Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 36, NWS Indianapolis, IN

March 17, 2012Bartholomew County, Decatur County, Shelby County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 17, 2012, 9:43 PM EDT for Bartholomew County, Decatur County, Shelby County, Indiana. It was in force for 32 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 17, 2012, 9:43 PM EDT (01:43 UTC)
Expired
Mar 17, 2012, 10:15 PM EDT
In force
32 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Bartholomew County, IN, Decatur County, IN, Shelby County, IN

The radar

The Indianapolis radar (KIND), 69 km from the middle of the area, began a volume at 01:45 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.7 hours before the alert went out and 156 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2012-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 742 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2012-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
742 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1051 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
133 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.

713 
WUUS53 KIND 180143
SVRIND
INC005-031-145-180215-
/O.NEW.KIND.SV.W.0036.120318T0143Z-120318T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
943 PM EDT SAT MAR 17 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BARTHOLOMEW COUNTY IN CENTRAL INDIANA...
  NORTHWESTERN DECATUR COUNTY IN CENTRAL INDIANA...
  SOUTHEASTERN SHELBY COUNTY IN CENTRAL INDIANA...

* UNTIL 1015 PM EDT

* AT 940 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 13 MILES NORTHEAST OF COLUMBUS...AND MOVING
  NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BURNEY...
  MILFORD...
  ST. PAUL...
  ADAMS...

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 125 AND 131.

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 3937 8552 3926 8574 3933 8576 3946 8560
      3945 8551
TIME...MOT...LOC 0143Z 227DEG 24KT 3934 8570
WIND...HAIL <50MPH 1.00IN

$$

PUMA
2 follow-up statements
187 
WWUS53 KIND 180159
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
959 PM EDT SAT MAR 17 2012

INC005-180209-
/O.CAN.KIND.SV.W.0036.000000T0000Z-120318T0215Z/
BARTHOLOMEW-
959 PM EDT SAT MAR 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BARTHOLOMEW
COUNTY IS CANCELLED...

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

LAT...LON 3942 8552 3937 8552 3930 8568 3932 8569
      3935 8569 3935 8570 3936 8571 3946 8560
      3945 8551
TIME...MOT...LOC 0159Z 233DEG 14KT 3936 8564

$$

INC031-145-180215-
/O.CON.KIND.SV.W.0036.000000T0000Z-120318T0215Z/
DECATUR-SHELBY-
959 PM EDT SAT MAR 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
DECATUR AND SOUTHEASTERN SHELBY COUNTIES UNTIL 1015 PM EDT...

AT 954 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 10 MILES WEST OF GREENSBURG...OR 13 MILES SOUTHEAST
OF SHELBYVILLE...MOVING NORTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  MILFORD...ST. PAUL AND ADAMS.

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 3942 8552 3937 8552 3930 8568 3932 8569
      3935 8569 3935 8570 3936 8571 3946 8560
      3945 8551
TIME...MOT...LOC 0159Z 233DEG 14KT 3936 8564
WIND...HAIL <50MPH 1.00IN

$$

PUMA
964 
WWUS53 KIND 180211
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1011 PM EDT SAT MAR 17 2012

INC031-145-180221-
/O.EXP.KIND.SV.W.0036.000000T0000Z-120318T0215Z/
DECATUR-SHELBY-
1011 PM EDT SAT MAR 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DECATUR AND
SOUTHEASTERN SHELBY COUNTIES WILL EXPIRE AT 1015 PM EDT/915 PM
CDT/...

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

LAT...LON 3942 8552 3937 8552 3930 8568 3932 8569
      3935 8569 3935 8570 3936 8571 3946 8560
      3945 8551
TIME...MOT...LOC 0211Z 233DEG 14KT 3941 8557

$$

PUMA

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 8:03 PM EDTSpecial Weather StatementINDJackson57 min
Mar 17, 9:00 PM EDTSpecial Weather StatementINDBartholomew45 min
Mar 17, 10:43 PM EDTSevere Thunderstorm WarningINDBoone, Hendricks, Marion32 min
Mar 17, 10:48 PM EDTSevere Thunderstorm WarningINDMarion27 min
Mar 17, 11:17 PM EDTSpecial Weather StatementINDHamilton, Marion58 min
Mar 17, 11:34 PM EDTSpecial Weather StatementINDHendricks41 min
Mar 18, 9:55 AM EDTSpecial Weather StatementINDFountain50 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2012Every 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.