Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 154, NWS Indianapolis, IN

July 18, 2012Bartholomew County, Jackson County, Jennings County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 18, 2012, 3:48 PM EDT for Bartholomew County, Jackson County, Jennings County, Indiana. It was in force for 27 min. 1 report 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 18, 2012, 3:48 PM EDT (19:48 UTC)
Expired: Jul 18, 2012, 4:15 PM EDT
In force: 27 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Bartholomew County, IN, Jackson County, IN, Jennings County, IN

The radar

The Indianapolis radar (KIND), 87 km from the middle of the area, began a volume at 19:50 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 18, 4:00 PM EDT	HAIL 1	5 Ne Seymour, IN	TIME ESTIMATED

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 18, 1:16 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.8 hours before the alert went out and 182 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: 2497 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1093 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: -5 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.

210 
WUUS53 KIND 181948
SVRIND
INC005-071-079-182015-
/O.NEW.KIND.SV.W.0154.120718T1948Z-120718T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
348 PM EDT WED JUL 18 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL BARTHOLOMEW COUNTY IN CENTRAL INDIANA...  
  NORTHEASTERN JACKSON COUNTY IN SOUTH CENTRAL INDIANA...  
  WEST CENTRAL JENNINGS COUNTY IN SOUTHEAST INDIANA...

* UNTIL 415 PM EDT

* AT 346 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 NEAR
  SEYMOUR...AND MOVING SOUTH AT 5 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SEYMOUR...
  HAYDEN...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 49 AND 58.

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 3897 8573 3893 8592 3904 8599 3910 8582
TIME...MOT...LOC 1947Z 340DEG 5KT 3900 8586
WIND...HAIL 60MPH 1.00IN

$$

2 follow-up statements

988 
WWUS53 KIND 182000
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
400 PM EDT WED JUL 18 2012

INC005-182010-
/O.CAN.KIND.SV.W.0154.000000T0000Z-120718T2015Z/
BARTHOLOMEW-
400 PM EDT WED JUL 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL BARTHOLOMEW
COUNTY IS CANCELLED...

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

LAT...LON 3893 8592 3901 8596 3907 8580 3897 8573
      3897 8574
TIME...MOT...LOC 2000Z 340DEG 5KT 3898 8585

$$

INC071-079-182015-
/O.CON.KIND.SV.W.0154.000000T0000Z-120718T2015Z/
JACKSON-JENNINGS-
400 PM EDT WED JUL 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
JACKSON AND WEST CENTRAL JENNINGS COUNTIES UNTIL 415 PM EDT...

AT 355 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 NEAR
SEYMOUR...MOVING SOUTH AT 5 MPH.

LOCATIONS IMPACTED INCLUDE...
  SEYMOUR AND HAYDEN.

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 3893 8592 3901 8596 3907 8580 3897 8573
      3897 8574
TIME...MOT...LOC 2000Z 340DEG 5KT 3898 8585
WIND...HAIL 60MPH 1.00IN

$$

50

273 
WWUS53 KIND 182013
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
413 PM EDT WED JUL 18 2012

INC071-079-182023-
/O.EXP.KIND.SV.W.0154.000000T0000Z-120718T2015Z/
JACKSON-JENNINGS-
413 PM EDT WED JUL 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JACKSON AND WEST 
CENTRAL JENNINGS COUNTIES WILL EXPIRE AT 415 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3893 8592 3901 8596 3907 8580 3897 8573
      3897 8574
TIME...MOT...LOC 2013Z 340DEG 5KT 3896 8584

$$

50

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 12:33 PM EDT	Special Weather Statement	IND	Hancock	42 min
Jul 18, 1:10 PM EDT	Special Weather Statement	IND	Hamilton, Hancock	50 min
Jul 18, 1:24 PM EDT	Special Weather Statement	IND	Marion	51 min
Jul 18, 1:34 PM EDT	Special Weather Statement	IND	Hancock	26 min
Jul 18, 2:18 PM EDT	Special Weather Statement	IND	Marion	42 min
Jul 18, 2:33 PM EDT	Special Weather Statement	IND	Shelby	27 min
Jul 18, 2:49 PM EDT	Special Weather Statement	IND	Morgan	41 min
Jul 18, 3:02 PM EDT	Special Weather Statement	IND	Johnson	28 min
Jul 18, 3:32 PM EDT	Special Weather Statement	IND	Brown	28 min
Jul 18, 4:06 PM EDT	Special Weather Statement	IND	Brown	24 min
Jul 18, 4:11 PM EDT	Special Weather Statement	IND	Delaware	49 min
Jul 18, 4:30 PM EDT	Special Weather Statement	IND	Brown	30 min
Jul 18, 4:55 PM EDT	Special Weather Statement	IND	Carroll	35 min
Jul 18, 5:15 PM EDT	Special Weather Statement	IND	Greene	30 min
Jul 18, 5:33 PM EDT	Special Weather Statement	IND	Knox	27 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.