Alert archive / Indiana / Tornado Warnings in 2012

Tornado Warning 24, NWS Indianapolis, IN

September 7, 20124 counties in Indiana

NWS Indianapolis, IN issued this tornado warning at Sep 7, 2012, 7:18 PM EDT for 4 counties in Indiana. It was in force for 42 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, 7:18 PM EDT (23:18 UTC)
Expired
Sep 7, 2012, 8:00 PM EDT
In force
42 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon

Counties Boone County, IN, Clinton County, IN, Montgomery County, IN, Tippecanoe County, IN

The radar

The Indianapolis radar (KIND), 60 km from the middle of the area, began a volume at 23:18 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

Lincoln, IL (KILX), launched 12:00Z, 11.3 hours before the alert went out and 183 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 2012-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 367 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 2012-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
367 J/kg
Mixed-layer CIN
-412 J/kg
Mixed-layer LCL
1436 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
102 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.

700 
WFUS53 KIND 072318
TORIND
INC011-023-107-157-080000-
/O.NEW.KIND.TO.W.0024.120907T2318Z-120908T0000Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN BOONE COUNTY IN CENTRAL INDIANA...
  SOUTHERN CLINTON COUNTY IN CENTRAL INDIANA...
  NORTHEASTERN MONTGOMERY COUNTY IN WEST CENTRAL INDIANA...
  SOUTHEASTERN TIPPECANOE COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 800 PM EDT

* AT 713 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 11 MILES NORTHEAST OF CRAWFORDSVILLE...AND MOVING
  EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FRANKFORT...
  COLFAX...
  THORNTOWN...
  KIRKLIN...
  MICHIGANTOWN...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 146 AND 160.

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 4016 8624 4008 8682 4024 8687 4038 8627
      4037 8624
TIME...MOT...LOC 2319Z 258DEG 30KT 4018 8671

$$

KOCH
3 follow-up statements
413 
WWUS53 KIND 072336
SVSIND

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

INC107-157-072346-
/O.CAN.KIND.TO.W.0024.000000T0000Z-120908T0000Z/
MONTGOMERY-TIPPECANOE-
736 PM EDT FRI SEP 7 2012

...THE TORNADO WARNING FOR NORTHEASTERN MONTGOMERY AND SOUTHEASTERN
TIPPECANOE COUNTIES IS CANCELLED...

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

LAT...LON 4037 8624 4016 8624 4010 8665 4023 8667
      4038 8628
TIME...MOT...LOC 2336Z 258DEG 30KT 4014 8655

$$

INC011-023-080000-
/O.CON.KIND.TO.W.0024.000000T0000Z-120908T0000Z/
BOONE-CLINTON-
736 PM EDT FRI SEP 7 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN CLINTON AND
NORTHERN BOONE COUNTIES UNTIL 800 PM EDT...

AT 732 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 8 MILES NORTHWEST OF LEBANON...OR 11 MILES
SOUTHWEST OF FRANKFORT...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  FRANKFORT...KIRKLIN AND MICHIGANTOWN.

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 4037 8624 4016 8624 4010 8665 4023 8667
      4038 8628
TIME...MOT...LOC 2336Z 258DEG 30KT 4014 8655

$$

KOCH
246 
WWUS53 KIND 072342
SVSIND

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

INC011-023-080000-
/O.CON.KIND.TO.W.0024.000000T0000Z-120908T0000Z/
BOONE-CLINTON-
742 PM EDT FRI SEP 7 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN CLINTON AND
NORTHEASTERN BOONE COUNTIES UNTIL 800 PM EDT...

AT 741 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 7 MILES NORTH OF LEBANON...OR 9 MILES SOUTH OF
FRANKFORT...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  KIRKLIN.

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 4028 8625 4016 8624 4012 8654 4020 8656
      4027 8630
TIME...MOT...LOC 2343Z 258DEG 30KT 4015 8647

$$

KOCH
824 
WWUS53 KIND 072355
SVSIND

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

INC011-023-080005-
/O.EXP.KIND.TO.W.0024.000000T0000Z-120908T0000Z/
BOONE-CLINTON-
755 PM EDT FRI SEP 7 2012

...THE TORNADO WARNING FOR SOUTHEASTERN CLINTON AND NORTHEASTERN
BOONE COUNTIES WILL EXPIRE AT 800 PM EDT/700 PM CDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 4028 8625 4016 8624 4012 8654 4020 8656
      4027 8630
TIME...MOT...LOC 2355Z 258DEG 30KT 4017 8634

$$

KOCH

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 11:42 AM EDTSpecial Weather StatementINDHoward48 min
Sep 7, 12:06 PM EDTSpecial Weather StatementINDTipton39 min
Sep 7, 12:22 PM EDTSevere Thunderstorm WarningINDDelaware, Howard, Madison, Tipton38 min
Sep 7, 12:52 PM EDTSevere Thunderstorm WarningINDDelaware, Hamilton, Henry, Madison53 min
Sep 7, 1:12 PM EDTSevere Thunderstorm WarningINDDelaware, Henry, Madison, Randolph48 min
Sep 7, 1:38 PM EDTSevere Thunderstorm WarningINDHancock, Henry, Madison52 min
Sep 7, 3:49 PM EDTSevere Thunderstorm WarningINDFountain, Parke, Vermillion41 min
Sep 7, 4:48 PM EDTSevere Thunderstorm WarningINDParke, Putnam24 min
Sep 7, 7:40 PM EDTSevere Thunderstorm WarningINDClay, Sullivan, Vigo35 min
Sep 7, 7:59 PM EDTTornado WarningINDHendricks, Montgomery, Putnam46 min

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.