal Flood AdvisoryINDMarion, Morgan4 hr
Sep 8, 7:08 AM EDTAreal Flood AdvisoryINDMarion, Morgan4 hr

Nearby

Tornado Warnings in Indiana, 2012Every tornado warning in 2012Tornadoes in 2012

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.