Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 18, NWS Indianapolis, IN

March 2, 20129 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 2, 2012, 10:46 AM EST for 9 counties in Indiana. It was in force for 44 min. 12 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 2, 2012, 10:46 AM EST (15:46 UTC)
Expired: Mar 2, 2012, 11:30 AM EST
In force: 44 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Boone County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Morgan County, IN, Tipton County, IN

The radar

The Indianapolis radar (KIND), 44 km from the middle of the area, began a volume at 15:47 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 2, 10:56 AM EST	HAIL 1.25	1 S Indianapolis, IN
Mar 2, 10:58 AM EST	HAIL 0.25	Indianapolis, IN
Mar 2, 10:58 AM EST	HAIL 0.25	Indianapolis, IN
Mar 2, 10:58 AM EST	HAIL 1.25	Indianapolis, IN
Mar 2, 10:58 AM EST	HAIL 1.75	Indianapolis, IN	HAIL MEASURED AT I-465 AND HARDING
Mar 2, 11:01 AM EST	HAIL 0.5	Indianapolis, IN	HAIL OBSERVED AT I-465 AND MANN ROAD
Mar 2, 11:03 AM EST	HAIL 0.25	Indianapolis, IN	WASHINGTON STREET AND HIGHSCHOOL ROAD
Mar 2, 11:04 AM EST	HAIL 0.75	5 Se Indianapolis, IN
Mar 2, 11:07 AM EST	HAIL 1	Indianapolis, IN	EMERSON AVENUE AND SOUTHEASTERN AVENUE
Mar 2, 11:10 AM EST	HAIL 1.25	Indianapolis, IN	HAIL MEASURED AT THE UNIVERSITY OF INDIANAPOLIS
Mar 2, 11:11 AM EST	HAIL 0.25	Indianapolis, IN	35TH AND SHADELAND
Mar 2, 11:30 AM EST	HAIL 1.5	2 E Indianapolis Int'L, 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 2, 6:52 AM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 3.8 hours before the alert went out and 209 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1770 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 163 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.

236 
WUUS53 KIND 021546
SVRIND
INC011-057-059-063-081-095-097-109-159-021630-
/O.NEW.KIND.SV.W.0018.120302T1546Z-120302T1630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1046 AM EST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BOONE COUNTY IN CENTRAL INDIANA...
  HAMILTON COUNTY IN CENTRAL INDIANA...
  HANCOCK COUNTY IN CENTRAL INDIANA...
  NORTHEASTERN HENDRICKS COUNTY IN CENTRAL INDIANA...
  NORTHWESTERN JOHNSON COUNTY IN CENTRAL INDIANA...
  SOUTHWESTERN MADISON COUNTY IN CENTRAL INDIANA...
  MARION COUNTY IN CENTRAL INDIANA...
  NORTHEASTERN MORGAN COUNTY IN CENTRAL INDIANA...
  SOUTHEASTERN TIPTON COUNTY IN CENTRAL INDIANA...

* UNTIL 1130 AM EST

* AT 1042 AM EST...EMERGENCY MANAGEMENT REPORTED QUARTER SIZE HAIL 
IN PLAINFIELD. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 
7 MILES SOUTHWEST OF LEBANON TO MOORESVILLE...AND MOVING NORTHEAST 
AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  INDIANAPOLIS...
  BROWNSBURG...
  LEBANON...
  SPEEDWAY...
  SOUTHPORT...
  ZIONSVILLE...
  BEECH GROVE...
  CARMEL...
  LAWRENCE...
  FISHERS...
  NOBLESVILLE...
  GREENFIELD...
  TIPTON...
  INDIANAPOLIS INT'L AIRPORT...
  CLERMONT...
  ULEN...
  EAGLE CREEK RESERVOIR...
  HOMECROFT...
  WHITESTOWN...
  MONUMENT CIRCLE...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 102 AND 140.

THIS INCLUDES INTERSTATE 69 BETWEEN MILE MARKERS 0 AND 22.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 67 AND 110.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 58 AND 98.

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 4040 8595 3984 8560 3955 8628 3998 8661
      4018 8629 4018 8624 4021 8624
TIME...MOT...LOC 1546Z 241DEG 47KT 4002 8653 3962 8625
WIND...HAIL <50MPH 1.00IN

$$

HOMANN/SMF

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 3:30 AM EST	Wind Advisory	IND	Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more	22 hr
Mar 2, 5:58 AM EST	Special Weather Statement	IND	Monroe	47 min
Mar 2, 6:43 AM EST	Special Weather Statement	IND	Johnson, Shelby	47 min
Mar 2, 7:04 AM EST	Special Weather Statement	IND	Hancock	41 min
Mar 2, 7:30 AM EST	Special Weather Statement	IND	Rush	45 min
Mar 2, 7:39 AM EST	Special Weather Statement	IND	Delaware	51 min
Mar 2, 8:06 AM EST	Special Weather Statement	IND	Randolph	39 min
Mar 2, 8:32 AM EST	Special Weather Statement	IND	Henry, Randolph	58 min
Mar 2, 9:31 AM EST	Severe Thunderstorm Warning	IND	Clay, Parke, Vermillion, Vigo	44 min
Mar 2, 9:58 AM EST	Severe Thunderstorm Warning	IND	Clay, Fountain, Montgomery, Parke, Putnam	47 min
Mar 2, 10:25 AM EST	Severe Thunderstorm Warning	IND	Boone, Hendricks, Montgomery, Morgan, Putnam	50 min
Mar 2, 10:29 AM EST	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Jackson, Lawrence	31 min
Mar 2, 11:01 AM EST	Severe Thunderstorm Warning	IND	Boone, Hamilton, Hancock, Hendricks, Johnson, Madison and 5 more	44 min
Mar 2, 1:01 PM EST	Severe Thunderstorm Warning	IND	Howard	29 min
Mar 2, 1:32 PM EST	Severe Thunderstorm Warning	IND	Boone, Fountain, Hendricks, Montgomery, Parke, Putnam	43 min
Mar 2, 1:34 PM EST	Severe Thunderstorm Warning	IND	Clay, Parke, Putnam, Vigo	41 min
Mar 2, 1:51 PM EST	Severe Thunderstorm Warning	IND	Clay, Hendricks, Montgomery, Parke, Putnam	24 min
Mar 2, 2:09 PM EST	Severe Thunderstorm Warning	IND	Hendricks, Montgomery, Morgan, Owen, Parke, Putnam	36 min
Mar 2, 2:11 PM EST	Tornado Warning	IND	Boone, Hamilton	34 min
Mar 2, 2:22 PM EST	Severe Thunderstorm Warning	IND	Jackson, Lawrence, Martin, Monroe	23 min
Mar 2, 2:34 PM EST	Severe Thunderstorm Warning	IND	Boone, Hamilton, Hancock, Hendricks, Johnson, Madison and 2 more	41 min
Mar 2, 2:56 PM EST	Severe Thunderstorm Warning	IND	Delaware, Hamilton, Madison, Tipton	34 min
Mar 2, 3:12 PM EST	Severe Thunderstorm Warning	IND	Hancock, Henry, Randolph, Rush, Shelby	33 min
Mar 2, 3:39 PM EST	Severe Thunderstorm Warning	IND	Decatur, Jennings	21 min
Mar 2, 3:44 PM EST	Tornado Warning	IND	Jennings	16 min
Mar 2, 3:47 PM EST	Severe Thunderstorm Warning	IND	Rush	13 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.