Alert archive / Indiana / Tornado Warnings in 2011

Tornado Warning 82, NWS Indianapolis, IN

August 3, 2011Hamilton County, Madison County, Tipton County, Indiana

NWS Indianapolis, IN issued this tornado warning at Aug 3, 2011, 5:12 AM EDT for Hamilton County, Madison County, Tipton County, Indiana. It was in force for 18 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
Aug 3, 2011, 5:12 AM EDT (09:12 UTC)
Expired
Aug 3, 2011, 5:30 AM EDT
In force
18 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon

Counties Hamilton County, IN, Madison County, IN, Tipton County, IN

The radar

The Indianapolis radar (KIND), 69 km from the middle of the area, began a volume at 09:12 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
Aug 3, 1:48 AM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 9.2 hours before the alert went out and 196 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 2011-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 856 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 2011-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.193958Sfc1 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
856 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
1530 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.2
Supercell composite
5.4

Open this sounding in Storm Lab

The text

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

619 
WFUS53 KIND 030912
TORIND
INC057-095-159-030930-
/O.NEW.KIND.TO.W.0082.110803T0912Z-110803T0930Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
512 AM EDT WED AUG 3 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HAMILTON COUNTY IN CENTRAL INDIANA...
  WEST CENTRAL MADISON COUNTY IN CENTRAL INDIANA...
  SOUTHEASTERN TIPTON COUNTY IN CENTRAL INDIANA...

* UNTIL 530 AM EDT

* AT 508 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR ELWOOD...OR 17 MILES NORTHWEST OF
  ANDERSON...AND MOVING SOUTHEAST AT 25 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  FRANKTON AROUND 525 AM EDT...

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 4018 8567 4018 8599 4030 8603 4031 8589
TIME...MOT...LOC 0912Z 312DEG 22KT 4026 8589

$$

PUMA
2 follow-up statements
942 
WWUS53 KIND 030920
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
520 AM EDT WED AUG 3 2011

INC057-095-159-030930-
/O.CON.KIND.TO.W.0082.000000T0000Z-110803T0930Z/
HAMILTON-MADISON-TIPTON-
520 AM EDT WED AUG 3 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN HAMILTON...
WEST CENTRAL MADISON AND SOUTHEASTERN TIPTON COUNTIES UNTIL 530 AM
EDT...

AT 517 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 6 MILES SOUTH OF ELWOOD...OR 10 MILES NORTHWEST OF
ANDERSON...MOVING SOUTHEAST AT 50 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
HAMILTON...SOUTHEASTERN TIPTON AND WEST CENTRAL MADISON COUNTIES.

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 4018 8567 4018 8599 4030 8603 4031 8589
TIME...MOT...LOC 0920Z 311DEG 43KT 4017 8579

$$

PUMA
602 
WWUS53 KIND 030929
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
529 AM EDT WED AUG 3 2011

INC057-095-159-030939-
/O.EXP.KIND.TO.W.0082.000000T0000Z-110803T0930Z/
HAMILTON-MADISON-TIPTON-
529 AM EDT WED AUG 3 2011

...THE TORNADO WARNING FOR NORTHEASTERN HAMILTON...WEST CENTRAL
MADISON AND SOUTHEASTERN TIPTON COUNTIES WILL EXPIRE AT 530 AM
EDT/430 AM 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 4018 8567 4018 8599 4030 8603 4031 8589
TIME...MOT...LOC 0929Z 311DEG 43KT 4010 8568

$$

PUMA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 1:09 AM EDTSpecial Weather StatementINDCarroll51 min
Aug 3, 1:28 AM EDTSevere Thunderstorm WarningINDCarroll, Clinton, Tippecanoe62 min
Aug 3, 1:52 AM EDTSevere Thunderstorm WarningINDCarroll, Howard, Tipton53 min
Aug 3, 2:13 AM EDTSevere Thunderstorm WarningINDBoone, Hamilton62 min
Aug 3, 4:29 AM EDTSevere Thunderstorm WarningINDHoward, Tipton46 min
Aug 3, 5:31 AM EDTSevere Thunderstorm WarningINDDelaware, Hamilton, Madison, Tipton44 min
Aug 3, 7:44 AM EDTSpecial Weather StatementINDDecatur, Jennings46 min

Nearby

Tornado Warnings in Indiana, 2011Every tornado warning in 2011Tornadoes in 2011

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.