Alert archive / Indiana / Tornado Warnings in 2011

Tornado Warning 32, NWS Indianapolis, IN

May 7, 2011Greene County, Lawrence County, Martin County, Indiana

NWS Indianapolis, IN issued this tornado warning at May 7, 2011, 10:12 PM EDT for Greene County, Lawrence County, Martin County, Indiana. It was in force for 48 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
May 7, 2011, 10:12 PM EDT (02:12 UTC)
Expired
May 7, 2011, 11:00 PM EDT
In force
48 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon

Counties Greene County, IN, Lawrence County, IN, Martin County, IN

The radar

The Evansville,IN radar (KVWX), 104 km from the middle of the area, began a volume at 02:14 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.

IssuedProductOfficeLasted
May 7, 3:59 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.2 hours before the alert went out and 214 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2011-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2011-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
3086 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
113 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.

924 
WFUS53 KIND 080212
TORIND
INC055-093-101-080300-
/O.NEW.KIND.TO.W.0032.110508T0212Z-110508T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1012 PM EDT SAT MAY 7 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN GREENE COUNTY IN SOUTHWEST INDIANA...
  SOUTHWESTERN LAWRENCE COUNTY IN SOUTH CENTRAL INDIANA...
  NORTHERN MARTIN COUNTY IN SOUTHWEST INDIANA...

* UNTIL 1100 PM EDT

* AT 1009 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 7 MILES SOUTH OF BLOOMFIELD...OR 23 MILES WEST OF
  BEDFORD...AND MOVING SOUTHEAST AT 25 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  OWENSBURG AROUND 1025 PM EDT...
  INDIAN SPRINGS AND SILVERVILLE AROUND 1040 PM EDT...
  WILLIAMS AROUND 1050 PM EDT...
  HURON AROUND 1055 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3886 8692 3890 8692 3891 8696 3896 8700
      3903 8688 3876 8643 3869 8640 3868 8670
      3865 8670
TIME...MOT...LOC 0212Z 313DEG 21KT 3892 8689

$$

CP
2 follow-up statements
862 
WWUS53 KIND 080236
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1036 PM EDT SAT MAY 7 2011

INC055-080246-
/O.CAN.KIND.TO.W.0032.000000T0000Z-110508T0300Z/
GREENE-
1036 PM EDT SAT MAY 7 2011

...THE TORNADO WARNING FOR SOUTHEASTERN GREENE COUNTY IS CANCELLED...

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

LAT...LON 3885 8687 3889 8679 3891 8672 3876 8643
      3869 8640 3868 8670 3865 8670
TIME...MOT...LOC 0236Z 313DEG 21KT 3882 8675

$$

INC093-101-080300-
/O.CON.KIND.TO.W.0032.000000T0000Z-110508T0300Z/
LAWRENCE-MARTIN-
1036 PM EDT SAT MAY 7 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN MARTIN AND
SOUTHWESTERN LAWRENCE COUNTIES UNTIL 1100 PM EDT...

AT 1032 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 12 MILES NORTH OF SHOALS...OR 15 MILES WEST OF
BEDFORD...MOVING SOUTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  INDIAN SPRINGS...SILVERVILLE...WILLIAMS...HURON AND MITCHELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3885 8687 3889 8679 3891 8672 3876 8643
      3869 8640 3868 8670 3865 8670
TIME...MOT...LOC 0236Z 313DEG 21KT 3882 8675

$$

CP
144 
WWUS53 KIND 080259
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1059 PM EDT SAT MAY 7 2011

INC093-101-080309-
/O.EXP.KIND.TO.W.0032.000000T0000Z-110508T0300Z/
LAWRENCE-MARTIN-
1059 PM EDT SAT MAY 7 2011

...THE TORNADO WARNING FOR NORTHEASTERN MARTIN AND SOUTHWESTERN 
LAWRENCE COUNTIES WILL EXPIRE AT 1100 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3885 8687 3889 8679 3891 8672 3876 8643
      3869 8640 3868 8670 3865 8670
TIME...MOT...LOC 0259Z 313DEG 21KT 3873 8662

$$

CP

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 8:15 PM EDTSevere Thunderstorm WarningINDClay, Parke, Putnam, Vigo45 min
May 7, 8:23 PM EDTTornado WarningINDClay, Sullivan, Vigo52 min
May 7, 8:33 PM EDTAreal Flood AdvisoryINDClay, Fountain, Parke, Vermillion, Vigo5 hr
May 7, 8:55 PM EDTFlash Flood WarningINDClay, Greene, Owen, Putnam, Sullivan, Vigo6 hr
May 7, 9:02 PM EDTTornado WarningINDClay, Greene, Sullivan, Vigo43 min
May 7, 9:10 PM EDTTornado WarningINDSullivan, Vigo20 min
May 7, 9:26 PM EDTSevere Thunderstorm WarningINDSullivan, Vigo20 min
May 7, 9:37 PM EDTTornado WarningINDDaviess, Greene, Martin38 min
May 7, 10:45 PM EDTFlash Flood WarningINDDaviess, Greene, Knox, Lawrence, Martin6 hr

Nearby

Tornado Warnings in Indiana, 2011Every tornado warning in 2011Tornadoes 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.