Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 145, NWS Indianapolis, IN

July 8, 2012Jackson County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 8, 2012, 2:39 PM EDT for Jackson County, Indiana. It was in force for 51 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 8, 2012, 2:39 PM EDT (18:39 UTC)
Expired: Jul 8, 2012, 3:30 PM EDT
In force: 51 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Jackson County, IN

The radar

The Louisville radar (KLVX), 92 km from the middle of the area, began a volume at 18:41 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.7 hours before the alert went out and 196 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: 2132 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.4

Open this sounding in Storm Lab

The text

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

421 
WUUS53 KIND 081839
SVRIND
INC071-081930-
/O.NEW.KIND.SV.W.0145.120708T1839Z-120708T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
239 PM EDT SUN JUL 8 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN JACKSON COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 330 PM EDT

* AT 235 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 5 MILES
  WEST OF BROWNSTOWN...OR 14 MILES WEST OF SEYMOUR...AND MOVING
  SOUTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SEYMOUR...
  CORTLAND...
  CROTHERSVILLE...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 37 AND 56.

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 8594 3876 8596 3875 8597 3877 8605
      3878 8607 3904 8600 3904 8580 3877 8581
      3876 8582 3874 8584 3873 8586
TIME...MOT...LOC 1838Z 298DEG 18KT 3889 8612
WIND...HAIL 60MPH 1.00IN

$$

PUMA

3 follow-up statements

991 
WWUS53 KIND 081858
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
258 PM EDT SUN JUL 8 2012

INC071-081930-
/O.CON.KIND.SV.W.0145.000000T0000Z-120708T1930Z/
JACKSON-
258 PM EDT SUN JUL 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
JACKSON COUNTY UNTIL 330 PM EDT...

AT 253 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
BROWNSTOWN...OR 11 MILES SOUTHWEST OF SEYMOUR...MOVING EAST AT 25
MPH.

LOCATIONS IMPACTED INCLUDE...
  SEYMOUR AND CROTHERSVILLE.

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 8594 3876 8596 3875 8597 3877 8605
      3878 8607 3904 8600 3904 8580 3877 8581
      3876 8582 3874 8584 3873 8586
TIME...MOT...LOC 1858Z 277DEG 23KT 3885 8599
WIND...HAIL 60MPH 1.00IN

$$

PUMA

896 
WWUS53 KIND 081921
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
321 PM EDT SUN JUL 8 2012

INC071-081930-
/O.CON.KIND.SV.W.0145.000000T0000Z-120708T1930Z/
JACKSON-
321 PM EDT SUN JUL 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
JACKSON COUNTY UNTIL 330 PM EDT...

AT 316 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 7 MILES
SOUTHEAST OF BROWNSTOWN...OR 11 MILES SOUTH OF SEYMOUR...MOVING EAST
AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  CROTHERSVILLE.

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 8594 3876 8596 3875 8597 3877 8605
      3878 8607 3904 8600 3904 8580 3877 8581
      3876 8582 3874 8584 3873 8586
TIME...MOT...LOC 1921Z 280DEG 20KT 3880 8592
WIND...HAIL 60MPH 1.00IN

$$

NIELD

270 
WWUS53 KIND 081927
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
327 PM EDT SUN JUL 8 2012

INC071-081937-
/O.EXP.KIND.SV.W.0145.000000T0000Z-120708T1930Z/
JACKSON-
327 PM EDT SUN JUL 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN JACKSON COUNTY WILL 
EXPIRE AT 330 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.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT.

LAT...LON 3875 8594 3876 8596 3875 8597 3877 8605
      3878 8607 3904 8600 3904 8580 3877 8581
      3876 8582 3874 8584 3873 8586
TIME...MOT...LOC 1927Z 280DEG 20KT 3877 8588

$$

NIELD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:40 PM EDT	Special Weather Statement	IND	Johnson	50 min
Jul 7, 10:29 PM EDT	Special Weather Statement	IND	Lawrence	46 min
Jul 7, 10:31 PM EDT	Special Weather Statement	IND	Jackson	44 min
Jul 8, 1:25 PM EDT	Severe Thunderstorm Warning	IND	Lawrence, Monroe	50 min
Jul 8, 1:43 PM EDT	Severe Thunderstorm Warning	IND	Lawrence	32 min
Jul 8, 2:15 PM EDT	Severe Thunderstorm Warning	IND	Brown, Jackson, Lawrence	45 min
Jul 8, 2:49 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox	41 min
Jul 8, 3:03 PM EDT	Severe Thunderstorm Warning	IND	Jackson	27 min
Jul 8, 3:10 PM EDT	Severe Thunderstorm Warning	IND	Sullivan	50 min
Jul 8, 3:17 PM EDT	Areal Flood Advisory	IND	Lawrence, Martin	3 hr
Jul 8, 3:24 PM EDT	Severe Thunderstorm Warning	IND	Greene, Owen	51 min
Jul 8, 3:29 PM EDT	Severe Thunderstorm Warning	IND	Greene	46 min
Jul 8, 3:35 PM EDT	Severe Thunderstorm Warning	IND	Monroe	40 min
Jul 8, 3:37 PM EDT	Areal Flood Advisory	IND	Greene	3 hr
Jul 8, 3:41 PM EDT	Areal Flood Advisory	IND	Jackson	3 hr
Jul 8, 4:03 PM EDT	Severe Thunderstorm Warning	IND	Clay	10 min
Jul 8, 4:22 PM EDT	Areal Flood Advisory	IND	Greene, Lawrence, Monroe	3 hr
Jul 8, 5:44 PM EDT	Special Weather Statement	IND	Knox	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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.