Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 206, NWS Indianapolis, IN

August 9, 2012Montgomery County, Putnam County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 9, 2012, 7:27 PM EDT for Montgomery County, Putnam County, Indiana. It was in force for 33 min. 4 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: Aug 9, 2012, 7:27 PM EDT (23:27 UTC)
Expired: Aug 9, 2012, 8:00 PM EDT
In force: 33 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Montgomery County, IN, Putnam County, IN

The radar

The Indianapolis radar (KIND), 62 km from the middle of the area, began a volume at 23:28 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
Aug 9, 7:38 PM EDT	TSTM WND GST 61	3 Sw Crawfordsville, IN	TIME ESTIMATED...BASED ON RADAR.
Aug 9, 7:55 PM EDT	TSTM WND GST 60	Ladoga, IN	ESTIMATED 60 MPH WINDS ACCOMPANIED BY NICKEL SIZE HAIL.
Aug 9, 8:03 PM EDT	TSTM WND GST 60	Ladoga, IN	ESTIMATED 60 MPH WINDS ACCOMPANIED BY NICKEL SIZE HAIL.
Aug 9, 8:09 PM EDT	HAIL 1.75	Ladoga, IN	REPORTED VIA MEDIA FACEBOOK PAGE.

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
Aug 9, 5:02 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.5 hours before the alert went out and 144 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: 396 J/kg
Mixed-layer CIN: -236 J/kg
Mixed-layer LCL: 1480 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 88 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.

993 
WUUS53 KIND 092327
SVRIND
INC107-133-100000-
/O.NEW.KIND.SV.W.0206.120809T2327Z-120810T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
727 PM EDT THU AUG 9 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN MONTGOMERY COUNTY IN WEST CENTRAL INDIANA...
  NORTHEASTERN PUTNAM COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 800 PM EDT

* AT 723 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
  SOUTHWEST OF CRAWFORDSVILLE...AND MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEW MARKET...
  LADOGA...
  NEW ROSS...
  ROACHDALE...

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 42 AND 46.

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.

&&

LAT...LON 4004 8704 4002 8670 3982 8670 3985 8688
      3992 8709 3996 8709
TIME...MOT...LOC 2327Z 280DEG 18KT 3997 8701
WIND...HAIL 60MPH 1.00IN

$$

MRD/MK

2 follow-up statements

148 
WWUS53 KIND 092342
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
742 PM EDT THU AUG 9 2012

INC107-133-100000-
/O.CON.KIND.SV.W.0206.000000T0000Z-120810T0000Z/
MONTGOMERY-PUTNAM-
742 PM EDT THU AUG 9 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
MONTGOMERY AND NORTH CENTRAL PUTNAM COUNTIES UNTIL 800 PM EDT...

AT 737 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 7 MILES
SOUTH OF CRAWFORDSVILLE...MOVING EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  LADOGA...ROACHDALE AND NEW ROSS.

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.

&&

LAT...LON 3993 8701 3998 8700 4002 8693 4002 8670
      3982 8670 3985 8688
TIME...MOT...LOC 2341Z 290DEG 18KT 3995 8692
WIND...HAIL 60MPH 1.00IN

$$

MRD/MK

169 
WWUS53 KIND 092359
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
759 PM EDT THU AUG 9 2012

INC107-133-100009-
/O.EXP.KIND.SV.W.0206.000000T0000Z-120810T0000Z/
MONTGOMERY-PUTNAM-
759 PM EDT THU AUG 9 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MONTGOMERY AND NORTH 
CENTRAL PUTNAM COUNTIES HAS BEEN REISSUED...

PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER
INFORMATION.

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

LAT...LON 3993 8701 3998 8700 4002 8693 4002 8670
      3982 8670 3985 8688
TIME...MOT...LOC 2359Z 290DEG 18KT 3992 8681

$$

MRD/MK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 9:26 PM EDT	Severe Thunderstorm Warning	IND	Johnson, Marion, Shelby	33 min
Aug 8, 9:58 PM EDT	Areal Flood Advisory	IND	Hendricks, Marion	3 hr
Aug 8, 10:46 PM EDT	Special Weather Statement	IND	Rush	44 min
Aug 9, 2:11 AM EDT	Special Weather Statement	IND	Montgomery	34 min
Aug 9, 2:14 AM EDT	Special Weather Statement	IND	Vermillion	31 min
Aug 9, 2:27 AM EDT	Areal Flood Advisory	IND	Boone, Fountain, Montgomery, Parke, Putnam, Vermillion	3 hr
Aug 9, 2:46 AM EDT	Special Weather Statement	IND	Parke, Vermillion	44 min
Aug 9, 2:59 AM EDT	Severe Thunderstorm Warning	IND	Fountain, Parke, Vermillion	46 min
Aug 9, 3:33 AM EDT	Special Weather Statement	IND	Hamilton	42 min
Aug 9, 3:49 AM EDT	Areal Flood Warning	IND	Fountain, Montgomery, Parke, Vermillion	5 hr
Aug 9, 3:55 AM EDT	Special Weather Statement	IND	Hendricks, Parke, Putnam	50 min
Aug 9, 4:10 AM EDT	Special Weather Statement	IND	Owen	50 min
Aug 9, 4:27 AM EDT	Areal Flood Advisory	IND	Hamilton, Hendricks, Marion	4 hr
Aug 9, 4:42 AM EDT	Special Weather Statement	IND	Hendricks, Marion	48 min
Aug 9, 6:33 PM EDT	Special Weather Statement	IND	Fountain	27 min
Aug 9, 6:46 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke	44 min
Aug 9, 7:02 PM EDT	Tornado Warning	IND	Fountain, Montgomery, Parke, Putnam	28 min
Aug 9, 7:18 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Tippecanoe	42 min
Aug 9, 7:56 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hendricks, Montgomery, Putnam	34 min
Aug 9, 7:58 PM EDT	Severe Thunderstorm Warning	IND	Clinton, Montgomery, Tippecanoe	32 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.