Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 74, NWS Indianapolis, IN

March 30, 20124 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 30, 2012, 5:45 PM EDT for 4 counties in Indiana. It was in force for 45 min. 11 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 30, 2012, 5:45 PM EDT (21:45 UTC)
Expired
Mar 30, 2012, 6:30 PM EDT
In force
45 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Johnson County, IN, Marion County, IN, Morgan County, IN, Shelby County, IN

The radar

The Indianapolis radar (KIND), 26 km from the middle of the area, began a volume at 21:45 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.

What was reported inside it

TimeReportWhereRemark
Mar 30, 5:50 PM EDTHAIL 0.75Greenwood, IN
Mar 30, 5:55 PM EDTHAIL 0.255 W Greenwood, IN
Mar 30, 5:57 PM EDTHAIL 0.56 Nw New Whiteland, IN800N AND 550W
Mar 30, 5:58 PM EDTHAIL 0.752 S Greenwood, IN
Mar 30, 6:02 PM EDTHAIL 0.5Franklin, IN
Mar 30, 6:05 PM EDTTSTM WND DMGFranklin, INSMALL LIMBS DOWN
Mar 30, 6:05 PM EDTTSTM WND GST 47Franklin, IN
Mar 30, 6:05 PM EDTHAIL 0.7Franklin, INSMALL LIMBS DOWN
Mar 30, 6:05 PM EDTNON-TSTM WND DMGFranklin, INSMALL LIMBS DOWN
Mar 30, 6:27 PM EDTHAIL 0.25Franklin, IN
Mar 30, 6:29 PM EDTHAIL 0.25Shelbyville, 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.

IssuedProductOfficeLasted
Mar 30, 3:24 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.8 hours before the alert went out and 191 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 12:00Z on 2012-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2012-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 249 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
825 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
249 m²/s²
0-3 km storm-relative helicity
364 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.

818 
WUUS53 KIND 302145
SVRIND
INC081-097-109-145-302230-
/O.NEW.KIND.SV.W.0074.120330T2145Z-120330T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
545 PM EDT FRI MAR 30 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN JOHNSON COUNTY IN CENTRAL INDIANA...
  SOUTHEASTERN MARION COUNTY IN CENTRAL INDIANA...
  NORTHERN MORGAN COUNTY IN CENTRAL INDIANA...
  NORTHWESTERN SHELBY COUNTY IN CENTRAL INDIANA...

* UNTIL 630 PM EDT

* AT 536 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM BEECH GROVE TO GREENWOOD
  TO 8 MILES SOUTHWEST OF MOORESVILLE...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHELBYVILLE...
  FRANKLIN...
  BETHANY...
  BROOKLYN...
  WAVERLY...
  NEW WHITELAND...
  WHITELAND...
  FAIRLAND...
  BOGGSTOWN...
  BARGERSVILLE...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 90 AND 103.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 98 AND 113.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A
SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3965 8575 3945 8579 3955 8656 3963 8620
      3970 8601
TIME...MOT...LOC 2145Z 282DEG 26KT 3968 8592 3961 8608
          3955 8642
WIND...HAIL 60MPH 1.50IN

$$

RYAN
2 follow-up statements
927 
WWUS53 KIND 302202
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
602 PM EDT FRI MAR 30 2012

INC081-097-109-145-302230-
/O.CON.KIND.SV.W.0074.000000T0000Z-120330T2230Z/
JOHNSON-MARION-MORGAN-SHELBY-
602 PM EDT FRI MAR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
JOHNSON...SOUTHEASTERN MARION...NORTHERN MORGAN AND NORTHWESTERN
SHELBY COUNTIES UNTIL 630 PM EDT...

AT 555 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 10 MILES EAST OF BEECH GROVE TO 7
MILES EAST OF GREENWOOD TO 6 MILES SOUTH OF MOORESVILLE...MOVING EAST
AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  SHELBYVILLE...FRANKLIN...FAIRLAND...BARGERSVILLE AND BOGGSTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THESE STORMS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN INDIANAPOLIS.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3965 8575 3945 8579 3955 8656 3963 8620
      3970 8601
TIME...MOT...LOC 2202Z 282DEG 26KT 3967 8585 3958 8592
          3952 8626
WIND...HAIL 60MPH 1.50IN

$$

RYAN
986 
WWUS53 KIND 302214
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
614 PM EDT FRI MAR 30 2012

INC097-302224-
/O.CAN.KIND.SV.W.0074.000000T0000Z-120330T2230Z/
MARION-
614 PM EDT FRI MAR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MARION COUNTY IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN INDIANAPOLIS.

LAT...LON 3960 8614 3966 8584 3965 8575 3945 8579
      3955 8656
TIME...MOT...LOC 2214Z 284DEG 28KT 3963 8574 3952 8583
          3947 8603

$$

INC081-109-145-302230-
/O.CON.KIND.SV.W.0074.000000T0000Z-120330T2230Z/
JOHNSON-MORGAN-SHELBY-
614 PM EDT FRI MAR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
JOHNSON...NORTHERN MORGAN AND CENTRAL SHELBY COUNTIES UNTIL 630 PM
EDT...

AT 604 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 9 MILES NORTH OF SHELBYVILLE TO 7
MILES NORTHEAST OF FRANKLIN TO FRANKLIN...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  SHELBYVILLE.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN INDIANAPOLIS.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3960 8614 3966 8584 3965 8575 3945 8579
      3955 8656
TIME...MOT...LOC 2214Z 284DEG 28KT 3963 8574 3952 8583
          3947 8603
WIND...HAIL 60MPH 1.00IN

$$

RYAN

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 3:47 PM EDTSevere Thunderstorm WarningINDMontgomery, Parke, Putnam43 min
Mar 30, 4:18 PM EDTSevere Thunderstorm WarningINDBoone, Hamilton18 min
Mar 30, 4:26 PM EDTSevere Thunderstorm WarningINDBoone, Hendricks, Marion, Montgomery, Putnam49 min
Mar 30, 4:29 PM EDTSevere Thunderstorm WarningINDHendricks, Parke, Putnam46 min
Mar 30, 4:41 PM EDTSevere Thunderstorm WarningINDClay, Owen, Parke, Putnam, Vigo49 min
Mar 30, 4:46 PM EDTSevere Thunderstorm WarningINDDelaware, Hamilton, Madison, Tipton44 min
Mar 30, 5:00 PM EDTSevere Thunderstorm WarningINDHendricks, Johnson, Marion, Morgan, Shelby45 min
Mar 30, 5:13 PM EDTSevere Thunderstorm WarningINDHendricks, Morgan, Putnam47 min
Mar 30, 5:14 PM EDTSevere Thunderstorm WarningINDHancock, Hendricks, Marion, Shelby46 min
Mar 30, 5:16 PM EDTSevere Thunderstorm WarningINDHamilton, Hancock, Henry, Madison44 min
Mar 30, 5:20 PM EDTSevere Thunderstorm WarningINDDelaware, Randolph40 min
Mar 30, 5:22 PM EDTSevere Thunderstorm WarningINDRandolph11 min
Mar 30, 5:27 PM EDTSevere Thunderstorm WarningINDDelaware24 min
Mar 30, 5:38 PM EDTSevere Thunderstorm WarningINDDelaware, Randolph52 min
Mar 30, 5:43 PM EDTSevere Thunderstorm WarningINDClay, Owen, Putnam47 min
Mar 30, 5:54 PM EDTSevere Thunderstorm WarningINDBartholomew, Brown, Johnson, Morgan, Owen, Putnam and 1 more51 min
Mar 30, 6:00 PM EDTSevere Thunderstorm WarningINDHancock, Henry, Rush, Shelby45 min
Mar 30, 6:04 PM EDTAreal Flood AdvisoryINDHendricks, Johnson, Marion, Morgan, Putnam116 min
Mar 30, 6:16 PM EDTSevere Thunderstorm WarningINDBartholomew, Decatur, Rush, Shelby44 min
Mar 30, 6:35 PM EDTAreal Flood AdvisoryINDClay, Johnson, Morgan, Owen, Shelby2 hr
Mar 30, 6:56 PM EDTSevere Thunderstorm WarningINDDecatur, Rush21 min
Mar 30, 7:39 PM EDTSevere Thunderstorm WarningINDKnox15 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.