Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 48, NWS Indianapolis, IN

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

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 23, 2012, 7:34 PM EDT for Brown County, Monroe County, Morgan County, Indiana. It was in force for 41 min. 8 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, 7:34 PM EDT (23:34 UTC)
Expired: Mar 23, 2012, 8:15 PM EDT
In force: 41 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Brown County, IN, Monroe County, IN, Morgan County, IN

The radar

The Indianapolis radar (KIND), 49 km from the middle of the area, began a volume at 23:37 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, 7:54 PM EDT	HAIL 1	Nashville, IN
Mar 23, 7:56 PM EDT	HAIL 1	Beanblossom, IN
Mar 23, 7:59 PM EDT	HAIL 0.25	2 N Nashville, IN
Mar 23, 8:00 PM EDT	HAIL 0.5	4 N Nashville, IN	STATE ROAD 135 IS COVERED AND SLICK WITH HAIL. EVENT TIME IS ESTIMATED.
Mar 23, 8:00 PM EDT	HAIL 1.5	3 N Nashville, IN	HAILSTONES FOUND ON GROUND A WHILE AFTER STORM PASSAGE
Mar 23, 8:01 PM EDT	FUNNEL CLOUD	2 N Nashville, IN
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

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, 12:44 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
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 12:00Z, 11.6 hours before the alert went out and 215 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: 233 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1093 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

007 
WUUS53 KIND 232334
SVRIND
INC013-105-109-240015-
/O.NEW.KIND.SV.W.0048.120323T2334Z-120324T0015Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN BROWN COUNTY IN SOUTH CENTRAL INDIANA...
  NORTHEASTERN MONROE COUNTY IN SOUTH CENTRAL INDIANA...
  SOUTHEASTERN MORGAN COUNTY IN CENTRAL INDIANA...

* UNTIL 815 PM EDT

* AT 732 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 9 MILES
  EAST OF BLOOMINGTON...AND MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NASHVILLE...
  YELLOWWOOD LAKE...
  UNIONVILLE...
  LAKE LEMON...
  HELMSBURG...
  MAHALASVILLE...
  BEANBLOSSOM...
  SPEARSVILLE...
  PEOGA...
  MORGANTOWN...

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 3913 8646 3943 8636 3939 8625 3934 8624
      3934 8613 3933 8608 3907 8632
TIME...MOT...LOC 2335Z 210DEG 21KT 3913 8635
WIND...HAIL 60MPH 1.00IN

$$

PUMA

2 follow-up statements

730 
WWUS53 KIND 232351
SVSIND

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

INC013-105-109-240015-
/O.CON.KIND.SV.W.0048.000000T0000Z-120324T0015Z/
BROWN-MONROE-MORGAN-
751 PM EDT FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
BROWN...NORTHEASTERN MONROE AND SOUTHEASTERN MORGAN COUNTIES UNTIL
815 PM EDT...

AT 746 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
NASHVILLE...OR 11 MILES EAST OF BLOOMINGTON...MOVING NORTHEAST AT 25
MPH.

LOCATIONS IMPACTED INCLUDE...
  NASHVILLE...HELMSBURG...MAHALASVILLE...BEANBLOSSOM...SPEARSVILLE
  AND MORGANTOWN.

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 3913 8646 3943 8636 3939 8625 3934 8624
      3934 8613 3933 8608 3907 8632
TIME...MOT...LOC 2351Z 210DEG 21KT 3921 8629
WIND...HAIL 60MPH 1.00IN

$$

KOCH

620 
WWUS53 KIND 232358 RRA
SVSIND

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

INC013-105-109-240015-
/O.CON.KIND.SV.W.0048.000000T0000Z-120324T0015Z/
BROWN-MONROE-MORGAN-
758 PM EDT FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
BROWN...NORTHEASTERN MONROE AND SOUTHEASTERN MORGAN COUNTIES UNTIL
815 PM EDT...

AT 756 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
NASHVILLE...OR 14 MILES EAST OF BLOOMINGTON...MOVING NORTHEAST AT 25
MPH.

LOCATIONS IMPACTED INCLUDE...
  HELMSBURG...MAHALASVILLE...BEANBLOSSOM...SPEARSVILLE AND
  MORGANTOWN.

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 3913 8646 3943 8636 3939 8625 3934 8624
      3934 8613 3933 8608 3907 8632
TIME...MOT...LOC 2358Z 210DEG 21KT 3925 8626
WIND...HAIL 60MPH 1.00IN

$$

KOCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 23, 4:04 PM EDT	Special Weather Statement	IND	Knox, Sullivan	26 min
Mar 23, 4:10 PM EDT	Severe Thunderstorm Warning	IND	Sullivan, Vigo	35 min
Mar 23, 4:14 PM EDT	Severe Thunderstorm Warning	IND	Greene, Knox, Sullivan	31 min
Mar 23, 4:38 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Knox	37 min
Mar 23, 4:43 PM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Owen, Parke, Sullivan, Vermillion and 1 more	47 min
Mar 23, 5:12 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Martin	33 min
Mar 23, 5:17 PM EDT	Severe Thunderstorm Warning	IND	Clay, Owen, Parke, Putnam	28 min
Mar 23, 5:24 PM EDT	Tornado Warning	IND	Daviess, Greene, Martin	21 min
Mar 23, 5:29 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke	46 min
Mar 23, 5:41 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Lawrence, Martin, Monroe, Owen	34 min
Mar 23, 5:54 PM EDT	Tornado Warning	IND	Greene, Lawrence, Monroe	21 min
Mar 23, 6:12 PM EDT	Tornado Warning	IND	Greene, Monroe	33 min
Mar 23, 6:42 PM EDT	Tornado Warning	IND	Brown, Monroe, Morgan	33 min
Mar 23, 6:46 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hendricks, Marion	44 min
Mar 23, 7:14 PM EDT	Special Weather Statement	IND	Morgan	61 min
Mar 23, 7:30 PM EDT	Special Weather Statement	IND	Hendricks	45 min
Mar 23, 7:51 PM EDT	Tornado Warning	IND	Brown	24 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.