Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 161, NWS Indianapolis, IN

July 24, 20125 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 24, 2012, 8:46 AM EDT for 5 counties in Indiana. It was in force for 59 min. 2 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: Jul 24, 2012, 8:46 AM EDT (12:46 UTC)
Expired: Jul 24, 2012, 9:45 AM EDT
In force: 59 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Carroll County, IN, Clinton County, IN, Howard County, IN, Tippecanoe County, IN, Tipton County, IN

The radar

The Indianapolis radar (KIND), 102 km from the middle of the area, began a volume at 12:48 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
Jul 24, 9:55 AM EDT	TSTM WND DMG	Sharpsville, IN	POWER KNOCKED OUT BY STORM WINDS AT TRI-CENTRAL HIGH SCHOOL.
Jul 24, 9:55 AM EDT	TSTM WND GST 56	Kokomo, 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.

Issued	Product	Office	Lasted
Jul 24, 8:00 AM EDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 0.8 hours before the alert went out and 183 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: 841 J/kg
Mixed-layer CIN: -263 J/kg
Mixed-layer LCL: 2251 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 77 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.

431 
WUUS53 KIND 241246
SVRIND
INC015-023-067-157-159-241345-
/O.NEW.KIND.SV.W.0161.120724T1246Z-120724T1345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
846 AM EDT TUE JUL 24 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CARROLL COUNTY IN NORTH CENTRAL INDIANA...
  NORTHEASTERN CLINTON COUNTY IN CENTRAL INDIANA...
  HOWARD COUNTY IN CENTRAL INDIANA...
  NORTHEASTERN TIPPECANOE COUNTY IN WEST CENTRAL INDIANA...
  WESTERN TIPTON COUNTY IN CENTRAL INDIANA...

* UNTIL 945 AM EDT

* AT 843 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
  EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 7 MILES NORTH OF
  REMINGTON...OR 17 MILES EAST OF KENTLAND...AND MOVING SOUTHEAST AT
  60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  KOKOMO...
  DELPHI...
  YEOMAN...
  CAMDEN...
  FLORA...
  ROSSVILLE...
  BURLINGTON...
  MICHIGANTOWN...
  RUSSIAVILLE...
  INDIAN HEIGHTS...
  KEMPTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4074 8653 4070 8652 4070 8641 4068 8636
      4057 8636 4056 8596 4021 8621 4022 8624
      4056 8685 4057 8678 4066 8678 4067 8676
      4073 8676 4074 8675
TIME...MOT...LOC 1245Z 302DEG 53KT 4085 8711
WIND...HAIL 70MPH <.75IN

$$

RYAN

2 follow-up statements

860 
WWUS53 KIND 241301
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
901 AM EDT TUE JUL 24 2012

INC015-023-067-157-159-241345-
/O.CON.KIND.SV.W.0161.000000T0000Z-120724T1345Z/
CARROLL-CLINTON-HOWARD-TIPPECANOE-TIPTON-
901 AM EDT TUE JUL 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
CLINTON...CARROLL...HOWARD...NORTHEASTERN TIPPECANOE AND WESTERN
TIPTON COUNTIES UNTIL 945 AM EDT...

AT 857 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH.  THIS STORM WAS LOCATED 7 MILES EAST OF WOLCOTT...OR 8
MILES WEST OF MONTICELLO...MOVING SOUTHEAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
  KOKOMO...DELPHI...YEOMAN...CAMDEN...FLORA...ROSSVILLE...
  BURLINGTON...MICHIGANTOWN...RUSSIAVILLE...INDIAN HEIGHTS...KEMPTON
  AND SHARPSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

WIND DAMAGE ASSOCIATED WITH AN OUTFLOW BOUNDARY WITH THIS STORM WILL 
OCCUR WELL AHEAD OF ANY RAIN OR LIGHTNING. DO NOT WAIT FOR THE SOUND 
OF THUNDER BEFORE TAKING COVER. SEEK SHELTER IMMEDIATELY INSIDE A 
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4074 8653 4070 8652 4070 8641 4068 8636
      4057 8636 4056 8596 4021 8621 4022 8624
      4056 8685 4057 8678 4066 8678 4067 8676
      4073 8676 4074 8675
TIME...MOT...LOC 1300Z 302DEG 53KT 4073 8687
WIND...HAIL 70MPH <.75IN

$$

RYAN

570 
WWUS53 KIND 241322
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
922 AM EDT TUE JUL 24 2012

INC157-241329-
/O.CAN.KIND.SV.W.0161.000000T0000Z-120724T1345Z/
TIPPECANOE-
922 AM EDT TUE JUL 24 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN TIPPECANOE COUNTY
IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4074 8653 4070 8652 4070 8640 4068 8636
      4057 8636 4056 8596 4021 8621 4022 8625
      4052 8670 4056 8670 4056 8677 4057 8678
      4066 8678 4067 8676 4074 8675
TIME...MOT...LOC 1319Z 302DEG 53KT 4058 8656

$$

INC015-023-067-159-241345-
/O.CON.KIND.SV.W.0161.000000T0000Z-120724T1345Z/
CARROLL-CLINTON-HOWARD-TIPTON-
922 AM EDT TUE JUL 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
CLINTON...CARROLL...HOWARD AND WESTERN TIPTON COUNTIES UNTIL 945 AM
EDT...

AT 915 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR DELPHI...OR 12 MILES SOUTHEAST
OF MONTICELLO...MOVING SOUTHEAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
  KOKOMO...FLORA...BURLINGTON...MICHIGANTOWN...RUSSIAVILLE...INDIAN
  HEIGHTS...KEMPTON AND SHARPSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

WIND DAMAGE ASSOCIATED WITH AN OUTFLOW BOUNDARY WITH THIS STORM WILL 
OCCUR WELL AHEAD OF ANY RAIN OR LIGHTNING. DO NOT WAIT FOR THE 
SOUND OF THUNDER BEFORE TAKING COVER. SEEK SHELTER IMMEDIATELY 
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

RAINFALL WITH THIS STORM WILL LIKELY BE CONFINED MAINLY TO CARROLL 
AND HOWARD COUNTIES. 

&&

LAT...LON 4074 8653 4070 8652 4070 8640 4068 8636
      4057 8636 4056 8596 4021 8621 4022 8625
      4052 8670 4056 8670 4056 8677 4057 8678
      4066 8678 4067 8676 4074 8675
TIME...MOT...LOC 1319Z 302DEG 53KT 4058 8656
WIND...HAIL 60MPH <.75IN

$$

RYAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 3:18 AM EDT	Heat Advisory	IND	Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more	41 hr
Jul 24, 6:09 AM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Randolph	39 min
Jul 24, 9:40 AM EDT	Severe Thunderstorm Warning	IND	Delaware, Howard, Madison, Tipton	50 min
Jul 24, 10:14 AM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Randolph	46 min
Jul 24, 7:37 PM EDT	Special Weather Statement	IND	Jackson	53 min
Jul 24, 7:59 PM EDT	Special Weather Statement	IND	Jackson	46 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2012 Every severe thunderstorm warning 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.