Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 41, NWS Indianapolis, IN

April 4, 20114 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 4, 2011, 7:08 AM EDT for 4 counties in Indiana. It was in force for 35 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 4, 2011, 7:08 AM EDT (11:08 UTC)
Expired: Apr 4, 2011, 7:43 AM EDT
In force: 35 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Brown County, IN, Monroe County, IN, Morgan County, IN, Owen County, IN

The radar

The Indianapolis radar (KIND), 60 km from the middle of the area, began a volume at 11:11 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 4, 5:30 AM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 11.1 hours before the alert went out and 206 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: 191 J/kg
Mixed-layer CIN: -426 J/kg
Mixed-layer LCL: 2183 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 363 m²/s²
0-3 km storm-relative helicity: 578 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.

783 
WUUS53 KIND 041108
SVRIND
INC013-105-109-119-041200-
/O.NEW.KIND.SV.W.0041.110404T1108Z-110404T1200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
708 AM EDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BROWN COUNTY IN SOUTH CENTRAL INDIANA...
  MONROE COUNTY IN SOUTH CENTRAL INDIANA...
  SOUTHERN MORGAN COUNTY IN CENTRAL INDIANA...
  SOUTHEASTERN OWEN COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 800 AM EDT

* AT 702 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES SOUTH OF SPENCER...OR 10
  MILES WEST OF BLOOMINGTON...AND MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  UNIONVILLE...YELLOWWOOD LAKE...WOODVILLE HILLS AND ELKINSVILLE
  AROUND 720 AM EDT...
  LAKE LEMON AND STORY AROUND 725 AM EDT...
  BEANBLOSSOM...HELMSBURG...NASHVILLE AND GNAW BONE AROUND 730 AM
  EDT...
  SPEARSVILLE AROUND 735 AM EDT...

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 3908 8670 3917 8670 3917 8676 3928 8683
      3933 8667 3936 8626 3933 8626 3934 8620
      3909 8611 3901 8666
TIME...MOT...LOC 1108Z 237DEG 45KT 3921 8663
WIND...HAIL 60MPH <.75IN

$$
JK

3 follow-up statements

565 
WWUS53 KIND 041123
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
723 AM EDT MON APR 4 2011

INC119-041133-
/O.CAN.KIND.SV.W.0041.000000T0000Z-110404T1200Z/
OWEN-
723 AM EDT MON APR 4 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL OWEN COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3933 8667 3936 8626 3933 8626 3934 8620
      3909 8611 3901 8666
TIME...MOT...LOC 1123Z 237DEG 45KT 3931 8642

$$

INC013-105-109-041200-
/O.CON.KIND.SV.W.0041.000000T0000Z-110404T1200Z/
BROWN-MONROE-MORGAN-
723 AM EDT MON APR 4 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR MONROE...BROWN
AND SOUTHEASTERN MORGAN COUNTIES UNTIL 800 AM EDT...

AT 715 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED 6 MILES NORTH OF BLOOMINGTON...MOVING
NORTHEAST AT 50 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BEANBLOSSOM...HELMSBURG...NASHVILLE AND GNAW BONE AROUND 730 AM
  EDT...

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 3933 8667 3936 8626 3933 8626 3934 8620
      3909 8611 3901 8666
TIME...MOT...LOC 1123Z 237DEG 45KT 3931 8642
WIND...HAIL 60MPH <.75IN

$$
JK

410 
WWUS53 KIND 041137
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
737 AM EDT MON APR 4 2011

INC105-109-041147-
/O.CAN.KIND.SV.W.0041.000000T0000Z-110404T1200Z/
MONROE-MORGAN-
737 AM EDT MON APR 4 2011

...THE SEVERE THUNDERSTORM WARNING FOR MONROE AND SOUTHEASTERN MORGAN
COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED THE WARNED AREA.

LAT...LON 3920 8629 3933 8634 3934 8632 3933 8626
      3934 8620 3929 8618 3921 8615
TIME...MOT...LOC 1137Z 237DEG 45KT 3940 8623

$$

INC013-041200-
/O.CON.KIND.SV.W.0041.000000T0000Z-110404T1200Z/
BROWN-
737 AM EDT MON APR 4 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
BROWN COUNTY UNTIL 800 AM EDT...

AT 729 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED 7 MILES SOUTHEAST OF MARTINSVILLE...
OR 16 MILES NORTHEAST OF BLOOMINGTON...MOVING NORTHEAST AT 50 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTH
CENTRAL BROWN 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.

&&

LAT...LON 3920 8629 3933 8634 3934 8632 3933 8626
      3934 8620 3929 8618 3921 8615
TIME...MOT...LOC 1137Z 237DEG 45KT 3940 8623
WIND...HAIL 60MPH <.75IN

$$

JK

507 
WWUS53 KIND 041143
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
743 AM EDT MON APR 4 2011

INC013-041153-
/O.CAN.KIND.SV.W.0041.000000T0000Z-110404T1200Z/
BROWN-
743 AM EDT MON APR 4 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BROWN COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 3920 8629 3933 8634 3934 8632 3933 8626
      3934 8620 3929 8618 3921 8615
TIME...MOT...LOC 1143Z 237DEG 45KT 3944 8615

$$

JK

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 4:12 AM EDT	Special Weather Statement	IND	Fountain, Tippecanoe, Warren	33 min
Apr 4, 4:52 AM EDT	Special Weather Statement	IND	Boone, Carroll, Clinton, Howard, Montgomery, Tipton	23 min
Apr 4, 5:04 AM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Howard, Tipton	26 min
Apr 4, 5:16 AM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Hamilton, Madison, Tipton	29 min
Apr 4, 5:31 AM EDT	Severe Thunderstorm Warning	IND	Howard	14 min
Apr 4, 5:47 AM EDT	Severe Thunderstorm Warning	IND	Delaware, Madison, Tipton	28 min
Apr 4, 6:12 AM EDT	Severe Thunderstorm Warning	IND	Delaware	19 min
Apr 4, 6:27 AM EDT	Severe Thunderstorm Warning	IND	Sullivan, Vigo	32 min
Apr 4, 7:03 AM EDT	Severe Thunderstorm Warning	IND	Hendricks, Marion, Morgan, Owen, Putnam	42 min
Apr 4, 7:26 AM EDT	Severe Thunderstorm Warning	IND	Brown, Johnson, Morgan	23 min
Apr 4, 7:41 AM EDT	Severe Thunderstorm Warning	IND	Shelby	22 min
Apr 4, 7:56 AM EDT	Severe Thunderstorm Warning	IND	Rush, Shelby	28 min
Apr 4, 7:59 AM EDT	Severe Thunderstorm Warning	IND	Sullivan, Vigo	24 min
Apr 4, 10:23 AM EDT	Special Weather Statement	IND	Brown, Monroe	37 min
Apr 4, 10:35 AM EDT	Special Weather Statement	IND	Daviess, Knox, Martin	40 min
Apr 4, 12:08 PM EDT	Special Weather Statement	IND	Bartholomew, Decatur, Jackson, Jennings, Lawrence, Martin	37 min
Apr 4, 12:59 PM EDT	Areal Flood Advisory	IND	Bartholomew, Brown, Clay, Greene, Hancock, Henry and 7 more	11 hr
Apr 4, 6:14 PM EDT	River Flood Warning	IND	Shelby	43 hr
Apr 4, 6:14 PM EDT	River Flood Warning	IND	Jackson, Lawrence, Washington	5 days

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.