Alert archive / Indiana / Tornado Warnings in 2012

Tornado Warning 7, NWS Northern Indiana

August 9, 2012White County, Indiana

NWS Northern Indiana issued this tornado warning at Aug 9, 2012, 8:36 PM EDT for White County, Indiana. It was in force for 39 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 9, 2012, 8:36 PM EDT (00:36 UTC)
Expired
Aug 9, 2012, 9:15 PM EDT
In force
39 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon

County White County, IN

The radar

The Indianapolis radar (KIND), 118 km from the middle of the area, began a volume at 00:37 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 9, 5:02 PM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.6 hours before the alert went out and 152 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 00:00Z on 2012-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 680 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 00:00Z on 2012-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939587897Sfc1 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
680 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1397 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

097 
WFUS53 KIWX 100036
TORIWX
INC181-100115-
/O.NEW.KIWX.TO.W.0007.120810T0036Z-120810T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
836 PM EDT THU AUG 9 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN WHITE COUNTY IN NORTHWEST INDIANA...

* UNTIL 915 PM EDT/815 PM CDT/

* AT 834 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 3 MILES SOUTHEAST OF
  REMINGTON...OR 15 MILES SOUTH OF RENSSELAER...AND MOVING           
  SOUTHEAST   AT 30 MPH. 

* LOCATIONS IN THE PATH OF THIS SEVERE STORM INCLUDE...
  BROOKSTON...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE BADGER
GROVE AND CHALMERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE STORM HAS A HISTORY OF PRODUCING TORNADOES. IF YOU ARE 
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY!

TO REPORT SEVERE WEATHER...POST YOUR INFORMATION ON THE NATIONAL
WEATHER SERVICE NORTHERN INDIANA FACEBOOK PAGE...OR YOU CAN POST ON
TWITTER WITH THE HANDLE... @ N W S I W X. REPORTS CAN ALSO BE MADE TO
THE NATIONAL PUBLIC OBSERVATION REPORTING HOTLINE TOLL FREE AT
877-633-6772.

&&

LAT...LON 4066 8677 4058 8677 4057 8678 4057 8706
      4063 8711 4075 8711 4076 8710
TIME...MOT...LOC 0035Z 306DEG 25KT 4072 8711

$$
3 follow-up statements
644 
WWUS53 KIWX 100046
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
846 PM EDT THU AUG 9 2012

INC181-100115-
/O.CON.KIWX.TO.W.0007.000000T0000Z-120810T0115Z/
WHITE IN-
846 PM EDT THU AUG 9 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM EDT/815 PM CDT/
FOR SOUTHWESTERN WHITE COUNTY...

AT 842 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION LOCATED 11 MILES 
NORTHWEST OF BROOKSTON...OR ABOUT 15 MILES WEST OF MONTICELLO...AND 
MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  BROOKSTON...BADGER GROVE AND CHALMERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE STORM HAS A HISTORY OF PRODUCING TORNADOES. IF YOU ARE 
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY!

TO REPORT SEVERE WEATHER...POST YOUR INFORMATION ON THE NATIONAL
WEATHER SERVICE NORTHERN INDIANA FACEBOOK PAGE...OR YOU CAN POST ON
TWITTER WITH THE HANDLE... @ N W S I W X. REPORTS CAN ALSO BE MADE TO
THE NATIONAL PUBLIC OBSERVATION REPORTING HOTLINE TOLL FREE AT
877-633-6772.

&&

LAT...LON 4066 8677 4058 8677 4057 8678 4057 8706
      4063 8711 4075 8711 4076 8710
TIME...MOT...LOC 0045Z 305DEG 27KT 4067 8702

$$
006 
WWUS53 KIWX 100100
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
900 PM EDT THU AUG 9 2012

INC181-100115-
/O.CON.KIWX.TO.W.0007.000000T0000Z-120810T0115Z/
WHITE IN-
900 PM EDT THU AUG 9 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR SOUTH
CENTRAL WHITE COUNTY...

AT 855 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION LOCATED 4 MILES 
WEST OF BROOKSTON...OR ABOUT 13 MILES SOUTHWEST OF MONTICELLO...AND 
MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  BROOKSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE STORM HAS A HISTORY OF PRODUCING TORNADOES. IF YOU ARE 
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY!

TO REPORT SEVERE WEATHER...POST YOUR INFORMATION ON THE NATIONAL
WEATHER SERVICE NORTHERN INDIANA FACEBOOK PAGE...OR YOU CAN POST ON
TWITTER WITH THE HANDLE... @ N W S I W X. REPORTS CAN ALSO BE MADE TO
THE NATIONAL PUBLIC OBSERVATION REPORTING HOTLINE TOLL FREE AT
877-633-6772.

&&

LAT...LON 4057 8699 4067 8705 4072 8695 4064 8678
      4058 8677 4057 8678
TIME...MOT...LOC 0100Z 305DEG 27KT 4060 8690

$$
324 
WWUS53 KIWX 100116
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
916 PM EDT THU AUG 9 2012

INC181-100123-
/O.EXP.KIWX.TO.W.0007.000000T0000Z-120810T0115Z/
WHITE IN-
916 PM EDT THU AUG 9 2012

...THE TORNADO WARNING FOR SOUTH CENTRAL WHITE COUNTY WILL EXPIRE AT
915 PM EDT...

AT 912 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE STORM WHICH PROMPTED THE WARNING HAD MOVED OUT OF THE AREA. 
THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...POST YOUR INFORMATION ON THE NATIONAL
WEATHER SERVICE NORTHERN INDIANA FACEBOOK PAGE...OR YOU CAN POST ON
TWITTER WITH THE HANDLE... @ N W S I W X. REPORTS CAN ALSO BE MADE TO
THE NATIONAL PUBLIC OBSERVATION REPORTING HOTLINE TOLL FREE AT
877-633-6772.

&&

LAT...LON 4057 8699 4067 8705 4072 8695 4064 8678
      4058 8677 4057 8678
TIME...MOT...LOC 0113Z 305DEG 27KT 4054 8680

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 8:25 PM EDTSevere Thunderstorm WarningIWXWhite50 min
Aug 9, 8:31 PM EDTSpecial Weather StatementIWXWhitley29 min
Aug 9, 8:48 PM EDTSpecial Weather StatementIWXWabash27 min
Aug 9, 9:05 PM EDTSevere Thunderstorm WarningIWXCass, Miami40 min
Aug 9, 9:11 PM EDTSpecial Weather StatementIWXAllen34 min
Aug 9, 9:23 PM EDTSpecial Weather StatementIWXWabash37 min
Aug 9, 9:29 PM EDTSevere Thunderstorm WarningIWXHuntington, Wabash46 min
Aug 9, 10:29 PM EDTSpecial Weather StatementIWXAdams, Wells46 min
Aug 9, 10:49 PM EDTSevere Thunderstorm WarningIWXAdams, Jay, Wells23 min
Aug 10, 4:35 AM EDTGale WarningIWX17 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.