Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 35, NWS Indianapolis, IN

April 4, 20115 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 4, 2011, 5:16 AM EDT for 5 counties in Indiana. It was in force for 29 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, 5:16 AM EDT (09:16 UTC)
Expired: Apr 4, 2011, 5:45 AM EDT
In force: 29 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Boone County, IN, Clinton County, IN, Hamilton County, IN, Madison County, IN, Tipton County, IN

The radar

The Indianapolis radar (KIND), 69 km from the middle of the area, began a volume at 09:15 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 9.3 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2409 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 429 m²/s²
0-3 km storm-relative helicity: 944 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.

945 
WUUS53 KIND 040916
SVRIND
INC011-023-057-095-159-040945-
/O.NEW.KIND.SV.W.0035.110404T0916Z-110404T0945Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BOONE COUNTY IN CENTRAL INDIANA...
  SOUTHEASTERN CLINTON COUNTY IN CENTRAL INDIANA...
  NORTHERN HAMILTON COUNTY IN CENTRAL INDIANA...
  NORTHERN MADISON COUNTY IN CENTRAL INDIANA...
  TIPTON COUNTY IN CENTRAL INDIANA...

* UNTIL 545 AM EDT

* AT 511 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
  FRANKFORT...AND MOVING EAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ATLANTA...ARCADIA...TIPTON AND MORSE RESERVOIR AROUND 530 AM EDT...
  WINDFALL AROUND 535 AM EDT...
  FRANKTON AND ELWOOD AROUND 540 AM EDT...
  ORESTES AND ALEXANDRIA AROUND 545 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.

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 4039 8559 4014 8559 4011 8648 4033 8651
TIME...MOT...LOC 0916Z 267DEG 53KT 4021 8632
WIND...HAIL 60MPH <.75IN

$$
JH

1 follow-up statement

715 
WWUS53 KIND 040934
SVSIND

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

INC023-040944-
/O.CAN.KIND.SV.W.0035.000000T0000Z-110404T0945Z/
CLINTON-
534 AM EDT MON APR 4 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLINTON COUNTY IS
CANCELLED...

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

LAT...LON 4039 8559 4014 8560 4012 8634 4019 8630
      4019 8624 4027 8624 4035 8619
TIME...MOT...LOC 0934Z 267DEG 53KT 4022 8597

$$

INC011-057-095-159-040945-
/O.CON.KIND.SV.W.0035.000000T0000Z-110404T0945Z/
BOONE-HAMILTON-MADISON-TIPTON-
534 AM EDT MON APR 4 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
BOONE...NORTHERN HAMILTON...NORTHERN MADISON AND TIPTON COUNTIES
UNTIL 545 AM EDT...

AT 529 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 NEAR TIPTON...OR 18 MILES SOUTH OF
KOKOMO...MOVING EAST AT 60 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ELWOOD AROUND 540 AM EDT...
  FRANKTON...ORESTES AND ALEXANDRIA AROUND 545 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.

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 4039 8559 4014 8560 4012 8634 4019 8630
      4019 8624 4027 8624 4035 8619
TIME...MOT...LOC 0934Z 267DEG 53KT 4022 8597
WIND...HAIL 60MPH <.75IN

$$
JH

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, 5:31 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, 7:08 AM EDT	Severe Thunderstorm Warning	IND	Brown, Monroe, Morgan, Owen	35 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.