Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 155, NWS Indianapolis, IN

July 19, 2012Jackson County, Lawrence County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 19, 2012, 4:28 PM EDT for Jackson County, Lawrence County, Indiana. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 19, 2012, 4:28 PM EDT (20:28 UTC)
Expired: Jul 19, 2012, 5:15 PM EDT
In force: 47 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Jackson County, IN, Lawrence County, IN

The radar

The Louisville radar (KLVX), 91 km from the middle of the area, began a volume at 20:31 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.

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, 8.5 hours before the alert went out and 213 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.

060 
WUUS53 KIND 192028
SVRIND
INC071-093-192115-
/O.NEW.KIND.SV.W.0155.120719T2028Z-120719T2115Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN JACKSON COUNTY IN SOUTH CENTRAL INDIANA...
  EAST CENTRAL LAWRENCE COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 515 PM EDT

* AT 425 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 11
  MILES WEST OF BROWNSTOWN...OR 14 MILES EAST OF BEDFORD...AND MOVING
  EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BROWNSTOWN...
  PLEASANT VIEW...
  MEDORA...
  VALLONIA...

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 3875 8636 3893 8634 3893 8587 3874 8589
      3876 8596 3875 8598 3876 8599 3876 8604
      3878 8609 3876 8610 3876 8612 3878 8618
      3876 8627 3874 8629
TIME...MOT...LOC 2028Z 272DEG 17KT 3883 8622
WIND...HAIL 60MPH 1.00IN

$$

50

2 follow-up statements

760 
WWUS53 KIND 192045
SVSIND

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

INC093-192056-
/O.CAN.KIND.SV.W.0155.000000T0000Z-120719T2115Z/
LAWRENCE-
445 PM EDT THU JUL 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LAWRENCE COUNTY
IS CANCELLED...

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

LAT...LON 3876 8596 3875 8598 3876 8599 3876 8604
      3878 8609 3876 8610 3876 8612 3878 8618
      3877 8627 3893 8628 3893 8587 3874 8589
TIME...MOT...LOC 2046Z 272DEG 17KT 3881 8610

$$

INC071-192115-
/O.CON.KIND.SV.W.0155.000000T0000Z-120719T2115Z/
JACKSON-
445 PM EDT THU JUL 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
JACKSON COUNTY UNTIL 515 PM EDT...

AT 443 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
SOUTHWEST OF BROWNSTOWN...OR 16 MILES SOUTHWEST OF SEYMOUR...MOVING
EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  BROWNSTOWN.

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 3876 8596 3875 8598 3876 8599 3876 8604
      3878 8609 3876 8610 3876 8612 3878 8618
      3877 8627 3893 8628 3893 8587 3874 8589
TIME...MOT...LOC 2046Z 272DEG 17KT 3881 8610
WIND...HAIL 60MPH 1.00IN

$$

50

918 
WWUS53 KIND 192112
SVSIND

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

INC071-192122-
/O.EXP.KIND.SV.W.0155.000000T0000Z-120719T2115Z/
JACKSON-
512 PM EDT THU JUL 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN JACKSON COUNTY WILL 
EXPIRE AT 515 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT.

LAT...LON 3876 8596 3875 8598 3876 8599 3876 8604
      3878 8609 3876 8610 3876 8612 3878 8618
      3877 8627 3893 8628 3893 8587 3874 8589
TIME...MOT...LOC 2112Z 272DEG 17KT 3881 8594

$$

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, 4:40 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
Jul 19, 7:48 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Marion, Rush, Shelby	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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.