Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 241, NWS Indianapolis, IN

September 7, 2012Jackson County, Jennings County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Sep 7, 2012, 11:04 PM EDT for Jackson County, Jennings County, Indiana. It was in force for 41 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: Sep 7, 2012, 11:04 PM EDT (03:04 UTC)
Expired: Sep 7, 2012, 11:45 PM EDT
In force: 41 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Jackson County, IN, Jennings County, IN

The radar

The Indianapolis radar (KIND), 103 km from the middle of the area, began a volume at 03:06 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
Sep 7, 11:15 PM EDT	TSTM WND GST 67	Hayden, IN	LIMBS AND SMALL TREES DOWNED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.1 hours before the alert went out and 167 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: 531 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1512 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 195 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

870 
WUUS53 KIND 080304
SVRIND
INC071-079-080345-
/O.NEW.KIND.SV.W.0241.120908T0304Z-120908T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1104 PM EDT FRI SEP 7 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL JACKSON COUNTY IN SOUTH CENTRAL INDIANA...
  JENNINGS COUNTY IN SOUTHEAST INDIANA...

* UNTIL 1145 PM EDT

* AT 1102 PM 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 SOUTHWEST OF
  VERNON...OR 11 MILES EAST OF SEYMOUR...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NORTH VERNON...
  VERNON...
  PARIS CROSSING...
  BUTLERVILLE...
  NEBRASKA...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 41 AND 46.

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 3885 8587 3913 8574 3913 8557 3916 8551
      3916 8543 3891 8545 3891 8553 3888 8553
      3888 8556 3886 8557 3885 8560 3883 8560
      3882 8563 3882 8573 3881 8577
TIME...MOT...LOC 0304Z 274DEG 30KT 3891 8567
WIND...HAIL 70MPH <.75IN

$$

TDUD

3 follow-up statements

105 
WWUS53 KIND 080310
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1110 PM EDT FRI SEP 7 2012

INC071-080321-
/O.CAN.KIND.SV.W.0241.000000T0000Z-120908T0345Z/
JACKSON-
1110 PM EDT FRI SEP 7 2012

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

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

LAT...LON 3889 8579 3913 8574 3913 8557 3916 8551
      3916 8543 3891 8545 3891 8553 3888 8553
      3888 8556 3886 8557 3885 8560 3883 8560
      3882 8563 3882 8573 3881 8577
TIME...MOT...LOC 0311Z 274DEG 30KT 3890 8560

$$

INC079-080345-
/O.CON.KIND.SV.W.0241.000000T0000Z-120908T0345Z/
JENNINGS-
1110 PM EDT FRI SEP 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR JENNINGS
COUNTY UNTIL 1145 PM EDT...

AT 1106 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH.  THIS STORM WAS LOCATED 6 MILES SOUTH OF VERNON...OR 13
MILES EAST OF SEYMOUR...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  BUTLERVILLE AND NEBRASKA.

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 3889 8579 3913 8574 3913 8557 3916 8551
      3916 8543 3891 8545 3891 8553 3888 8553
      3888 8556 3886 8557 3885 8560 3883 8560
      3882 8563 3882 8573 3881 8577
TIME...MOT...LOC 0311Z 274DEG 30KT 3890 8560
WIND...HAIL 70MPH <.75IN

$$

TDUD

178 
WWUS53 KIND 080323
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1123 PM EDT FRI SEP 7 2012

INC079-080345-
/O.CON.KIND.SV.W.0241.000000T0000Z-120908T0345Z/
JENNINGS-
1123 PM EDT FRI SEP 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR JENNINGS
COUNTY UNTIL 1145 PM EDT...

AT 1120 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH.  THIS STORM WAS LOCATED 9 MILES SOUTHEAST OF VERNON...OR
21 MILES EAST OF SEYMOUR...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME SOUTHEASTERN JENNINGS COUNTY.

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 3885 8574 3905 8566 3913 8557 3916 8551
      3916 8543 3891 8545 3891 8553 3888 8553
      3888 8556 3886 8557 3885 8560 3883 8560
      3882 8563 3882 8573
TIME...MOT...LOC 0323Z 274DEG 30KT 3889 8547
WIND...HAIL 70MPH <.75IN

$$

TDUD

809 
WWUS53 KIND 080336
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1136 PM EDT FRI SEP 7 2012

INC079-080346-
/O.EXP.KIND.SV.W.0241.000000T0000Z-120908T0345Z/
JENNINGS-
1136 PM EDT FRI SEP 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR JENNINGS COUNTY WILL EXPIRE AT
1145 PM EDT/1045 PM CDT/...

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

LAT...LON 3885 8574 3905 8566 3913 8557 3916 8551
      3916 8543 3891 8545 3891 8553 3888 8553
      3888 8556 3886 8557 3885 8560 3883 8560
      3882 8563 3882 8573
TIME...MOT...LOC 0336Z 274DEG 30KT 3888 8533

$$

TDUD

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 7, 8:26 PM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Knox, Sullivan, Vigo	49 min
Sep 7, 8:41 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hamilton, Marion	49 min
Sep 7, 9:17 PM EDT	Areal Flood Advisory	IND	Boone, Hamilton, Hancock, Johnson, Marion, Morgan	3 hr
Sep 7, 9:45 PM EDT	Severe Thunderstorm Warning	IND	Decatur, Johnson, Rush, Shelby	45 min
Sep 7, 10:32 PM EDT	Areal Flood Advisory	IND	Daviess, Knox, Lawrence, Martin	3 hr
Sep 7, 10:39 PM EDT	Areal Flood Advisory	IND	Shelby	3 hr
Sep 7, 10:48 PM EDT	Tornado Warning	IND	Bartholomew, Decatur, Jennings	13 min
Sep 8, 12:29 AM EDT	Areal Flood Advisory	IND	Marion	3 hr
Sep 8, 3:36 AM EDT	Areal Flood Advisory	IND	Marion, Morgan	4 hr
Sep 8, 7:08 AM EDT	Areal Flood Advisory	IND	Marion, Morgan	4 hr

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.