Alert archive / Indiana / Tornado Warnings in 2012

Tornado Warning 15, NWS Indianapolis, IN

April 28, 2012Daviess County, Lawrence County, Martin County, Indiana

NWS Indianapolis, IN issued this tornado warning at Apr 28, 2012, 6:28 PM EDT for Daviess County, Lawrence County, Martin County, Indiana. It was in force for 19 min. 1 report 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: Apr 28, 2012, 6:28 PM EDT (22:28 UTC)
Expired: Apr 28, 2012, 6:47 PM EDT
In force: 19 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon

Counties Daviess County, IN, Lawrence County, IN, Martin County, IN

The radar

The Evansville,IN radar (KVWX), 86 km from the middle of the area, began a volume at 22:31 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

Time	Report	Where	Remark
Apr 28, 6:39 PM EDT	HAIL 0.88	Thales, IN

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.

Issued	Product	Office	Lasted
Apr 28, 4:33 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.5 hours before the alert went out and 233 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: 1019 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 681 m²/s²
0-3 km storm-relative helicity: 811 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

786 
WFUS53 KIND 282228
TORIND
INC027-093-101-282300-
/O.NEW.KIND.TO.W.0015.120428T2228Z-120428T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
628 PM EDT SAT APR 28 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN DAVIESS COUNTY IN SOUTHWEST INDIANA...
  SOUTHWESTERN LAWRENCE COUNTY IN SOUTH CENTRAL INDIANA...
  SOUTHERN MARTIN COUNTY IN SOUTHWEST INDIANA...

* UNTIL 700 PM EDT

* AT 623 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 8 MILES SOUTHWEST OF SHOALS...OR 21 MILES EAST OF
  PETERSBURG...AND MOVING SOUTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LACY...
  HURON...
  ROLAND...

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 3849 8694 3851 8699 3851 8707 3878 8690
      3869 8647 3868 8667 3866 8668 3854 8667
      3852 8669 3852 8683 3849 8688 3850 8693
TIME...MOT...LOC 2228Z 296DEG 41KT 3857 8684

$$

50

1 follow-up statement

895 
WWUS53 KIND 282247
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
647 PM EDT SAT APR 28 2012

INC027-093-101-282256-
/O.CAN.KIND.TO.W.0015.000000T0000Z-120428T2300Z/
DAVIESS-LAWRENCE-MARTIN-
647 PM EDT SAT APR 28 2012

...THE TORNADO WARNING FOR SOUTHEASTERN DAVIESS...SOUTHWESTERN
LAWRENCE AND SOUTHERN MARTIN COUNTIES IS CANCELLED...

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

LAT...LON 3849 8694 3851 8699 3851 8707 3878 8690
      3869 8647 3868 8667 3866 8668 3854 8667
      3852 8669 3852 8683 3849 8688 3850 8693
TIME...MOT...LOC 2246Z 296DEG 41KT 3848 8661

$$

50

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 5:26 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox, Sullivan	49 min
Apr 28, 5:39 PM EDT	Flash Flood Warning	IND	Knox, Sullivan	3 hr
Apr 28, 5:59 PM EDT	Tornado Warning	IND	Daviess, Knox, Martin	31 min

Nearby

Tornado Warnings in Indiana, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.