Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 66, NWS Indianapolis, IN

April 19, 20116 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 19, 2011, 10:53 PM EDT for 6 counties in Indiana. It was in force for 37 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 19, 2011, 10:53 PM EDT (02:53 UTC)
Expired: Apr 19, 2011, 11:30 PM EDT
In force: 37 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Clay County, IN, Morgan County, IN, Owen County, IN, Putnam County, IN, Sullivan County, IN, Vigo County, IN

The radar

The Indianapolis radar (KIND), 80 km from the middle of the area, began a volume at 02:54 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 19, 7:46 PM EDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.9 hours before the alert went out and 159 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: 2409 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 523 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 370 m²/s²
0-3 km storm-relative helicity: 547 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 24.4

Open this sounding in Storm Lab

The text

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

759 
WUUS53 KIND 200253
SVRIND
INC021-109-119-133-153-167-200330-
/O.NEW.KIND.SV.W.0066.110420T0253Z-110420T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1053 PM EDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL CLAY COUNTY IN WEST CENTRAL INDIANA...
  MORGAN COUNTY IN CENTRAL INDIANA...
  NORTHERN OWEN COUNTY IN WEST CENTRAL INDIANA...
  SOUTHERN PUTNAM COUNTY IN WEST CENTRAL INDIANA...
  NORTHERN SULLIVAN COUNTY IN SOUTHWEST INDIANA...
  SOUTHERN VIGO COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 1130 PM EDT/1030 PM CDT/

* AT 1045 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 9 MILES SOUTHWEST OF TERRE
  HAUTE TO MOORESVILLE...AND MOVING SOUTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MARTINSVILLE...
  BROOKLYN...
  WAVERLY...
  BETHANY...
  SALINE CITY...
  QUINCY...
  CENTERTON...
  BOWLING GREEN...
  DEVORE...
  CLAY CITY...
  PATRICKSBURG...
  PARAGON...
  GOSPORT...

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 3919 8762 3922 8759 3926 8761 3935 8759
      3963 8665 3961 8626 3939 8629 3933 8662
      3934 8670 3931 8670 3912 8763
TIME...MOT...LOC 0252Z 284DEG 46KT 3934 8737 3959 8621
WIND...HAIL 60MPH 1.00IN

$$

JK

1 follow-up statement

855 
WWUS53 KIND 200318
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1118 PM EDT TUE APR 19 2011

INC021-109-119-133-153-167-200330-
/O.CON.KIND.SV.W.0066.000000T0000Z-110420T0330Z/
CLAY-MORGAN-OWEN-PUTNAM-SULLIVAN-VIGO-
1118 PM EDT TUE APR 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
SULLIVAN...NORTHERN OWEN...CENTRAL CLAY...SOUTHERN VIGO...MORGAN AND
SOUTHERN PUTNAM COUNTIES UNTIL 1130 PM EDT/1030 PM CDT/...

AT 1117 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 13 MILES NORTH OF SULLIVAN TO 6
MILES WEST OF FRANKLIN...MOVING EAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  MARTINSVILLE...PATRICKSBURG...PARAGON...CLAY CITY AND GOSPORT.

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 3919 8762 3922 8759 3926 8761 3934 8760
      3937 8754 3963 8666 3961 8664 3961 8628
      3939 8630 3933 8663 3934 8672 3931 8672
      3913 8763
TIME...MOT...LOC 0318Z 284DEG 46KT 3927 8731 3951 8615
WIND...HAIL 60MPH 1.00IN

$$
JH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 8:54 PM EDT	Tornado Warning	IND	Fountain, Parke, Vermillion, Warren	51 min
Apr 19, 9:16 PM EDT	Tornado Warning	IND	Clay, Owen, Putnam, Vigo	59 min
Apr 19, 9:31 PM EDT	Tornado Warning	IND	Boone, Carroll, Clinton, Hendricks, Montgomery, Putnam and 1 more	44 min
Apr 19, 9:40 PM EDT	Severe Thunderstorm Warning	IND	Carroll	50 min
Apr 19, 9:55 PM EDT	Areal Flood Warning	IND	Clay, Parke, Vigo	15 hr
Apr 19, 10:07 PM EDT	Tornado Warning	IND	Boone, Clinton, Hamilton, Howard, Madison, Tipton	38 min
Apr 19, 10:13 PM EDT	Severe Thunderstorm Warning	IND	Clay, Owen, Putnam, Vigo	47 min
Apr 19, 10:15 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Hendricks, Marion, Shelby	45 min
Apr 19, 10:34 PM EDT	Flash Flood Warning	IND	Clay, Vigo	6 hr
Apr 19, 10:45 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Madison, Randolph	45 min
Apr 19, 10:59 PM EDT	Severe Thunderstorm Warning	IND	Clay, Daviess, Greene, Knox, Martin, Owen and 1 more	61 min
Apr 19, 11:00 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Henry, Rush, Shelby	45 min
Apr 19, 11:01 PM EDT	Flash Flood Warning	IND	Hendricks, Morgan, Putnam	6 hr
Apr 19, 11:30 PM EDT	Severe Thunderstorm Warning	IND	Clay, Morgan, Owen, Putnam	45 min
Apr 19, 11:30 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Randolph	45 min
Apr 19, 11:40 PM EDT	Flash Flood Warning	IND	Hamilton, Hancock, Hendricks, Johnson, Madison, Marion and 1 more	6 hr
Apr 19, 11:44 PM EDT	Severe Thunderstorm Warning	IND	Brown, Greene, Jackson, Lawrence, Martin, Monroe and 2 more	31 min
Apr 19, 11:54 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Marion	31 min
Apr 20, 12:13 AM EDT	Severe Thunderstorm Warning	IND	Johnson, Shelby	34 min
Apr 20, 12:16 AM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Decatur, Jackson, Jennings	44 min
Apr 20, 12:21 AM EDT	Flash Flood Warning	IND	Bartholomew, Brown, Jackson, Jennings, Johnson, Lawrence and 3 more	4 hr
Apr 20, 12:25 AM EDT	Severe Thunderstorm Warning	IND	Decatur, Rush	40 min
Apr 20, 7:31 AM EDT	Areal Flood Warning	IND	Clay, Parke, Vigo	24 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2011 Every severe thunderstorm warning in 2011

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.