Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 49, NWS Indianapolis, IN

March 23, 2012Brown County, Johnson County, Morgan County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 23, 2012, 8:10 PM EDT for Brown County, Johnson County, Morgan County, Indiana. It was in force for 50 min. 5 reports 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 23, 2012, 8:10 PM EDT (00:10 UTC)
Expired: Mar 23, 2012, 9:00 PM EDT
In force: 50 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Brown County, IN, Johnson County, IN, Morgan County, IN

The radar

The Indianapolis radar (KIND), 42 km from the middle of the area, began a volume at 00:10 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.

What was reported inside it

Time	Report	Where	Remark
Mar 23, 8:10 PM EDT	TSTM WND DMG	2 S Spearsville, IN	TREE LIMBS AND OTHER LITTER AT WEBER HILL AND EAST WASHINGTON
Mar 23, 8:15 PM EDT	HAIL 1	S Spearsville, IN
Mar 23, 8:30 PM EDT	HAIL 0.25	Trafalgar, IN
Mar 23, 8:47 PM EDT	HAIL 0.25	Franklin, IN	INTERMITTENT HAIL FROM 2047 TO 2057 EDT WITH VERY HEAVY RAIN AT US 31 AND SR 44
Mar 23, 8:54 PM EDT	HAIL 0.25	2 S Franklin, IN

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

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, 4:39 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Mar 23, 6:25 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.2 hours before the alert went out and 203 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.

697 
WUUS53 KIND 240010
SVRIND
INC013-081-109-240100-
/O.NEW.KIND.SV.W.0049.120324T0010Z-120324T0100Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BROWN COUNTY IN SOUTH CENTRAL INDIANA...
  SOUTHERN JOHNSON COUNTY IN CENTRAL INDIANA...
  SOUTHEASTERN MORGAN COUNTY IN CENTRAL INDIANA...

* UNTIL 900 PM EDT

* AT 805 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR NASHVILLE...OR 16 MILES EAST OF
  BLOOMINGTON...AND MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FRANKLIN...
  BEANBLOSSOM...
  SPEARSVILLE...
  MORGANTOWN...
  PEOGA...
  PRINCES LAKES...
  TRAFALGAR...
  BARGERSVILLE...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 86 AND 89.

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 3925 8632 3955 8625 3947 8595 3934 8607
      3934 8608 3932 8608 3921 8619
TIME...MOT...LOC 0009Z 211DEG 21KT 3927 8622
WIND...HAIL <50MPH 1.00IN

$$

PUMA

2 follow-up statements

747 
WWUS53 KIND 240021
SVSIND

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

INC013-081-109-240100-
/O.CON.KIND.SV.W.0049.000000T0000Z-120324T0100Z/
BROWN-JOHNSON-MORGAN-
821 PM EDT FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
BROWN...SOUTHERN JOHNSON AND SOUTHEASTERN MORGAN COUNTIES UNTIL 900
PM EDT...

AT 819 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 9 MILES NORTH OF NASHVILLE...OR 16 MILES NORTHWEST
OF COLUMBUS...MOVING NORTHEAST AT 25 MPH.

IN ADDITION...AT 814 PM EDT...QUARTER SIZE WAS REPORTED 2 MILES 
SOUTH OF SPEARSVILLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  FRANKLIN...PEOGA...PRINCES LAKES...TRAFALGAR AND BARGERSVILLE.

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 3925 8632 3955 8625 3947 8595 3934 8607
      3934 8608 3932 8608 3921 8619
TIME...MOT...LOC 0021Z 211DEG 21KT 3933 8617
WIND...HAIL <50MPH 1.00IN

$$

KOCH

044 
WWUS53 KIND 240032
SVSIND

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

INC013-109-240042-
/O.CAN.KIND.SV.W.0049.000000T0000Z-120324T0100Z/
BROWN-MORGAN-
832 PM EDT FRI MAR 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN BROWN AND
SOUTHEASTERN MORGAN COUNTIES IS CANCELLED...

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

LAT...LON 3934 8607 3934 8618 3935 8625 3955 8625
      3947 8595
TIME...MOT...LOC 0032Z 212DEG 19KT 3936 8614

$$

INC081-240100-
/O.CON.KIND.SV.W.0049.000000T0000Z-120324T0100Z/
JOHNSON-
832 PM EDT FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
JOHNSON COUNTY UNTIL 900 PM EDT...

AT 828 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 10 MILES NORTHEAST OF NASHVILLE...OR 16 MILES
NORTHWEST OF COLUMBUS...MOVING NORTHEAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  FRANKLIN...PRINCES LAKES...TRAFALGAR AND BARGERSVILLE.

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 3934 8607 3934 8618 3935 8625 3955 8625
      3947 8595
TIME...MOT...LOC 0032Z 212DEG 19KT 3936 8614
WIND...HAIL <50MPH 1.00IN

$$

PUMA

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 9:08 PM EDT	Severe Thunderstorm Warning	IND	Decatur, Jennings	52 min
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.