Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 293, NWS Indianapolis, IN

August 13, 20116 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 13, 2011, 8:39 PM EDT for 6 counties in Indiana. It was in force for 66 min. 7 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 13, 2011, 8:39 PM EDT (00:39 UTC)
Expired: Aug 13, 2011, 9:45 PM EDT
In force: 66 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Boone County, IN, Hamilton County, IN, Hendricks County, IN, Marion County, IN, Morgan County, IN, Putnam County, IN

The radar

The Indianapolis radar (KIND), 15 km from the middle of the area, began a volume at 00:39 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 13, 8:45 PM EDT	TSTM WND DMG	7 Wnw Indianapolis, IN	MULTIPLE TREES AND TREE LIMBS REPORTED DOWN IN A SMALL... CONFINED AREA
Aug 13, 8:49 PM EDT	TSTM WND DMG	Indiana State Fairgroun, IN	* 5 FATAL, 45 INJ * STAGE COLLAPSE DURING CONCERT...MANY INJURIES...CORONER ON SCENE...WINDS ESTIMATED BETWEEN 60 AND 70 MPH. MULTIPLE SOURCES USED FOR THIS REPORT. INDIANAPOLIS POLICE CHIEF PROVIDED TIME. FATALITY AND INJURY NUMBERS UPDATED AS NEW INFORMA
Aug 13, 8:49 PM EDT	TSTM WND DMG	Speedway, IN	A LARGE 100-YEAR OLD TREE WAS BLOWN DOWN AND POWER KNOCKED OUT FROM A MEASURED 70 MPH WIND GUST. REPORTED BY LONG-TIME TELEVISION WEATHER SPOTTER.
Aug 13, 8:49 PM EDT	TSTM WND GST 70	Speedway, IN	REPORTED BY LONG-TIME TELEVISION WEATHER SPOTTER. A LARGE 100-YEAR OLD TREE WAS BLOWN DOWN. POWER IS OUT IN NEIGHBORHOOD.
Aug 13, 8:50 PM EDT	TSTM WND DMG	Indiana State Fairgroun, IN	STAGE BLEW INTO GRANDSTAND
Aug 13, 8:50 PM EDT	TSTM WND GST 77	Plainfield, IN	LOCATED AT US 40 AND CENTER STREET
Aug 13, 8:55 PM EDT	TSTM WND DMG	Indiana State Fairgroun, IN	* 4 FATAL * STAGE COLLAPSE DURING CONCERT...MULTIPLE INJURIES...CORONER ON SCENE...WINDS ESTIMATED BETWEEN 60 AND 70 MPH. MULTIPLE SOURCES USED FOR THIS REPORT. INDIANAPOLIS POLICE CHIEF PROVIDED TIME.

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.

Issued	Product	Office	Lasted
Aug 13, 5:57 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.7 hours before the alert went out and 208 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: 1063 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1455 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

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

744 
WUUS53 KIND 140039
SVRIND
INC011-057-063-097-109-133-140145-
/O.NEW.KIND.SV.W.0293.110814T0039Z-110814T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
839 PM EDT SAT AUG 13 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BOONE COUNTY IN CENTRAL INDIANA...
  HAMILTON COUNTY IN CENTRAL INDIANA...
  HENDRICKS COUNTY IN CENTRAL INDIANA...
  MARION COUNTY IN CENTRAL INDIANA...
  NORTHERN MORGAN COUNTY IN CENTRAL INDIANA...
  EAST CENTRAL PUTNAM COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 945 PM EDT

* AT 835 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 9 MILES NORTH OF ZIONSVILLE TO
  GREENCASTLE...AND MOVING EAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  SHERIDAN...PITTSBORO AND COATESVILLE AROUND 845 PM EDT...
  DANVILLE AND AMO AROUND 850 PM EDT...
  BELLE UNION...ZIONSVILLE...STILESVILLE AND BROWNSBURG AROUND 855 PM
  EDT...
  LITTLE POINT...EMINENCE...WESTFIELD AND CLAYTON AROUND 900 PM
  EDT...
  MORSE RESERVOIR AND EAGLE CREEK RESERVOIR AROUND 905 PM EDT...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 102 AND 137.

THIS INCLUDES INTERSTATE 69 BETWEEN MILE MARKERS 0 AND 10.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 36 AND 93.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 57 AND 99.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4015 8587 3987 8595 3965 8597 3963 8625
      3945 8625 3952 8694 4015 8631
TIME...MOT...LOC 0038Z 264DEG 23KT 4008 8628 3958 8683
WIND...HAIL 60MPH 1.00IN

$$

PUMA

4 follow-up statements

412 
WWUS53 KIND 140058
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
858 PM EDT SAT AUG 13 2011

INC011-057-063-097-109-133-140145-
/O.CON.KIND.SV.W.0293.000000T0000Z-110814T0145Z/
BOONE-HAMILTON-HENDRICKS-MARION-MORGAN-PUTNAM-
858 PM EDT SAT AUG 13 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BOONE...HAMILTON...HENDRICKS...MARION...NORTHERN MORGAN AND EAST
CENTRAL PUTNAM COUNTIES UNTIL 945 PM EDT...

AT 853 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE 
THUNDERSTORMS PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  
THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NOBLESVILLE TO 
12 MILES NORTHWEST OF MARTINSVILLE...MOVING EAST AT 25 MPH.

A TRAINED WEATHER SPOTTER MEASURED A WIND GUST OF 77 MPH IN 
PLAINFIELD 850 PM.

SEVERE THUNDERSTORMS WILL BE NEAR...
  MONROVIA...NOBLESVILLE AND CARMEL AROUND 905 PM EDT...
  INDIANAPOLIS INT'L AIRPORT...WYNNEDALE...WILLIAMS CREEK AND SPRING
  HILL AROUND 910 PM EDT...
  CENTERTON...CAMBY...BROAD RIPPLE AND MOORESVILLE AROUND 915 PM
  EDT...
  INDIANA STATE FAIRGROUNDS...CASTLETON...BROOKLYN AND BETHANY AROUND
  920 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4015 8587 3987 8595 3965 8597 3963 8625
      3945 8625 3953 8676 3964 8682 3979 8667
      3993 8644 4014 8630
TIME...MOT...LOC 0057Z 264DEG 23KT 4011 8603 3955 8656
WIND...HAIL 70MPH 1.00IN

$$

PUMA

657 
WWUS53 KIND 140108
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
908 PM EDT SAT AUG 13 2011

INC011-133-140118-
/O.CAN.KIND.SV.W.0293.000000T0000Z-110814T0145Z/
BOONE-PUTNAM-
908 PM EDT SAT AUG 13 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BOONE AND EAST
CENTRAL PUTNAM COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE 
WARNED AREA.

LAT...LON 3987 8595 3965 8597 3963 8625 3945 8625
      3951 8662 3960 8666 3962 8664 3963 8666
      3974 8665 3980 8643 3993 8627 3993 8624
      3997 8624 4014 8614 4015 8587
TIME...MOT...LOC 0108Z 272DEG 35KT 3996 8597 3950 8640

$$

INC057-063-097-109-140145-
/O.CON.KIND.SV.W.0293.000000T0000Z-110814T0145Z/
HAMILTON-HENDRICKS-MARION-MORGAN-
908 PM EDT SAT AUG 13 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
HAMILTON...SOUTHERN HENDRICKS...MARION AND NORTHERN MORGAN COUNTIES
UNTIL 945 PM EDT...

AT 906 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE
THUNDERSTORMS PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM FISHERS TO 5 MILES
NORTH OF MARTINSVILLE...MOVING EAST AT 40 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  WAVERLY...WARREN PARK...LAWRENCE AND HOMECROFT AROUND 915 PM EDT...
  SOUTHPORT AROUND 920 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3987 8595 3965 8597 3963 8625 3945 8625
      3951 8662 3960 8666 3962 8664 3963 8666
      3974 8665 3980 8643 3993 8627 3993 8624
      3997 8624 4014 8614 4015 8587
TIME...MOT...LOC 0108Z 272DEG 35KT 3996 8597 3950 8640
WIND...HAIL 70MPH <.75IN

$$

PUMA

999 
WWUS53 KIND 140120
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
920 PM EDT SAT AUG 13 2011

INC057-063-097-109-140145-
/O.CON.KIND.SV.W.0293.000000T0000Z-110814T0145Z/
HAMILTON-HENDRICKS-MARION-MORGAN-
920 PM EDT SAT AUG 13 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
HAMILTON...SOUTHEASTERN HENDRICKS...MARION AND NORTHEASTERN MORGAN
COUNTIES UNTIL 945 PM EDT...

AT 915 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE
THUNDERSTORMS PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM LAWRENCE TO 5 MILES
NORTH OF MARTINSVILLE...MOVING SOUTHEAST AT 35 MPH.

SEVERE THUNDERSTORMS WILL AFFECT MAINLY RURAL AREAS OF MARION...
NORTHEASTERN MORGAN...SOUTHEASTERN HAMILTON AND SOUTHEASTERN
HENDRICKS COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4015 8587 3987 8595 3965 8597 3963 8625
      3945 8625 3948 8642 3968 8643 3974 8632
      3991 8612 4009 8607
TIME...MOT...LOC 0120Z 300DEG 31KT 3980 8592 3947 8636
WIND...HAIL 70MPH <.75IN

$$

PUMA

886 
WWUS53 KIND 140136
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
936 PM EDT SAT AUG 13 2011

INC057-063-097-109-140146-
/O.EXP.KIND.SV.W.0293.000000T0000Z-110814T0145Z/
HAMILTON-HENDRICKS-MARION-MORGAN-
936 PM EDT SAT AUG 13 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HAMILTON...
SOUTHEASTERN HENDRICKS...MARION AND NORTHEASTERN MORGAN COUNTIES WILL
EXPIRE AT 945 PM EDT/845 PM CDT/...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.

LAT...LON 4015 8587 3987 8595 3965 8597 3963 8625
      3945 8625 3948 8642 3968 8643 3974 8632
      3991 8612 4009 8607
TIME...MOT...LOC 0136Z 300DEG 31KT 3977 8571 3956 8596
          3943 8623

$$

PUMA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 13, 8:21 PM EDT	Special Weather Statement	IND	Boone, Hendricks, Putnam	39 min
Aug 13, 9:04 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Madison	56 min
Aug 13, 10:31 PM EDT	Special Weather Statement	IND	Monroe	44 min
Aug 13, 10:38 PM EDT	Severe Thunderstorm Warning	IND	Brown, Monroe, Owen	52 min
Aug 13, 10:45 PM EDT	Severe Thunderstorm Warning	IND	Greene, Monroe	30 min
Aug 13, 11:12 PM EDT	Severe Thunderstorm Warning	IND	Brown, Greene, Lawrence, Monroe	33 min
Aug 13, 11:48 PM EDT	Special Weather Statement	IND	Jackson, Lawrence	42 min
Aug 14, 12:26 AM EDT	Special Weather Statement	IND	Jennings	49 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2011 Every severe thunderstorm warning 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.