Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 84, NWS Indianapolis, IN

April 1, 2012Rush County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 1, 2012, 10:44 PM EDT for Rush County, Indiana. It was in force for 31 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: Apr 1, 2012, 10:44 PM EDT (02:44 UTC)
Expired: Apr 1, 2012, 11:15 PM EDT
In force: 31 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

County Rush County, IN

The radar

The Indianapolis radar (KIND), 71 km from the middle of the area, began a volume at 02:48 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
Apr 1, 10:03 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.7 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: 663 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 943 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 267 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 6.4

Open this sounding in Storm Lab

The text

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

780 
WUUS53 KIND 020244
SVRIND
INC139-020315-
/O.NEW.KIND.SV.W.0084.120402T0244Z-120402T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1044 PM EDT SUN APR 1 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RUSH COUNTY IN CENTRAL INDIANA...

* UNTIL 1115 PM EDT

* AT 1039 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
  THUNDERSTORM PRODUCING PING PONG BALL SIZE HAIL.  THIS STORM WAS
  LOCATED 10 MILES SOUTHEAST OF GREENFIELD...OR 15 MILES NORTHEAST OF
  SHELBYVILLE...AND MOVING SOUTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RUSHVILLE...
  ARLINGTON...
  MANILLA...
  MOSCOW...
  NEW SALEM...
  MILROY...

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.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3946 8563 3972 8563 3977 8553 3960 8530
      3955 8529 3945 8530
TIME...MOT...LOC 0244Z 333DEG 25KT 3968 8559
WIND...HAIL <50MPH 1.50IN

$$

AB/RYAN

1 follow-up statement

335 
WWUS53 KIND 020305
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1105 PM EDT SUN APR 1 2012

INC139-020315-
/O.CON.KIND.SV.W.0084.000000T0000Z-120402T0315Z/
RUSH-
1105 PM EDT SUN APR 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN RUSH
COUNTY UNTIL 1115 PM EDT...

AT 1102 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS LOCATED 5
MILES SOUTHWEST OF RUSHVILLE...OR 14 MILES EAST OF SHELBYVILLE...
MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  MOSCOW...NEW SALEM AND MILROY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS 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.

&&

LAT...LON 3945 8530 3945 8531 3946 8563 3959 8562
      3963 8542 3960 8530 3956 8529 3953 8529
TIME...MOT...LOC 0305Z 333DEG 25KT 3955 8551
WIND...HAIL <50MPH 1.00IN

$$

RYAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 1, 9:28 PM EDT	Special Weather Statement	IND	Delaware	47 min
Apr 1, 9:32 PM EDT	Special Weather Statement	IND	Hamilton	43 min
Apr 1, 9:42 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Henry, Madison	33 min
Apr 1, 9:52 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hamilton, Marion	23 min
Apr 1, 10:14 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Henry, Rush	31 min
Apr 1, 10:16 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Marion, Shelby	29 min
Apr 1, 10:45 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Marion, Shelby	30 min
Apr 1, 11:09 PM EDT	Severe Thunderstorm Warning	IND	Decatur, Rush	36 min
Apr 1, 11:14 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Decatur, Shelby	46 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.