Alert archive / Indiana / Tornado Warnings in 2012

Tornado Warning 13, NWS Indianapolis, IN

March 23, 2012Brown County, Indiana

NWS Indianapolis, IN issued this tornado warning at Mar 23, 2012, 7:51 PM EDT for Brown County, Indiana. It was in force for 24 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 23, 2012, 7:51 PM EDT (23:51 UTC)
Expired
Mar 23, 2012, 8:15 PM EDT
In force
24 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon

County Brown County, IN

The radar

The Indianapolis radar (KIND), 54 km from the middle of the area, began a volume at 23:51 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
Mar 23, 7:54 PM EDTHAIL 1Nashville, IN
Mar 23, 7:59 PM EDTHAIL 0.252 N Nashville, IN
Mar 23, 8:00 PM EDTHAIL 0.54 N Nashville, INSTATE ROAD 135 IS COVERED AND SLICK WITH HAIL. EVENT TIME IS ESTIMATED.
Mar 23, 8:00 PM EDTHAIL 1.53 N Nashville, INHAILSTONES FOUND ON GROUND A WHILE AFTER STORM PASSAGE
Mar 23, 8:01 PM EDTFUNNEL CLOUD2 N Nashville, IN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 23, 4:39 PM EDTSevere Thunderstorm WatchSPC4 hr
Mar 23, 6:25 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.9 hours before the alert went out and 215 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 12:00Z on 2012-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 233 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 12:00Z on 2012-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
233 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1093 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

349 
WFUS53 KIND 232351
TORIND
INC013-240015-
/O.NEW.KIND.TO.W.0013.120323T2351Z-120324T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
751 PM EDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL BROWN COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 815 PM EDT

* AT 746 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR NASHVILLE...OR 12 MILES EAST OF
  BLOOMINGTON...AND MOVING NORTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NASHVILLE...
  HELMSBURG...

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 3930 8632 3924 8618 3913 8628 3916 8635
TIME...MOT...LOC 2351Z 209DEG 15KT 3919 8628

$$

PUMA
1 follow-up statement
049 
WWUS53 KIND 232358
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
758 PM EDT FRI MAR 23 2012

INC013-240015-
/O.CON.KIND.TO.W.0013.000000T0000Z-120324T0015Z/
BROWN-
758 PM EDT FRI MAR 23 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL BROWN COUNTY UNTIL
815 PM EDT...

AT 756 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR NASHVILLE...OR 14 MILES EAST OF BLOOMINGTON...
MOVING NORTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  HELMSBURG.

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 3930 8632 3924 8618 3913 8628 3916 8635
TIME...MOT...LOC 2358Z 209DEG 15KT 3922 8626

$$

KOCH

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 4:04 PM EDTSpecial Weather StatementINDKnox, Sullivan26 min
Mar 23, 4:10 PM EDTSevere Thunderstorm WarningINDSullivan, Vigo35 min
Mar 23, 4:14 PM EDTSevere Thunderstorm WarningINDGreene, Knox, Sullivan31 min
Mar 23, 4:38 PM EDTSevere Thunderstorm WarningINDDaviess, Knox37 min
Mar 23, 4:43 PM EDTSevere Thunderstorm WarningINDClay, Greene, Owen, Parke, Sullivan, Vermillion and 1 more47 min
Mar 23, 5:12 PM EDTSevere Thunderstorm WarningINDDaviess, Greene, Martin33 min
Mar 23, 5:17 PM EDTSevere Thunderstorm WarningINDClay, Owen, Parke, Putnam28 min
Mar 23, 5:24 PM EDTTornado WarningINDDaviess, Greene, Martin21 min
Mar 23, 5:29 PM EDTSevere Thunderstorm WarningINDFountain, Montgomery, Parke46 min
Mar 23, 5:41 PM EDTSevere Thunderstorm WarningINDDaviess, Greene, Lawrence, Martin, Monroe, Owen34 min
Mar 23, 5:54 PM EDTTornado WarningINDGreene, Lawrence, Monroe21 min
Mar 23, 6:12 PM EDTTornado WarningINDGreene, Monroe33 min
Mar 23, 6:42 PM EDTTornado WarningINDBrown, Monroe, Morgan33 min
Mar 23, 6:46 PM EDTSevere Thunderstorm WarningINDBoone, Hendricks, Marion44 min
Mar 23, 7:14 PM EDTSpecial Weather StatementINDMorgan61 min
Mar 23, 7:30 PM EDTSpecial Weather StatementINDHendricks45 min
Mar 23, 7:34 PM EDTSevere Thunderstorm WarningINDBrown, Monroe, Morgan41 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.