Alert archive / Indiana / Tornado Warnings in 2011

Tornado Warning 26, NWS Northern Indiana

August 8, 2011Cass County, Miami County, Indiana

NWS Northern Indiana issued this tornado warning at Aug 8, 2011, 7:59 PM EDT for Cass County, Miami County, Indiana. It was in force for 46 min. 4 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: Aug 8, 2011, 7:59 PM EDT (23:59 UTC)
Expired: Aug 8, 2011, 8:45 PM EDT
In force: 46 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon

Counties Cass County, IN, Miami County, IN

The radar

The Northern Indiana radar (KIWX), 93 km from the middle of the area, began a volume at 00:00 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

Time	Report	Where	Remark
Aug 8, 8:03 PM EDT	TSTM WND GST 60	1 N Lake Cicott, IN	PEA SIZED HAIL ALSO REPORTED. VISIBILITY NEAR ZERO.
Aug 8, 8:15 PM EDT	TSTM WND DMG	1 W Logansport, IN	SEVERAL TREES AND POWER LINES DOWN ON THE WEST AND SOUTH SIDES OF LOGANSPORT. US 24 IS CLOSED DUE TO DOWNED TREES ON ROADWAY. TIME ESTIMATED FROM RADAR.
Aug 8, 8:50 PM EDT	TSTM WND GST 54	2 W Bunker Hill, IN
Aug 8, 8:52 PM EDT	TSTM WND GST 50	2 Nw Miami, IN	AT INTERSECTION OF US31 AND 900 S...PEA SIZED HAIL ALSO REPORTED

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

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 12.0 hours before the alert went out and 199 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1544 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 796 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

761 
WFUS53 KIWX 082359
TORIWX
INC017-103-090045-
/O.NEW.KIWX.TO.W.0026.110808T2359Z-110809T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
759 PM EDT MON AUG 8 2011

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CASS COUNTY IN NORTH CENTRAL INDIANA...
  SOUTHWESTERN MIAMI COUNTY IN NORTH CENTRAL INDIANA...

* UNTIL 845 PM EDT

* AT 756 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 6 MILES WEST OF
  LOGANSPORT...AND MOVING EAST AT 25 MPH.

* LOCATIONS IN THE PATH OF THIS SEVERE STORM INCLUDE...
  LOGANSPORT...
  WALTON...
  GRISSOM AFB...
  BUNKER HILL AND PERU...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE ANOKA...
ADAMSBORO...NEW WAVERLY...ONWARD...LINCOLN...NEAD...WELLS...MIAMI AND
BENNETTS SWITCH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH AND PING PONG BALL SIZED HAIL.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4066 8639 4070 8639 4070 8650 4071 8653
      4074 8653 4074 8655 4082 8650 4075 8603
      4057 8607 4057 8613
TIME...MOT...LOC 2359Z 287DEG 23KT 4074 8644

$$

4 follow-up statements

562 
WWUS53 KIWX 090013
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
813 PM EDT MON AUG 8 2011

INC017-103-090045-
/O.CON.KIWX.TO.W.0026.000000T0000Z-110809T0045Z/
MIAMI IN-CASS IN-
813 PM EDT MON AUG 8 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR SOUTHERN
CASS AND SOUTHWESTERN MIAMI COUNTIES IN NORTH CENTRAL INDIANA...

AT 808 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS SEVERE 
STORM WAS LOCATED 2 MILES SOUTHWEST OF LOGANSPORT...AND MOVING 
SOUTHEAST AT 25 MPH. IN ADDITION...THIS THUNDERSTORM IS CAPABLE OF 
PRODUCING WIND GUSTS IN EXCESS OF 70 MPH AND GOLF BALL SIZED HAIL.

LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  WALTON...
  GRISSOM AFB...
  BUNKER HILL AND PERU...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE ANOKA...
NEW WAVERLY...ONWARD...LINCOLN...NEAD...WELLS...MIAMI AND BENNETTS
SWITCH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

&&

LAT...LON 4066 8639 4070 8639 4071 8650 4073 8651
      4074 8651 4076 8650 4080 8648 4075 8603
      4057 8607 4057 8613
TIME...MOT...LOC 0012Z 293DEG 22KT 4073 8638

$$

850 
WWUS53 KIWX 090024
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
824 PM EDT MON AUG 8 2011

INC017-103-090045-
/O.CON.KIWX.TO.W.0026.000000T0000Z-110809T0045Z/
MIAMI IN-CASS IN-
824 PM EDT MON AUG 8 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR
SOUTHEASTERN CASS AND SOUTHWESTERN MIAMI COUNTIES IN NORTH CENTRAL
INDIANA...

AT 821 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS SEVERE 
STORM WAS LOCATED 4 MILES SOUTHEAST OF LOGANSPORT...AND MOVING EAST 
AT 25 MPH. IN ADDITION...THIS THUNDERSTORM IS CAPABLE OF PRODUCING 
WIND GUSTS IN EXCESS OF 70 MPH AND GOLF BALL SIZED HAIL.

LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  WALTON...
  GRISSOM AFB AND BUNKER HILL...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
ONWARD...LINCOLN...NEAD...WELLS...MIAMI AND BENNETTS SWITCH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

&&

LAT...LON 4066 8639 4070 8639 4071 8641 4073 8641
      4076 8640 4077 8639 4078 8638 4073 8604
      4057 8607 4057 8613
TIME...MOT...LOC 0024Z 292DEG 21KT 4069 8630

$$

254 
WWUS53 KIWX 090035
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
835 PM EDT MON AUG 8 2011

INC017-103-090045-
/O.CON.KIWX.TO.W.0026.000000T0000Z-110809T0045Z/
MIAMI IN-CASS IN-
835 PM EDT MON AUG 8 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR
SOUTHEASTERN CASS AND SOUTHWESTERN MIAMI COUNTIES IN NORTH CENTRAL
INDIANA...

AT 830 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS SEVERE 
STORM WAS LOCATED NEAR WALTON...OR ABOUT 6 MILES WEST OF GRISSOM 
AFB...AND MOVING EAST AT 20 MPH. IN ADDITION...THIS THUNDERSTORM IS 
CAPABLE OF PRODUCING WIND GUSTS IN EXCESS OF 70 MPH AND GOLF BALL 
SIZED HAIL.

LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  GRISSOM AFB AND BUNKER HILL...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
LINCOLN...MIAMI...NEAD AND BENNETTS SWITCH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

&&

LAT...LON 4065 8634 4069 8632 4074 8630 4076 8629
      4077 8628 4073 8604 4057 8607 4057 8613
TIME...MOT...LOC 0035Z 291DEG 16KT 4066 8624

$$

084 
WWUS53 KIWX 090047
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
847 PM EDT MON AUG 8 2011

INC017-103-090056-
/O.EXP.KIWX.TO.W.0026.000000T0000Z-110809T0045Z/
MIAMI IN-CASS IN-
847 PM EDT MON AUG 8 2011

...THE TORNADO WARNING FOR SOUTHEASTERN CASS AND SOUTHWESTERN MIAMI
COUNTIES IN NORTH CENTRAL INDIANA HAS EXPIRED...

AT 842 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE ROTATION WHICH PROMPTED THE TORNADO WARNING HAD WEAKENED. 
THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE. 
HOWEVER...A NEW SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED FOR 
SOUTHEASTERN CASS AND SOUTHERN MIAMI COUNTIES.

LAT...LON 4065 8634 4069 8632 4074 8630 4076 8629
      4077 8628 4073 8604 4057 8607 4057 8613
TIME...MOT...LOC 0035Z 291DEG 16KT 4066 8624

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 8:05 PM EDT	Special Weather Statement	IWX	Starke	40 min
Aug 7, 8:15 PM EDT	Special Weather Statement	IWX	Saint Joseph	30 min
Aug 7, 8:26 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Saint Joseph	34 min
Aug 7, 8:52 PM EDT	Rip Current Statement	IWX		5 hr
Aug 7, 9:02 PM EDT	Special Weather Statement	IWX	Elkhart	43 min
Aug 7, 9:10 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, Noble	35 min
Aug 7, 9:39 PM EDT	Special Weather Statement	IWX	Whitley	51 min
Aug 8, 5:12 AM EDT	Rip Current Statement	IWX		16 hr
Aug 8, 6:51 PM EDT	Special Weather Statement	IWX	White	39 min
Aug 8, 7:04 PM EDT	Severe Thunderstorm Warning	IWX	White	41 min
Aug 8, 7:15 PM EDT	Tornado Warning	IWX	Cass, White	45 min

Nearby

Tornado Warnings in Indiana, 2011 Every tornado warning in 2011 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.