Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 50, NWS Indianapolis, IN

April 9, 20114 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 9, 2011, 9:09 AM EDT for 4 counties in Indiana. It was in force for 51 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 9, 2011, 9:09 AM EDT (13:09 UTC)
Expired: Apr 9, 2011, 10:00 AM EDT
In force: 51 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

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

The radar

The Indianapolis radar (KIND), 74 km from the middle of the area, began a volume at 13:10 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

Lincoln, IL (KILX), launched 12:00Z, 1.2 hours before the alert went out and 150 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: 1370 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 151 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.

168 
WUUS53 KIND 091309
SVRIND
INC021-119-133-167-091400-
/O.NEW.KIND.SV.W.0050.110409T1309Z-110409T1400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
909 AM EDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLAY COUNTY IN WEST CENTRAL INDIANA...
  NORTHWESTERN OWEN COUNTY IN WEST CENTRAL INDIANA...
  SOUTHWESTERN PUTNAM COUNTY IN WEST CENTRAL INDIANA...
  EAST CENTRAL VIGO COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 1000 AM EDT

* AT 905 AM 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 11
  MILES NORTHEAST OF SULLIVAN...OR 16 MILES SOUTH OF TERRE HAUTE...
  AND MOVING NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CLAY CITY...RILEY AND COAL CITY AROUND 920 AM EDT...
  SALINE CITY AND CORY AROUND 925 AM EDT...
  CENTER POINT...BOWLING GREEN...STAUNTON AND PATRICKSBURG AROUND 935
  AM EDT...
  BRAZIL AROUND 940 AM EDT...
  HARMONY AND KNIGHTSVILLE AROUND 945 AM EDT...
  CARBON AROUND 950 AM EDT...
  REELSVILLE AND CAGLES MILL LAKE AROUND 955 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 3961 8712 3961 8709 3946 8673 3917 8713
      3937 8733
TIME...MOT...LOC 1309Z 224DEG 30KT 3927 8728
WIND...HAIL 60MPH 1.00IN

$$

AB/JP

4 follow-up statements

584 
WWUS53 KIND 091329
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
929 AM EDT SAT APR 9 2011

INC021-119-133-167-091400-
/O.CON.KIND.SV.W.0050.000000T0000Z-110409T1400Z/
CLAY-OWEN-PUTNAM-VIGO-
929 AM EDT SAT APR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
OWEN...CLAY...EAST CENTRAL VIGO AND SOUTHWESTERN PUTNAM COUNTIES
UNTIL 1000 AM EDT...

AT 923 AM 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 15 MILES
SOUTH OF BRAZIL...OR 18 MILES SOUTHEAST OF TERRE HAUTE...MOVING
NORTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BOWLING GREEN...CENTER POINT...PATRICKSBURG AND STAUNTON AROUND 935
  AM EDT...
  KNIGHTSVILLE AND BRAZIL AROUND 940 AM EDT...
  HARMONY AND CARBON AROUND 945 AM EDT...
  CAGLES MILL LAKE AND REELSVILLE AROUND 950 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 3961 8712 3961 8709 3946 8673 3917 8713
      3937 8733
TIME...MOT...LOC 1328Z 228DEG 33KT 3933 8709
WIND...HAIL 60MPH 1.00IN

$$

AB/JP

258 
WWUS53 KIND 091341 RRA
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
941 AM EDT SAT APR 9 2011

INC167-091350-
/O.CAN.KIND.SV.W.0050.000000T0000Z-110409T1400Z/
VIGO-
941 AM EDT SAT APR 9 2011

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

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

LAT...LON 3937 8725 3961 8712 3961 8709 3946 8673
      3917 8713
TIME...MOT...LOC 1340Z 228DEG 33KT 3940 8698

$$

INC021-119-133-091400-
/O.CON.KIND.SV.W.0050.000000T0000Z-110409T1400Z/
CLAY-OWEN-PUTNAM-
941 AM EDT SAT APR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
OWEN...CLAY AND SOUTHWESTERN PUTNAM COUNTIES UNTIL 1000 AM EDT...

AT 937 AM 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 11 MILES
SOUTHEAST OF BRAZIL...OR 21 MILES EAST OF TERRE HAUTE...MOVING
NORTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HARMONY...KNIGHTSVILLE AND CARBON AROUND 945 AM EDT...
  CAGLES MILL LAKE AND REELSVILLE AROUND 950 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 3937 8725 3961 8712 3961 8709 3946 8673
      3917 8713
TIME...MOT...LOC 1340Z 228DEG 33KT 3940 8698
WIND...HAIL 60MPH 1.00IN

$$

AB/JP

605 
WWUS53 KIND 091353
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
953 AM EDT SAT APR 9 2011

INC021-119-133-091400-
/O.CON.KIND.SV.W.0050.000000T0000Z-110409T1400Z/
CLAY-OWEN-PUTNAM-
953 AM EDT SAT APR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
OWEN...EAST CENTRAL CLAY AND SOUTHWESTERN PUTNAM COUNTIES UNTIL 1000
AM EDT...

AT 951 AM 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 12 MILES
NORTHWEST OF SPENCER...OR 25 MILES EAST OF TERRE HAUTE...MOVING
NORTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EAST
CENTRAL CLAY...NORTHWESTERN OWEN AND SOUTHWESTERN PUTNAM COUNTIES.

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 3939 8713 3955 8696 3946 8673 3926 8700
TIME...MOT...LOC 1352Z 228DEG 33KT 3943 8690
WIND...HAIL 60MPH 1.00IN

$$

AB/JP

753 
WWUS53 KIND 091358
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
958 AM EDT SAT APR 9 2011

INC021-119-133-091408-
/O.EXP.KIND.SV.W.0050.000000T0000Z-110409T1400Z/
CLAY-OWEN-PUTNAM-
958 AM EDT SAT APR 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OWEN...EAST
CENTRAL CLAY AND SOUTHWESTERN PUTNAM COUNTIES WILL EXPIRE AT 1000 AM
EDT/900 AM CDT/...

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

LAT...LON 3939 8713 3955 8696 3946 8673 3926 8700
TIME...MOT...LOC 1358Z 228DEG 33KT 3947 8684

$$

AB/JP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 8:00 AM EDT	Severe Thunderstorm Warning	IND	Knox, Sullivan	45 min
Apr 9, 8:27 AM EDT	Severe Thunderstorm Warning	IND	Clay, Greene, Sullivan, Vigo	48 min
Apr 9, 9:03 AM EDT	Severe Thunderstorm Warning	IND	Greene, Knox, Sullivan	27 min
Apr 9, 9:06 AM EDT	Severe Thunderstorm Warning	IND	Daviess, Knox, Sullivan	39 min
Apr 9, 9:22 AM EDT	Severe Thunderstorm Warning	IND	Greene, Monroe, Owen	38 min
Apr 9, 9:31 AM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox, Sullivan	44 min
Apr 9, 9:47 AM EDT	Flash Flood Warning	IND	Greene, Owen, Sullivan, Vigo	5 hr
Apr 9, 10:10 AM EDT	Flash Flood Warning	IND	Brown, Daviess, Lawrence, Martin, Monroe	4 hr
Apr 9, 10:21 AM EDT	Severe Thunderstorm Warning	IND	Jackson, Lawrence	39 min
Apr 9, 12:00 PM EDT	River Flood Warning	IND	Lawrence, Martin	8 days
Apr 9, 12:00 PM EDT	River Flood Warning	IND	Daviess, Gibson, Knox, Pike	37 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.