Alert archive / Indiana / Tornado Warnings in 2011

Tornado Warning 28, NWS Indianapolis, IN

May 7, 2011Clay County, Sullivan County, Vigo County, Indiana

NWS Indianapolis, IN issued this tornado warning at May 7, 2011, 8:23 PM EDT for Clay County, Sullivan County, Vigo County, Indiana. It was in force for 52 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 7, 2011, 8:23 PM EDT (00:23 UTC)
Expired
May 7, 2011, 9:15 PM EDT
In force
52 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon

Counties Clay County, IN, Sullivan County, IN, Vigo County, IN

The radar

The Indianapolis radar (KIND), 99 km from the middle of the area, began a volume at 00:27 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.

What was reported inside it

TimeReportWhereRemark
May 7, 8:23 PM EDTHAIL 13 Sw Universal, INPEA TO QUARTER SIZED HAIL COVERED THE GROUND IN SHIRKIEVILLE.
May 7, 8:35 PM EDTTSTM WND DMGTerre Haute, INHOLE IN THE ROOF OF THE COMMUNITY THEATER IN TERRE HAUTE. TIME ESTIMATED FROM RADAR.
May 7, 8:35 PM EDTHAIL 1Terre Haute, INSOUTHERN TERRE HAUTE.
May 7, 8:39 PM EDTHAIL 1.25Terre Haute, IN
May 7, 8:45 PM EDTHAIL 1.53 Sse Terre Haute, INAT EATON DR. AND MCDANIEL RD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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, 0.4 hours before the alert went out and 139 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.

320 
WFUS53 KIND 080023
TORIND
INC021-153-167-080115-
/O.NEW.KIND.TO.W.0028.110508T0023Z-110508T0115Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN CLAY COUNTY IN WEST CENTRAL INDIANA...
  NORTHEASTERN SULLIVAN COUNTY IN SOUTHWEST INDIANA...
  VIGO COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 915 PM EDT

* AT 822 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 5 MILES WEST OF TERRE HAUTE...AND MOVING
  SOUTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  TERRE HAUTE...
  NORTH TERRE HAUTE...
  WEST TERRE HAUTE...
  INDIANA STATE UNIVERSITY...
  PRAIRIETON...
  RILEY...
  PIMENTO...
  CORY...
  HYMERA...
  CLAY CITY...
  COALMONT...

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 1 AND 16.

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 3961 8754 3961 8739 3928 8706 3916 8724
      3917 8725 3916 8725 3913 8729 3945 8754
TIME...MOT...LOC 0023Z 319DEG 30KT 3948 8747

$$

CP
1 follow-up statement
903 
WWUS53 KIND 080040
SVSIND

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

INC021-153-167-080115-
/O.CON.KIND.TO.W.0028.000000T0000Z-110508T0115Z/
CLAY-SULLIVAN-VIGO-
840 PM EDT SAT MAY 7 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN 
SULLIVAN...SOUTHWESTERN CLAY AND VIGO COUNTIES UNTIL 915 PM EDT...

AT 836 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 5 MILES SOUTH OF TERRE HAUTE...MOVING SOUTHEAST AT 
35 MPH. SPOTTERS ALSO RECENTLY REPORTED A ROTATING WALL CLOUD SOUTH 
OF TERRE HAUTE.

IN ADDITION...AT 839 PM  HALF DOLLAR SIZE HAIL WAS REPORTED IN 
TERRE HAUTE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  RILEY...PIMENTO...CORY...FARMERSBURG...HYMERA...CLAY CITY AND
  COALMONT.

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 3961 8754 3961 8739 3928 8706 3916 8724
      3917 8725 3916 8725 3913 8729 3945 8754
TIME...MOT...LOC 0038Z 319DEG 30KT 3938 8736

$$

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, 8:33 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, 10:12 PM EDTTornado WarningINDGreene, Lawrence, Martin48 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.