Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 216, NWS Indianapolis, IN

August 9, 2012Decatur County, Rush County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 9, 2012, 9:00 PM EDT for Decatur County, Rush County, Indiana. It was in force for 14 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: Aug 9, 2012, 9:00 PM EDT (01:00 UTC)
Expired: Aug 9, 2012, 9:14 PM EDT
In force: 14 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Decatur County, IN, Rush County, IN

The radar

The Indianapolis radar (KIND), 84 km from the middle of the area, began a volume at 01:01 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 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, 8:40 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.0 hours before the alert went out and 133 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: 339 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

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

639 
WUUS53 KIND 100100
SVRIND
INC031-139-100130-
/O.NEW.KIND.SV.W.0216.120810T0100Z-120810T0130Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN DECATUR COUNTY IN CENTRAL INDIANA...
  SOUTHEASTERN RUSH COUNTY IN CENTRAL INDIANA...

* UNTIL 930 PM EDT

* AT 856 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 10 MILES SOUTHEAST OF RUSHVILLE...OR 15 MILES NORTHWEST OF
  BATESVILLE...AND MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME SOUTHEASTERN RUSH COUNTY.

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 3939 8538 3950 8548 3959 8530 3945 8529
      3941 8529
TIME...MOT...LOC 0100Z 244DEG 24KT 3950 8533
WIND...HAIL 60MPH 1.50IN

$$

MRD/MK

1 follow-up statement

754 
WWUS53 KIND 100114
SVSIND

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

INC031-139-100125-
/O.CAN.KIND.SV.W.0216.000000T0000Z-120810T0130Z/
DECATUR-RUSH-
914 PM EDT THU AUG 9 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DECATUR AND
SOUTHEASTERN RUSH COUNTIES IS CANCELLED...

THE STORM 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 3939 8538 3950 8548 3959 8530 3945 8529
      3941 8529
TIME...MOT...LOC 0115Z 244DEG 24KT 3954 8521

$$

KOCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 8:24 PM EDT	Severe Thunderstorm Warning	IND	Decatur, Rush	36 min
Aug 9, 8:28 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hendricks	32 min
Aug 9, 8:30 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Tippecanoe	30 min
Aug 9, 8:48 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Tippecanoe, Warren	42 min
Aug 9, 8:52 PM EDT	Severe Thunderstorm Warning	IND	Clay, Morgan, Owen, Parke, Putnam	38 min
Aug 9, 8:55 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Marion	35 min
Aug 9, 8:58 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Howard	47 min
Aug 9, 9:06 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Tippecanoe	39 min
Aug 9, 9:26 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Tippecanoe, Warren	49 min
Aug 9, 9:28 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Hendricks, Johnson, Marion, Morgan, Shelby	47 min
Aug 9, 9:58 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Johnson, Monroe, Morgan, Shelby	62 min
Aug 9, 10:16 PM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Montgomery, Tippecanoe	29 min
Aug 9, 10:21 PM EDT	Tornado Warning	IND	Johnson, Shelby	26 min
Aug 9, 10:32 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Rush, Shelby	43 min
Aug 9, 10:53 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Decatur, Rush, Shelby	49 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.