Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 78, NWS Indianapolis, IN

March 30, 2012Decatur County, Rush County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 30, 2012, 6:56 PM EDT for Decatur County, Rush County, Indiana. It was in force for 21 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: Mar 30, 2012, 6:56 PM EDT (22:56 UTC)
Expired: Mar 30, 2012, 7:17 PM EDT
In force: 21 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Decatur County, IN, Rush County, IN

The radar

The Indianapolis radar (KIND), 78 km from the middle of the area, began a volume at 23:00 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
Mar 30, 3:24 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.9 hours before the alert went out and 147 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: 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.

268 
WUUS53 KIND 302256
SVRIND
INC031-139-302345-
/O.NEW.KIND.SV.W.0078.120330T2256Z-120330T2345Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

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

* UNTIL 745 PM EDT

* AT 650 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
  NORTHWEST OF GREENSBURG...OR 14 MILES SOUTHEAST OF SHELBYVILLE...
  AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GREENSBURG...
  MILLHOUSEN...
  CLARKSBURG...
  NEWPOINT...
  LAKE SANTEE...

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 126 AND 144.

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 3920 8542 3928 8569 3935 8569 3935 8563
      3942 8563 3948 8550 3956 8530 3927 8529
TIME...MOT...LOC 2256Z 276DEG 28KT 3943 8548
WIND...HAIL 60MPH 1.00IN

$$

KOCH

2 follow-up statements

986 
WWUS53 KIND 302308
SVSIND

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

INC031-139-302345-
/O.CON.KIND.SV.W.0078.000000T0000Z-120330T2345Z/
DECATUR-RUSH-
708 PM EDT FRI MAR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR DECATUR AND
SOUTHEASTERN RUSH COUNTIES UNTIL 745 PM EDT...

AT 704 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 6 MILES
NORTHEAST OF GREENSBURG...OR 13 MILES NORTHWEST OF BATESVILLE...
MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  CLARKSBURG...NEWPOINT AND LAKE SANTEE.

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.

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

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

&&

LAT...LON 3920 8542 3928 8569 3935 8568 3935 8563
      3943 8551 3951 8530 3927 8529
TIME...MOT...LOC 2308Z 276DEG 28KT 3941 8537
WIND...HAIL 60MPH 1.00IN

$$

RYAN

334 
WWUS53 KIND 302317
SVSIND

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

INC031-139-302327-
/O.CAN.KIND.SV.W.0078.000000T0000Z-120330T2345Z/
DECATUR-RUSH-
717 PM EDT FRI MAR 30 2012

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

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.  HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE
STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM EDT.

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

LAT...LON 3920 8542 3928 8569 3935 8568 3935 8563
      3943 8551 3951 8530 3927 8529
TIME...MOT...LOC 2317Z 276DEG 28KT 3938 8527

$$

RYAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 3:47 PM EDT	Severe Thunderstorm Warning	IND	Montgomery, Parke, Putnam	43 min
Mar 30, 4:18 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hamilton	18 min
Mar 30, 4:26 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hendricks, Marion, Montgomery, Putnam	49 min
Mar 30, 4:29 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Parke, Putnam	46 min
Mar 30, 4:41 PM EDT	Severe Thunderstorm Warning	IND	Clay, Owen, Parke, Putnam, Vigo	49 min
Mar 30, 4:46 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Hamilton, Madison, Tipton	44 min
Mar 30, 5:00 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Johnson, Marion, Morgan, Shelby	45 min
Mar 30, 5:13 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Morgan, Putnam	47 min
Mar 30, 5:14 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Hendricks, Marion, Shelby	46 min
Mar 30, 5:16 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Henry, Madison	44 min
Mar 30, 5:20 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Randolph	40 min
Mar 30, 5:22 PM EDT	Severe Thunderstorm Warning	IND	Randolph	11 min
Mar 30, 5:27 PM EDT	Severe Thunderstorm Warning	IND	Delaware	24 min
Mar 30, 5:38 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Randolph	52 min
Mar 30, 5:43 PM EDT	Severe Thunderstorm Warning	IND	Clay, Owen, Putnam	47 min
Mar 30, 5:45 PM EDT	Severe Thunderstorm Warning	IND	Johnson, Marion, Morgan, Shelby	45 min
Mar 30, 5:54 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Johnson, Morgan, Owen, Putnam and 1 more	51 min
Mar 30, 6:00 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Henry, Rush, Shelby	45 min
Mar 30, 6:04 PM EDT	Areal Flood Advisory	IND	Hendricks, Johnson, Marion, Morgan, Putnam	116 min
Mar 30, 6:16 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Decatur, Rush, Shelby	44 min
Mar 30, 6:35 PM EDT	Areal Flood Advisory	IND	Clay, Johnson, Morgan, Owen, Shelby	2 hr
Mar 30, 7:39 PM EDT	Severe Thunderstorm Warning	IND	Knox	15 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.