Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 159, NWS Indianapolis, IN

July 19, 20124 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 19, 2012, 7:48 PM EDT for 4 counties in Indiana. It was in force for 27 min. 5 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 19, 2012, 7:48 PM EDT (23:48 UTC)
Expired: Jul 19, 2012, 8:15 PM EDT
In force: 27 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hancock County, IN, Marion County, IN, Rush County, IN, Shelby County, IN

The radar

The Indianapolis radar (KIND), 41 km from the middle of the area, began a volume at 23:49 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 19, 7:56 PM EDT	TSTM WND GST 66	4 Sse Mccordsville, IN	LOCATED AT MOUNT COMFORT AIRPORT
Jul 19, 8:00 PM EDT	TSTM WND GST 60	1 Se Spring Lake, IN	LOCATED AT CR150W CR150S
Jul 19, 8:00 PM EDT	TSTM WND GST 72	Mccordsville, IN	2-INCH DIAMETER LIVE TREE SNAPPED AT BASE
Jul 19, 8:05 PM EDT	TSTM WND DMG	Mccordsville, IN	6-INCH DIAMETER TREE LIMB SNAPPED OFF
Jul 19, 8:05 PM EDT	TSTM WND GST 60	Mccordsville, 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 19, 4:11 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.8 hours before the alert went out and 177 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: 922 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1009 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 75 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.

066 
WUUS53 KIND 192348
SVRIND
INC059-097-139-145-200015-
/O.NEW.KIND.SV.W.0159.120719T2348Z-120720T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
748 PM EDT THU JUL 19 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HANCOCK COUNTY IN CENTRAL INDIANA...
  EAST CENTRAL MARION COUNTY IN CENTRAL INDIANA...
  WEST CENTRAL RUSH COUNTY IN CENTRAL INDIANA...
  NORTHEASTERN SHELBY COUNTY IN CENTRAL INDIANA...

* UNTIL 815 PM EDT

* AT 745 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  EAST OF LAWRENCE...OR 15 MILES EAST OF INDIANAPOLIS...AND MOVING
  SOUTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GREENFIELD...
  SPRING LAKE...
  NEW PALESTINE...
  MORRISTOWN...
  ARLINGTON...

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 93 AND 108.

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.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER...
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.

&&

LAT...LON 3953 8575 3985 8603 3993 8590 3993 8587
      3994 8586 3994 8582 3966 8552
TIME...MOT...LOC 2348Z 323DEG 28KT 3983 8586
WIND...HAIL 60MPH 1.00IN

$$

50

2 follow-up statements

175 
WWUS53 KIND 200000
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
800 PM EDT THU JUL 19 2012

INC059-097-139-145-200015-
/O.CON.KIND.SV.W.0159.000000T0000Z-120720T0015Z/
HANCOCK-MARION-RUSH-SHELBY-
800 PM EDT THU JUL 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR HANCOCK...EAST
CENTRAL MARION...WEST CENTRAL RUSH AND NORTHEASTERN SHELBY COUNTIES
UNTIL 815 PM EDT...

AT 754 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR
GREENFIELD...OR 17 MILES EAST OF INDIANAPOLIS...MOVING SOUTHEAST AT
30 MPH.

IN ADDITION...AT 756 PM EDT A 66 MPH WIND GUST WAS REPORTED AT MOUNT 
COMFORT AIRPORT WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  MORRISTOWN AND ARLINGTON.

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.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO 
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS 
IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. 
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE 
STRUCK BY LIGHTNING.

&&

LAT...LON 3953 8575 3985 8603 3993 8590 3993 8587
      3994 8586 3994 8582 3966 8552
TIME...MOT...LOC 2359Z 323DEG 28KT 3977 8580
WIND...HAIL 70MPH 1.00IN

$$

905 
WWUS53 KIND 200016
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
816 PM EDT THU JUL 19 2012

INC059-097-139-145-200026-
/O.EXP.KIND.SV.W.0159.000000T0000Z-120720T0015Z/
HANCOCK-MARION-RUSH-SHELBY-
816 PM EDT THU JUL 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR HANCOCK...EAST CENTRAL
MARION...WEST CENTRAL RUSH AND NORTHEASTERN SHELBY COUNTIES HAS
EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER GUSTY WINDS AROUND 50 MPH ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM.

LAT...LON 3953 8575 3985 8603 3993 8590 3993 8587
      3994 8586 3994 8582 3966 8552
TIME...MOT...LOC 0000Z 323DEG 28KT 3976 8579

$$

50

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 3:19 AM EDT	Heat Advisory	IND	Bartholomew, Brown, Clay, Daviess, Decatur, Greene and 9 more	17 hr
Jul 19, 3:33 PM EDT	Special Weather Statement	IND	Lawrence	27 min
Jul 19, 3:58 PM EDT	Special Weather Statement	IND	Monroe	32 min
Jul 19, 4:13 PM EDT	Special Weather Statement	IND	Jackson	32 min
Jul 19, 4:28 PM EDT	Severe Thunderstorm Warning	IND	Jackson, Lawrence	47 min
Jul 19, 4:40 PM EDT	Special Weather Statement	IND	Daviess	50 min
Jul 19, 4:54 PM EDT	Special Weather Statement	IND	Jennings	36 min
Jul 19, 5:23 PM EDT	Special Weather Statement	IND	Tippecanoe	37 min
Jul 19, 5:50 PM EDT	Special Weather Statement	IND	Fountain	25 min
Jul 19, 5:59 PM EDT	Severe Thunderstorm Warning	IND	Clinton, Montgomery, Tippecanoe	31 min
Jul 19, 6:16 PM EDT	Special Weather Statement	IND	Parke	29 min
Jul 19, 6:29 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Montgomery, Putnam	31 min
Jul 19, 6:32 PM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton	28 min
Jul 19, 7:17 PM EDT	Special Weather Statement	IND	Hamilton	28 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.