Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 31, NWS Indianapolis, IN

March 15, 2012Jennings County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 15, 2012, 8:02 AM EDT for Jennings County, Indiana. It was in force for 18 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: Mar 15, 2012, 8:02 AM EDT (12:02 UTC)
Expired: Mar 15, 2012, 8:20 AM EDT
In force: 18 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Jennings County, IN

The radar

The Louisville radar (KLVX), 99 km from the middle of the area, began a volume at 12:02 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
Mar 15, 8:06 AM EDT	HAIL 0.5	Paris Crossing, IN

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 12:00Z, 0.0 hours before the alert went out and 175 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: 1236 J/kg
Mixed-layer CIN: -110 J/kg
Mixed-layer LCL: 1005 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

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

576 
WUUS53 KIND 151202
SVRIND
INC079-151230-
/O.NEW.KIND.SV.W.0031.120315T1202Z-120315T1230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
802 AM EDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN JENNINGS COUNTY IN SOUTHEAST INDIANA...

* UNTIL 830 AM EDT

* AT 758 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 9 MILES NORTH OF SCOTTSBURG...OR 12 MILES
  SOUTHEAST OF SEYMOUR...AND MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PARIS CROSSING...

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 3887 8579 3892 8553 3888 8557 3885 8558
      3885 8560 3882 8561 3881 8564 3882 8568
      3881 8569 3882 8573 3880 8578 3881 8580
TIME...MOT...LOC 1202Z 259DEG 18KT 3882 8572
WIND...HAIL <50MPH 1.00IN

$$

CP

1 follow-up statement

542 
WWUS53 KIND 151220
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
820 AM EDT THU MAR 15 2012

INC079-151227-
/O.CAN.KIND.SV.W.0031.000000T0000Z-120315T1230Z/
JENNINGS-
820 AM EDT THU MAR 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN JENNINGS COUNTY IS
CANCELLED...

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

LAT...LON 3887 8579 3892 8553 3888 8557 3885 8558
      3885 8560 3882 8561 3881 8564 3882 8568
      3881 8569 3882 8573 3880 8578 3881 8580
TIME...MOT...LOC 1217Z 259DEG 18KT 3883 8563

$$

CP

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 4:24 AM EDT	Special Weather Statement	IND	Carroll, Clinton, Tippecanoe	51 min
Mar 15, 5:08 AM EDT	Special Weather Statement	IND	Howard	67 min
Mar 15, 5:44 AM EDT	Special Weather Statement	IND	Martin	46 min
Mar 15, 7:22 AM EDT	Special Weather Statement	IND	Jackson	23 min
Mar 15, 7:44 AM EDT	Special Weather Statement	IND	Jackson, Jennings	31 min
Mar 15, 7:47 AM EDT	Special Weather Statement	IND	Lawrence	28 min
Mar 15, 8:43 AM EDT	Special Weather Statement	IND	Jennings	32 min
Mar 15, 9:16 AM EDT	Special Weather Statement	IND	Jennings	29 min
Mar 15, 2:14 PM EDT	Severe Thunderstorm Warning	IND	Knox	24 min
Mar 15, 2:49 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Knox	26 min
Mar 15, 3:17 PM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Owen	28 min
Mar 15, 4:04 PM EDT	Severe Thunderstorm Warning	IND	Morgan, Owen	26 min
Mar 15, 4:29 PM EDT	Special Weather Statement	IND	Morgan	31 min
Mar 15, 5:05 PM EDT	Special Weather Statement	IND	Johnson, Shelby	25 min
Mar 15, 5:29 PM EDT	Special Weather Statement	IND	Hancock	31 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.