Alert archive / Indiana / Tornado Warnings in 2011

Tornado Warning 29, NWS Indianapolis, IN

May 7, 20114 counties in Indiana

NWS Indianapolis, IN issued this tornado warning at May 7, 2011, 9:02 PM EDT for 4 counties in Indiana. It was in force for 43 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, 9:02 PM EDT (01:02 UTC)
Expired: May 7, 2011, 9:45 PM EDT
In force: 43 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon

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

The radar

The Indianapolis radar (KIND), 93 km from the middle of the area, began a volume at 01:03 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
May 7, 3:59 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.0 hours before the alert went out and 165 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: 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.

584 
WFUS53 KIND 080102
TORIND
INC021-055-153-167-080145-
/O.NEW.KIND.TO.W.0029.110508T0102Z-110508T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
902 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...
  WESTERN GREENE COUNTY IN SOUTHWEST INDIANA...
  NORTHEASTERN SULLIVAN COUNTY IN SOUTHWEST INDIANA...
  SOUTHEASTERN VIGO COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 945 PM EDT

* AT 859 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 13 MILES NORTHEAST OF SULLIVAN...OR 16 MILES
  SOUTHEAST OF TERRE HAUTE...AND MOVING SOUTHEAST AT 30 MPH.

  IN ADDITION...PING PONG SIZE HAIL SOUTH OF TERRE HAUTE WAS ALSO 
REPORTED WITH THIS STORM AT 850 PM.

* LOCATIONS IMPACTED INCLUDE...
  LINTON...
  BLOOMFIELD...
  HYMERA...
  COALMONT...
  JASONVILLE...
  DUGGER...
  VICKSBURG...
  WORTHINGTON...
  SWITZ CITY...
  LYONS...

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN INDIANAPOLIS.

&&

LAT...LON 3938 8722 3922 8706 3917 8707 3917 8701
      3902 8685 3891 8718 3928 8741
TIME...MOT...LOC 0101Z 328DEG 26KT 3925 8726

$$

CP

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 8:15 PM EDT	Severe Thunderstorm Warning	IND	Clay, Parke, Putnam, Vigo	45 min
May 7, 8:23 PM EDT	Tornado Warning	IND	Clay, Sullivan, Vigo	52 min
May 7, 8:33 PM EDT	Areal Flood Advisory	IND	Clay, Fountain, Parke, Vermillion, Vigo	5 hr
May 7, 8:55 PM EDT	Flash Flood Warning	IND	Clay, Greene, Owen, Putnam, Sullivan, Vigo	6 hr
May 7, 9:10 PM EDT	Tornado Warning	IND	Sullivan, Vigo	20 min
May 7, 9:26 PM EDT	Severe Thunderstorm Warning	IND	Sullivan, Vigo	20 min
May 7, 9:37 PM EDT	Tornado Warning	IND	Daviess, Greene, Martin	38 min
May 7, 10:12 PM EDT	Tornado Warning	IND	Greene, Lawrence, Martin	48 min
May 7, 10:45 PM EDT	Flash Flood Warning	IND	Daviess, Greene, Knox, Lawrence, Martin	6 hr

Nearby

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