Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 53, NWS Indianapolis, IN

March 23, 2012Decatur County, Jennings County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 23, 2012, 9:08 PM EDT for Decatur County, Jennings County, Indiana. It was in force for 52 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: Mar 23, 2012, 9:08 PM EDT (01:08 UTC)
Expired: Mar 23, 2012, 10:00 PM EDT
In force: 52 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Decatur County, IN, Jennings County, IN

The radar

The Indianapolis radar (KIND), 101 km from the middle of the area, began a volume at 01:10 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
Mar 23, 6:25 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.1 hours before the alert went out and 155 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: 672 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 552 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

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

073 
WUUS53 KIND 240108
SVRIND
INC031-079-240200-
/O.NEW.KIND.SV.W.0053.120324T0108Z-120324T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
908 PM EDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

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

* UNTIL 1000 PM EDT

* AT 905 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 7 MILES SOUTH OF VERNON...OR 13 MILES EAST OF
  SEYMOUR...AND MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  VERNON...
  NORTH VERNON...
  BUTLERVILLE...
  NEBRASKA...
  MILLHOUSEN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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 3919 8543 3891 8544 3891 8553 3888 8553
      3888 8557 3886 8557 3888 8580 3928 8549
      3922 8538
TIME...MOT...LOC 0109Z 216DEG 20KT 3891 8564
WIND...HAIL <50MPH 1.00IN

$$

KOCH

2 follow-up statements

486 
WWUS53 KIND 240122
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
922 PM EDT FRI MAR 23 2012

INC031-079-240200-
/O.CON.KIND.SV.W.0053.000000T0000Z-120324T0200Z/
DECATUR-JENNINGS-
922 PM EDT FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
DECATUR AND JENNINGS COUNTIES UNTIL 1000 PM EDT...

AT 919 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR VERNON...OR 15 MILES EAST OF SEYMOUR...MOVING
NORTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  NORTH VERNON...BUTLERVILLE...NEBRASKA AND MILLHOUSEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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 3919 8543 3891 8544 3891 8553 3888 8553
      3888 8557 3886 8557 3888 8580 3928 8549
      3922 8538
TIME...MOT...LOC 0122Z 216DEG 20KT 3897 8558
WIND...HAIL <50MPH 1.00IN

$$

KOCH

565 
WWUS53 KIND 240155
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
955 PM EDT FRI MAR 23 2012

INC031-079-240205-
/O.EXP.KIND.SV.W.0053.000000T0000Z-120324T0200Z/
DECATUR-JENNINGS-
955 PM EDT FRI MAR 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL DECATUR AND
JENNINGS COUNTIES WILL EXPIRE AT 1000 PM EDT/900 PM CDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED.

LAT...LON 3919 8543 3891 8544 3891 8553 3888 8553
      3888 8557 3886 8557 3888 8580 3928 8549
      3922 8538
TIME...MOT...LOC 0155Z 208DEG 31KT 3915 8548

$$

KOCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 23, 8:10 PM EDT	Severe Thunderstorm Warning	IND	Brown, Johnson, Morgan	50 min
Mar 23, 8:20 PM EDT	Severe Thunderstorm Warning	IND	Brown, Jackson, Lawrence, Monroe	40 min
Mar 23, 8:41 PM EDT	Severe Thunderstorm Warning	IND	Johnson, Shelby	34 min
Mar 23, 8:43 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Jackson, Johnson	32 min
Mar 23, 9:07 PM EDT	Areal Flood Advisory	IND	Johnson	3 hr
Mar 23, 9:12 PM EDT	Severe Thunderstorm Warning	IND	Johnson, Shelby	33 min
Mar 23, 9:26 PM EDT	Areal Flood Advisory	IND	Shelby	8 hr
Mar 23, 9:39 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Shelby	36 min
Mar 23, 10:05 PM EDT	Areal Flood Advisory	IND	Hancock	4 hr
Mar 23, 10:13 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Hancock, Henry, Madison, Rush	47 min
Mar 23, 10:28 PM EDT	Areal Flood Advisory	IND	Decatur, Jennings	4 hr
Mar 23, 11:00 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry	60 min
Mar 24, 12:57 AM EDT	Areal Flood Advisory	IND	Johnson	4 hr
Mar 24, 2:29 AM EDT	Areal Flood Advisory	IND	Decatur, Jennings	3 hr
Mar 24, 5:57 PM EDT	River Flood Warning	IND	Jackson, Lawrence, Washington	66 hr
Mar 24, 7:59 PM EDT	River Flood Warning	IND	Jackson, Lawrence, Washington	5 days

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.